Emerson–Historic and Naturalized Monthly Streamflow for Selected Sites in the Red River of the North Basin in

North Dakota, Minnesota, and South Dakota, 1931-2001–Scientific Investigations Report 2005–5092

In cooperation with the Bureau of Reclamation

Historic and Naturalized Monthly Streamflow for Selected 

Sites in the Red River of the North Basin in North Dakota, 

Minnesota, and South Dakota, 1931-2001

Scientific Investigations Report 2005–5092

U.S. Department of the Interior

U.S. Geological Survey Printed on recycled paper
Historic and Naturalized Monthly 

Streamflow for Selected Sites in the Red River of the North Basin in North Dakota, Minnesota, and South Dakota, 1931-2001By Douglas G. Emerson
U.S. Department of the Interior

Gale A. Norton, SecretaryU.S. Geological SurveyCharles G. Groat, DirectorU.S. Geological Survey, Reston, Virginia: 2005For sale by U.S. Geological Survey, Information Services

Box 25286, Denver Federal CenterDenver, CO 80225For more information about the USGS and its products:Telephone: 1-888-ASK-USGSWorld Wide Web: http://www

usgs

gov/
 iii

ContentsAbstract. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Purpose and scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Description of study area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Methods used to estimate streamflow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Gaged and estimated historic monthly streamflow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Otter Tail River above Orwell Dam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Otter Tail River at the mouth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Bois de Sioux River above White Rock Dam. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Bois de Sioux River at the mouth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Red River of the North at Wahpeton, North Dakota . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Wild Rice River (North Dakota) at the mouth. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Red River of the North at Fargo, North Dakota . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Sheyenne River above Harvey, North Dakota. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Sheyenne River near Warwick, North Dakota . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Sheyenne River near Cooperstown, North Dakota. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Baldhill Creek at the mouth. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
iv 

Contents, ContinuedEstimated naturalized monthly streamflow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Selected sites on tributaries to the Red River of the North and on the Red River

of the North. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Bois de Sioux River at the mouth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Red River of the North at Wahpeton, North Dakota . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Sheyenne River below Baldhill Dam, North Dakota . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Supplements:

1. Gaged and estimated historic monthly streamflow for 35 sites in the Red River

of the North Basin, 1931-2001 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2. Gaged and estimated historic monthly streamflow for 28 additional sites in the

Red River of the North Basin, 1931-2001. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

3. Estimated naturalized monthly streamflow for 35 sites in the Red River of the

North Basin, 1931-2001 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

Figures
 v

Tables, Continued

10. Cyclic (monthly) and noncyclic (annual) correlation coefficients between

the Red River of the North at Halstad, MInnesota, and the base stations . . . . . . . . . . . . . . . . . . . . . . . . . . 22

11. Cyclic (monthly) and noncyclic (annual) correlation coefficients between

the Marsh River near Shelly, Minnesota, and the base stations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

12. Cyclic (monthly) and noncyclic (annual) correlation coefficients between

the Sand Hill River at Climax, Minnesota, and the base stations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

13. Cyclic (monthly) and noncyclic (annual) correlation coefficients between

the Turtle River at Manvel, North Dakota, and the base stations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

14. Cyclic (monthly) and noncyclic (annual) correlation coefficients between

the Forest River at Minto, North Dakota, and the base stations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

15. Cyclic (monthly) and noncyclic (annual) correlation coefficients between

the Middle River at Argyle, Minnesota, and the base stations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

16. Cyclic (monthly) and noncyclic (annual) correlation coefficients between the

Red River of the North at Drayton, North Dakota, and the base stations . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
vi 

Conversion Factors and Datum

Multiply By To obtain

Length

foot 0.3048 metermile 1.609 kilometer

Area

acre 0.4047 hectaresquare mile 2.590 square kilometer

Volume

acre-foot 1,233 cubic meter

Flow rate

cubic foot per second 0.02832 cubic meter per second

Hydraulic gradient

foot per mile 0

1894 meter per kilometer
Historic and Naturalized Monthly Streamflow for Selected 

Sites in the Red River of the North Basin in North Dakota, Minnesota, and South Dakota, 1931-2001By Douglas G. EmersonAbstract

Historic monthly streamflow data were compiled and 

missing historic and naturalized monthly streamflow data were estimated to develop a database of updated streamflow data for January 1931 through December 2001 (the data-development period) for 35 sites in the Red River of the North Basin. Of the 35 sites, 4 had gaged historic monthly streamflow data for the entire data-development period, 10 had gaged historic monthly streamflow data for part of the data-development period, and 21 had no gaged historic monthly streamflow data. To develop the database, a modified drainage-area ratio method, a maintenance 

Secretary of the Interior to conduct a comprehensive study of the future water-quantity and -quality needs in the Red River of the North Basin in North Dakota and the possible options to meet those water needs. The Bureau of Reclamation, which was charged with overall administration of the comprehensive study, formed a Technical Team and a Study Review Team to complete differing aspects of the study. The Technical Team was charged with developing plans for the study, performing a technical evaluation, drafting parts of a Needs and Options 

Report, and performing other day-to-day study activities. The Study Review Team was charged with reviewing draft products and providing input into the study process and products.
Red

River

of

the

North

MANITOBA

DEVILS LAKE BASIN

NOT USED IN STUDY

EX

PLANATION

Sheyenne River BasinRed River of the North Basin boundary

Subbasin boundarySite and map number (given in table 1 or 2)

99° 97°

95°

95°

49°

47° 47°

49°

99°

Base from U.S. Geological Survey

1:2,000,000, 1972

8 9

10

45

11

13

14

4612

44

1

1 

43

15

6

16

48

50

52

51

53

54

55

2322

47

49

7

5 2

2120

19

18

17

25

2426

28

27

56

58

59

63

65 66

33

34

35 64

32

31

30

57 60

62

61

29

Grand

Forks

East Grand

Forks

Alvarado

Big Woods

Argyle

Manvel

Minto

Arvilla

Grafton

Cavalier

Drayton

Akra

Neche

Emerson

FARGO

West

Fargo

MOORHEAD

Dilworth

Hendrum

Halstad

Shelly

Climax

Crookston

Mapleton

Lisbon

Valley

City

Dazey

Harvey Sheyenne

Warwick

Cooperstown

Amenia

Kelso

Hillsboro

Abercrombie

Breckenridge

Fergus Falls

Kindred

Upper

Red

Lake

Devils

Lake

Sheyenne

River

River

River

River

River

Pelican

Tail

River

River

R.

R.

R.

R.

Tongue

Pembina

R.

River

Rivers

S. Br.

N. Br. Roseau

River

Clearwater

Lost

R.

R.

Two

River

R.

R.

Middle

Tamarac

Thief

Red

Lake

Snake

Forest

Turtle

Park

Rice

Marsh River

R.

Sand

Hill

Wild

Buffalo

R.

R.

R.

Elm

Goose

Maple

Rush

Stump

Lake

Lake

Ashtabula

Beaver

Baldhill

Cr.

Cr.

Cart

Cr.

Lower

Red

Lake

Baldhill

Dam

2 Historic and Naturalized Monthly Streamflow for Selected Sites in the Red River of the North Basin
Table 1. Sites in the Red River of the North Basin for which historic and naturalized monthly streamflow data were compiled and/or 

estimated.

[--, no data]

Map number

(Figure 1) Site number Site name

Drainage area(square miles)

Total Contributing

1 No station number Otter Tail River above Orwell Dam 1,810 --2 No station number Otter Tail River at the mouth 1,960 --3 No station number Bois de Sioux River above White Rock Dam 1,160 --4 No station number Bois de Sioux River at the mouth 1,965 --5 05051500 Red River of the North at Wahpeton, N. Dak. 4,010 --6 No station number Wild Rice River (N. Dak.) at the mouth 1,665 --7 05054000 Red River of the North at Fargo, N. Dak. 6,800 --8 05054500 Sheyenne River above Harvey, N. Dak. 424 1549 05056000 Sheyenne River near Warwick, N. Dak. 2,070 760

10 05057000 Sheyenne River near Cooperstown, N. Dak. 6,470 1,27011 No station number Baldhill Creek at the mouth 397 --12 05058000 Sheyenne River below Baldhill Dam, N. Dak. 7,470 1,91013 05058500 Sheyenne River at Valley City, N. Dak. 7,810 2,11014 05058700 Sheyenne River at Lisbon, N. Dak. 8,190 2,490

Introduction 3
4 Historic and Naturalized Monthly Streamflow for Selected Sites in the Red River of the North Basin

Table 2. Description of sites used to estimate missing historic monthly streamflow data.[--, no data]

Map

number

(Figure 1)

Site

number Site name

Drainage area(square miles) Period of record through 2001

(complete months)

Total Contrib- uting

36 05045950 Orwell Reservoir near Fergus Falls, Minn. 1,739 -- March 1953 through December 200137 05046000 Otter Tail River below Orwell Dam near

Fergus Falls, Minn. 

1,740 -- October 1930 through December 2001

38 05049000 Mustinka River above Wheaton, Minn. 834 -- October 1915 through September 1924, 

October 1930 through September 1958

39 05049700 Lake Traverse near Wheaton, Minn. -- -- January 1942 through December 200140 05050000 Bois de Sioux River near White Rock, S. Dak. 1,160 -- October 1941 through December 200141 05050500 Bois de Sioux River near Fairmount, N. Dak. 1,540 -- April 1919 through September 194442 05051300 Bois de Sioux River near Doran, Minn. 1,880 -- October 1989 through December 2001

5 05051500 Red River of the North at Wahpeton, N. Dak. 4,010 -- May through October 1942,

March 1943 through December 2001

43 05053000 Wild Rice River near Abercrombie, N. Dak. 2,080 1,490 April 1932 through December 2001

7 05054000 Red River of the North at Fargo, N. Dak. 6,800 -- May 1901 through December 2001
Introduction 5

50 05062200 Elm River near Kelso, N. Dak. 194 -- October 1955 through September 1963,

October 1980 through August 1986(incomplete winter data for October 1981through February 1986)

51 05064000 Wild Rice River at Hendrum, Minn. 1,560 -- April 1944 through September 1984,

May 1985 through December 2001

23 05064500 Red River of the North at Halstad, Minn. 21,800 -- April 1936 through June 1937,

April 1942 through September 1960,June 1961 through December 2001

52 05066500 Goose River at Hillsboro, N. Dak. 1,203 1,093 April 1931 through October 1932,

April through June 1933,April 1934 through December 2001

53 05067500 Marsh River near Shelly, Minn. 220 -- March 1944 through September 1983,

April 1985 through October 2001(incomplete winter data for November 1989 through December 2001)

54 05069000 Sand Hill River at Climax

Minn

420 -- April 1943 through September 1984

Table 2. Description of sites used to estimate missing historic monthly streamflow data.—Continued[--, no data]

Map

number

(Figure 1)

Site

number Site name

Drainage area(square miles) Period of record through 2001

(complete months)

Total Contrib- uting
6 Historic and Naturalized Monthly Streamflow for Selected Sites in the Red River of the North Basin

33 05092000 Red River of the North at Drayton, N. Dak. 34,800 -- April through October 1936,

April through June 1937,April through May 1942, April 1943,April through June 1945,April through June 1946,May through August 1947,May through July 1948,April 1949 through December 2001

64 05100000 Pembina River at Neche, N. Dak. 3,410 -- May 1903 through September 1908,

June 1909 through September 1915,April 1919 through December 2001

65 05101000 Tongue River at Akra, N. Dak. 160 -- April through June 1950,

October 1951 through December 2001(no winter data for October 1982 throughDecember 2001)

66 05101500 Tongue River at Cavalier, N. Dak. 167 -- October 1938 through October 195135 05102500 Red River of the North at Emerson, Manitoba 40,200 -- May 1912 through December 2001

Table 2. Description of sites used to estimate missing historic monthly streamflow data.—Continued[--, no data]

Map

number

(Figure 1)

Site

number Site name

Drainage area(square miles) Period of record through 2001

(complete months)

Total Contrib- uting
Methods Used to Estimate Streamflow 7

The Sheyenne River Basin lies in two distinct 

physiographic areas. The drift prairie area extends from the headwaters to near Lisbon, N. Dak., and the glacial Lake 

Agassiz area extends from near Lisbon, N. Dak., to the 

confluence of the Sheyenne River and the Red River of the North. A hilly delta topography exists from Valley City, N. Dak., to near Kindred, N. Dak. Most of the Sheyenne River 

Valley from the headwaters to Kindred, N. Dak., is incised into 

glacial till. The valley from Sheyenne, N. Dak., to Kindred, 

N. Dak., ranges from about 100 to 200 feet in depth and from 

0.2 to 2 miles in width. The Sheyenne River from Kindred, 

N. Dak., to its confluence with the Red River of the North flows 

over lacustrine deposits of glacial Lake Agassiz. The average slope of the river is 1.5 feet per mile in the drift prairie and hilly 

delta areas and about 1 foot per mile in the glacial Lake Agassiz 

area.

No flow has been recorded at times in the upper reaches of 

the Sheyenne River. Flow in the lower reaches of the river is regulated partly by releases from Baldhill Dam, which was completed in 1949. Lake Ashtabula, formed by Baldhill Dam, has a storage capacity of 69,100 acre-feet between the invert of 

the outlet conduit and the normal pool elevation. Lake Ashtabula is operated for flood control (the capacity at a maximum pool elevation of 1,278.5 feet is 157,500 acre-feet), 

municipal water supply, recreation, and stream-pollution abatement through low-flow augmentation.

Xi is the streamflow during month i for the 

gaged site (also referred to as the base station), in cubic feet per second;

Ay is the drainage area for the site of interest, in 

square miles;

Ax is the drainage area for the gaged site, in 

square miles; and

α is the exponent of the drainage-area ratio 

AyAx----- ⎝ ⎠ ⎛ ⎞ .

The assumption is made that the exponent, 

α , is 1. That may be 

the best assumption to make if no streamflow data are available for a site of interest. However, Emerson and others (2005) determined in an evaluation of the drainage-area ratio method used to estimate streamflow in the Red River of the North Basin that the exponent varied seasonally. Therefore, the following equations (the modified drainage-area ratio method) were used to estimate streamflow for this study:

Y

 ̃

i Xi

AyAx----- ⎝ ⎠ ⎛ ⎞ 0.85

= (winter streamflow), (2)

Y

 ̃

X

Ay

⎝ ⎠ ⎛ ⎞ 0.91

= (spring streamflow)

and (3)
s x1 ( )

8 Historic and Naturalized Monthly Streamflow for Selected Sites in the Red River of the North Basin

 is the standard deviation of 

N1 years of gaged 

streamflow for the base station, in cubic feet per second;

xi is the gaged streamflow during month i for 

the base station, in cubic feet per second; and

m x1 ( ) is the mean of 

N1 years of gaged streamflow 

for the base station, in cubic feet per second.

The procedure used to estimate the missing data for this 

study was developed by Alley and Burns (1983). The Alley and Burns (1983) procedure has the capability of selecting an ordinary least-squares regression method, a regression plus noise method, the MOVE.1 method, or a maintenance of variance extension type 2 (MOVE.2) method to estimate streamflow. The Alley and Burns (1983) procedure selects the best base station from several base stations and also has an option that allows for consideration of both cyclic (monthly) and noncyclic (annual) extension equations for each individual prediction. With the cyclic (monthly) equation, missing data are estimated from streamflow data for the month selected; with the noncyclic (annual) equation, missing data are estimated from all concurrent streamflow data for the period of record. In the Alley and Burns (1983) procedure, missing data for a particular month for a site of interest are estimated using both the cyclic (monthly) equation and the noncyclic (annual) equation, and a standard error of prediction is computed for both estimates. The 

i

h

h

h

ll

d

d 

f 

di

i

h

were used (table 2) are not provided in supplement 2 but are available on the U.S. Army Corps of Engineers’ web page at http://www.MVP-WC.usace.army.mil. The methods used to 

compile and/or estimate the historic monthly streamflow data are shown in figure 2. Although both the modified drainagearea ratio method and the Alley and Burns MOVE.1 method could have been used to estimate the missing data for some of the sites, only the method used to estimate the final data is discussed in the following sections. 

When the modified drainage-area ratio method was used, 

the gaged site nearest to the site of interest generally was selected as the base station if data for the gaged site were 

available for the period for which streamflow was to be estimated. The contributing drainage area (table 2), when 

available, was used in lieu of the total drainage area in equations 2-4. Contributing drainage area is subjective and will 

vary between wet and dry years. The large difference between the total and the contributing drainage area for the Sheyenne River sites that are downstream from the Sheyenne River near Warwick is because of the noncontributing drainage area (3,800 square miles) for the closed Devils Lake Basin.

When the Alley and Burns MOVE.1 method was used, the 

base stations were selected on the basis of the similarity of basin 
05046000

Otter Tail River below

Orwell Dam near

Fergus Falls, Minn.

Otter Tail River

at the mouth

Bois de Sioux River

above White Rock

Dam

05049000

Mustinka River above

Wheaton, Minn.

05050500

Bois de Sioux River

near Fairmount,

N. Dak.

05051300

Bois de Sioux River

near Doran, Minn.

Bois de Sioux River

at the mouth

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

Figure 2. Methods used to compile and/or estimate historic monthly streamflow data.

05050000

Bois de Sioux River

near White Rock,

S. Dak.

Alley and Burns MOVE.1 Modified drainage-area ratio Gaged 
1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

Figure 2. Methods used to compile and/or estimate historic monthly streamflow data--Continued.

05053000

Wild Rice River near

Abercrombie, N. Dak.

Wild Rice River

(N. Dak.) at the

mouth

05054000

Red River of the

North at Fargo,

N. Dak.

05054500

Sheyenne River

above Harvey,

N. Dak.

05055000

Sheyenne River

near Harvey,

N. Dak.

05056000

Sheyenne River

near Warwick,

N. Dak.

05057000

Sheyenne River

near Cooperstown,

N. Dak.

05057200

Baldhill Creek near

Dazey, N. Dak.

Alley and Burns MOVE.1 Modified drainage-area ratio Gaged 
1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

Figure 2. Methods used to compile and/or estimate historic monthly streamflow data--Continued.

05058000

Sheyenne River

below Baldhill Dam,

N. Dak.

05058500

Sheyenne River at

Valley City, N. Dak.

05059000

Sheyenne River near

Kindred, N. Dak.

05059500

Sheyenne River at

West Fargo, N. Dak.

05060000

Maple River near

Mapleton, N. Dak.

Maple River at

the mouth

05060500

Rush River at

Amenia, N. Dak.

05058700

Sheyenne River at

Lisbon, N. Dak.

Alley and Burns MOVE.1 Modified drainage-area ratio Gaged 
1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

Figure 2. Methods used to compile and/or estimate historic monthly streamflow data--Continued.

Sheyenne River at

the mouth

05062000

Buffalo River near

Dilworth, Minn.

05062200

Elm River near

Kelso, N. Dak.

Elm River at

the mouth

05064000

Wild Rice River at

Hendrum, Minn.

Wild Rice River

(Minn.) at the

mouth

05064500

Red River of the

North at Halstad,

Minn.

Buffalo River at

the mouth

Alley and Burns MOVE.1 Modified drainage-area ratio Gaged 
1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

Figure 2. Methods used to compile and/or estimate historic monthly streamflow data--Continued.

Hillsboro, N. Dak.

Goose River at

the mouth

05067500

Marsh River near

Shelly, Minn.

05069000

Sand Hill River at

Climax, Minn.

Sand Hill River at

the mouth

05079000

Red Lake River at

Crookston, Minn.

Red Lake River at

the mouth

05082500

Red River of the

North at Grand

Forks, N. Dak.

Marsh River at

the mouth

Alley and Burns MOVE.1 Modified drainage-area ratio Gaged 
1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

05083000

Turtle River at

Manvel, N. Dak.

Turtle River at

the mouth

05084500

Forest River near

Minto, N. Dak.

05085000

Forest River at

Minto, N. Dak.

Forest River at

the mouth

05086000

Snake River at

Alvarado, Minn.

05086500

Snake River above

Middle River near

Big Woods, Minn.

05087500

Middle River at

Argyle, Minn.

Figure 2. Methods used to compile and/or estimate historic monthly streamflow data--Continued.

Alley and Burns MOVE.1 Modified drainage-area ratio Gaged 
1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

1930 1940 1950 1960 1970 1980 

Figure 2. Methods used to compile and/or estimate historic monthly streamflow data--Continued.

05090000

Park River at

Grafton, N. Dak.

Park River at

the mouth

05101500

Tongue River at

Cavalier, N. Dak.

Pembina River

at the mouth

05102500

Red River of the

North at Emerson,

Manitoba

05101000

Tongue River at

Akra, N. Dak.

05092000

Red River of the

North at Drayton,

N. Dak.

05100000

Pembina River at

Neche, N. Dak.

Alley and Burns MOVE.1 Modified drainage-area ratio Gaged 
16 Historic and Naturalized Monthly Streamflow for Selected Sites in the Red River of the North Basin

Otter Tail River at the Mouth

Streamflow data have not been collected for the Otter Tail 

River at the mouth. The water-balance method was used to estimate historic streamflow for the Otter Tail River at the mouth by subtracting historic streamflow for the Bois de Sioux River at the mouth from historic streamflow for the Red River of the North at Wahpeton.

Bois de Sioux River above White Rock Dam

Streamflow data have not been collected for the Bois de 

Sioux River above White Rock Dam (inflows to Lake Traverse). Streamflow data that were estimated by the U.S. Army Corps of Engineers (Kenton E. Spading, written commun., 2000) for the design of White Rock Dam were used to estimate historic streamflow for the Bois de Sioux River above White Rock Dam for January 1931 through December 1941. The modified drainage-area ratio method was used to estimate historic streamflow for the Bois de Sioux River above White Rock Dam for January 1942 through December 2001. The Mustinka River above Wheaton was used as the base station, and 1,160 square miles/834 square miles was used as the drainage-area ratio.

Bois de Sioux River at the Mouth

Streamflow data have not been collected for the Bois de 

Sioux River at the mouth. Historic streamflow for the Bois de Sioux River at the mouth was estimated using the following equation:

Qh bm – Qh rw – Qh oo – –

Qh bw – [ ] –

Abm

Abw

–

Aom

Aoo

–

Abm

Abw ( ) +

–

-----------------------------------------------------------

+

Qh bw –

= (6)

where

Qh bm – is the estimated historic streamflow for the 

Bois de Sioux River at the mouth, in cubic feet per second;

Qh rw – is the historic streamflow for the Red River of 

the North at Wahpeton, in cubic feet per second;

Qh oo – is the historic streamflow for the Otter Tail 

River below Orwell Dam near Fergus Falls, in cubic feet per second;

Qh bw – is the historic streamflow for the Bois de Sioux 

River near White Rock, in cubic feet per second;

A

is the contributing drainage area for the Bois 
Gaged and Estimated Historic Monthly Streamflow 17

Historic streamflow for the Otter Tail River below Orwell Dam near Fergus Falls and historic streamflow for the Bois de Sioux River near White Rock were subtracted from historic streamflow for the Red River of the North at Wahpeton. The difference then was multiplied by a drainage-area ratio to estimate that part of the streamflow that was attributable to the lower part of the Bois de Sioux River and that part of the streamflow then was added to the streamflow for the Bois de Sioux River near White Rock.

Streamflow data for the Bois de Sioux River near White 

Rock are available for October 1941 through December 2001. Streamflow data that were estimated by the U.S. Army Corps of Engineers (Kenton E. Spading, written commun., 2000) for the 

Bois de Sioux River near White Rock were used as the data for January 1931 through September 1941.

Streamflow data for the Bois de Sioux River near 

Fairmount are available for January 1931 through September 1944, and streamflow data for the Bois de Sioux River near Doran are available for October 1989 through December 2001. For those periods, the streamflows and drainage areas for those stations were used in equation 6 in place of the streamflow and drainage area for the Bois de Sioux River near White Rock. For months that had negative streamflows, historic streamflow for the Bois de Sioux River at the mouth was set equal to historic streamflow for the Bois de Sioux River near Fairmount or 

and 4,010 square miles/1,810 plus 1,540 square miles was used as the drainage-area ratio.

Wild Rice River (North Dakota) at the Mouth

Streamflow data have not been collected for the Wild Rice 

River (North Dakota) at the mouth. The modified drainage-area ratio method was used to estimate historic streamflow for the Wild Rice River (North Dakota) at the mouth for January 1931 through December 2001. The Wild Rice River near Abercrombie was used as the base station, and 1,665 square miles/1,490 square miles was used as the drainage-area ratio.

Streamflow data for the Wild Rice River near 

Abercrombie are available for April 1932 through December 2001. The Alley and Burns MOVE.1 method was used to estimate historic streamflow for the Wild Rice River near 

Abercrombie for January 1931 through March 1932. The Red River of the North at Fargo and the Sheyenne River at West Fargo were selected as potential base stations. The Wild Rice River near Abercrombie and the base stations had up to 645 months of concurrent nonzero streamflow data. The cyclic and noncyclic correlation coefficients are given in table 4.

Red River of the North at Fargo, North Dakota
18 Historic and Naturalized Monthly Streamflow for Selected Sites in the Red River of the North Basin

as the base station, and 154 square miles/3,090 square miles was used as the drainage-area ratio. For August 1938 through September 1945, the Sheyenne River at Valley City was used as the base station, and 154 square miles/2,110 square miles was 

used as the drainage-area ratio. For October 1945 through September 1955, the Sheyenne River near Harvey was used as the base station, and 154 square miles/174 square miles was 

used as the drainage-area ratio.

Sheyenne River near Warwick, North Dakota

Streamflow data for the Sheyenne River near Warwick are 

available for October 1949 through December 2001. The modified drainage-area ratio method was used to estimate historic streamflow for the Sheyenne River near Warwick for January 1931 through September 1949. For January 1931 through September 1944, the Sheyenne River at West Fargo was used as the base station, and 760 square miles/3,090 square miles was used as the drainage-area ratio. For October 1944 through September 1949, the Sheyenne River near Cooperstown was used as the base station, and 760 square miles/1,270 square miles was used as the drainage-area ratio.

Sheyenne River near Cooperstown

North Dakota

Baldhill Creek at the Mouth

Streamflow data have not been collected for Baldhill 

Creek at the mouth. The modified drainage-area ratio method was used to estimate historic streamflow for Baldhill Creek at the mouth for January 1931 through December 2001. Baldhill 

Creek near Dazey was used as the base station, and 397 square miles/351 square miles was used as the drainage-area ratio.

Streamflow data for Baldhill Creek near Dazey are 

available for April 1956 through December 2001. The modified 

drainage-area ratio method was used to estimate historic streamflow for Baldhill Creek near Dazey for January 1931 through July 1949. For January 1931 through March 1938 and July 1938, the Sheyenne River at West Fargo was used as the base station, and 351 square miles/3,090 square miles was used as the drainage-area ratio. For April through June 1938 and August 1938 through September 1944, the Sheyenne River at Valley City was used as the base station, and 351 square miles/2,110 square miles was used as the drainage-area ratio. For October 1944 through July 1949, the Sheyenne River at Valley City and the Sheyenne River near Cooperstown were used as the base stations, and 351 square miles/2,110 square miles and 351 square miles/1,270 square miles were used as the respective drainage-area ratios. For those months, the streamflows 
Gaged and Estimated Historic Monthly Streamflow 19

Sheyenne River below Baldhill Dam, North Dakota

Streamflow data for the Sheyenne River below Baldhill 

Dam are available for October 1949, shortly after the completion of Baldhill Dam, through December 2001. The 

modified drainage-area ratio method was used to estimate historic streamflow for the Sheyenne River below Baldhill Dam for January 1931 through September 1949. For January 1931 through March 1938 and July 1938, the Sheyenne River at West 

Fargo was used as the base station, and 1,910 square miles/

3,090 square miles was used as the drainage-area ratio. For 

April through June 1938 and August 1938 through September 1949, the Sheyenne River at Valley City was used as the base station, and 1,910 square miles/2,110 square miles was used as 

the drainage-area ratio.

Sheyenne River at Valley City, North Dakota

Streamflow data for the Sheyenne River at Valley City are 

available for April 1919, April through June 1938, August 1938 through September 1975, March through September 1995, and March through September 1996. The modified drainage-area ratio method was used to estimate historic streamflow for the Sheyenne River at Valley City for January 1931 through March 

Sheyenne River near Kindred, North Dakota

Streamflow data for the Sheyenne River near Kindred are 

available for August 1949 through December 2001. The modified drainage-area ratio method was used to estimate historic streamflow for the Sheyenne River near Kindred for January 1931 through July 1949. The Sheyenne River at West Fargo was used as the base station, and 3,020 square miles/

3,090 square miles was used as the drainage-area ratio.

Sheyenne River at West Fargo, North Dakota

Streamflow data for the Sheyenne River at West Fargo are 

available for April 1903 through October 1905, March through August 1919, and September 1929 through December 2001. Therefore, no streamflow was estimated for this site.

Maple River at the Mouth

Streamflow data have not been collected for the Maple 

River at the mouth. The modified drainage-area ratio method was used to estimate historic streamflow for the Maple River at the mouth for January 1931 through December 2001. The 

Maple River near Mapleton was used as the base station, and 1,489 square miles/1,379 square miles was used as the 
Table 6. Cyclic (monthly) and noncyclic (annual) correlation coefficients between the Maple River near Mapleton, North Dakota, and 

the base stations.

Base station

Correlation coefficient

Cyclic

Noncyclic

Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

Sheyenne River at West Fargo, N. Dak. 0.72 0.54 0.71 0.90 0.78 0.64 0.85 0.59 0.66 0.77 0.81 0.78 0.80Goose River at Hillsboro, N. Dak. 0.55 0.60 0.80 0.91 0.90 0.60 0.62 0.47 0.67 0.79 0.79 0.69 0.81

20 Historic and Naturalized Monthly Streamflow for Selected Sites in the Red River of the North BasinBuffalo River near Dilworth, and the Goose River at Hillsboro were selected as potential base stations. The Rush River at Amenia and the base stations had up to 417 months of 

concurrent nonzero streamflow data. The cyclic and noncyclic correlation coefficients are given in table 7.

Sheyenne River at the Mouth

Streamflow data have not been collected for the Sheyenne 

River at the mouth. The modified drainage-area ratio method was used to estimate historic streamflow for the Sheyenne River 

January and 0.76 for February. The noncyclic correlation coefficient was 0.82.

Elm River at the Mouth

Streamflow data have not been collected for the Elm River 

at the mouth. The modified drainage-area ratio method was used to estimate historic streamflow for the Elm River at the mouth for January 1931 through December 2001. The Elm River near Kelso was used as the base station, and 505 square 
Table 7. Cyclic (monthly) and noncyclic (annual) correlation coefficients between the Rush River at Amenia, North Dakota, and the

base stations.

Base station

Correlation coefficient

Cyclic

Noncyclic

Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

Sheyenne River at West Fargo, N. Dak. 0.56 0.56 0.65 0.85 0.75 0.59 0.42 0.71 0.49 0.67 0.62 0.78 0.71Buffalo River near Dilworth, Minn. 0.67 0.64 0.51 0.84 0.75 0.66 0.59 0.49 0.36 0.65 0.68 0.75 0.73Goose River at Hillsboro, N. Dak. 0.38 0.64 0.63 0.93 0.86 0.58 0.55 0.38 0.27 0.68 0.62 0.75 0.73

Table 8. Cyclic (monthly) and noncyclic (annual) correlation coefficients between the Elm River near Kelso, North Dakota, and the base 

stations.

Base station

Correlation coefficient

Cyclic

Noncyclic

Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

Sheyenne River at West Fargo, N. Dak. (1) (1) 0.66 0.83 0.80 0.50 0.95 (1) (1) (1) (1) (1) 0.70

Gaged and Estimated Historic Monthly Streamflow 21
Table 9. Cyclic (monthly) and noncyclic (annual) correlation coefficients between the Wild Rice River at Hendrum, Minnesota, and the

base stations.

Base station

Correlation coefficient

Cyclic

Noncyclic

Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

Sheyenne River at West Fargo, N. Dak. 0.68 0.71 0.73 0.69 0.54 0.58 0.66 0.59 0.57 0.60 0.60 0.65 0.76Buffalo River near Dilworth, Minn. 0.68 0.69 0.82 0.92 0.91 0.78 0.79 0.79 0.74 0.79 0.83 0.79 0.86

Table 10. Cyclic (monthly) and noncyclic (annual) correlation coefficients between the Red River of the North at Halstad, Minnesota, 

and the base stations.

Base station

Correlation coefficient

Cyclic

Noncyclic

Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

Red River of the North at Fargo, N. Dak. 0.97 0.97 0.43 0.64 0.63 0.71 0.73 0.91 0.89 0.88 0.91 0.94 0.78Red River of the North at Grand Forks, N. Dak. 0.88 0.86 0.41 0.65 0.56 0.70 0.66 0.90 0.86 0.93 0.91 0.91 0.78

22 Historic and Naturalized Monthly Streamflow for Selected Sites in the Red River of the North Basin
Table 11. Cyclic (monthly) and noncyclic (annual) correlation coefficients between the Marsh River near Shelly, Minnesota, and the

base stations.

Base station

Correlation coefficient

Cyclic

Noncyclic

Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

Sheyenne River at West Fargo, N. Dak. -0.26 -0.57 0.63 0.62 0.55 0.49 0.53 0.25 0.16 0.24 0.26 -0.04 0.58Buffalo River near Dilworth, Minn. 0.77 0.35 0.76 0.84 0.69 0.46 0.55 0.46 0.29 0.33 0.22 -0.08 0.66Goose River at Hillsboro, N. Dak. -0.72 0.17 0.78 0.53 0.54 0.36 0.49 0.42 0.22 0.29 0.39 0.10 0.62Park River at Grafton, N. Dak. -0.21 -0.31 0.50 0.53 0.46 0.19 0.13 0.31 0.23 0.36 0.26 -0.07 0.54

Gaged and Estimated Historic Monthly Streamflow 23

was used to estimate historic streamflow for the Sand Hill River at the mouth for January 1931 through December 2001. The Sand Hill River at Climax was used as the base station, and 424 square miles/420 square miles was used as the drainagearea ratio.

Streamflow data for the Sand Hill River at Climax are 

available for April 1943 through September 1984 and June 1985 through December 2001 (incomplete winter data for 

Turtle River at the Mouth

Streamflow data have not been collected for the Turtle 

River at the mouth. The modified drainage-area ratio method was used to estimate historic streamflow for the Turtle River at the mouth for January 1931 through December 2001. The Turtle River at Manvel was used as the base station, and 635 square miles/556 square miles was used as the drainage-area ratio.
Table 12. Cyclic (monthly) and noncyclic (annual) correlation coefficients between the Sand Hill River at Climax, Minnesota, and the 

base stations.

Base station

Correlation coefficient

Cyclic

Noncyclic

Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

Sheyenne River at West Fargo, N. Dak. 0.67 0.60 0.76 0.75 0.73 0.57 0.69 0.72 0.65 0.65 0.66 0.72 0.81Buffalo River near Dilworth, Minn. 0.71 0.83 0.85 0.86 0.83 0.54 0.63 0.64 0.63 0.77 0.78 0.80 0.86Goose River at Hillsboro, N. Dak. 0.67 0.67 0.81 0.85 0.82 0.67 0.62 0.71 0.68 0.74 0.68 0.85 0.83Park River at Grafton, N. Dak. 0.33 0.36 0.75 0.62 0.71 0.35 0.51 0.54 0.15 0.34 0.30 0.26 0.70

Table 13. Cyclic (monthly) and noncyclic (annual) correlation coefficients between the Turtle River at Manvel, North Dakota, and the 

base stations.

Base station

Correlation coefficient

Cyclic

Noncyclic

Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

24 Historic and Naturalized Monthly Streamflow for Selected Sites in the Red River of the North Basin
Table 14. Cyclic (monthly) and noncyclic (annual) correlation coefficients between the Forest River at Minto, North Dakota, and the

base stations.

Base station

Correlation coefficient

Cyclic

Noncyclic

Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

Goose River at Hillsboro, N. Dak. 0.51 0.45 0.88 0.90 0.88 0.63 0.71 0.47 0.52 0.56 0.72 0.73 0.77Park River at Grafton, N. Dak. 0.56 0.46 0.82 0.94 0.88 0.75 0.79 0.69 0.53 0.55 0.42 0.40 0.78Pembina River at Neche, N. Dak. 0.63 0.61 0.59 0.78 0.76 0.51 0.61 0.64 0.53 0.41 0.65 0.73 0.77

Gaged and Estimated Historic Monthly Streamflow 25

Streamflow data for the Middle River at Argyle are 

available for April through September 1945, October 1950 through September 1981, and March 1982 through December 2001. The Alley and Burns MOVE.1 method was used to estimate historic streamflow for the Middle River at Argyle for January 1931 through March 1945, October 1945 through 

September 1950, and October 1981 through February 1982. The Goose River at Hillsboro, the Sand Hill River at Climax, the Park River at Grafton, and the Pembina River at Neche, were selected as potential base stations

The Middle River at 

cyclic correlation coefficients were 0.45 for February, 0.75 for March, and 0.85 for April.

Red River of the North at Drayton, North Dakota

Streamflow data for the Red River of the North at Drayton 

are available for April through October 1936, April through June 1937, April through May 1942, April 1943, April through June 1945, April through June 1946, May through August 1947, 
Table 15. Cyclic (monthly) and noncyclic (annual) correlation coefficients between the Middle River at Argyle, Minnesota, and the base 

stations.

Base station

Correlation coefficient

Cyclic

Noncyclic

Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

Goose River at Hillsboro, N. Dak. 0.42 0.32 0.68 0.77 0.71 0.66 0.45 0.44 0.46 0.55 0.59 0.51 0.71Sand Hill River at Climax, Minn. 0.45 0.45 0.72 0.80 0.79 0.72 0.60 0.53 0.48 0.54 0.54 0.52 0.75Park River at Grafton, N. Dak. 0.22 0.46 0.75 0.75 0.80 0.49 0.62 0.48 0.48 0.43 0.40 0.16 0.70Pembina River at Neche, N. Dak. 0.56 0.42 0.58 0.66 0.74 0.44 0.43 0.53 0.52 0.39 0.52 0.48 0.68

Table 16. Cyclic (monthly) and noncyclic (annual) correlation coefficients between the Red River of the North at Drayton, North Dakota, 

and the base stations.

Base station

Correlation coefficient

Cyclic

Noncyclic

Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.

26 Historic and Naturalized Monthly Streamflow for Selected Sites in the Red River of the North Basin
Estimated Naturalized Monthly Streamflow 27

1986; Chris Bader, written commun., 2001), the Minnesota Department of Natural Resources (Gil Young, written commun., 1987; Sean Hunt, written commun., 2001), the North Dakota Department of Health, and the Minnesota Pollution Control Agency. The North Dakota State Water Commission has recorded surface-water withdrawals reported by water users since 1965. Surface-water withdrawals reported for 1976-2001 are considered by the North Dakota State Water Commission to 

be the most reliable. The Minnesota Department of Natural Resources has data for 1978-2001 for surface-water withdrawals upstream from Fargo and for 1981-2001 for surface-water withdrawals downstream from Fargo.

Selected Sites on Tributaries to the Red River of the North and on the Red River of the North

Naturalized streamflow for 19 sites on tributaries to the 

Red River of the North was estimated by adding surface-water withdrawals to and subtracting return flows from gaged and estimated historic streamflow. The following equation was used:

Qn sta – Qh sta – Qw sta – Qr sta – = + – (7)

Qw oo – is the total of all surface-water withdrawals 

upstream from the Otter Tail River above Orwell Dam, in cubic feet per second; and

Qr oo – is the total of all return flows upstream from 

the Otter Tail River above Orwell Dam, in cubic feet per second.

Equation 7 was used to estimate naturalized streamflow for 19 sites: Otter Tail River above Orwell Dam, Bois de Sioux River above White Rock Dam, Wild Rice River (North Dakota) at the mouth, Sheyenne River above Harvey, Baldhill Creek at the mouth, Maple River at the mouth, Rush River at the mouth, Buffalo River at the mouth, Elm River at the mouth, Wild Rice River (Minnesota) at the mouth, Goose River at the mouth, Marsh River at the mouth, Sand Hill River at the mouth, Red Lake River at the mouth, Turtle River at the mouth, Forest River at the mouth, Snake River at the mouth, Park River at the mouth, and Pembina River at the mouth. 

Naturalized streamflow for 13 sites was estimated by 

adding the difference between the naturalized and the gaged and estimated historic streamflow for the site immediately upstream from the site of interest to the gaged and estimated historic streamflow for the site of interest, and then adding the surfacewater withdrawals between the site of interest and the site immediately upstream and subtracting the return flows between 
Qr

28 Historic and Naturalized Monthly Streamflow for Selected Sites in the Red River of the North Basin

is the total of all return flows between the site 

of interest and the site immediately upstream, in cubic feet per second;

Qn t – is the estimated naturalized streamflow for the 

tributary inflow between the site of interest and the site immediately upstream , in cubic 

feet per second; and

Qh t – is the gaged and estimated historic streamflow 

for the tributary inflow between the site of interest and the site immediately upstream, 

in cubic feet per second.

For example, naturalized streamflow for the Otter Tail River at the mouth was estimated as follows:

Qn om – Qh om – Qn oao – Qh oao – – Qw om – Qr om – = + + – (10)

where

Qn om – is the estimated naturalized streamflow for the 

Otter Tail River at the mouth, in cubic feet per second;

Qh om – is the estimated historic streamflow for the 

Otter Tail River at the mouth, in cubic feet per second;

Q

is the estimated naturalized streamflow for the 

by adding the estimated historic streamflow for the Bois de Sioux River at the mouth to the surface-water withdrawals upstream from that site and then subtracting the return flows upstream from the site. Naturalized streamflow for January 1942 through December 1997, when Reservation and White Rock Dams were in place, was estimated by subtracting the naturalized streamflow for the Otter Tail River at the mouth from the naturalized streamflow for the Red River of the North at Wahpeton. Naturalized streamflow for January 1998 through December 2001 was estimated by adding the estimated historic streamflow for the Bois de Sioux River at the mouth to the naturalized streamflow for the Bois de Sioux River near White Rock, then subtracting the gaged and estimated historic streamflow for the Bois de Sioux River near White Rock, then adding the surface-water withdrawals between the Bois de Sioux River at the mouth and the Bois de Sioux River near White Rock, and then subtracting the return flows between the Bois de Sioux River at the mouth and the Bois de Sioux River near White Rock.

Naturalized streamflow for the Bois de Sioux River near 

White Rock for January 1931 through December 1997 was estimated by adding the difference between the naturalized streamflow and the estimated historic streamflow for the Bois de Sioux River at the mouth to the gaged and estimated historic 
Estimated Naturalized Monthly Streamflow 29

Reservoir storage was estimated using a monthly 

regression and inflow; lake evaporation and precipitation were obtained from Vining (2003); and reservoir water-surface areas 

for Lake Traverse and Mud Lake were obtained from areacapacity curves (U.S. Department of the Army, Corps of Engineers, 1983). Equation 7 was modified to include the 

effects of the dams and was rewritten as

Qn wr – Qh wr – Qw Qr Qd F = + + –------ (12)

where

Qn wr – is the estimated naturalized streamflow for the 

Bois de Sioux River near White Rock, in cubic feet per second;

Qh wr – is the gaged and estimated historic streamflow 

for the Bois de Sioux River near White Rock, in cubic feet per second;

Qw is the total of all surface-water withdrawals 

upstream from the Bois de Sioux River near White Rock, in cubic feet per second;

Qr is the total of all return flows upstream from 

the Bois de Sioux River near White Rock, in cubic feet per second;

Qd is the estimated streamflow that resulted from 

eliminating the effects of Reservation and 

The U.S. Army Corps of Engineers (Terry Zien, written 

commun., 2001) used the model, HEC-5 reservoir simulation computer program, to simulate streamflow for the Red River of the North at Wahpeton for January 1942 through December 1997 by eliminating the effects of Orwell Reservoir, Lake Traverse, and Mud Lake. Reservoir operation rules, elevationstorage-outflow relations, and routing parameters were input into the model. Daily streamflows were input using the HECDSS database program. Inflows to the reservoir were computed by reverse routing, using outflow and the change in storage in the pools. Local inflows between computation nodes were computed using gaged streamflow for the Red River of the North at Wahpeton. Routing parameters were determined by investigating the traveltimes of gaged floods. The reservoirs were eliminated by routing computed inflows directly to the site. Routing parameters were calibrated by comparing computed results to gaged streamflow for the Red River of the North at Wahpeton for the 1997 flood. 

Sheyenne River below Baldhill Dam, North Dakota

Naturalized streamflow for the Sheyenne River below 

Baldhill Dam was estimated for two time periods--for the period prior to completion of Baldhill Dam (January 1931 through July 1949) and for the period after completion of Baldhill Dam (August 1949 through December 2001). 
30 Historic and Naturalized Monthly Streamflow for Selected Sites in the Red River of the North Basin

the Army, Corps of Engineers, 1983). Equation 9 then was modified to include the effects of Lake Ashtabula and was rewritten as

Qn bh – Qh bh – Qn co – Qh co – ( ) –

+

Qw bh – Qr bh –

Qla

F

-------

= + +

– (14)

where

Qn bh – is the estimated naturalized streamflow for the 

Sheyenne River below Baldhill Dam, in cubic feet per second;

Qh bh – is the gaged and estimated historic streamflow 

for the Sheyenne River below Baldhill Dam, in cubic feet per second;

Qn co – is the estimated naturalized streamflow for the 

Sheyenne River near Cooperstown, in cubic feet per second;

Qh co – is the gaged and estimated historic streamflow 

for the Sheyenne River near Cooperstown, in cubic feet per second;

Qw bh – is the total of all surface-water withdrawals 

between the Sheyenne River below Baldhill Dam and the Sheyenne River near 

gaged historic monthly streamflow data for part of the datadevelopment period, and 21 had no gaged historic monthly streamflow data. To develop the database, the missing historic monthly streamflow data were estimated using a modified drainage-area ratio method, a maintenance of variance extension type 1 (MOVE.1) method, and a water-balance method.

The water-balance method was used to estimate the 

missing data for the Otter Tail River above Orwell Dam. Streamflow for the Otter Tail River below Orwell Dam near Fergus Falls, the change in storage in Orwell Reservoir, and the effects of evaporation and precipitation on the reservoir were used in the water-balance equation. The water-balance method 

also was used to estimate the missing data for the Otter Tail River at the mouth by subtracting historic streamflow for the Bois de Sioux River at the mouth from historic streamflow for the Red River of the North at Wahpeton.

Streamflow data that were estimated by the U.S. Army 

Corps of Engineers for the design of White Rock Dam were used to estimate the missing data for the Bois de Sioux River above White Rock Dam for part of the data-development period. The modified drainage-area ratio method was used to estimate the missing data for the remainder of the dataReferences 31

The modified drainage-area ratio method was used to 

estimate the missing data for the Goose River at the mouth, the Marsh River at the mouth, the Sand Hill River at the mouth, and the Red Lake River at the mouth.

Streamflow data for the Red River of the North at Grand 

Forks are available for April 1882 through December 2001.

The modified drainage-area ratio method was used to 

estimate the missing data for the Turtle River at the mouth, the Forest River at the mouth, the Snake River at the mouth, and the Park River at the mouth.

The MOVE.1 method was used to estimate the missing 

data for the Red River of the North at Drayton.

The modified drainage-area ratio method was used to 

estimate the missing data for the Pembina River at the mouth. 

Streamflow data for the Red River of the North at Emerson 

are available for May 1912 through December 2001.

Naturalized streamflow for the 35 sites was estimated by 

eliminating the hydrologic effects of Orwell Dam, Reservation Dam, White Rock Dam, Baldhill Dam, surface-water withdrawals, and return flows. Naturalized streamflow for 19 

adding the difference between the naturalized and the gaged and estimated historic streamflow for the tributary inflow between the site of interest and the site immediately upstream.

Naturalized streamflow for the Bois de Sioux River at the 

mouth was estimated for selected time periods by adding the 

estimated historic streamflow for the Bois de Sioux River at the mouth to the surface-water withdrawals for that site and then subtracting the return flows for the site, by subtracting the naturalized streamflow for the Otter Tail River at the mouth from the naturalized streamflow for the Red River of the North at Wahpeton, or by adding the estimated historic streamflow for the Bois de Sioux River at the mouth to the naturalized streamflow for the Bois de Sioux River near White Rock, subtracting the gaged and estimated historic streamflow for the Bois de Sioux River near White Rock, adding the surface-water withdrawals between the Bois de Sioux River at the mouth and the Bois de Sioux River near White Rock, and then subtracting the return flows between the Bois de Sioux River at the mouth and the Bois de Sioux River near White Rock.

Naturalized streamflow for the Red River of the North at 

Wahpeton was estimated for selected time periods by adding the gaged and estimated historic streamflow for the Red River of the North at Wahpeton to the surface-water withdrawals from the Otter Tail River and the Bois de Sioux River and then subtracting the return flows for the Otter Tail River and the Bois 
32 Historic and Naturalized Monthly Streamflow for Selected Sites in the Red River of the North Basin

Emerson, D.G., and Dressler, V.M., 2002, Historic and unregulated monthly streamflow for selected sites in the Red River 

of the North Basin in North Dakota, Minnesota, and South Dakota, 1931-99: U.S. Geological Survey Water-Resources Investigations Report 02-4095, 271 p.

Emerson, D.G., Vecchia, A.V., and Dahl, A.L., 2005, Evaluation of drainage-area ratio method used to estimate streamflow for the Red River of the North Basin, North Dakota and 

Minnesota: U.S. Geological Survey Scientific Investigations Report 2005-5017, 13 p.

Guenthner, R.S., Weigel, J.F., and Emerson, D.G., 1990, Gaged 

and estimated monthly streamflow during 1931-84 for selected sites in the Red River of the North Basin in North Dakota and Minnesota: U.S. Geological Survey WaterResources Investigations Report 90-4167, 230 p.

Guenthner, R.S., 1991, Methods for estimating monthly mean 

concentrations of selected water-quality constituents for stream sites in the Red River of the North Basin, North Dakota and Minnesota: U.S. Geological Survey WaterResources Investigations Report 91-4086, 113 p.

Hirsch, R.M., 1979, An evaluation of some record reconstruction techniques: Water Resources Research, v. 15, no. 6, 

p. 1781-1790.

Hirsch, R.M., 1982, A comparison of four streamflow record 

extension techniques: Water Resources Research

v

18

U.S. Department of the Army, Corps of Engineers, 1983, Red 

River of the North drainage basin water supply and flood control: St. Paul, Minn., Baldhill Dam and Lake Ashtabula 

Sheyenne River Reservoir Regulation Manual, St. Paul District, Corps of Engineers, 41 p.

U.S. Geological Survey, 1959, Compilation of records of surface waters of the United States through September 1950; 

Part 5, Hudson Bay and Upper Mississippi River Basin: U.S. Geological Survey Water-Supply Paper 1308, 708 p.

U.S. Geological Survey, 1964, Compilation of records of surface water of the United States, October 1950 to September 

1960; Part 5, Hudson Bay and Upper Mississippi River Basin: U.S. Geological Survey Water-Supply Paper 1728, 576 p.

U.S. Geological Survey, 1971, Surface-water supply of the 

United States, 1961-65; Part 5, Hudson Bay Basin, volume 1, Hudson Bay and Upper Mississippi Basin: U.S. Geological Survey Water-Supply Paper 1913, 407 p.

U.S. Geological Survey, 1971-02, Water resources data for 

North Dakota, water years 1970-2001: U.S. Geological Survey Water-Data Reports, ND-70-1 to ND-01-1.

U.S. Geological Survey, 1976, Surface-water supply of the 

U

it

d St

t

1966

70

P

t 5

H

d

B

B

i

l
Year January February March April May June July August September 

Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Otter Tail River above 

1931 30.00 65.00 131.80 140.80 159.50 104.40 62.60 32.30 44.40 

1932 40.00 45.00 60.00 81.70 50.60 50.30 32.70 27.20 31.40 

1933 23.00 25.00 170.00 51.30 37.80 61.80 19.10 14.70 25.80 

1934 27.40 26.20 25.80 39.50 18.00 14.20 13.80 11.50 7.99 

1935 16.00 10.80 58.80 51.50 51.80 63.50 102.60 22.80 13.90 

1936 26.50 24.90 32.50 65.00 41.10 21.90 12.80 19.70 21.60 

1937 15.10 15.70 23.50 60.90 58.00 178.20 96.90 72.70 125.00 

1938 20.40 36.10 100.80 144.00 272.20 267.20 79.00 24.90 47.70 

1939 117.40 118.90 228.20 207.00 180.70 83.30 46.40 18.50 17.00 

1940 17.70 32.00 44.70 166.50 308.90 137.00 28.50 19.40 22.30 

1941 58.60 105.20 163.50 277.10 302.70 210.50 99.00 39.00 51.50 

1942 123.50 97.50 133.10 120.10 383.40 426.80 207.80 164.60 230.70 

1943 306.20 240.90 310.10 595.30 656.10 776.30 534.10 432.50 396.70 

1944 199.10 157.80 196.90 309.30 362.00 616.00 470.70 350.30 581.30 

1945 411.60 369.30 527.80 649.70 735.30 640.90 312.30 158.60 142.90 

1946 194.20 146.40 360.10 513.70 569.00 368.40 621.30 610.60 511.40 

1947 415.30 341.80 343.20 703.60 900.30 871.80 560.40 238.10 207.30 

1948 157.40 129.90 247.50 480.60 647.20 443.80 254.20 213.10 190.40 

1949 90.30 107.60 200.60 220.60 224.00 213.90 225.10 178.30 93.50 

1950 109.60 143.00 218.00 428.50 869.50 883.70 666.90 325.70 162.40 

1951 143.60 199.90 260.50 607.60 635.00 661.50 463.50 332.10 321.70 

1952 478.70 484.40 488.70 787.40 822.60 563.80 426.00 446.80 463.40 

1953 169.30 212.00 334.00 421.00 558.30 1,262.00 1,246.00 628.93 601.03 

1954 304.70 292.47 444.17 620.38 852.15 906.72 521.38 264.55 257.57 

1955 127.55 152.02 230.79 473.24 396.04 337.94 480.90 447.27 504.71 

1956 177.26 180.86 210.89 636.70 813.43 649.21 291.53 221.28 117.14 

1957 73.60 73.58 222.30 421.79 627.14 592.00 549.08 505.57 487.60 

1958 227.23 241.01 354.91 381.48 236.42 216.26 354.19 257.52 258.69 

1959 165.96 182.38 282.33 303.35 329.66 513.06 412.98 281.55 214.40 

1960 203.84 218.86 228.82 510.17 769.02 648.09 403.71 222.72 183.49 

1961 144.26 132.54 194.85 281.43 334.70 373.44 202.68 228.30 107.77 

1962 58.36 111.90 207.11 433.45 668.76 1,024.54 908.10 639.05 542.43 

1963 185.02 174.28 270.72 443.31 441.87 584.99 353.78 246.18 243.04 

1964 129.61 143.47 185.36 473.16 767.19 514.42 299.23 219.99 229.11 

1965 168.69 144.57 178.01 689.57 939.14 1,129.03 764.89 472.05 440.86 
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Otter Tail River above Orwel

1966 415.27 332.49 750.84 1,033.80 1,332.41 994.74 564.09 592.05 476.28 

1967 360.56 337.50 464.10 779.36 1,039.04 960.90 639.46 337.50 202.99 

1968 88.65 135.54 250.83 396.33 593.78 578.15 464.96 328.48 246.37 

1969 224.67 349.55 445.93 874.01 1,075.11 813.78 461.93 270.22 119.57 

1970 147.30 166.87 219.59 391.83 674.94 714.28 475.16 213.32 97.90 

1971 120.38 148.87 247.47 452.60 344.74 299.85 412.72 225.95 244.17 

1972 501.06 463.78 683.58 771.35 1,098.82 1,024.57 666.16 572.23 494.13 

1973 334.64 338.32 493.97 438.33 372.77 288.21 230.81 183.98 208.71 

1974 468.41 439.70 464.72 606.47 1,013.93 1,174.62 672.03 430.40 325.51 

1975 169.70 245.09 389.01 737.46 1,008.93 1,074.94 836.37 552.24 413.63 

1976 216.63 283.67 406.20 514.42 325.37 198.50 133.58 27.84 21.44 

1977 12.73 16.33 66.45 103.93 72.48 71.21 60.87 57.30 111.25 

1978 355.75 318.20 510.04 752.59 769.01 491.22 407.76 233.46 158.16 

1979 71.61 109.51 260.30 749.96 939.90 936.22 776.97 698.18 547.74 

1980 321.19 360.22 476.10 642.19 472.36 336.95 174.55 127.48 112.37 

1981 95.40 135.55 179.08 217.67 168.77 144.12 122.94 205.88 136.45 

1982 184.61 245.53 411.11 617.04 739.01 715.37 532.03 368.78 249.61 

1983 248.08 260.05 338.21 371.50 318.81 257.44 365.18 409.64 404.96 

1984 245.40 325.64 498.51 580.44 573.43 669.48 426.11 250.05 149.35 

1985 243.60 256.22 439.39 606.31 928.08 1,255.11 1,108.93 1,033.21 894.32 

1986 573.88 533.55 708.40 1,033.95 1,457.55 1,355.77 896.57 608.94 698.08 

1987 590.53 543.37 637.26 669.02 523.65 447.59 283.18 224.05 180.89 

1988 161.50 165.86 296.49 348.39 354.00 212.36 94.14 60.38 66.60 

1989 102.62 142.42 277.18 706.07 623.61 567.44 309.77 136.78 162.71 

1990 129.89 154.82 324.21 439.26 517.56 531.14 390.79 236.83 166.26 

1991 98.93 153.64 251.84 381.64 690.67 717.89 672.34 438.69 332.97 

1992 202.24 249.09 366.16 442.34 441.43 374.44 351.49 299.02 259.62 

1993 223.69 280.82 414.11 624.40 684.27 959.09 1,031.99 958.13 1,021.14 

1994 556.19 636.82 721.37 828.79 997.33 716.83 567.51 412.51 286.34 

1995 406.26 413.90 631.82 862.10 892.87 624.82 508.69 319.75 261.28 

1996 365.84 396.27 500.65 771.93 1,163.95 1,013.29 587.60 345.88 220.74 

1997 503.77 460.32 519.63 1,349.75 1,365.30 1,062.38 848.05 722.46 575.34 

1998 515.05 581.55 699.15 822.36 791.08 742.89 1,111.69 840.58 552.98 

1999 735.92 743.99 789.51 1,082.22 1,257.00 1,189.85 871.20 707.58 762.07 

2000 459.11 490.72 694.06 841.30 795.89 791.01 824.43 607.97 428.71 

2001 686.31 605.23 631.49 1,145.04 1,436.47 1,405.86 1,012.01 628.29 467.57 

pp
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Otter Tail River at t

1931 33.63 72.88 149.09 159.27 183.45 120.07 72.00 37.15 51.07 

1932 44.85 50.45 67.87 92.42 58.20 57.85 37.61 31.28 36.11 

1933 25.79 28.03 192.30 58.03 43.48 71.08 21.97 16.91 29.67 

1934 30.72 29.37 29.18 44.68 20.70 16.33 15.87 13.23 9.19 

1935 17.94 12.11 66.51 58.26 59.58 73.03 118.00 26.22 15.99 

1936 29.71 27.92 36.76 73.57 47.27 25.19 14.72 22.66 24.84 

1937 16.93 17.60 26.58 69.46 67.44 204.95 111.45 83.61 143.77 

1938 22.87 40.47 114.02 162.89 313.07 307.32 90.86 28.64 54.86 

1939 131.62 133.31 259.85 235.94 207.86 95.86 53.39 21.28 19.55 

1940 19.84 35.88 50.56 188.34 355.28 157.57 32.78 22.31 25.65 

1941 65.70 117.95 185.01 313.62 348.17 243.02 114.14 44.98 59.52 

1942 138.46 109.31 151.03 137.43 550.01 582.71 229.76 171.15 229.54 

1943 343.30 270.09 320.19 913.01 685.05 884.29 600.22 464.79 397.23 

1944 196.00 152.00 191.71 367.51 461.23 832.88 687.34 366.33 589.73 

1945 405.30 370.73 683.19 673.48 748.68 654.41 299.13 142.99 139.55 

1946 189.70 127.50 455.78 529.06 571.38 349.40 633.64 603.73 498.98 

1947 411.50 342.33 373.37 933.70 929.91 911.80 575.60 222.66 205.92 

1948 148.69 115.20 241.27 577.31 648.43 447.54 251.10 209.98 164.20 

1949 69.80 85.70 205.44 259.66 215.88 215.65 321.39 181.68 90.59 

1950 87.90 132.40 267.26 623.95 1,020.13 883.52 699.04 330.54 168.96 

1951 144.75 146.88 237.72 918.79 670.11 677.08 476.63 334.15 322.79 

1952 484.27 492.78 413.40 1,252.41 833.91 573.90 439.18 401.88 443.14 

1953 166.50 192.70 375.07 445.65 585.51 1,338.80 1,254.98 763.62 516.31 

1954 376.80 320.40 499.02 626.71 847.04 931.95 525.42 191.34 229.76 

1955 233.49 186.40 244.92 438.29 328.54 303.09 472.02 441.71 447.38 

1956 238.18 198.73 240.43 684.52 808.00 662.13 240.49 208.33 111.38 

1957 106.00 113.04 312.68 475.34 647.83 625.44 595.49 500.09 436.18 

1958 286.21 272.49 410.15 392.93 218.20 140.66 337.24 226.25 178.61 

1959 243.48 236.03 294.34 331.75 341.79 525.37 448.42 209.57 162.20 

1960 233.50 249.00 257.76 571.98 787.64 708.28 430.54 173.44 111.60 

1961 155.60 170.98 249.15 282.21 354.21 388.93 187.99 78.86 77.14 

1962 82.43 95.54 237.77 535.85 714.82 1,222.37 1,111.27 793.88 452.34 

1963 291.25 203.26 305.74 462.05 448.46 660.38 369.72 142.39 155.65 

1964 150.55 156.69 157.31 517.20 819.61 567.70 286.47 78.63 123.80 

1965 197.90 178.22 216.33 740.69 982.13 1,218.04 772.58 405.70 402.42 

Year January February March April May June July August September 
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Otter Tail River at the mo

1966 487.00 423.43 822.50 1,060.94 1,289.24 1,169.02 576.68 520.23 349.25 

1967 391.10 363.40 458.83 896.27 1,060.72 929.68 717.47 226.44 114.15 

1968 136.68 141.70 274.50 399.55 563.01 576.22 427.41 226.94 161.36 

1969 219.44 380.26 475.48 1,260.80 1,146.24 917.29 421.40 201.47 60.66 

1970 158.20 179.20 234.24 435.61 695.52 737.21 444.74 112.10 26.40 

1971 130.60 132.80 297.67 476.80 345.29 290.78 371.63 153.83 165.46 

1972 570.47 473.54 661.01 917.77 1,040.41 1,194.68 717.75 497.75 426.80 

1973 347.68 356.38 547.37 441.45 367.21 278.20 151.16 121.62 114.25 

1974 445.50 468.04 495.96 622.28 986.30 1,111.23 672.72 339.79 247.25 

1975 187.80 249.80 341.80 772.16 976.48 1,061.04 983.82 573.30 362.53 

1976 246.30 313.06 500.55 534.60 319.47 158.08 109.40 53.50 1.95 

1977 8.81 18.00 41.62 65.81 15.90 62.70 61.07 51.08 132.78 

1978 394.60 328.60 598.57 1,182.72 848.78 555.90 548.40 144.41 93.93 

1979 99.36 102.80 301.99 1,148.00 987.07 950.58 824.48 706.22 560.20 

1980 366.08 395.63 530.58 628.60 513.49 374.75 168.66 107.66 33.33 

1981 101.65 136.74 211.63 209.31 172.97 140.88 150.23 168.56 52.00 

1982 231.40 253.30 448.82 692.86 757.40 721.57 513.98 281.67 173.57 

1983 290.85 276.35 394.89 386.84 322.27 212.44 298.09 351.40 345.80 

1984 265.70 346.34 541.52 741.98 632.65 836.90 494.45 248.87 128.30 

1985 267.73 279.59 581.81 596.01 943.83 1,142.90 1,125.43 1,081.19 907.49 

1986 618.44 564.51 782.63 1,300.79 1,551.52 1,415.54 896.19 615.55 835.54 

1987 574.67 608.78 711.53 615.10 529.00 472.70 331.39 170.98 177.25 

1988 151.49 236.92 363.80 354.95 360.06 206.09 77.41 80.39 70.50 

1989 71.80 159.10 393.73 1,079.05 604.27 603.27 306.79 139.22 163.85 

1990 120.32 161.68 411.17 415.07 506.02 525.75 387.12 234.10 156.60 

1991 81.82 97.05 261.20 399.49 678.84 674.61 583.27 432.90 373.06 

1992 178.01 223.10 464.24 448.15 417.72 383.58 355.85 315.95 277.30 

1993 183.96 235.47 542.33 821.16 713.02 1,059.78 1,201.84 1,022.60 938.16 

1994 552.95 566.24 1,340.40 969.61 1,066.60 784.68 600.42 439.29 282.81 

1995 377.88 431.24 800.04 1,042.54 960.29 729.94 628.78 313.93 265.01 

1996 450.48 453.38 918.96 1,029.10 1,118.00 1,092.76 585.64 344.85 209.43 

1997 447.48 567.59 598.34 2,338.04 1,437.56 1,095.76 944.52 748.14 572.14 

1998 414.50 676.35 645.83 893.33 917.45 702.57 1,159.24 903.98 531.80 

1999 622.66 630.83 864.84 1,142.68 1,192.24 1,347.44 1,096.88 678.78 827.11 

2000 410.47 476.32 872.68 827.24 857.36 939.85 847.08 625.21 428.46 

2001 655.86 603.98 779.24 1,204.24 1,134.52 1,519.04 1,146.88 594.00 462.55 

pp
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Bois de Sioux River above W

1931 0.00 0.00 2.93 1.76 0.81 4.62 1.79 2.60 5.54 

1932 0.00 0.00 6.99 33.77 3.58 1.18 0.00 0.00 0.00 

1933 0.00 0.72 18.70 7.22 5.53 3.02 0.00 0.00 0.00 

1934 0.00 0.00 0.00 2.69 0.16 0.00 0.00 0.00 0.00 

1935 0.00 1.26 55.77 7.22 13.82 18.14 20.97 0.65 0.00 

1936 0.00 0.00 55.68 23.66 4.94 0.30 0.00 0.00 0.00 

1937 0.00 0.00 83.18 222.52 28.34 5.63 16.26 1.25 0.00 

1938 0.00 55.22 100.25 12.44 25.80 51.90 65.70 0.00 0.00 

1939 0.00 0.00 407.55 29.72 2.99 5.07 2.36 0.18 0.00 

1940 0.00 0.00 21.83 130.96 13.53 0.08 0.00 0.00 0.00 

1941 0.00 0.00 109.90 72.61 5.24 54.26 0.68 22.64 68.70 

1942 0.00 0.00 10.15 32.68 799.52 733.71 35.99 18.90 54.05 

1943 0.00 0.00 58.06 1,003.27 113.84 372.46 123.92 62.03 17.22 

1944 0.00 0.00 7.24 61.17 189.03 700.11 84.57 10.00 6.05 

1945 0.00 0.00 260.61 103.70 33.61 73.65 5.57 0.88 0.00 

1946 0.00 0.00 587.38 170.14 21.14 4.87 88.77 3.09 2.60 

1947 0.13 0.37 144.48 1,320.59 260.44 148.42 24.36 0.78 0.00 

1948 0.00 0.00 338.92 781.82 74.49 17.22 25.34 5.21 0.27 

1949 0.00 0.00 98.17 59.82 3.99 9.55 602.09 22.40 2.10 

1950 0.00 0.00 92.50 672.45 659.50 104.18 358.45 20.72 1.46 

1951 0.01 0.52 0.09 908.75 163.82 115.80 61.19 7.35 2.74 

1952 2.69 1.68 1.86 2,385.97 315.05 70.43 96.61 11.16 6.55 

1953 0.98 1.09 207.95 98.71 58.95 129.94 49.99 1.88 0.00 

1954 0.00 0.00 23.09 58.87 36.83 127.56 12.83 8.21 8.02 

1955 0.05 0.00 22.55 82.37 4.89 25.62 96.19 5.21 0.80 

1956 0.00 0.00 0.08 193.09 99.00 56.29 9.55 105.44 6.30 

1957 0.13 0.00 45.50 228.20 138.34 309.45 48.31 28.56 35.01 

1958 0.97 14.56 140.43 167.44 29.40 10.08 5.61 2.17 3.08 

1959 0.19 1.03 13.17 4.15 2.44 588.52 4.77 14.66 8.14 

1960 3.22 1.47 22.35 205.14 54.51 59.37 3.50 0.11 5.52 

1961 0.21 2.99 22.98 5.50 9.41 9.76 1.15 1.13 0.81 

1962 0.04 0.99 0.68 750.68 872.68 948.70 1,793.35 340.91 18.76 

1963 0.21 2.77 45.96 76.60 39.58 949.99 22.95 2.55 0.15 

1964 0.19 1.88 17.99 142.90 97.09 53.03 16.98 1.65 0.84 

1965 0.16 3.28 0.86 864.57 100.45 260.87 86.16 25.71 4.34 

Year January February March April May June July August September 
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Bois de Sioux River above White 

1966 1.60 0.29 889.46 353.57 113.57 41.21 65.05 202.11 25.71 

1967 2.16 1.52 203.10 342.62 217.47 416.20 255.33 32.49 0.73 

1968 0.48 0.04 21.08 48.11 52.14 43.46 6.27 2.38 3.51 

1969 0.66 0.42 0.42 4,426.64 401.78 14.86 66.66 34.66 1.53 

1970 1.96 2.41 19.80 130.98 51.93 230.29 46.47 0.10 0.29 

1971 0.07 2.91 110.40 31.65 10.67 12.81 79.67 0.64 9.34 

1972 3.23 1.36 542.75 290.88 584.07 68.20 55.84 18.31 0.49 

1973 2.28 1.64 106.94 18.62 9.51 4.69 11.24 0.01 0.15 

1974 0.42 0.30 69.03 143.55 62.73 131.27 0.14 0.06 2.59 

1975 0.34 4.13 0.27 980.30 151.56 2,585.83 1,161.80 44.64 3.67 

1976 3.34 204.91 260.23 170.97 24.91 2.00 0.04 0.85 0.03 

1977 0.03 0.24 8.52 15.12 4.45 4.90 3.81 0.20 12.76 

1978 3.95 7.43 611.76 1,257.64 157.64 13.71 236.24 50.58 29.98 

1979 0.82 0.87 0.77 2,605.36 414.34 55.50 70.08 48.85 2.79 

1980 2.00 1.52 122.98 292.65 23.68 4.10 1.15 4.10 0.35 

1981 0.52 12.63 10.76 10.29 2.42 7.91 9.09 1.46 0.00 

1982 0.09 0.79 51.99 384.71 24.18 11.19 30.19 1.30 0.97 

1983 1.03 1.28 112.24 28.52 5.39 21.10 20.09 1.06 8.51 

1984 0.07 371.11 586.16 524.56 65.33 1,253.76 4.48 1.33 0.00 

1985 2.01 1.35 209.19 22.90 19.91 1,539.59 10.38 0.07 4.13 

1986 2.25 2.85 435.19 1,071.08 814.63 742.98 24.83 17.77 170.62 

1987 7.64 30.58 170.46 105.01 41.07 15.78 9.03 0.28 0.01 

1988 0.54 13.97 31.22 7.97 1.13 3.07 4.84 1.39 0.63 

1989 0.38 1.91 4.17 2,417.40 71.55 11.40 2.51 1.30 0.39 

1990 0.36 0.56 9.56 10.29 7.03 69.14 0.03 1.41 0.38 

1991 0.12 0.86 8.60 1.54 26.14 45.62 75.74 5.17 11.05 

1992 0.08 1.09 33.42 35.90 21.94 122.81 113.75 28.87 2.65 

1993 0.73 7.16 255.07 910.52 121.71 254.00 922.25 480.87 107.63 

1994 15.65 56.66 618.26 877.20 269.54 50.25 761.90 44.53 13.99 

1995 8.10 34.71 1,168.96 845.26 474.41 21.62 666.22 69.11 23.17 

1996 6.69 8.58 288.17 1,127.21 1,160.15 191.26 54.87 12.31 0.52 

1997 1.27 1.23 1.27 8,588.82 902.62 424.24 191.52 78.61 46.04 

1998 11.64 210.66 653.89 1,100.07 1,548.14 1,980.46 1,146.97 254.19 104.68 

1999 75.22 549.97 656.59 599.64 475.64 321.25 162.17 167.59 456.04 

2000 28.03 805.40 411.69 238.41 233.09 196.63 303.44 53.38 3.96 

2001 1.46 2.61 2.71 4,300.83 619.80 918.06 117.86 20.42 3.05 

pp
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Bois de Sioux River a

1931 7.02 15.22 33.41 35.70 46.28 30.29 18.16 9.37 12.88 

1932 9.37 10.54 15.21 20.71 14.68 14.59 9.49 7.89 9.11 

1933 5.39 5.85 43.10 13.01 10.97 17.93 5.54 4.27 7.49 

1934 6.42 6.13 6.54 10.01 5.22 4.12 4.00 3.34 2.32 

1935 3.75 2.53 14.91 13.06 15.03 18.42 29.77 6.62 4.03 

1936 6.20 5.83 8.24 16.87 11.92 6.35 3.71 5.72 6.27 

1937 3.54 3.68 5.96 20.87 23.15 51.70 28.11 21.09 36.27 

1938 4.78 8.45 25.55 36.51 78.97 77.52 22.92 7.22 13.84 

1939 27.49 27.84 74.27 69.53 52.66 24.59 13.66 5.37 4.93 

1940 4.14 7.49 11.33 42.21 89.62 39.75 8.27 5.63 6.47 

1941 13.72 24.63 42.08 71.88 88.04 68.97 31.08 12.40 17.39 

1942 28.92 22.83 38.19 45.49 470.99 695.29 704.44 220.65 246.76 

1943 71.69 56.41 91.81 1,238.99 983.95 933.71 468.78 97.21 5.77 

1944 0.00 0.00 3.29 273.49 499.77 1,124.12 692.66 52.67 25.27 

1945 0.00 5.07 566.81 459.52 88.82 261.89 5.87 3.21 1.15 

1946 0.00 0.00 367.32 584.94 33.12 13.10 82.46 4.17 2.32 

1947 1.70 2.67 113.13 1,087.30 697.09 575.20 507.40 9.04 1.08 

1948 0.01 0.00 14.83 701.69 754.57 97.76 4.40 7.12 15.00 

1949 0.00 0.00 36.86 146.74 2.02 9.05 406.31 16.52 1.51 

1950 0.00 0.00 179.24 716.05 551.87 574.48 826.96 344.96 42.64 

1951 10.45 1.02 3.88 1,289.21 944.89 385.92 116.17 36.75 8.81 

1952 40.23 42.42 55.00 1,908.59 1,042.09 980.10 307.02 7.52 0.36 

1953 0.00 0.00 174.53 97.25 170.49 330.20 92.02 92.68 48.59 

1954 0.00 29.80 62.88 50.29 4.66 109.05 15.18 9.26 5.04 

1955 12.01 0.00 21.58 104.81 1.66 2.81 37.68 3.69 0.72 

1956 9.52 16.77 19.27 162.78 4.00 37.27 0.31 64.47 7.32 

1957 0.00 0.86 135.52 196.76 283.07 441.56 195.01 21.51 25.42 

1958 30.29 12.91 74.35 263.17 41.50 0.84 25.46 1.45 0.79 

1959 16.22 8.97 21.16 38.35 84.01 38.63 65.88 4.23 0.00 

1960 0.00 0.00 85.74 329.62 81.46 88.62 36.06 7.36 0.00 

1961 0.00 9.52 50.85 8.59 34.79 36.77 2.11 0.05 1.86 

1962 1.87 6.86 13.53 492.15 1,214.18 1,452.63 1,644.73 1,189.12 294.06 

1963 21.05 29.64 91.86 145.45 60.94 930.62 111.18 14.71 3.55 

1964 0.46 4.81 25.09 259.30 159.29 32.60 5.73 0.87 1.30 

1965 0.00 6.08 9.67 1,048.31 507.87 1,307.96 457.42 9.30 19.88 

Year January February March April May June July August September 
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Bois de Sioux River at the m

1966 13.00 20.47 828.50 431.06 786.76 501.98 51.82 2.47 1.15 

1967 0.00 0.00 200.67 491.73 178.28 252.32 165.03 0.77 0.45 

1968 0.62 0.00 34.40 15.25 7.59 7.88 0.69 0.06 0.04 

1969 0.06 21.84 50.62 3,175.20 1,459.76 399.71 49.30 3.33 3.74 

1970 0.00 0.00 20.16 193.49 60.38 78.69 15.06 0.00 0.00 

1971 0.00 0.00 126.73 70.40 23.21 51.52 94.27 11.97 2.44 

1972 25.23 1.46 633.99 816.23 500.59 352.32 115.75 126.25 24.50 

1973 4.02 3.12 244.03 106.35 3.19 23.20 0.04 0.28 0.05 

1974 0.00 24.26 53.04 57.32 17.70 3.77 23.58 9.51 0.15 

1975 0.00 0.00 0.00 485.84 254.52 221.96 803.18 12.00 0.47 

1976 0.00 47.24 461.05 190.90 10.13 0.02 0.00 0.00 0.23 

1977 0.00 0.00 42.68 72.19 6.60 27.30 4.53 2.42 16.32 

1978 0.00 0.00 761.43 1,929.28 849.22 650.10 933.60 133.39 11.07 

1979 4.74 0.00 22.51 2,097.00 989.93 812.42 398.52 118.88 40.70 

1980 38.72 22.27 188.82 307.30 54.91 162.35 19.74 19.04 1.47 

1981 1.95 16.26 15.37 1.99 10.93 67.32 36.57 57.04 0.00 

1982 0.00 0.00 153.58 486.14 131.40 9.83 42.92 17.83 5.93 

1983 36.25 48.75 146.51 47.36 1.93 0.36 36.91 0.00 0.00 

1984 0.00 3.86 617.48 1,021.02 351.35 1,132.10 374.25 109.03 9.60 

1985 0.67 31.71 611.19 358.49 355.17 619.10 31.57 22.81 31.41 

1986 59.26 98.69 896.37 1,606.21 1,533.48 1,069.46 767.81 167.25 598.46 

1987 38.93 78.32 246.97 110.00 55.50 19.90 33.51 17.22 9.85 

1988 0.31 20.98 165.00 68.45 16.04 15.31 8.19 7.41 0.00 

1989 0.00 0.00 184.37 1,923.95 505.73 125.03 11.11 12.78 55.45 

1990 3.78 6.22 70.83 7.53 7.18 2.55 5.08 0.00 0.00 

1991 0.08 0.15 69.70 60.31 73.16 350.39 913.73 99.20 429.14 

1992 1.69 4.10 112.66 45.25 6.98 67.22 45.55 115.55 7.30 

1993 2.24 3.53 379.77 1,264.84 381.98 526.22 1,585.16 1,473.40 1,209.84 

1994 5.75 7.86 626.60 1,639.39 1,299.40 558.32 1,043.58 202.01 9.49 

1995 5.22 12.86 1,828.96 1,576.46 1,458.71 792.06 226.42 4.37 4.99 

1996 44.12 47.22 974.04 1,710.90 1,260.00 283.24 9.36 1.65 0.37 

1997 15.12 153.61 343.56 6,378.96 1,906.44 681.24 99.48 17.16 9.76 

1998 2.00 191.85 672.17 417.67 394.55 428.43 404.76 10.02 13.30 

1999 5.44 6.67 462.16 207.32 245.76 727.56 183.12 471.22 246.89 

2000 2.53 29.68 471.32 85.76 171.64 33.15 256.92 8.79 4.54 

2001 0.14 0.02 418.76 4,520.76 1,803.48 1,461.96 1,156.12 128.00 3.45 

pp
Gaged (May through October 1942 and March 1943 through December 2001) and estimated (January 1931 through April 1942 and 

through February 1943) historic streamflow, in cubic feet per second, for the Red River of the North at Wahpeton, N. D

1931 40.66 88.09 182.50 194.97 229.72 150.36 90.16 46.52 63.95 

1932 54.21 60.99 83.08 113.13 72.88 72.45 47.10 39.18 45.22 

1933 31.17 33.88 235.40 71.04 54.44 89.01 27.51 21.17 37.16 

1934 37.14 35.51 35.73 54.70 25.92 20.45 19.88 16.56 11.51 

1935 21.68 14.64 81.42 71.31 74.61 91.46 147.77 32.84 20.02 

1936 35.92 33.75 45.00 90.43 59.20 31.54 18.44 28.37 31.11 

1937 20.47 21.28 32.54 90.32 90.59 256.66 139.56 104.71 180.03 

1938 27.65 48.93 139.58 199.40 392.04 384.84 113.78 35.86 68.70 

1939 159.11 161.15 334.13 305.46 260.52 120.45 67.04 26.65 24.48 

1940 23.99 43.37 61.90 230.55 444.90 197.32 41.05 27.94 32.12 

1941 79.42 142.58 227.09 385.50 436.21 311.99 145.22 57.38 76.91 

1942 167.38 132.14 189.22 182.92 1,021.00 1,278.00 934.20 391.80 476.30 

1943 414.99 326.49 412.00 2,152.00 1,669.00 1,818.00 1,069.00 562.00 403.00 

1944 196.00 152.00 195.00 641.00 961.00 1,957.00 1,380.00 419.00 615.00 

1945 405.30 375.80 1,250.00 1,133.00 837.50 916.30 305.00 146.20 140.70 

1946 189.70 127.50 823.10 1,114.00 604.50 362.50 716.10 607.90 501.30 

1947 413.20 345.00 486.50 2,021.00 1,627.00 1,487.00 1,083.00 231.70 207.00 

1948 148.70 115.20 256.10 1,279.00 1,403.00 545.30 255.50 217.10 179.20 

1949 69.80 85.70 242.30 406.40 217.90 224.70 727.70 198.20 92.10 

1950 87.90 132.40 446.50 1,340.00 1,572.00 1,458.00 1,526.00 675.50 211.60 

1951 155.20 147.90 241.60 2,208.00 1,615.00 1,063.00 592.80 370.90 331.60 

1952 524.50 535.20 468.40 3,161.00 1,876.00 1,554.00 746.20 409.40 443.50 

1953 166.50 192.70 549.60 542.90 756.00 1,669.00 1,347.00 856.30 564.90 

1954 376.80 350.20 561.90 677.00 851.70 1,041.00 540.60 200.60 234.80 

1955 245.50 186.40 266.50 543.10 330.20 305.90 509.70 445.40 448.10 

1956 247.70 215.50 259.70 847.30 812.00 699.40 240.80 272.80 118.70 

1957 106.00 113.90 448.20 672.10 930.90 1,067.00 790.50 521.60 461.60 

1958 316.50 285.40 484.50 656.10 259.70 141.50 362.70 227.70 179.40 

1959 259.70 245.00 315.50 370.10 425.80 564.00 514.30 213.80 162.20 

1960 233.50 249.00 343.50 901.60 869.10 796.90 466.60 180.80 111.60 

1961 155.60 180.50 300.00 290.80 389.00 425.70 190.10 78.90 79.00 

1962 84.30 102.40 251.30 1,028.00 1,929.00 2,675.00 2,756.00 1,983.00 746.40 

1963 312.30 232.90 397.60 607.50 509.40 1,591.00 480.90 157.10 159.20 

1964 151.00 161.50 182.40 776.50 978.90 600.30 292.20 79.50 125.10 

1965 197.90 184.30 226.00 1,789.00 1,490.00 2,526.00 1,230.00 415.00 422.30 

Year January February March April May June July August September 
Gaged (May through October 1942 and March 1943 through December 2001) and estimated (January 1931 through April 1942 and 

through February 1943) historic streamflow, in cubic feet per second, for the Red River of the North at Wahpeton, N. Dak.—

1966 500.00 443.90 1,651.00 1,492.00 2,076.00 1,671.00 628.50 522.70 350.40 

1967 391.10 363.40 659.50 1,388.00 1,239.00 1,182.00 882.50 227.20 114.60 

1968 137.30 141.70 308.90 414.80 570.60 584.10 428.10 227.00 161.40 

1969 219.50 402.10 526.10 4,436.00 2,606.00 1,317.00 470.70 204.80 64.40 

1970 158.20 179.20 254.40 629.10 755.90 815.90 459.80 112.10 26.40 

1971 130.60 132.80 424.40 547.20 368.50 342.30 465.90 165.80 167.90 

1972 595.70 475.00 1,295.00 1,734.00 1,541.00 1,547.00 833.50 624.00 451.30 

1973 351.70 359.50 791.40 547.80 370.40 301.40 151.20 121.90 114.30 

1974 445.50 492.30 549.00 679.60 1,004.00 1,115.00 696.30 349.30 247.40 

1975 187.80 249.80 341.80 1,258.00 1,231.00 1,283.00 1,787.00 585.30 363.00 

1976 246.30 360.30 961.60 725.50 329.60 158.10 109.40 53.50 2.18 

1977 8.81 18.00 84.30 138.00 22.50 90.00 65.60 53.50 149.10 

1978 394.60 328.60 1,360.00 3,112.00 1,698.00 1,206.00 1,482.00 277.80 105.00 

1979 104.10 102.80 324.50 3,245.00 1,977.00 1,763.00 1,223.00 825.10 600.90 

1980 404.80 417.90 719.40 935.90 568.40 537.10 188.40 126.70 34.80 

1981 103.60 153.00 227.00 211.30 183.90 208.20 186.80 225.60 52.00 

1982 231.40 253.30 602.40 1,179.00 888.80 731.40 556.90 299.50 179.50 

1983 327.10 325.10 541.40 434.20 324.20 212.80 335.00 351.40 345.80 

1984 265.70 350.20 1,159.00 1,763.00 984.00 1,969.00 868.70 357.90 137.90 

1985 268.40 311.30 1,193.00 954.50 1,299.00 1,762.00 1,157.00 1,104.00 938.90 

1986 677.70 663.20 1,679.00 2,907.00 3,085.00 2,485.00 1,664.00 782.80 1,434.00 

1987 613.60 687.10 958.50 725.10 584.50 492.60 364.90 188.20 187.10 

1988 151.80 257.90 528.80 423.40 376.10 221.40 85.60 87.80 70.50 

1989 71.80 159.10 578.10 3,003.00 1,110.00 728.30 317.90 152.00 219.30 

1990 124.10 167.90 482.00 422.60 513.20 528.30 392.20 234.10 156.60 

1991 81.90 97.20 330.90 459.80 752.00 1,025.00 1,497.00 532.10 802.20 

1992 179.70 227.20 576.90 493.40 424.70 450.80 401.40 431.50 284.60 

1993 186.20 239.00 922.10 2,086.00 1,095.00 1,586.00 2,787.00 2,496.00 2,148.00 

1994 558.70 574.10 1,967.00 2,609.00 2,366.00 1,343.00 1,644.00 641.30 292.30 

1995 383.10 444.10 2,629.00 2,619.00 2,419.00 1,522.00 855.20 318.30 270.00 

1996 494.60 500.60 1,893.00 2,740.00 2,378.00 1,376.00 595.00 346.50 209.80 

1997 462.60 721.20 941.90 8,717.00 3,344.00 1,777.00 1,044.00 765.30 581.90 

1998 416.50 868.20 1,318.00 1,311.00 1,312.00 1,131.00 1,564.00 914.00 545.10 

1999 628.10 637.50 1,327.00 1,350.00 1,438.00 2,075.00 1,280.00 1,150.00 1,074.00 

2000 413.00 506.00 1,344.00 913.00 1,029.00 973.00 1,104.00 634.00 433.00 

2001 656.00 604.00 1,198.00 5,725.00 2,938.00 2,981.00 2,303.00 722.00 466.00 

pp
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Wild Rice River (N. Dak

1931 0.01 0.31 1.74 9.33 5.41 2.70 0.26 0.01 0.08 

1932 0.08 0.02 1.95 14.82 6.49 3.65 0.79 0.00 0.00 

1933 0.00 0.47 36.72 16.26 8.37 2.04 0.00 0.00 0.00 

1934 0.00 0.00 0.35 4.10 0.12 1.51 0.40 0.00 0.00 

1935 0.00 0.00 168.88 22.12 14.22 47.24 22.39 5.60 1.12 

1936 0.00 0.00 88.92 61.49 14.55 0.40 0.00 0.00 0.00 

1937 0.00 0.00 0.00 129.95 95.27 23.40 20.15 4.35 2.24 

1938 0.00 0.00 95.22 13.93 37.28 10.44 0.40 0.00 0.00 

1939 0.00 0.00 246.62 50.65 3.59 26.20 26.20 2.07 0.00 

1940 0.00 0.00 0.00 79.18 21.72 2.68 0.00 0.00 0.00 

1941 0.00 0.00 87.48 70.23 21.16 87.32 13.66 5.04 11.15 

1942 0.08 0.00 16.59 73.43 169.49 335.39 84.97 50.49 112.06 

1943 7.35 2.01 257.24 1,954.18 195.01 791.36 395.73 57.65 25.30 

1944 0.56 0.41 22.89 163.68 188.74 272.48 518.88 150.35 96.39 

1945 0.98 1.37 1,112.57 456.20 145.98 176.21 17.69 4.69 2.45 

1946 0.00 0.00 594.44 224.06 30.23 9.19 34.26 2.83 0.13 

1947 1.06 0.27 58.39 792.84 177.32 83.40 24.74 0.68 0.00 

1948 0.00 0.00 4.18 240.21 21.94 7.04 6.25 8.02 0.07 

1949 0.00 0.00 36.05 166.22 27.99 7.98 106.35 14.89 0.00 

1950 0.00 0.00 195.31 899.01 664.74 64.37 8.56 1.94 0.00 

1951 0.00 0.00 16.15 645.31 45.90 30.34 22.17 0.51 1.07 

1952 1.31 0.77 0.55 2,601.15 312.45 25.08 32.91 5.24 0.42 

1953 0.80 1.09 105.51 43.91 305.06 360.14 53.18 7.00 0.22 

1954 0.05 0.30 48.88 45.79 35.60 74.00 54.29 0.53 1.72 

1955 0.21 0.03 25.55 117.67 3.73 1.44 2.16 18.92 0.02 

1956 0.00 0.00 0.00 216.43 40.08 3.29 0.00 4.03 0.00 

1957 0.00 0.00 50.87 105.84 64.93 90.45 53.18 24.18 89.33 

1958 3.03 3.58 41.47 176.51 82.95 18.02 28.88 0.09 0.03 

1959 0.00 0.00 13.16 7.41 3.28 25.97 4.53 0.00 0.00 

1960 0.00 0.00 22.67 228.71 60.45 5.68 3.29 0.10 0.00 

1961 0.00 0.00 23.34 9.49 11.64 1.15 0.00 0.00 0.00 

1962 0.00 0.00 0.00 715.32 814.75 1,039.99 2,000.50 363.38 18.47 

1963 0.19 0.00 47.56 96.22 44.78 507.57 22.73 2.37 0.13 

1964 0.00 0.00 18.14 166.44 103.89 32.02 16.68 1.52 0.75 

1965 0.00 0.00 0.00 809.87 107.25 122.58 88.44 25.52 4.11 

Year January February March April May June July August September 
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Wild Rice River (N. Dak.) at th

1966 1.54 0.25 998.10 369.05 120.34 71.20 66.27 212.36 25.52 

1967 2.08 0.81 218.86 358.99 221.32 538.47 270.02 32.46 0.65 

1968 0.45 0.05 21.34 63.92 57.99 29.11 5.99 2.22 3.30 

1969 0.61 0.33 0.38 3,402.95 393.61 85.53 67.95 34.70 1.40 

1970 1.88 1.13 20.02 154.17 57.76 198.93 46.91 0.08 0.00 

1971 0.00 0.00 117.01 44.24 13.10 19.37 81.61 0.58 9.02 

1972 3.15 0.75 600.85 310.88 559.07 163.67 56.65 18.02 0.43 

1973 2.20 0.86 113.25 27.76 11.75 9.83 10.91 0.01 0.13 

1974 0.39 0.26 72.22 167.11 68.96 19.81 0.12 0.05 0.00 

1975 0.00 0.00 0.24 904.43 157.73 423.27 1,280.68 45.00 3.45 

1976 3.25 27.03 282.34 194.87 28.99 0.81 0.04 0.00 0.00 

1977 0.00 0.00 8.42 23.11 5.77 3.73 3.59 0.17 12.43 

1978 3.87 2.53 679.48 1,125.84 163.67 44.56 249.31 51.16 29.89 

1979 0.77 0.55 0.71 2,135.55 405.14 46.79 71.53 49.37 2.60 

1980 1.92 0.81 130.72 312.54 27.65 62.13 1.05 3.87 0.30 

1981 0.48 3.69 10.69 16.48 3.26 10.31 8.77 1.33 0.00 

1982 0.00 0.00 53.97 397.47 28.21 2.68 30.11 1.20 0.00 

1983 0.98 0.72 119.00 40.37 6.91 0.10 19.81 0.97 8.21 

1984 0.06 41.31 650.29 522.00 71.65 141.05 4.24 1.22 0.00 

1985 1.93 0.75 225.61 33.29 23.51 222.44 10.05 0.06 3.91 

1986 2.18 1.27 478.87 977.64 763.82 75.68 24.63 17.46 178.44 

1987 7.62 6.94 182.81 126.96 46.35 12.87 8.71 0.25 0.01 

1988 0.00 0.00 31.96 13.16 1.60 0.10 4.59 1.28 0.00 

1989 0.00 0.00 4.05 1,999.52 78.03 41.87 2.34 1.20 0.34 

1990 0.00 0.00 9.48 16.48 8.86 1.01 0.03 0.00 0.00 

1991 0.00 0.00 8.50 3.11 30.34 14.22 77.47 4.91 10.71 

1992 0.07 0.64 34.28 49.44 25.75 255.46 117.66 28.77 2.46 

1993 0.00 2.46 276.59 847.59 128.40 170.94 1,010.21 517.42 111.16 

1994 15.93 10.79 686.89 820.27 270.69 38.40 830.20 44.89 13.66 

1995 8.11 7.60 1,321.59 793.95 459.99 160.64 723.29 70.53 22.95 

1996 6.66 2.80 313.53 1,022.54 1,064.17 377.26 55.64 11.98 0.46 

1997 1.21 0.70 1.19 6,093.68 840.95 210.91 200.95 80.49 46.46 

1998 11.76 230.38 727.59 1,000.87 1,394.87 705.60 1,263.89 268.79 108.03 

1999 79.98 54.71 730.69 587.14 461.11 307.07 169.38 175.20 489.99 

2000 29.00 71.85 452.33 261.00 236.21 141.05 322.41 54.07 3.74 

2001 1.38 1.20 2.60 3,317.80 591.08 182.47 122.02 20.15 2.85 

pp
Gaged (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Red River of the North at F

1931 21.10 39.30 128.00 190.40 167.60 132.00 64.80 20.80 15.60 

1932 36.10 47.30 134.90 231.80 55.60 33.20 7.73 0.00 8.78 

1933 0.00 0.18 129.30 206.80 73.60 51.10 15.30 1.59 0.08 

1934 14.00 20.50 43.00 102.10 8.12 3.31 0.00 0.00 0.00 

1935 0.00 11.70 386.30 151.50 112.60 86.70 183.70 32.50 8.45 

1936 13.90 5.81 161.30 428.00 86.70 2.87 0.00 0.00 0.00 

1937 4.40 0.97 26.80 444.60 252.70 183.40 107.50 55.70 139.30 

1938 5.34 14.90 236.40 163.60 425.70 330.10 98.90 18.50 57.70 

1939 93.90 98.10 739.30 705.60 213.00 130.40 85.40 12.00 0.00 

1940 1.08 8.57 40.10 446.60 384.40 185.50 15.10 3.20 0.00 

1941 42.70 87.00 252.40 644.30 324.40 485.30 130.00 25.30 81.50 

1942 112.10 109.80 190.00 325.60 1,299.00 1,665.00 988.80 469.90 608.20 

1943 318.90 272.00 463.60 6,164.00 1,860.00 2,803.00 1,765.00 770.80 428.20 

1944 202.20 163.20 255.30 868.20 1,196.00 2,128.00 2,013.00 689.30 769.80 

1945 430.90 389.20 2,814.00 1,671.00 999.30 1,107.00 375.40 155.00 134.40 

1946 186.80 112.80 1,550.00 1,348.00 639.80 420.40 705.60 598.90 503.80 

1947 413.80 338.80 513.20 3,537.00 1,881.00 1,612.00 1,149.00 247.40 201.70 

1948 140.20 103.30 215.70 1,806.00 1,619.00 625.40 273.70 217.80 172.10 

1949 65.30 86.30 180.90 717.80 251.20 224.50 871.90 229.80 88.40 

1950 88.30 133.60 527.20 3,669.00 3,320.00 1,768.00 1,521.00 768.40 213.70 

1951 153.40 153.20 255.50 3,233.00 1,712.00 1,114.00 632.70 388.10 341.20 

1952 528.90 535.00 533.40 7,256.00 2,149.00 1,609.00 1,270.00 426.40 445.30 

1953 138.00 183.20 685.90 691.50 1,253.00 3,281.00 1,539.00 899.40 568.50 

1954 357.20 344.00 631.40 863.00 943.90 1,190.00 721.10 233.50 240.50 

1955 221.90 186.60 276.60 862.60 375.40 322.10 705.30 456.40 454.70 

1956 238.40 219.60 250.80 1,410.00 834.30 830.90 287.90 265.90 113.90 

1957 87.20 104.50 458.80 902.00 961.70 1,112.00 898.60 574.20 627.30 

1958 323.10 306.60 574.10 849.50 379.10 164.10 794.10 227.30 173.50 

1959 245.10 242.60 364.20 407.50 427.80 687.40 617.50 216.00 164.80 

1960 208.00 228.10 308.90 1,493.00 955.10 834.80 528.70 179.10 108.00 

1961 141.20 169.40 422.30 321.80 428.40 425.20 177.20 81.50 52.60 

1962 76.10 85.40 203.10 2,617.00 3,352.00 5,122.00 5,692.00 2,691.00 844.50 

1963 288.80 189.40 420.50 777.60 629.80 2,396.00 529.30 190.50 149.00 

1964 138.80 169.80 193.80 1,182.00 1,142.00 734.80 385.10 93.90 118.10 

1965 193.70 184.60 207.20 3,740.00 1,648.00 2,787.00 1,515.00 536.00 507.50 

Year January February March April May June July August September 
Gaged (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Red River of the North at Fargo, N

1966 491.30 490.00 3,756.00 2,269.00 2,312.00 1,810.00 794.30 899.90 410.00 

1967 427.90 384.30 902.60 2,248.00 1,556.00 2,081.00 1,218.00 259.10 85.60 

1968 134.60 135.40 373.70 502.50 674.60 639.80 435.10 222.80 156.80 

1969 232.40 317.90 480.90 9,924.00 3,574.00 1,483.00 629.80 209.20 49.20 

1970 154.30 174.00 250.00 1,027.00 838.50 1,207.00 510.50 109.50 14.10 

1971 137.70 125.20 565.80 663.10 377.50 368.70 706.40 141.00 246.20 

1972 554.00 408.30 2,469.00 2,255.00 2,020.00 1,787.00 939.60 695.20 434.20 

1973 383.80 440.60 978.10 541.20 338.00 283.20 155.00 115.50 120.20 

1974 481.00 519.30 731.60 1,313.00 1,060.00 1,108.00 707.60 355.30 225.00 

1975 188.10 267.70 388.80 3,201.00 1,463.00 2,430.00 5,378.00 708.00 433.90 

1976 230.30 290.00 1,002.00 1,040.00 340.70 166.90 91.30 35.00 12.30 

1977 14.80 19.00 85.20 193.90 77.10 91.10 74.80 18.50 177.70 

1978 405.60 327.70 1,293.00 6,926.00 1,756.00 1,239.00 1,553.00 364.20 113.80 

1979 97.90 93.00 266.00 6,768.00 2,576.00 1,938.00 1,461.00 1,012.00 634.90 

1980 377.60 385.90 676.20 1,796.00 586.90 580.90 160.70 124.50 31.50 

1981 85.80 139.70 245.10 253.90 346.30 231.50 222.00 272.30 44.50 

1982 225.30 241.80 724.80 2,407.00 927.10 814.60 622.30 313.90 189.90 

1983 294.60 300.80 702.20 632.30 394.90 227.50 578.40 304.00 362.40 

1984 252.10 349.80 1,618.00 3,347.00 1,171.00 2,110.00 1,026.00 381.50 176.60 

1985 252.80 331.30 1,468.00 1,102.00 1,341.00 2,175.00 1,348.00 1,148.00 1,049.00 

1986 739.70 661.80 1,912.00 5,669.00 4,589.00 2,580.00 2,010.00 911.40 1,707.00 

1987 706.90 778.10 1,415.00 926.60 668.10 507.30 365.00 153.10 152.70 

1988 143.70 244.20 605.40 512.10 392.40 218.10 63.00 69.10 65.50 

1989 46.90 139.20 291.50 6,367.00 1,145.00 866.10 319.80 156.10 227.20 

1990 93.70 147.50 323.80 495.90 546.60 594.00 399.10 226.60 175.40 

1991 72.60 86.40 334.30 567.90 927.50 1,116.00 1,662.00 587.50 750.00 

1992 193.50 268.90 735.70 499.50 458.20 895.10 493.30 499.50 335.70 

1993 209.70 284.80 776.20 3,993.00 1,328.00 1,909.00 4,119.00 3,293.00 2,280.00 

1994 603.20 697.50 2,754.00 5,016.00 2,852.00 1,577.00 2,600.00 853.80 315.50 

1995 400.70 440.70 4,722.00 4,390.00 3,002.00 1,888.00 1,731.00 462.20 280.40 

1996 471.00 523.90 2,361.00 4,851.00 3,888.00 1,908.00 745.10 387.10 209.80 

1997 461.90 680.70 957.70 17,920.00 5,365.00 2,408.00 1,432.00 842.10 640.40 

1998 508.70 1,353.00 3,301.00 2,626.00 3,718.00 2,253.00 3,857.00 1,304.00 690.10 

1999 701.90 699.70 2,458.00 2,329.00 2,238.00 2,530.00 1,594.00 1,427.00 1,770.00 

2000 444.00 489.00 2,304.00 1,405.00 1,420.00 1,794.00 1,655.00 774.00 560.00 

2001 715.00 680.00 1,213.00 10,540.00 4,165.00 3,361.00 2,477.00 969.00 584.00 

pp
Gaged (October 1955 through December 2001) and estimated (January 1931 through September 1955) historic stream

in cubic feet per second, for the Sheyenne River above Harvey, N. Dak.

1931 1.00 4.01 8.02 14.94 3.98 5.53 1.47 1.02 0.86 

1932 2.00 1.63 14.65 36.08 6.78 6.04 2.80 1.43 0.99 

1933 1.25 1.23 27.21 26.29 8.33 3.21 1.86 0.83 0.57 

1934 0.78 1.07 4.26 13.14 2.65 1.19 0.69 0.45 0.42 

1935 0.71 1.20 7.78 11.69 5.01 4.38 5.10 6.43 1.61 

1936 1.26 1.15 3.48 20.20 9.42 2.59 1.07 0.35 0.39 

1937 0.61 0.43 2.40 12.79 4.79 4.86 1.73 1.05 1.00 

1938 0.94 1.01 6.13 7.61 3.33 1.86 0.91 0.60 0.01 

1939 0.03 0.04 6.25 10.53 1.46 1.01 0.11 0.00 0.00 

1940 0.00 0.00 0.00 15.89 4.30 0.59 0.02 0.12 0.00 

1941 0.00 0.00 6.28 88.05 8.11 9.14 4.14 1.25 3.08 

1942 0.44 0.56 2.47 68.09 16.56 11.29 3.86 3.43 3.16 

1943 1.03 2.16 43.42 83.52 12.95 28.20 9.08 2.75 0.55 

1944 0.42 0.49 1.44 10.07 5.13 11.15 4.34 5.16 6.93 

1945 1.12 1.34 41.39 15.52 6.32 5.50 1.84 1.79 0.84 

1946 0.09 0.00 20.76 6.41 1.02 0.17 1.99 0.01 0.00 

1947 0.00 0.00 21.39 13.96 3.41 6.29 6.01 0.32 0.15 

1948 0.10 0.00 0.18 187.90 25.87 2.86 1.05 0.21 0.00 

1949 0.00 0.00 0.26 147.64 6.80 6.03 1.02 0.00 0.00 

1950 0.00 0.00 3.06 289.91 177.45 27.10 4.36 0.24 0.11 

1951 1.60 0.72 1.93 111.85 19.86 34.96 3.97 0.90 2.50 

1952 0.00 0.00 5.28 102.01 9.36 2.82 5.78 0.03 0.00 

1953 0.00 0.00 6.18 6.84 11.04 7.64 2.75 0.00 0.00 

1954 0.05 8.05 4.65 7.55 2.83 76.10 23.84 4.79 5.05 

1955 0.19 0.00 16.20 28.99 9.62 12.18 2.01 0.07 0.00 

1956 0.11 0.00 11.27 76.59 17.22 20.22 2.82 0.46 0.53 

1957 0.15 0.00 5.39 4.25 4.27 2.39 1.58 1.05 2.11 

1958 0.64 3.57 7.15 4.97 2.38 2.07 6.94 0.10 0.44 

1959 0.00 0.00 6.50 2.99 2.58 1.13 0.41 0.00 0.19 

1960 0.32 0.00 30.60 5.76 6.69 3.40 0.18 0.92 0.74 

1961 0.04 0.19 1.80 3.09 1.64 0.30 0.07 0.03 0.56 

1962 0.00 0.00 14.20 3.21 6.54 5.56 5.78 0.76 0.68 

1963 0.05 0.00 2.87 3.79 4.37 6.73 1.58 0.98 0.31 

1964 0.01 0.03 0.08 10.00 3.42 8.30 2.55 0.95 1.76 

1965 0.00 0.00 3.38 26.70 5.49 1.82 4.02 0.99 2.55 

Year January February March April May June July August September 
Gaged (October 1955 through December 2001) and estimated (January 1931 through September 1955) historic stream

in cubic feet per second, for the Sheyenne River above Harvey, N. Dak.—Continued

1966 0.00 0.00 61.40 4.89 3.43 3.01 9.32 1.07 0.46 

1967 0.00 0.00 36.20 28.90 28.70 2.49 0.56 0.00 0.17 

1968 0.01 0.05 10.30 4.07 5.75 1.65 1.11 2.01 2.02 

1969 0.00 0.00 0.00 101.00 15.20 2.52 3.04 1.33 0.92 

1970 0.34 0.20 0.63 19.80 14.80 7.41 3.81 1.64 1.39 

1971 0.16 0.20 6.14 90.50 14.30 54.00 9.01 1.84 1.34 

1972 0.00 0.00 61.20 25.80 13.90 3.09 1.09 0.81 0.71 

1973 2.32 5.86 6.15 5.11 2.25 1.81 0.78 0.72 1.09 

1974 0.00 0.90 15.60 22.40 54.40 17.50 0.76 0.37 0.94 

1975 0.18 0.43 13.20 72.50 50.20 14.60 18.70 1.04 1.75 

1976 0.42 2.04 71.10 49.80 8.64 1.78 0.42 0.07 0.06 

1977 0.00 0.00 3.73 2.66 1.59 0.87 1.02 0.80 4.79 

1978 0.25 0.34 34.80 15.90 7.76 3.71 2.94 0.33 0.60 

1979 0.30 0.37 0.69 74.30 41.70 9.32 13.60 4.67 1.08 

1980 0.94 0.50 9.27 19.10 3.55 2.15 1.29 6.64 3.90 

1981 0.00 12.90 36.90 13.90 7.02 17.10 5.22 1.61 3.57 

1982 0.15 19.10 123.00 98.70 25.80 17.60 43.40 5.35 0.73 

1983 4.10 26.80 111.00 54.70 28.60 8.43 3.48 1.60 1.66 

1984 3.19 6.68 44.80 93.40 62.10 18.10 3.34 3.24 4.29 

1985 0.00 7.61 24.80 25.20 9.96 4.22 5.70 25.60 4.39 

1986 0.56 3.45 81.40 45.90 24.90 6.07 2.81 1.73 2.53 

1987 1.29 3.01 48.50 41.80 13.20 10.40 41.00 5.71 2.24 

1988 0.01 0.77 9.09 3.79 2.35 1.63 0.93 1.32 0.73 

1989 0.00 0.00 13.50 10.50 2.04 1.84 1.06 1.22 1.84 

1990 1.13 1.08 2.25 2.90 2.83 5.06 6.29 0.92 1.48 

1991 1.05 1.61 3.33 2.13 2.65 1.12 1.03 1.08 2.46 

1992 0.48 3.75 11.50 3.05 2.15 1.40 1.51 0.76 1.68 

1993 0.13 0.45 27.20 7.69 4.84 12.70 58.90 22.50 4.68 

1994 0.32 0.14 54.80 34.20 9.24 10.90 4.19 1.84 2.57 

1995 3.11 0.64 145.80 108.90 116.70 27.30 14.80 4.34 1.99 

1996 0.00 0.00 36.00 165.80 51.00 15.80 6.75 4.18 1.86 

1997 3.10 2.82 43.70 324.40 88.30 18.40 14.70 3.25 1.16 

1998 3.10 13.20 95.90 77.10 18.10 7.33 5.53 0.92 3.03 

1999 6.37 4.88 82.80 107.50 112.30 37.70 19.10 59.40 48.40 

2000 6.73 18.50 39.30 20.80 26.80 77.30 67.40 23.50 16.30 

2001 2.88 2.43 207.00 133.00 37.70 50.50 46.50 10.90 3.02 

pp
Gaged (October 1949 through December 2001) and estimated (January 1931 through September 1949) historic stream

in cubic feet per second, for the Sheyenne River near Warwick, N. Dak.

1931 3.89 15.54 34.19 63.69 20.24 28.08 7.46 5.19 4.38 

1932 7.74 6.31 62.46 153.81 34.42 30.67 14.23 7.27 5.05 

1933 4.86 4.77 115.99 112.06 42.29 16.31 9.42 4.23 2.87 

1934 3.04 4.13 18.17 56.01 13.44 6.03 3.52 2.31 2.14 

1935 2.76 4.65 33.18 49.82 25.43 22.27 25.91 32.65 8.18 

1936 4.89 4.46 14.82 86.10 47.86 13.16 5.43 1.78 2.00 

1937 2.36 1.66 10.21 54.51 24.35 24.69 8.78 5.31 5.09 

1938 3.64 3.92 26.15 32.46 16.94 9.42 4.62 9.83 4.02 

1939 3.46 3.07 29.31 72.23 14.76 13.30 6.39 2.70 2.17 

1940 1.93 1.73 1.89 58.64 29.04 10.55 3.54 2.63 2.07 

1941 3.83 3.83 9.01 289.70 55.11 52.31 27.05 11.53 12.68 

1942 7.35 6.86 12.95 185.40 97.04 71.35 26.29 18.47 26.12 

1943 10.08 11.08 75.13 462.18 88.77 183.92 65.01 31.57 15.05 

1944 8.32 9.65 10.88 62.01 62.55 59.97 43.63 39.44 44.35 

1945 5.17 6.46 253.03 80.17 46.29 38.83 11.72 5.07 6.04 

1946 6.10 2.40 231.74 186.02 31.31 14.26 36.64 20.12 7.69 

1947 5.00 2.88 95.20 260.55 39.48 38.12 17.34 8.58 3.18 

1948 6.85 3.49 4.24 1,114.85 366.38 41.02 27.70 15.74 1.63 

1949 3.62 3.00 13.90 715.26 82.86 43.86 32.97 14.56 1.69 

1950 1.50 1.50 12.30 1,421.00 854.00 98.80 30.00 8.23 6.08 

1951 10.60 6.68 21.70 440.00 90.50 70.10 21.50 2.68 11.60 

1952 2.03 3.24 6.23 284.00 43.40 6.13 44.90 3.55 1.37 

1953 2.35 2.57 13.30 38.50 60.30 61.20 64.40 3.06 2.07 

1954 3.61 34.80 79.00 64.10 30.90 326.00 170.00 48.30 38.30 

1955 3.14 2.43 40.40 333.00 65.40 77.50 23.60 4.48 2.11 

1956 1.51 1.88 2.19 631.00 100.00 189.00 19.00 3.93 9.56 

1957 2.62 1.30 43.30 51.30 36.40 21.10 24.50 25.80 63.00 

1958 9.23 8.21 38.70 62.10 20.90 16.00 61.50 4.84 1.42 

1959 3.20 2.49 48.60 35.20 23.90 8.92 2.57 1.11 0.80 

1960 2.81 1.82 21.70 392.00 97.40 63.40 12.60 4.46 1.04 

1961 0.72 0.96 23.20 31.50 13.70 1.75 1.45 0.09 0.71 

1962 1.56 1.30 23.10 123.00 59.40 84.40 22.70 15.80 6.60 

1963 2.14 1.52 17.10 32.00 22.40 23.00 6.95 3.57 1.71 

1964 1.07 1.26 1.46 88.60 32.80 58.20 24.00 5.39 11.70 

1965 2.04 3.06 12.30 271.00 38.70 17.00 123.00 57.20 24.20 

Year January February March April May June July August September 
Gaged (October 1949 through December 2001) and estimated (January 1931 through September 1949) historic stream

in cubic feet per second, for the Sheyenne River near Warwick, N. Dak.—Continued

1966 3.27 2.20 650.00 136.00 88.80 28.40 51.10 18.40 6.66 

1967 3.64 4.74 197.00 212.00 140.00 29.50 10.40 1.43 1.57 

1968 2.25 2.54 91.30 26.90 31.40 13.10 5.65 5.87 12.60 

1969 2.58 2.17 2.37 1,022.00 85.00 26.70 24.20 24.00 5.85 

1970 3.64 3.57 14.60 179.00 108.00 58.70 13.40 27.60 4.80 

1971 3.18 2.10 4.61 675.00 66.60 164.00 79.60 6.85 18.30 

1972 4.11 3.09 326.00 151.00 78.10 34.30 2.88 1.96 1.92 

1973 2.39 1.88 72.90 25.50 20.10 6.66 1.56 1.88 3.25 

1974 2.25 2.48 15.30 464.00 489.00 89.10 9.75 0.90 0.89 

1975 5.95 5.75 51.60 561.00 369.00 67.50 45.40 6.38 8.07 

1976 5.21 11.00 297.00 280.00 64.50 18.50 3.58 1.23 1.55 

1977 3.32 3.43 15.40 15.80 12.50 2.24 1.07 1.18 1.70 

1978 4.37 2.38 30.50 348.00 21.50 15.30 13.90 12.20 2.51 

1979 7.09 4.76 5.79 701.00 289.00 56.20 117.00 52.00 8.30 

1980 4.66 4.41 26.30 176.00 21.70 36.00 5.57 21.60 42.00 

1981 12.30 154.00 165.00 71.60 53.70 135.00 40.50 19.70 28.00 

1982 5.85 3.91 154.00 609.00 134.00 92.10 159.00 42.20 11.00 

1983 26.30 55.90 793.00 309.00 105.00 45.20 21.40 5.46 8.40 

1984 4.30 26.60 248.00 267.00 190.00 44.30 4.24 2.48 1.93 

1985 3.65 4.09 249.90 39.80 29.40 29.00 7.01 80.30 44.60 

1986 8.45 7.79 423.40 250.70 132.80 14.50 22.30 32.30 28.30 

1987 13.10 16.10 215.70 545.10 52.80 18.70 142.00 60.20 16.90 

1988 5.71 7.99 65.20 49.00 24.70 11.50 0.69 0.77 2.65 

1989 3.88 3.50 4.44 186.50 23.10 4.74 0.36 0.40 0.76 

1990 0.47 0.75 5.44 24.90 10.40 26.70 8.57 3.64 2.12 

1991 1.64 2.64 10.50 17.00 34.50 23.80 31.90 14.60 22.10 

1992 7.33 13.70 346.10 39.00 22.30 4.85 1.71 0.56 0.84 

1993 3.00 2.96 82.50 182.10 49.60 20.70 299.20 423.40 37.80 

1994 10.70 9.85 339.90 198.80 78.90 163.20 53.30 10.40 11.50 

1995 22.50 15.70 696.40 479.60 282.90 91.40 88.80 53.50 12.10 

1996 8.83 7.58 143.60 1,165.00 302.40 103.50 56.00 33.20 13.30 

1997 7.72 6.86 35.00 1,794.00 414.00 61.70 104.20 34.70 18.40 

1998 9.33 58.60 406.00 354.60 71.70 44.40 21.70 6.28 7.20 

1999 9.97 11.10 205.10 1,106.00 518.30 190.90 181.90 196.60 125.40 

2000 16.70 24.90 111.00 110.00 106.00 321.00 441.00 148.00 154.00 

2001 55.20 45.40 122.00 1,106.00 277.00 258.00 205.00 135.00 52.10 

pp
Gaged (October 1944 through December 2001) and estimated (January 1931 through September 1944) historic stream

in cubic feet per second, for the Sheyenne River near Cooperstown, N. Dak.

1931 6.01 24.05 54.54 101.60 34.16 47.40 12.60 8.76 7.39 

1932 11.98 9.77 99.65 245.37 58.10 51.76 24.02 12.27 8.52 

1933 7.51 7.37 185.04 178.76 71.38 27.54 15.91 7.15 4.85 

1934 4.70 6.39 28.99 89.36 22.69 10.17 5.94 3.89 3.61 

1935 4.27 7.19 52.94 79.48 42.92 37.59 43.73 55.11 13.81 

1936 7.56 6.90 23.64 137.36 80.79 22.21 9.17 3.01 3.38 

1937 3.65 2.57 16.30 86.96 41.10 41.67 14.82 8.96 8.60 

1938 5.64 6.06 41.72 28.55 15.85 5.02 7.79 5.15 0.08 

1939 0.16 0.21 42.66 71.84 12.57 8.70 0.98 0.02 0.01 

1940 0.00 0.00 0.00 108.38 36.95 5.07 0.19 1.03 0.04 

1941 0.00 0.00 42.85 600.52 69.72 78.66 35.64 10.73 26.46 

1942 2.62 3.39 16.82 464.41 142.43 97.14 33.19 29.50 27.17 

1943 6.21 12.99 296.16 569.64 111.44 242.54 78.07 23.66 4.77 

1944 2.51 2.94 9.83 68.68 44.16 95.94 37.30 44.40 59.59 

1945 8.00 10.00 404.00 128.00 78.20 65.60 19.80 8.57 10.20 

1946 9.44 3.71 370.00 297.00 52.90 24.10 61.90 34.00 13.00 

1947 7.74 4.46 152.00 416.00 66.70 64.40 29.30 14.50 5.38 

1948 10.60 5.41 6.77 1,780.00 619.00 69.30 46.80 26.60 2.76 

1949 5.61 4.64 22.20 1,142.00 140.00 74.10 55.70 24.60 2.85 

1950 12.90 8.61 53.70 2,293.00 1,953.00 273.00 80.40 24.60 25.40 

1951 20.80 17.90 83.60 650.00 173.00 91.40 35.00 11.20 31.80 

1952 11.60 10.60 44.30 447.00 80.00 32.00 85.60 12.10 6.26 

1953 6.23 7.71 18.30 62.80 73.30 123.00 132.00 8.74 2.38 

1954 7.68 48.20 122.00 117.00 51.30 313.00 213.00 65.50 47.30 

1955 8.58 7.84 27.60 439.00 96.50 171.00 45.90 6.45 0.86 

1956 4.66 4.00 4.81 678.00 243.00 280.00 51.30 12.90 18.30 

1957 9.87 7.43 75.40 109.00 75.10 45.30 47.30 36.70 155.00 

1958 17.80 15.80 48.10 127.00 45.90 38.00 108.00 12.80 2.35 

1959 3.30 1.48 36.90 130.00 42.10 24.30 10.40 0.85 0.00 

1960 5.08 3.74 52.80 616.10 101.40 121.40 31.80 8.20 4.24 

1961 3.63 0.61 51.30 79.00 37.30 6.66 3.84 0.68 0.70 

1962 4.09 2.36 24.70 360.50 108.20 189.20 49.10 26.40 11.90 

1963 4.00 0.00 32.80 94.60 39.00 30.00 28.10 2.67 2.67 

1964 1.94 1.22 2.14 161.80 62.40 236.70 101.30 27.70 40.90 

1965 9.12 7.49 10.00 925.50 146.50 99.60 91.10 153.40 55.00 

Year January February March April May June July August September 
Gaged (October 1944 through December 2001) and estimated (January 1931 through September 1944) historic stream

in cubic feet per second, for the Sheyenne River near Cooperstown, N. Dak.—Continued

1966 14.00 7.65 1,022.00 385.30 236.20 154.50 188.40 107.90 27.80 

1967 11.20 11.80 236.90 891.10 313.60 95.30 39.00 8.02 5.21 

1968 8.75 7.53 169.20 125.90 78.90 81.30 23.90 14.60 24.60 

1969 8.77 8.43 7.84 1,867.00 263.70 97.60 88.20 38.90 32.20 

1970 15.60 11.70 32.30 520.70 265.40 184.70 39.00 39.30 19.20 

1971 9.53 8.86 43.80 992.30 170.00 219.20 159.20 25.90 32.50 

1972 10.10 7.06 462.00 478.50 266.60 130.70 21.40 15.50 7.79 

1973 11.80 8.80 142.80 73.50 48.10 31.10 6.37 1.85 17.30 

1974 7.75 5.84 10.30 1,111.00 659.90 435.20 41.90 16.70 5.29 

1975 12.30 14.00 104.40 715.00 670.00 168.30 95.30 17.90 11.00 

1976 11.70 12.10 196.30 596.40 115.90 39.00 16.70 3.05 0.87 

1977 3.10 3.47 21.90 59.20 39.10 11.20 9.30 0.78 3.32 

1978 8.52 5.03 91.30 707.90 93.80 50.60 21.50 21.50 30.80 

1979 6.81 6.50 6.06 1,322.00 949.10 127.50 187.00 69.20 21.50 

1980 11.20 10.50 43.30 283.50 57.40 53.40 15.10 8.06 50.60 

1981 15.50 74.70 303.50 127.80 73.70 149.40 87.30 29.70 26.10 

1982 8.84 4.61 104.50 875.50 214.50 165.90 195.40 61.50 17.00 

1983 28.90 26.90 1,094.00 542.20 176.50 161.50 120.90 115.00 97.50 

1984 25.50 16.60 354.50 770.90 328.30 115.00 40.90 8.95 0.97 

1985 5.05 5.51 299.50 128.70 105.10 80.20 18.30 17.40 56.90 

1986 20.20 10.70 500.90 421.10 298.70 49.00 71.60 42.10 24.30 

1987 22.90 28.00 247.90 1,603.00 141.40 93.90 229.40 213.60 53.20 

1988 16.50 17.60 154.60 183.00 72.30 29.30 24.30 8.41 1.82 

1989 2.63 7.59 11.20 305.40 68.20 37.80 8.06 1.87 7.11 

1990 6.16 5.79 7.83 69.50 38.40 76.80 40.70 13.50 6.44 

1991 3.21 8.66 22.50 42.40 61.80 30.00 45.40 10.40 15.00 

1992 12.90 19.60 516.90 96.50 64.00 39.10 80.80 15.30 8.56 

1993 8.86 9.36 43.30 397.50 125.60 73.60 640.20 1,033.00 220.40 

1994 31.40 31.20 426.10 686.10 179.30 318.70 314.80 108.10 321.00 

1995 68.20 64.40 1,381.00 1,244.00 533.50 222.80 205.30 118.10 51.30 

1996 34.00 33.00 116.30 2,623.00 578.60 252.60 203.50 107.80 35.60 

1997 31.30 26.40 41.10 2,390.00 1,153.00 202.20 213.20 101.60 47.10 

1998 30.90 112.30 329.10 740.80 209.50 119.20 76.50 25.90 17.60 

1999 20.90 22.10 190.90 1,940.00 820.60 480.30 409.20 262.90 224.70 

2000 31.40 45.80 180.00 154.00 146.00 873.00 722.00 251.00 287.00 

2001 66.20 50.80 126.00 1,892.00 574.00 417.00 310.00 365.00 68.10 

pp
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for Baldhill Creek at the 

1931 2.24 8.98 18.99 35.38 10.47 14.53 3.86 2.69 2.26 

1932 4.47 3.65 34.70 85.44 17.81 15.87 7.36 3.76 2.61 

1933 2.81 2.75 64.43 62.25 21.88 8.44 4.88 2.19 1.49 

1934 1.75 2.38 10.09 31.12 6.96 3.12 1.82 1.19 1.11 

1935 1.60 2.68 18.43 27.67 13.16 11.52 13.40 16.89 4.23 

1936 2.82 2.58 8.23 47.83 24.76 6.81 2.81 0.92 1.04 

1937 1.36 0.96 5.67 30.28 12.60 12.77 4.54 2.75 2.64 

1938 2.10 2.26 14.53 9.89 4.83 1.53 2.39 1.57 0.02 

1939 0.06 0.08 14.78 24.88 3.83 2.65 0.30 0.01 0.00 

1940 0.00 0.00 0.00 37.54 11.26 1.54 0.06 0.31 0.01 

1941 0.00 0.00 14.84 207.99 21.24 23.97 10.86 3.27 8.06 

1942 0.97 1.26 5.83 160.85 43.40 29.60 10.11 8.99 8.28 

1943 2.31 4.83 102.58 197.30 33.95 73.90 23.79 7.21 1.45 

1944 0.93 1.09 3.40 23.79 13.45 29.23 11.37 13.53 18.16 

1945 2.74 3.35 118.91 40.52 20.20 17.21 5.43 3.65 2.65 

1946 2.97 1.30 109.09 93.05 14.43 7.02 13.63 9.42 3.83 

1947 3.28 1.87 51.55 140.85 18.08 18.46 7.69 3.37 0.96 

1948 2.96 1.61 4.67 535.16 181.54 19.48 12.08 7.73 1.37 

1949 1.80 1.73 12.65 334.77 38.42 20.65 17.57 3.17 0.27 

1950 1.04 0.94 7.61 629.55 407.83 41.11 12.20 3.17 3.29 

1951 2.48 2.17 12.58 107.85 20.70 10.65 4.74 1.29 4.25 

1952 0.87 1.19 6.11 63.71 7.99 2.90 13.11 1.42 0.67 

1953 0.28 0.83 2.24 4.08 7.18 15.40 21.52 0.98 0.23 

1954 0.41 6.67 19.33 9.72 4.63 48.78 36.98 9.66 6.68 

1955 0.50 0.84 3.57 62.16 10.07 23.16 6.45 0.69 0.07 

1956 0.17 0.39 0.49 131.99 13.72 12.02 3.68 1.98 2.09 

1957 0.76 0.00 8.78 10.74 10.12 6.03 9.80 6.55 66.33 

1958 2.11 2.42 5.19 14.09 8.10 9.75 13.38 2.44 1.45 

1959 0.00 0.00 8.80 7.80 7.76 6.59 3.76 1.70 1.42 

1960 0.02 0.00 36.02 94.96 8.30 8.13 2.10 2.62 2.39 

1961 0.15 0.04 10.97 8.36 6.11 1.03 0.99 1.02 2.20 

1962 0.11 0.11 28.63 52.35 16.21 20.41 16.10 2.87 3.24 

1963 0.10 0.00 2.71 11.15 6.41 4.44 2.01 1.13 1.13 

1964 0.25 0.22 0.66 15.21 6.80 19.95 13.38 5.19 5.14 

1965 0.48 0.46 2.48 277.73 22.11 10.03 13.38 7.71 9.00 

Year January February March April May June July August September 
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for Baldhill Creek at the mouth

1966 0.27 0.10 183.22 32.10 29.82 25.85 22.34 6.77 3.25 

1967 1.35 0.92 108.05 111.63 46.26 20.07 8.28 4.04 1.64 

1968 0.62 0.61 22.37 15.88 19.61 35.83 12.59 5.53 4.58 

1969 0.30 0.68 2.38 509.94 32.31 23.36 13.27 1.98 3.97 

1970 1.99 2.22 14.21 48.88 29.93 57.37 12.36 6.95 7.78 

1971 0.35 1.00 35.79 97.98 15.31 25.06 10.28 1.94 3.13 

1972 1.53 0.21 74.05 89.26 38.21 15.42 2.91 3.13 2.20 

1973 0.90 1.89 26.17 8.08 6.72 3.23 0.70 1.07 3.37 

1974 0.44 0.81 2.68 260.51 42.40 18.71 2.53 2.17 1.63 

1975 1.72 0.75 10.63 165.77 43.65 23.70 40.48 3.07 3.20 

1976 1.13 4.06 85.90 37.69 8.61 2.73 1.33 0.10 0.15 

1977 0.09 0.46 6.42 7.62 3.53 1.77 1.85 0.97 3.73 

1978 0.81 0.20 66.89 93.62 13.61 3.80 0.93 0.92 0.84 

1979 0.16 0.11 1.45 731.19 92.97 10.83 3.15 2.21 1.04 

1980 1.03 0.49 17.23 33.00 3.05 2.09 0.27 2.25 1.27 

1981 0.89 2.58 3.26 2.73 1.94 2.53 0.50 0.64 0.57 

1982 0.53 1.79 75.50 83.89 11.79 7.35 5.17 1.08 0.69 

1983 2.69 5.97 195.74 42.50 14.29 19.84 19.73 4.04 4.41 

1984 2.12 4.75 160.29 67.56 26.87 6.11 0.72 0.09 0.11 

1985 0.62 2.08 26.29 3.62 4.01 9.89 2.68 1.36 2.73 

1986 2.59 1.92 54.36 34.79 42.40 5.36 6.42 5.24 5.88 

1987 3.39 5.58 301.45 295.74 21.88 10.44 14.17 3.40 4.34 

1988 1.17 1.87 46.31 28.52 11.03 2.20 0.40 0.76 0.62 

1989 0.89 0.49 8.42 65.43 6.97 1.96 0.02 2.23 5.00 

1990 0.00 0.07 3.20 13.76 2.36 13.95 8.29 0.30 0.57 

1991 0.00 0.08 2.64 3.53 8.27 2.88 0.91 0.15 0.37 

1992 1.67 5.12 88.03 7.94 2.93 2.43 3.03 0.74 2.04 

1993 0.06 1.32 85.12 81.88 21.09 13.83 309.86 151.13 59.52 

1994 5.97 5.37 219.12 140.26 40.14 56.01 58.39 16.55 45.46 

1995 8.12 7.13 531.87 377.40 162.47 53.86 93.88 62.36 39.46 

1996 7.04 6.00 119.24 752.55 152.04 60.09 51.59 32.65 9.85 

1997 5.45 5.91 22.48 1,163.28 249.21 44.10 31.75 6.25 7.17 

1998 3.64 37.97 142.61 116.66 36.62 9.24 8.87 3.82 3.25 

1999 3.73 4.13 277.85 457.82 207.37 204.42 72.90 25.96 20.64 

2000 1.75 16.10 27.07 32.66 28.23 104.08 72.45 29.14 16.67 

2001 5.83 3.73 58.61 259.50 74.04 48.98 21.43 41.50 14.29 

pp
Gaged (October 1949 through December 2001) and estimated (January 1931 through September 1949) historic stream

in cubic feet per second, for the Sheyenne River below Baldhill Dam, N. Dak.

1931 8.50 34.01 79.06 147.27 51.78 71.86 19.10 13.28 11.20 

1932 16.94 13.82 144.43 355.66 88.08 78.47 36.42 18.61 12.91 

1933 10.63 10.43 268.21 259.11 108.22 41.74 24.12 10.83 7.35 

1934 6.64 9.03 42.01 129.52 34.40 15.42 9.00 5.90 5.48 

1935 6.04 10.16 76.73 115.20 65.06 56.98 66.29 83.55 20.93 

1936 10.69 9.76 34.27 199.09 122.48 33.66 13.89 4.57 5.12 

1937 5.16 3.63 23.62 126.04 62.31 63.17 22.46 13.59 13.04 

1938 7.97 8.57 60.47 41.37 24.03 7.61 11.81 7.80 0.12 

1939 0.23 0.30 61.82 104.10 19.06 13.19 1.49 0.03 0.01 

1940 0.00 0.00 0.00 157.06 56.00 7.68 0.29 1.55 0.05 

1941 0.00 0.00 62.10 870.25 105.67 119.22 54.01 16.26 40.10 

1942 3.70 4.80 24.38 673.00 215.86 147.22 50.31 44.71 41.19 

1943 8.78 18.37 429.19 825.50 168.90 367.60 118.32 35.86 7.23 

1944 3.55 4.16 14.25 99.54 66.93 145.41 56.54 67.29 90.32 

1945 9.55 11.39 409.10 153.41 82.37 71.71 23.93 23.30 10.93 

1946 9.28 4.65 376.22 347.92 63.31 33.33 41.73 42.09 18.33 

1947 14.06 7.91 210.94 575.30 78.67 85.98 32.06 11.56 1.44 

1948 7.52 4.57 29.22 1,896.65 867.07 88.69 49.22 36.58 9.48 

1949 5.74 6.61 73.69 1,145.11 169.80 93.03 90.32 2.74 1.11 

1950 10.60 10.20 50.00 1,730.00 2,960.00 1,154.00 246.00 68.20 3.50 

1951 25.70 23.60 39.60 547.00 320.00 89.80 46.90 23.70 28.90 

1952 24.60 29.00 14.70 2.63 13.60 14.30 13.00 21.60 16.60 

1953 24.10 23.70 8.26 2.07 12.70 77.40 124.00 8.68 13.40 

1954 60.30 56.30 80.70 132.00 36.40 166.00 215.00 30.90 49.50 

1955 84.30 32.00 7.81 248.00 64.00 238.00 224.00 12.60 0.81 

1956 3.64 7.66 63.30 374.00 355.00 275.00 51.90 12.90 3.89 

1957 57.40 68.40 44.80 17.90 36.90 63.30 39.70 34.10 272.00 

1958 80.10 68.10 67.60 41.30 17.90 5.88 75.80 14.30 15.90 

1959 42.10 34.90 26.50 8.95 6.86 7.90 7.28 8.53 9.40 

1960 24.20 22.30 16.80 669.00 77.20 153.00 26.30 14.30 14.40 

1961 45.20 38.80 18.90 10.90 13.50 13.60 14.10 13.70 12.40 

1962 15.00 14.80 67.90 300.00 137.00 219.00 89.00 26.10 14.70 

1963 48.80 46.00 30.90 10.10 12.30 12.00 7.93 8.35 8.66 

1964 25.40 17.80 11.40 10.10 9.50 212.00 136.00 13.50 30.20 

1965 55.70 50.60 147.00 1,224.00 216.00 94.10 188.00 126.00 67.50 

Year January February March April May June July August September 
Gaged (October 1949 through December 2001) and estimated (January 1931 through September 1949) historic stream

in cubic feet per second, for the Sheyenne River below Baldhill Dam, N. Dak.—Continued

1966 104.00 65.60 1,067.00 623.00 278.00 184.00 172.00 209.00 63.80 

1967 72.10 151.00 165.00 972.00 474.00 49.10 31.60 18.90 17.10 

1968 43.50 46.80 42.20 143.00 130.00 225.00 28.30 17.10 18.30 

1969 69.10 200.00 166.00 1,936.00 313.00 91.30 127.00 13.70 14.10 

1970 53.20 87.60 146.00 420.00 330.00 333.00 32.50 15.20 13.20 

1971 40.50 104.00 215.00 686.00 158.00 223.00 183.00 25.20 24.50 

1972 125.00 48.10 193.00 795.00 335.00 219.00 18.20 16.80 18.60 

1973 55.20 62.70 61.50 31.50 15.50 15.20 9.83 17.80 14.70 

1974 70.40 180.00 219.00 921.00 684.00 508.00 17.00 16.30 13.40 

1975 55.50 56.40 68.30 668.00 830.00 227.00 119.00 56.30 18.60 

1976 78.10 68.30 64.30 493.00 107.00 18.00 17.70 24.10 36.10 

1977 14.60 9.20 9.94 9.27 9.07 8.53 8.63 6.72 8.09 

1978 63.00 104.00 144.00 703.00 129.00 41.80 19.20 20.30 39.10 

1979 30.80 56.40 173.00 1,796.00 1,346.00 157.00 146.00 52.70 27.80 

1980 10.40 10.90 83.10 153.00 9.32 19.40 17.40 10.10 152.00 

1981 9.10 9.61 98.20 137.00 70.20 136.00 84.60 25.70 43.00 

1982 7.93 32.30 174.00 892.00 233.00 177.00 227.00 56.90 14.20 

1983 120.00 76.40 1,236.00 659.00 203.00 219.00 117.00 41.30 77.00 

1984 78.30 64.00 257.00 912.00 351.00 114.00 33.50 37.10 41.00 

1985 28.10 11.70 96.40 142.20 117.50 77.60 23.30 44.00 23.80 

1986 140.40 197.90 166.50 391.20 307.20 51.10 66.50 60.90 28.20 

1987 124.10 78.20 969.60 1,268.00 155.80 109.50 215.40 215.60 66.80 

1988 117.90 112.40 58.20 17.70 52.00 30.60 18.40 25.40 12.00 

1989 45.80 56.20 107.40 198.30 19.80 25.40 21.70 24.90 20.00 

1990 13.30 12.20 14.80 10.00 7.35 10.10 13.30 44.90 57.20 

1991 7.78 8.54 7.96 7.93 11.70 14.90 26.70 29.00 15.80 

1992 45.70 18.40 448.50 86.20 40.00 32.30 60.50 30.90 29.70 

1993 76.30 93.90 214.90 263.70 193.30 131.40 1,272.00 1,555.00 353.10 

1994 98.00 181.60 427.70 718.70 163.00 404.90 538.50 192.10 576.80 

1995 181.60 167.20 1,567.00 1,998.00 797.90 285.90 246.80 292.50 188.30 

1996 124.80 300.10 336.90 2,969.00 953.20 294.50 248.10 107.90 19.60 

1997 168.10 172.70 187.10 3,329.00 1,540.00 192.20 224.60 82.10 45.60 

1998 66.70 147.60 490.60 560.90 174.80 150.20 62.20 26.00 38.00 

1999 108.30 193.00 772.90 1,942.00 1,141.00 691.60 509.50 336.20 256.30 

2000 151.00 41.70 59.90 194.00 192.00 1,028.00 765.00 175.00 243.00 

2001 227.00 221.00 288.00 1,724.00 692.00 489.00 351.00 378.00 61.60 

pp
Gaged (April through June 1938, August 1938 through September 1975, March through September 1995, and March through Septembe

(January 1931 through March 1938, July 1938, October 1975 through February 1995, October 1995 through February 1996, and Oc

December 2001) historic streamflow, in cubic feet per second, for the Sheyenne River at Valley City, N. Dak.

1931 9.26 37.03 86.59 161.30 57.34 79.58 21.15 14.71 12.40 

1932 18.44 15.04 158.19 389.54 97.54 86.90 40.33 20.61 14.30 

1933 11.57 11.35 293.76 283.80 119.84 46.23 26.71 12.00 8.13 

1934 7.23 9.84 46.02 141.86 38.09 17.08 9.96 6.53 6.07 

1935 6.58 11.07 84.04 126.17 72.05 63.10 73.41 92.52 23.18 

1936 11.64 10.63 37.53 218.06 135.63 37.28 15.39 5.06 5.67 

1937 5.62 3.96 25.87 138.05 69.00 69.95 24.88 15.05 14.44 

1938 8.68 9.33 66.23 45.30 26.60 8.43 13.08 8.64 0.13 

1939 0.25 0.33 67.70 114.00 21.10 14.60 1.65 0.03 0.01 

1940 0.00 0.00 0.00 172.00 62.00 8.50 0.32 1.72 0.06 

1941 0.00 0.00 68.00 953.00 117.00 132.00 59.80 18.00 44.40 

1942 4.03 5.22 26.70 737.00 239.00 163.00 55.70 49.50 45.60 

1943 9.56 20.00 470.00 904.00 187.00 407.00 131.00 39.70 8.00 

1944 3.86 4.53 15.60 109.00 74.10 161.00 62.60 74.50 100.00 

1945 10.40 12.40 448.00 168.00 91.20 79.40 26.50 25.80 12.10 

1946 10.10 5.06 412.00 381.00 70.10 36.90 46.20 46.60 20.30 

1947 15.30 8.61 231.00 630.00 87.10 95.20 35.50 12.80 1.59 

1948 8.19 4.98 32.00 2,077.00 960.00 98.20 54.50 40.50 10.50 

1949 6.25 7.20 80.70 1,254.00 188.00 103.00 100.00 3.03 1.23 

1950 11.00 9.16 77.10 1,746.00 2,975.00 1,231.00 254.00 66.40 2.29 

1951 25.90 24.00 73.20 556.00 325.00 95.30 47.20 22.30 27.50 

1952 23.40 28.80 49.20 32.40 19.30 22.00 21.10 24.20 21.10 

1953 23.10 36.30 18.20 3.19 22.20 112.00 133.00 9.22 12.30 

1954 58.60 62.60 78.10 138.00 40.60 175.00 234.00 33.60 50.80 

1955 84.30 33.40 23.30 253.00 69.30 256.00 230.00 17.10 2.29 

1956 2.66 7.17 67.00 357.00 366.00 287.00 54.10 14.50 2.61 

1957 54.70 63.40 45.40 17.00 33.90 64.80 46.50 43.50 289.00 

1958 77.80 73.10 66.10 50.10 20.90 8.49 76.30 13.20 14.50 

1959 38.90 33.70 29.00 9.97 9.77 29.90 14.10 9.84 9.93 

1960 21.40 20.10 75.30 696.00 82.00 160.00 26.00 20.70 15.80 

1961 43.30 36.50 31.10 13.70 13.10 14.30 15.20 11.70 15.90 

1962 13.80 13.80 123.00 316.00 148.00 245.00 172.00 36.30 20.60 

1963 50.20 48.70 37.20 13.40 13.20 18.80 10.20 7.94 11.00 

1964 23.50 15.80 10.00 25.50 11.90 200.00 138.00 16.40 28.10 

1965 53.90 48.10 150.00 1,411.00 226.00 109.00 208.00 145.00 78.30 

Year January February March April May June July August September 
Gaged (April through June 1938, August 1938 through September 1975, March through September 1995, and March through Septembe

(January 1931 through March 1938, July 1938, October 1975 through February 1995, October 1995 through February 1996, and Oc

December 2001) historic streamflow, in cubic feet per second, for the Sheyenne River at Valley City, N. Dak.—Contin

1966 102.00 76.30 1,229.00 708.00 307.00 205.00 168.00 215.00 67.30 

1967 68.10 154.00 207.00 1,012.00 512.00 56.80 27.70 17.50 17.80 

1968 40.50 42.10 65.50 158.00 145.00 266.00 31.70 17.40 19.00 

1969 63.10 208.00 186.00 2,091.00 334.00 97.50 156.00 16.90 18.10 

1970 53.50 85.00 143.00 473.00 319.00 359.00 33.30 14.20 11.30 

1971 37.30 120.00 263.00 691.00 168.00 234.00 192.00 25.90 25.20 

1972 119.00 45.20 269.00 876.00 320.00 191.00 25.10 20.50 22.60 

1973 55.30 64.00 103.00 36.90 16.90 14.70 10.50 18.90 19.10 

1974 63.40 199.00 245.00 1,008.00 727.00 508.00 18.30 18.10 13.00 

1975 54.50 58.60 72.60 759.50 915.10 254.80 167.50 57.90 20.30 

1976 89.90 78.62 74.75 573.14 126.68 21.31 20.96 28.53 42.74 

1977 16.81 10.59 11.56 10.78 10.74 10.10 10.22 7.96 9.58 

1978 72.52 119.71 167.41 817.27 152.72 49.49 22.73 24.03 46.29 

1979 35.45 64.92 201.12 2,087.94 1,593.55 185.87 172.85 62.39 32.91 

1980 11.97 12.55 96.61 177.87 11.03 22.97 20.60 11.96 179.95 

1981 10.47 11.06 114.16 159.27 83.11 161.01 100.16 30.43 50.91 

1982 9.13 37.18 202.28 1,037.00 275.85 209.55 268.75 67.36 16.81 

1983 138.13 87.94 1,436.92 766.12 240.33 259.28 138.52 48.90 91.16 

1984 90.13 73.67 298.78 1,060.25 415.55 134.97 39.66 43.92 48.54 

1985 32.35 13.47 112.07 165.32 139.11 91.87 27.59 52.09 28.18 

1986 161.61 227.80 193.57 454.79 363.70 60.50 78.73 72.10 33.39 

1987 142.85 90.01 1,127.21 1,474.12 184.45 129.64 255.01 255.25 79.09 

1988 135.71 129.38 67.66 20.58 61.56 36.23 21.78 30.07 14.21 

1989 52.72 64.69 124.86 230.53 23.44 30.07 25.69 29.48 23.68 

1990 15.31 14.04 17.21 11.63 8.70 11.96 15.75 53.16 67.72 

1991 8.96 9.83 9.25 9.22 13.85 17.64 31.61 34.33 18.71 

1992 52.60 21.18 521.40 100.21 47.36 38.24 71.63 36.58 35.16 

1993 87.83 108.09 249.83 306.57 228.85 155.57 1,505.94 1,840.98 418.04 

1994 112.80 209.03 497.22 835.53 192.98 479.37 637.54 227.43 682.88 

1995 209.03 192.46 1,771.00 2,214.00 866.40 280.10 246.10 290.80 196.00 

1996 143.65 345.43 520.00 2,982.00 1,116.00 299.00 249.50 111.00 27.70 

1997 193.49 198.79 217.51 3,870.14 1,823.23 227.55 265.91 97.20 53.99 

1998 76.78 169.90 570.35 652.08 206.95 177.82 73.64 30.78 44.99 

1999 124.66 222.16 898.54 2,257.68 1,350.84 818.79 603.20 398.03 303.44 

2000 173.81 48.00 69.64 225.54 227.31 1,217.06 905.69 207.18 287.69 

2001 261.29 254.39 334.82 2,004.24 819.27 578.93 415.55 447.52 72.93 

pp
Gaged (October 1956 through December 2001) and estimated (January 1931 through September 1956) historic stream

in cubic feet per second, for the Sheyenne River at Lisbon, N. Dak.

1931 10.66 42.62 100.67 187.53 67.89 94.22 25.04 17.42 14.69 

1932 21.23 17.32 183.92 452.89 115.48 102.88 47.75 24.40 16.93 

1933 13.32 13.07 341.54 329.95 141.89 54.73 31.62 14.20 9.63 

1934 8.33 11.32 53.50 164.93 45.10 20.22 11.80 7.74 7.18 

1935 7.58 12.74 97.71 146.69 85.31 74.72 86.91 109.55 27.45 

1936 13.40 12.24 43.64 253.52 160.59 44.14 18.22 5.99 6.72 

1937 6.47 4.55 30.08 160.50 81.70 82.82 29.45 17.82 17.09 

1938 9.99 10.74 77.00 52.66 31.49 9.98 15.49 10.23 0.15 

1939 0.29 0.38 78.70 132.53 24.98 17.29 1.95 0.04 0.01 

1940 0.00 0.00 0.00 199.96 73.40 10.06 0.38 2.04 0.07 

1941 0.00 0.00 79.05 1,107.91 138.52 156.28 70.80 21.31 52.57 

1942 4.64 6.01 31.04 856.80 282.96 192.98 65.94 58.60 53.99 

1943 11.00 23.02 546.40 1,050.95 221.39 481.85 155.09 47.00 9.47 

1944 4.44 5.21 18.14 126.72 87.73 190.61 74.11 88.20 118.39 

1945 11.97 14.27 520.82 195.31 107.97 94.00 31.37 30.55 14.33 

1946 11.63 5.82 478.97 442.93 82.99 43.69 54.70 55.17 24.03 

1947 17.61 9.91 268.55 732.41 103.12 112.71 42.03 15.15 1.88 

1948 9.43 5.73 37.20 2,414.62 1,136.56 116.26 64.52 47.95 12.43 

1949 7.19 8.29 93.82 1,457.84 222.58 121.94 118.39 3.59 1.46 

1950 12.66 10.54 89.63 2,029.82 3,522.14 1,457.40 300.71 78.61 2.71 

1951 29.81 27.63 85.10 646.38 384.77 112.83 55.88 26.40 32.56 

1952 26.94 33.15 57.20 37.67 22.85 26.05 24.98 28.65 24.98 

1953 26.59 41.78 21.16 3.71 26.28 132.60 157.46 10.92 14.56 

1954 67.45 72.06 90.80 160.43 48.07 207.18 277.04 39.78 60.14 

1955 97.03 38.45 27.09 294.13 82.05 303.08 272.30 20.25 2.71 

1956 3.06 8.25 77.89 415.03 433.31 339.78 64.05 17.17 3.09 

1957 50.60 49.80 68.20 43.10 39.90 65.20 51.50 49.30 323.10 

1958 70.70 95.60 116.00 98.80 38.40 27.60 72.30 17.20 12.90 

1959 36.00 33.50 48.40 33.20 17.50 40.10 27.70 10.70 5.25 

1960 19.50 21.90 175.30 838.40 100.00 171.80 35.70 21.00 13.90 

1961 43.00 39.40 108.30 29.00 22.10 14.80 8.60 6.54 18.70 

1962 13.20 14.80 246.60 469.40 210.60 277.40 657.00 91.60 39.90 

1963 49.50 52.00 68.10 63.80 34.90 41.50 17.40 13.10 12.20 

1964 25.80 26.20 19.80 78.90 30.40 159.20 203.40 22.90 33.70 

1965 46.90 42.10 125.90 1,634.00 306.90 163.20 210.60 185.00 66.80 

Year January February March April May June July August September 
Gaged (October 1956 through December 2001) and estimated (January 1931 through September 1956) historic stream

in cubic feet per second, for the Sheyenne River at Lisbon, N. Dak.—Continued

1966 103.70 76.80 1,304.00 991.40 358.90 217.90 149.00 219.60 71.90 

1967 67.60 129.60 345.10 958.90 634.20 103.50 33.50 17.70 16.10 

1968 37.40 41.30 128.10 168.30 163.50 329.20 47.70 17.50 21.80 

1969 41.70 202.30 220.20 2,548.00 442.90 140.40 213.30 21.50 25.90 

1970 65.50 100.90 231.10 523.10 401.70 446.50 68.20 17.70 17.20 

1971 39.60 79.10 356.50 732.50 222.40 244.30 228.80 30.40 22.40 

1972 138.20 78.60 363.50 927.80 289.40 235.50 39.80 24.90 19.20 

1973 53.50 70.40 165.00 62.20 27.20 21.70 6.07 11.60 25.00 

1974 63.70 177.90 283.80 1,006.00 685.70 555.40 20.10 16.60 10.10 

1975 54.80 56.20 81.60 736.60 970.50 512.90 700.20 95.30 27.10 

1976 93.70 107.00 169.30 601.50 172.30 51.60 21.30 10.70 29.90 

1977 19.70 17.00 51.90 36.90 67.70 19.70 18.50 7.44 24.60 

1978 55.30 98.80 426.80 806.50 180.50 79.20 42.20 22.20 61.50 

1979 31.10 56.50 225.00 1,788.00 1,989.00 207.40 151.70 74.30 37.90 

1980 15.90 15.90 209.40 246.90 18.90 34.80 28.40 15.80 158.90 

1981 15.80 29.10 83.60 152.70 65.20 113.10 127.40 29.10 26.40 

1982 14.00 15.60 189.90 1,244.00 297.50 171.30 184.60 72.70 13.70 

1983 126.90 76.40 1,214.00 788.50 208.70 267.90 218.40 20.90 88.60 

1984 109.40 76.00 415.70 1,092.00 382.00 109.80 35.00 16.40 32.50 

1985 40.70 29.00 158.00 171.60 141.70 81.40 22.20 40.20 25.10 

1986 139.90 193.70 354.30 509.80 490.00 81.80 72.40 90.20 34.00 

1987 132.10 74.40 1,328.00 1,624.00 200.80 148.80 127.90 262.90 61.80 

1988 118.30 139.40 145.60 38.00 54.10 34.60 6.52 18.20 13.50 

1989 36.30 46.30 207.50 380.50 31.80 46.10 19.30 27.10 27.10 

1990 21.50 16.80 30.90 28.70 18.60 60.30 20.80 23.90 55.80 

1991 8.15 10.70 34.30 20.30 51.20 39.20 56.90 27.50 23.10 

1992 70.10 63.60 585.10 134.40 70.60 56.10 97.10 46.10 52.20 

1993 80.00 102.50 325.10 444.20 158.30 249.40 1,424.00 1,945.00 377.90 

1994 125.70 202.10 565.50 988.30 304.40 354.80 624.40 276.00 560.80 

1995 203.90 166.80 1,525.00 2,540.00 907.60 326.60 273.80 275.60 205.10 

1996 151.50 412.80 729.20 2,848.00 1,439.00 393.80 232.90 156.80 33.80 

1997 190.30 195.70 250.60 4,181.00 2,394.00 439.10 378.20 129.10 79.40 

1998 113.60 204.30 869.00 913.50 308.70 275.50 169.70 56.00 44.10 

1999 98.80 129.60 931.60 2,324.00 1,461.00 749.50 490.30 281.90 344.60 

2000 182.00 116.00 161.00 221.00 218.00 970.00 819.00 219.00 311.00 

2001 217.00 245.00 205.00 1,991.00 707.00 382.00 387.00 391.00 86.50 

pp
Gaged (August 1949 through December 2001) and estimated (January 1931 through July 1949) historic streamflow

in cubic feet per second, for the Sheyenne River near Kindred, N. Dak.

1931 12.55 50.20 119.93 223.42 82.62 114.65 30.47 21.19 17.87 

1932 25.00 20.39 219.11 539.55 140.52 125.19 58.10 29.69 20.61 

1933 15.69 15.39 406.89 393.09 172.65 66.60 38.48 17.28 11.72 

1934 9.80 13.33 63.74 196.50 54.88 24.61 14.36 9.41 8.74 

1935 8.92 15.00 116.41 174.76 103.81 90.92 105.76 133.30 33.40 

1936 15.78 14.41 51.99 302.04 195.41 53.71 22.17 7.29 8.17 

1937 7.62 5.36 35.83 191.21 99.41 100.78 35.84 21.68 20.80 

1938 11.77 12.65 91.74 113.86 69.14 38.48 18.85 40.14 16.41 

1939 11.18 9.90 102.80 253.38 60.25 54.30 26.07 11.04 8.85 

1940 6.25 5.59 6.62 205.70 118.55 43.07 14.45 10.74 8.46 

1941 12.35 12.35 31.62 1,016.25 225.00 213.57 110.45 47.07 51.76 

1942 23.73 22.16 45.43 650.38 396.18 291.30 107.32 75.39 106.64 

1943 32.55 35.79 263.56 1,621.30 362.40 750.87 265.43 128.90 61.42 

1944 26.86 31.18 38.18 217.54 255.37 244.82 178.12 161.03 181.05 

1945 43.63 46.08 541.32 446.74 183.98 156.35 77.05 61.72 36.82 

1946 28.24 24.80 325.53 673.10 147.85 112.21 86.52 72.46 41.02 

1947 37.26 39.61 70.00 1,249.27 232.91 225.78 111.42 56.44 31.44 

1948 31.67 29.41 38.77 1,419.62 1,589.82 265.82 146.38 100.97 53.22 

1949 27.35 21.86 116.21 1,132.76 506.92 189.45 135.25 93.40 32.00 

1950 29.70 28.90 200.60 1,575.00 3,053.00 1,938.00 401.40 174.40 57.40 

1951 50.00 50.00 87.30 682.70 530.50 184.40 127.00 59.00 71.20 

1952 45.50 59.00 62.10 787.40 116.80 73.40 75.90 38.90 41.20 

1953 34.70 45.60 128.30 99.30 138.90 288.70 267.80 59.90 33.00 

1954 67.10 111.40 132.70 222.70 100.80 112.90 336.60 73.40 69.40 

1955 80.80 49.30 71.00 350.80 107.30 272.30 291.70 110.70 26.10 

1956 19.70 21.70 35.10 255.40 611.90 298.80 98.30 49.30 26.00 

1957 55.60 57.70 112.80 116.90 88.40 98.80 93.90 74.10 324.70 

1958 96.50 89.00 209.10 176.80 84.70 73.70 104.60 43.70 30.50 

1959 41.10 33.80 66.00 97.40 53.70 59.30 62.10 33.10 25.10 

1960 38.00 36.10 69.00 1,060.00 181.70 212.60 84.70 36.50 41.30 

1961 61.90 61.20 143.50 78.90 73.00 48.40 30.00 25.20 30.50 

1962 25.20 31.00 145.80 728.50 306.40 394.50 1,065.00 274.10 111.80 

1963 66.00 58.00 121.00 209.10 117.10 134.00 56.70 45.60 38.10 

1964 30.50 43.20 51.20 165.50 86.80 124.80 276.50 49.50 55.50 

1965 60.60 62.00 76.90 1,508.00 475.10 270.20 202.20 261.20 99.30 

Year January February March April May June July August September 
Gaged (August 1949 through December 2001) and estimated (January 1931 through July 1949) historic streamflow

in cubic feet per second, for the Sheyenne River near Kindred, N. Dak.—Continued

1966 113.10 100.90 1,121.00 1,328.00 463.70 301.10 192.20 274.10 103.60 

1967 91.50 87.50 420.30 915.80 743.90 224.20 81.20 38.40 34.70 

1968 53.90 50.00 161.40 247.40 236.00 340.30 99.90 43.40 41.50 

1969 63.00 179.50 262.90 2,464.00 965.10 232.60 306.40 75.40 57.00 

1970 62.30 87.70 217.60 592.30 422.10 520.30 166.40 51.50 41.50 

1971 57.40 62.50 393.50 662.70 424.70 304.90 316.10 64.30 66.90 

1972 165.20 108.80 446.60 963.00 468.30 364.80 121.50 75.00 54.40 

1973 58.90 94.30 308.60 156.00 72.50 58.00 32.30 30.70 44.60 

1974 49.90 123.60 309.80 937.70 845.30 680.10 73.30 54.20 34.80 

1975 71.90 67.20 97.40 762.10 1,191.00 634.20 1,466.00 190.80 113.70 

1976 115.90 221.40 315.40 625.30 281.90 97.60 60.00 35.00 36.90 

1977 38.00 41.60 109.70 103.70 102.20 56.90 39.90 22.50 40.90 

1978 52.90 100.80 415.70 879.60 275.30 144.20 94.90 42.10 123.50 

1979 44.60 51.20 148.60 1,817.00 2,306.00 355.80 218.00 153.40 81.30 

1980 42.60 42.70 193.40 380.80 61.50 88.30 59.80 44.90 142.70 

1981 36.90 49.40 120.30 210.70 105.40 133.10 178.20 57.70 35.70 

1982 27.20 31.50 144.80 1,255.00 371.30 240.00 190.00 111.10 32.90 

1983 138.60 86.00 1,165.00 931.40 287.00 266.60 311.90 45.20 103.70 

1984 138.20 96.30 397.90 1,203.00 456.30 207.70 84.60 29.50 54.90 

1985 58.50 38.20 212.70 224.60 206.80 143.60 62.70 51.50 59.70 

1986 163.40 187.50 512.20 647.10 689.20 167.20 113.40 132.60 90.50 

1987 170.10 115.90 1,256.00 1,796.00 303.60 226.10 93.60 313.70 85.70 

1988 125.00 140.20 277.40 113.80 68.80 52.80 26.70 17.50 29.40 

1989 37.60 54.80 174.70 711.90 86.00 74.70 38.00 35.50 42.70 

1990 24.90 32.80 91.80 107.00 53.60 95.30 40.60 26.60 55.50 

1991 17.50 26.60 65.50 71.70 85.80 69.10 65.10 30.10 45.70 

1992 59.70 61.50 545.60 201.20 84.00 90.20 124.10 73.80 83.20 

1993 73.70 106.80 253.40 681.90 221.30 316.60 1,250.00 2,231.00 483.20 

1994 164.80 214.50 614.40 1,203.00 460.30 374.30 759.80 252.70 467.30 

1995 204.80 196.90 1,182.00 2,964.00 1,197.00 511.00 426.60 331.10 275.20 

1996 126.40 316.90 965.00 2,799.00 2,171.00 684.40 296.40 268.80 89.40 

1997 188.40 204.20 210.00 3,957.00 2,907.00 533.70 453.00 179.50 113.90 

1998 158.90 198.60 1,134.00 1,065.00 606.20 569.00 454.60 123.80 119.80 

1999 146.60 167.00 1,040.00 2,448.00 1,631.00 886.80 604.40 352.60 528.10 

2000 223.00 120.00 371.00 348.00 328.00 842.00 1,090.00 312.00 435.00 

2001 242.00 287.00 399.00 2,347.00 825.00 479.00 426.00 431.00 115.00 

pp
Gaged (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Sheyenne River at West Fa

1931 12.80 51.20 122.50 228.20 84.60 117.40 31.20 21.70 18.30 

1932 25.50 20.80 223.80 551.10 143.90 128.20 59.50 30.40 21.10 

1933 16.00 15.70 415.60 401.50 176.80 68.20 39.40 17.70 12.00 

1934 10.00 13.60 65.10 200.70 56.20 25.20 14.70 9.64 8.95 

1935 9.10 15.30 118.90 178.50 106.30 93.10 108.30 136.50 34.20 

1936 16.10 14.70 53.10 308.50 200.10 55.00 22.70 7.46 8.37 

1937 7.77 5.47 36.60 195.30 101.80 103.20 36.70 22.20 21.30 

1938 12.00 12.90 93.70 116.30 70.80 39.40 19.30 41.10 16.80 

1939 11.40 10.10 105.00 258.80 61.70 55.60 26.70 11.30 9.06 

1940 6.37 5.70 6.76 210.10 121.40 44.10 14.80 11.00 8.66 

1941 12.60 12.60 32.30 1,038.00 230.40 218.70 113.10 48.20 53.00 

1942 24.20 22.60 46.40 664.30 405.70 298.30 109.90 77.20 109.20 

1943 33.20 36.50 269.20 1,656.00 371.10 768.90 271.80 132.00 62.90 

1944 27.40 31.80 39.00 222.20 261.50 250.70 182.40 164.90 185.40 

1945 44.50 47.00 552.90 456.30 188.40 160.10 78.90 63.20 37.70 

1946 28.80 25.30 332.50 687.50 151.40 114.90 88.60 74.20 42.00 

1947 38.00 40.40 71.50 1,276.00 238.50 231.20 114.10 57.80 32.20 

1948 32.30 30.00 39.60 1,450.00 1,628.00 272.20 149.90 103.40 54.50 

1949 27.90 22.30 118.70 1,157.00 519.10 194.00 138.50 85.60 27.30 

1950 29.40 27.50 130.70 1,542.00 2,654.00 1,785.00 444.00 189.00 61.90 

1951 50.00 50.00 67.70 708.90 553.50 191.80 132.50 61.80 68.80 

1952 45.50 57.90 68.00 970.50 124.80 74.80 223.80 43.50 40.10 

1953 33.50 43.00 129.30 108.10 157.50 474.80 285.90 65.60 34.20 

1954 72.90 111.70 143.90 240.10 116.80 100.30 341.60 81.40 71.30 

1955 81.00 50.60 58.10 376.30 110.40 281.50 294.90 134.40 31.70 

1956 18.90 18.30 34.00 271.70 617.40 304.70 123.70 53.50 28.70 

1957 40.00 42.10 120.00 143.40 96.70 114.90 103.80 80.50 290.30 

1958 110.60 95.40 200.90 194.50 97.60 78.40 131.30 58.70 39.10 

1959 41.90 36.00 73.80 121.20 54.00 92.90 77.80 33.30 33.50 

1960 40.20 43.40 58.40 1,072.00 191.10 206.90 85.30 35.70 46.20 

1961 69.10 63.40 148.20 95.00 83.30 47.60 32.50 23.70 30.20 

1962 24.40 35.30 65.40 773.20 318.20 419.20 1,097.00 273.90 103.30 

1963 68.40 60.90 108.00 232.00 124.30 126.30 60.40 46.80 37.90 

1964 31.70 49.50 55.60 197.90 97.50 106.80 281.20 56.30 57.90 

1965 64.80 66.60 75.30 1,409.00 583.50 282.00 180.60 276.60 100.70 

Year January February March April May June July August September 
Gaged (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Sheyenne River at West Fargo, N

1966 118.20 100.40 887.20 1,485.00 523.40 329.80 216.60 276.70 107.70 

1967 95.60 94.70 343.90 992.30 797.40 272.50 101.00 53.30 45.10 

1968 55.60 57.80 162.70 273.50 220.60 343.40 115.30 46.90 47.30 

1969 67.20 174.80 284.50 1,789.00 1,124.00 282.10 324.10 90.50 60.70 

1970 69.40 86.60 197.30 632.00 504.60 598.30 204.70 58.30 40.60 

1971 55.60 62.60 358.40 630.80 520.80 313.40 330.00 68.20 68.70 

1972 152.00 108.50 409.50 1,017.00 512.90 443.20 114.00 83.20 54.80 

1973 59.10 93.90 267.70 154.90 74.60 61.40 34.40 32.30 48.10 

1974 41.70 123.10 313.30 944.50 860.50 747.00 103.80 63.50 43.10 

1975 69.30 75.40 114.50 734.70 1,175.00 589.50 1,358.00 214.10 107.90 

1976 107.70 210.70 329.70 658.40 331.00 108.20 61.40 29.70 7.43 

1977 8.40 16.40 83.70 110.70 117.60 40.20 41.40 22.10 36.70 

1978 46.40 92.00 425.30 1,102.00 315.20 144.20 104.00 47.50 121.70 

1979 43.30 50.30 120.10 1,591.00 2,066.00 403.30 208.90 164.50 83.30 

1980 45.40 50.10 147.20 437.50 65.90 90.10 64.80 43.80 138.70 

1981 38.00 46.00 111.70 230.50 112.30 140.80 186.50 61.80 35.50 

1982 24.20 31.20 134.80 1,267.00 388.40 250.90 191.30 117.10 37.10 

1983 147.40 91.20 1,067.00 1,085.00 299.70 312.10 420.00 60.10 96.50 

1984 141.00 113.20 275.20 1,385.00 549.70 263.00 94.20 29.10 47.40 

1985 72.40 51.00 191.60 274.80 226.70 142.00 62.30 51.20 68.30 

1986 161.10 167.10 486.40 719.70 776.20 190.20 139.20 153.60 115.80 

1987 175.90 117.00 1,123.00 1,757.00 361.80 251.60 82.80 355.00 97.30 

1988 130.20 44.50 278.70 152.10 91.40 65.40 26.80 21.10 27.40 

1989 42.50 49.90 112.40 744.40 98.90 86.70 41.00 37.70 53.00 

1990 22.30 25.90 69.00 91.20 54.20 80.70 43.00 22.10 51.40 

1991 24.10 32.50 68.50 65.20 64.30 53.10 63.80 27.30 34.20 

1992 69.90 69.20 505.90 223.20 110.20 104.90 106.20 56.50 59.70 

1993 69.90 101.90 247.50 781.90 258.50 342.90 1,272.00 2,218.00 532.30 

1994 166.10 222.70 691.60 1,376.00 479.50 386.10 1,058.00 310.60 495.10 

1995 237.60 200.10 1,184.00 2,922.00 1,216.00 561.50 439.40 347.10 291.50 

1996 131.10 287.10 891.30 2,371.00 2,222.00 646.60 304.30 340.10 123.10 

1997 266.90 285.00 312.70 3,312.00 3,235.00 617.10 523.10 244.80 152.20 

1998 169.10 199.10 1,176.00 1,058.00 673.60 647.70 595.10 143.70 103.90 

1999 154.70 170.80 1,184.00 2,591.00 1,765.00 1,032.00 606.50 368.00 608.60 

2000 240.00 139.00 484.00 377.00 363.00 1,050.00 1,373.00 397.00 573.00 

2001 276.00 320.00 459.00 2,586.00 1,120.00 642.00 546.00 514.00 140.00 

pp
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Maple River at th

1931 0.01 1.58 10.23 30.37 5.28 11.58 0.76 1.07 0.24 

1932 0.09 19.80 333.85 217.86 33.16 13.41 2.82 0.21 0.28 

1933 0.02 0.13 139.22 104.59 21.01 4.68 1.22 0.16 0.08 

1934 0.01 0.10 2.65 36.75 3.21 2.69 0.16 1.18 2.37 

1935 0.00 0.21 77.00 35.64 24.86 7.87 9.52 0.79 0.29 

1936 0.02 0.14 0.78 177.76 18.23 3.28 0.40 0.06 0.06 

1937 0.00 0.14 0.36 50.21 10.31 9.35 1.06 3.27 1.67 

1938 0.01 0.06 36.53 24.14 7.62 1.88 0.29 1.01 0.15 

1939 0.01 0.05 111.96 41.11 1.86 3.33 0.55 0.06 0.04 

1940 0.00 0.01 0.02 148.81 12.22 2.27 0.16 4.19 0.01 

1941 0.01 0.07 24.78 437.44 18.11 32.66 10.39 1.02 2.15 

1942 0.07 0.28 8.64 232.85 88.11 54.75 9.81 3.10 2.33 

1943 0.17 0.22 258.75 119.03 39.52 265.07 61.60 1.77 0.34 

1944 0.10 0.07 1.67 63.39 60.90 25.09 13.95 13.95 10.76 

1945 0.35 0.00 99.96 92.67 27.26 17.85 3.89 3.65 0.51 

1946 0.11 0.03 124.20 74.86 9.54 10.14 4.77 0.05 0.14 

1947 0.14 0.00 108.01 1,014.20 64.14 382.04 19.36 1.10 4.37 

1948 2.75 0.35 6.79 555.04 55.49 21.09 14.93 9.89 1.68 

1949 0.04 0.00 9.61 224.27 16.66 8.73 7.85 0.25 0.00 

1950 0.04 0.00 92.35 993.93 670.20 82.96 70.52 6.99 2.66 

1951 0.76 0.21 7.90 251.08 17.41 12.55 12.33 6.51 11.68 

1952 1.55 0.38 0.26 971.62 27.80 7.21 52.68 0.60 0.01 

1953 1.52 1.57 26.81 22.52 95.73 775.01 68.58 55.27 1.93 

1954 2.65 3.81 41.19 39.79 15.25 7.05 13.95 2.77 3.41 

1955 1.58 0.27 0.20 126.45 6.81 14.49 68.36 10.24 0.30 

1956 0.02 0.00 0.00 122.38 29.53 14.71 3.14 0.53 0.26 

1957 0.53 0.16 7.62 29.07 14.60 58.73 14.93 16.44 27.58 

1958 2.51 0.63 34.11 80.23 18.28 16.98 45.86 3.34 5.53 

1959 0.00 0.00 10.94 14.91 9.03 122.44 22.72 1.19 0.00 

1960 0.88 0.43 75.40 386.33 17.09 6.30 2.17 0.00 0.00 

1961 0.00 0.00 32.28 19.31 18.71 1.85 0.00 0.00 4.31 

1962 0.47 0.18 0.98 743.70 229.96 184.32 823.04 289.02 71.17 

1963 0.82 0.00 16.62 171.29 35.91 37.75 13.63 7.21 6.09 

1964 0.11 0.11 6.30 118.84 42.29 53.22 18.50 9.36 4.33 

1965 1.28 0.60 0.32 1,232.35 100.05 45.86 69.88 62.95 43.37 

Year January February March April May June July August September 
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Maple River at the mout

1966 3.28 1.16 1,115.45 489.83 161.71 46.84 24.45 22.82 9.36 

1967 0.87 0.91 84.41 406.49 182.48 31.15 7.08 1.32 0.70 

1968 0.29 0.18 49.98 65.96 33.32 125.69 44.56 12.76 6.67 

1969 0.05 0.00 0.00 1,831.91 163.87 38.51 403.89 38.40 23.80 

1970 4.04 2.27 44.30 560.19 463.49 516.93 35.59 7.63 29.64 

1971 0.52 0.00 221.48 139.22 29.75 41.97 59.17 6.27 29.96 

1972 3.81 2.07 512.68 291.63 405.41 117.25 45.11 56.35 31.26 

1973 4.59 5.18 431.70 85.70 25.64 8.75 1.13 2.09 13.74 

1974 0.24 0.06 0.35 598.27 185.72 53.22 14.60 17.31 7.72 

1975 1.24 0.00 1.01 1,399.67 354.35 373.71 2,568.95 54.41 29.42 

1976 3.94 4.47 285.24 210.84 28.32 10.11 3.01 0.04 0.02 

1977 0.00 0.21 1.89 20.80 13.03 1.95 1.35 0.10 1.63 

1978 0.41 1.70 374.70 765.07 85.46 16.31 8.77 1.06 4.92 

1979 0.34 1.69 2.69 2,054.17 388.41 90.48 36.11 14.81 2.79 

1980 0.38 4.17 59.69 198.67 13.09 7.45 3.35 1.20 1.89 

1981 0.23 4.29 9.29 63.44 10.30 15.68 28.69 7.60 2.36 

1982 0.07 3.66 89.66 660.25 71.49 41.05 30.20 1.31 0.30 

1983 9.17 7.36 531.45 211.51 64.24 59.04 148.99 29.97 47.37 

1984 8.14 6.43 510.35 348.59 89.97 44.39 7.17 0.03 1.36 

1985 1.36 2.01 430.58 77.33 47.36 15.90 3.10 18.98 0.63 

1986 11.65 4.73 494.10 239.86 214.59 25.87 15.85 6.90 4.43 

1987 14.75 6.18 1,248.39 823.04 151.28 41.23 5.52 189.78 53.99 

1988 6.57 13.37 436.80 226.15 43.99 4.37 0.56 0.61 0.40 

1989 0.32 3.63 5.87 640.32 58.75 6.99 1.33 1.06 1.17 

1990 0.05 0.96 2.17 27.19 13.98 6.21 1.46 3.75 1.61 

1991 0.07 2.50 6.60 27.08 87.24 44.11 3.26 0.41 0.67 

1992 1.23 0.15 337.43 33.02 16.12 9.61 9.15 13.43 18.12 

1993 1.23 4.73 185.26 205.31 49.44 69.06 1,411.83 670.44 241.34 

1994 12.65 16.51 721.30 227.95 166.68 84.15 971.46 270.02 409.25 

1995 33.15 17.04 1,020.53 743.17 325.04 49.97 244.56 51.60 55.81 

1996 3.43 1.46 538.20 1,499.42 392.10 96.16 20.23 14.28 42.18 

1997 2.23 0.62 3.29 3,170.44 646.40 179.77 303.08 32.13 41.75 

1998 13.35 307.90 1,475.82 526.62 408.65 238.51 236.13 40.13 15.90 

1999 22.10 19.64 1,018.60 1,228.06 1,119.52 101.89 93.89 44.02 433.86 

2000 14.31 47.94 465.48 151.23 62.84 937.80 403.46 20.98 86.10 

2001 16.01 14.52 194.13 1,945.60 327.74 241.21 85.02 61.65 56.79 

pp
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Rush River at the 

1931 0.00 0.17 9.44 9.23 2.16 1.49 0.05 0.02 0.02 

1932 0.03 1.98 24.99 36.29 5.16 0.36 0.02 0.02 0.02 

1933 0.00 0.00 67.96 22.43 5.24 0.21 0.02 0.02 0.02 

1934 0.03 0.06 3.40 7.56 1.31 0.08 0.00 0.00 0.02 

1935 0.02 0.06 8.99 4.67 3.85 0.64 0.47 0.65 0.02 

1936 0.00 0.00 2.44 28.82 2.80 0.11 0.02 0.00 0.00 

1937 0.02 0.00 1.33 2.22 1.57 0.75 0.05 0.08 0.07 

1938 0.00 0.00 6.12 0.92 1.16 2.36 0.08 0.05 0.02 

1939 0.02 0.00 7.36 5.49 0.28 0.13 0.02 0.00 0.00 

1940 0.00 0.00 0.09 23.56 1.87 0.13 0.02 0.03 0.02 

1941 0.02 0.03 11.67 79.93 2.78 1.26 0.03 0.07 0.10 

1942 0.00 0.00 5.65 39.13 13.91 12.73 0.38 0.18 7.35 

1943 0.03 0.02 33.69 18.30 6.17 50.79 19.87 0.61 0.51 

1944 0.02 0.03 1.49 9.70 3.26 19.76 75.55 1.03 90.82 

1945 0.08 0.06 107.82 5.94 3.55 5.50 0.28 0.11 0.75 

1946 0.05 0.02 47.40 7.61 3.16 2.42 23.65 0.00 0.00 

1947 0.00 0.00 47.65 270.68 12.82 63.51 2.50 0.00 0.00 

1948 0.15 0.00 0.00 214.03 9.00 2.46 0.83 0.19 0.00 

1949 0.00 0.00 23.59 63.01 4.22 1.78 3.24 0.16 0.00 

1950 0.00 0.00 38.34 316.15 133.07 27.99 4.26 0.04 0.00 

1951 0.00 0.00 46.25 43.77 3.60 5.01 1.03 0.00 0.43 

1952 0.00 0.00 0.00 118.11 2.75 0.14 1.85 0.01 0.00 

1953 0.00 0.00 8.23 3.46 9.26 80.04 13.26 1.49 0.00 

1954 0.00 0.24 9.27 14.11 3.42 2.88 0.06 0.00 0.00 

1955 0.00 0.00 9.51 17.85 0.19 2.26 0.00 2.83 0.00 

1956 0.00 0.00 0.00 40.04 4.57 14.42 0.11 0.00 0.00 

1957 0.00 0.00 5.85 2.67 3.55 27.17 10.88 4.32 2.83 

1958 0.00 1.78 2.93 5.28 3.06 5.06 15.91 0.00 0.00 

1959 0.00 0.00 25.30 2.24 2.01 7.37 0.31 0.00 0.00 

1960 0.00 0.00 42.68 76.05 4.24 1.56 18.82 0.01 0.00 

1961 0.00 0.00 11.70 4.56 3.52 0.25 0.00 0.00 0.00 

1962 0.00 0.00 17.54 144.81 27.50 13.21 63.18 4.52 2.46 

1963 0.00 0.00 3.72 15.83 5.60 6.33 0.04 0.00 0.00 

1964 0.00 0.00 0.00 33.83 7.99 16.69 0.70 0.05 0.17 

1965 0.00 0.00 0.00 169.02 24.88 7.35 9.79 0.17 0.97 

Year January February March April May June July August September 
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Rush River at the mouth

1966 0.00 0.00 91.42 74.81 23.08 7.53 3.99 3.54 0.30 

1967 0.00 0.00 29.49 78.07 16.09 4.48 1.92 0.00 0.00 

1968 0.00 0.00 15.83 15.13 10.98 50.58 2.98 0.00 0.00 

1969 0.00 0.00 0.00 369.70 13.78 8.90 37.15 1.12 0.55 

1970 0.05 0.01 50.13 174.76 39.77 51.23 2.50 0.06 0.77 

1971 0.00 0.00 31.82 28.56 11.39 4.30 0.78 0.00 0.00 

1972 0.02 0.00 32.44 59.91 22.75 3.03 1.82 0.52 0.03 

1973 0.00 0.00 52.46 4.69 2.28 0.32 0.00 0.07 12.90 

1974 0.00 0.00 0.00 211.85 42.06 17.84 6.25 0.74 0.01 

1975 0.00 0.00 0.16 444.35 71.69 65.80 64.65 0.14 0.00 

1976 0.00 3.33 54.94 21.26 2.39 0.04 0.00 0.00 0.00 

1977 0.00 0.00 3.65 4.66 3.85 0.64 0.00 0.00 0.00 

1978 0.00 0.00 126.96 67.51 12.03 7.87 0.64 0.11 0.14 

1979 0.00 0.00 0.00 592.72 32.73 14.63 1.92 0.11 0.00 

1980 0.00 0.00 17.23 24.83 1.43 0.49 0.00 0.80 0.88 

1981 0.00 0.55 2.69 1.74 4.81 5.55 0.27 0.00 0.00 

1982 0.00 0.00 5.51 219.15 28.97 2.72 0.00 0.00 0.00 

1983 0.00 0.54 55.56 28.40 11.21 59.41 17.35 0.03 0.00 

1984 0.00 0.00 210.30 81.48 7.84 35.35 1.90 0.00 0.00 

1985 0.00 0.00 19.71 7.25 18.17 11.59 2.91 0.00 0.00 

1986 0.00 0.00 62.39 142.48 100.50 1.62 66.62 4.53 2.21 

1987 0.68 2.70 157.38 27.47 43.05 11.46 9.46 1.56 0.11 

1988 0.09 0.09 6.81 10.72 1.67 0.01 0.00 0.00 0.00 

1989 0.00 0.00 26.07 131.46 3.83 1.93 0.00 0.00 9.61 

1990 0.00 0.00 1.45 6.88 5.30 34.54 11.34 0.01 0.00 

1991 0.00 0.00 5.85 2.30 17.51 2.49 10.52 0.23 0.00 

1992 0.00 0.00 35.70 6.33 2.19 9.12 32.90 0.02 0.00 

1993 0.00 0.00 59.44 45.47 11.92 12.26 274.97 36.50 1.38 

1994 0.00 0.00 104.61 25.76 12.86 6.09 95.75 36.17 65.63 

1995 2.44 1.10 248.33 107.71 62.03 3.08 26.52 7.81 6.40 

1996 1.47 1.37 78.38 308.39 105.41 13.14 3.16 2.37 77.42 

1997 4.28 3.32 58.67 823.51 59.09 127.83 89.20 1.96 5.88 

1998 1.60 126.95 196.33 26.85 64.98 201.97 94.44 1.57 0.28 

1999 3.26 3.50 310.25 185.31 90.02 5.06 10.95 3.62 8.02 

2000 0.45 4.09 31.04 16.14 9.84 151.07 14.50 1.80 1.08 

2001 1.43 1.28 14.20 304.20 71.36 7.10 4.12 10.30 2.60 

pp
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Sheyenne River at t

1931 13.34 55.14 148.49 279.72 96.64 137.00 33.61 23.93 19.48 

1932 26.68 44.35 608.56 841.07 191.33 149.07 65.46 32.15 22.47 

1933 16.69 16.49 650.49 552.04 213.20 76.75 42.67 18.77 12.70 

1934 10.46 14.33 74.31 255.90 63.76 29.37 15.61 11.36 11.90 

1935 9.49 16.22 214.00 228.55 141.75 106.69 124.21 144.84 36.23 

1936 16.79 15.45 58.83 538.00 232.18 61.31 24.27 7.90 8.86 

1937 8.11 5.84 40.00 258.75 119.36 118.96 39.70 26.83 24.18 

1938 12.51 13.50 142.41 147.65 83.56 45.82 20.66 44.26 17.82 

1939 11.90 10.57 234.30 318.99 67.03 62.02 28.63 11.93 9.56 

1940 6.63 5.95 7.18 399.48 142.26 48.83 15.73 15.98 9.12 

1941 13.15 13.23 71.81 1,624.57 263.86 265.25 129.70 51.75 58.01 

1942 25.28 23.83 63.39 977.93 533.11 384.08 126.09 84.51 124.82 

1943 34.79 38.26 586.64 1,873.12 437.64 1,139.00 370.94 141.10 66.93 

1944 28.65 33.23 44.04 308.43 341.94 310.33 285.50 188.88 301.34 

1945 46.79 49.01 794.53 579.60 230.17 192.62 87.23 70.31 40.91 

1946 30.15 26.40 526.53 804.23 172.30 133.83 122.87 77.96 44.24 

1947 39.72 42.08 237.26 2,674.82 331.23 710.59 142.76 61.85 38.40 

1948 36.67 31.61 48.45 2,317.80 1,777.12 310.54 173.94 119.15 58.99 

1949 29.10 23.23 158.66 1,508.54 566.98 214.74 157.07 90.31 28.67 

1950 30.67 28.64 273.01 2,978.98 3,630.14 1,990.76 544.72 205.83 67.79 

1951 52.86 52.30 127.28 1,048.41 603.24 219.82 153.15 71.73 84.96 

1952 49.00 60.70 71.30 2,151.90 163.12 86.26 292.24 46.31 42.11 

1953 36.47 46.42 171.65 140.05 275.62 1,396.35 386.12 128.49 37.93 

1954 78.68 120.56 203.00 307.08 142.25 115.75 373.39 88.38 78.44 

1955 86.01 52.98 70.83 543.76 123.28 313.17 381.43 154.85 33.60 

1956 19.70 19.06 35.51 453.44 684.07 350.52 133.30 56.73 30.41 

1957 42.21 44.01 139.40 182.93 120.60 210.85 136.09 106.33 336.75 

1958 117.80 101.86 248.53 292.46 124.89 105.46 202.73 65.14 46.86 

1959 43.64 37.49 114.93 144.50 68.30 233.85 105.87 36.21 35.18 

1960 42.78 45.65 184.33 1,602.65 223.05 225.49 111.61 37.50 48.51 

1961 71.97 66.03 200.74 124.16 110.81 52.19 34.13 24.89 36.23 

1962 25.90 36.96 87.65 1,735.64 604.44 647.56 2,082.38 595.81 185.78 

1963 72.09 63.43 134.06 437.76 174.10 178.90 77.77 56.72 46.19 

1964 33.13 51.67 64.65 366.17 155.17 185.55 315.42 68.99 65.52 

1965 68.82 69.99 78.99 2,935.41 743.86 351.97 273.28 356.71 152.29 

Year January February March April May June July August September 
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Sheyenne River at the mou

1966 126.52 105.78 2,187.23 2,140.84 743.60 403.37 257.29 318.21 123.23 

1967 100.48 99.58 478.17 1,542.57 1,045.77 323.54 115.50 57.35 48.09 

1968 58.20 60.38 238.68 370.37 278.14 545.65 170.99 62.65 56.67 

1969 70.04 182.05 297.16 4,168.16 1,366.74 345.99 803.41 136.52 89.30 

1970 76.54 92.57 304.71 1,427.77 1,058.26 1,224.78 254.93 69.29 74.56 

1971 58.45 65.20 638.91 834.11 590.04 377.66 409.45 78.20 103.60 

1972 162.30 115.16 997.09 1,429.42 988.12 591.66 168.97 147.08 90.40 

1973 66.33 103.19 785.31 256.20 107.64 74.00 37.30 36.18 78.47 

1974 43.68 128.27 327.61 1,832.69 1,142.70 858.96 130.89 85.62 53.38 

1975 73.47 78.53 120.82 2,693.46 1,681.10 1,080.47 4,191.20 282.08 144.19 

1976 116.27 227.57 699.69 930.13 379.79 124.28 67.63 31.23 7.82 

1977 8.75 17.30 93.21 142.21 141.21 44.92 44.89 23.31 40.25 

1978 48.75 97.59 968.20 2,020.66 433.33 176.80 119.08 51.11 133.10 

1979 45.45 54.14 128.26 4,426.45 2,611.52 533.84 259.27 188.39 90.40 

1980 47.68 56.53 234.09 690.41 84.43 102.94 71.56 48.09 148.54 

1981 39.82 52.96 129.18 308.84 133.78 170.14 226.23 72.87 39.75 

1982 25.28 36.31 240.21 2,241.90 513.30 309.40 232.58 124.33 39.27 

1983 163.07 103.21 1,727.60 1,383.86 393.91 452.08 615.66 94.61 151.06 

1984 155.32 124.59 1,040.16 1,895.83 679.89 359.88 108.43 30.59 51.20 

1985 76.82 55.21 670.46 375.37 306.84 177.96 71.73 73.69 72.37 

1986 179.92 178.96 1,089.29 1,151.07 1,145.86 228.57 232.75 173.29 128.57 

1987 199.27 131.10 2,641.28 2,723.53 583.94 319.51 102.67 573.65 158.97 

1988 142.54 60.36 754.46 406.28 143.91 73.27 28.73 22.79 29.19 

1989 44.60 55.75 150.76 1,583.64 169.55 100.40 44.45 40.70 66.96 

1990 23.28 27.98 75.85 130.84 77.15 127.52 58.59 27.16 55.66 

1991 25.18 36.45 84.55 98.79 177.50 104.68 81.46 29.33 36.61 

1992 74.08 72.23 918.14 274.24 134.94 129.80 155.66 73.45 81.71 

1993 74.08 111.05 514.10 1,078.63 335.85 445.44 3,106.75 3,071.19 813.78 

1994 186.17 249.13 1,585.02 1,702.22 692.00 500.16 2,231.48 647.63 1,018.48 

1995 284.53 227.30 2,561.99 3,940.75 1,683.23 645.28 746.01 426.83 371.40 

1996 141.65 301.97 1,574.97 4,364.74 2,855.50 793.70 344.07 374.59 254.84 

1997 284.76 300.93 391.33 7,631.02 4,137.53 970.94 961.16 292.84 209.82 

1998 191.68 660.25 2,974.88 1,683.17 1,204.60 1,142.59 971.95 194.68 126.09 

1999 187.53 201.99 2,624.65 4,182.55 3,123.28 1,195.90 746.91 436.42 1,103.00 

2000 265.33 198.95 1,024.15 568.59 457.47 2,245.83 1,880.52 440.78 693.19 

2001 305.62 349.74 697.02 5,050.96 1,595.07 934.83 666.90 615.25 209.36 

pp
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Buffalo River at th

1931 6.30 19.94 82.36 40.18 33.34 32.00 21.33 15.57 7.58 

1932 12.80 13.63 65.00 147.51 63.01 38.74 8.16 3.49 7.02 

1933 5.47 5.21 108.53 143.07 74.66 29.42 11.05 8.91 9.54 

1934 13.03 17.77 45.57 169.45 34.94 18.51 5.01 1.78 7.02 

1935 10.85 17.77 148.47 92.10 73.92 52.59 49.28 19.49 10.62 

1936 3.52 1.19 77.95 694.49 120.50 21.58 2.73 0.00 0.97 

1937 7.11 5.92 3.60 164.06 128.23 57.49 17.29 21.09 18.14 

1938 5.14 6.47 126.76 61.40 302.92 104.69 20.96 8.58 8.86 

1939 6.87 4.94 259.04 324.04 39.47 23.05 9.61 2.13 2.15 

1940 1.03 0.90 2.71 274.39 78.58 22.07 7.67 13.61 7.09 

1941 11.19 11.66 73.87 420.46 57.25 75.39 15.08 9.07 23.41 

1942 2.65 1.85 34.90 104.46 362.62 255.84 43.89 38.49 187.19 

1943 12.68 9.62 88.98 1,388.74 287.10 532.03 303.41 133.99 51.24 

1944 10.25 11.57 28.06 257.00 282.08 322.90 580.21 870.38 634.40 

1945 25.60 18.84 1,032.92 698.93 302.06 164.15 38.13 27.21 62.15 

1946 15.52 11.28 529.35 275.59 123.81 106.53 330.25 65.09 39.47 

1947 35.67 25.48 153.14 1,264.01 328.41 336.02 82.99 22.56 24.52 

1948 20.14 19.20 53.25 741.26 121.00 76.13 42.54 28.93 17.90 

1949 12.92 11.66 21.83 258.20 133.01 45.11 124.30 67.55 20.84 

1950 11.32 7.32 242.85 1,891.22 1,044.70 205.34 65.09 19.74 15.57 

1951 16.00 16.35 23.03 959.88 176.90 212.45 63.26 40.33 47.44 

1952 32.35 31.64 34.54 1,539.84 147.23 40.09 622.63 284.28 112.41 

1953 18.60 20.62 242.61 353.78 305.86 1,171.70 162.92 252.53 65.58 

1954 26.19 37.80 118.61 429.33 322.78 174.93 55.78 24.89 31.63 

1955 15.40 15.76 17.39 441.09 109.47 121.98 571.39 533.63 68.53 

1956 19.91 23.82 29.98 1,240.03 271.41 120.38 31.87 29.05 17.29 

1957 16.47 16.83 224.74 415.06 177.88 257.56 242.85 79.93 411.90 

1958 37.45 31.52 72.79 138.99 95.37 171.01 800.63 65.95 97.83 

1959 20.03 16.12 139.71 254.60 210.12 476.87 476.13 107.27 66.44 

1960 40.64 31.88 74.71 1,003.90 437.03 154.46 126.27 51.49 54.18 

1961 20.74 19.55 171.01 195.12 303.04 63.62 23.78 11.06 19.86 

1962 11.72 13.51 17.99 807.82 1,110.90 2,620.94 690.66 188.05 80.30 

1963 11.38 7.38 113.57 278.71 194.30 603.38 36.53 86.55 124.80 

1964 19.91 21.45 53.37 1,024.28 427.96 146.13 53.33 22.56 35.55 

1965 18.72 19.43 20.39 1,669.36 379.04 319.71 95.13 49.40 68.40 

Year January February March April May June July August September 
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Buffalo River at the mou

1966 43.25 34.48 1,568.62 765.84 497.10 129.09 101.14 227.65 60.19 

1967 43.01 47.28 233.97 1,020.93 344.11 402.21 103.10 25.13 19.61 

1968 12.44 12.21 110.81 202.79 158.63 132.52 92.55 27.46 39.96 

1969 20.50 17.77 21.47 2,282.18 239.78 78.21 120.63 38.86 21.09 

1970 22.63 21.80 51.33 527.07 316.89 300.71 63.01 11.16 11.57 

1971 14.81 16.35 100.26 306.17 103.46 72.70 142.33 25.99 149.56 

1972 41.36 36.02 856.75 746.78 514.38 165.37 54.92 57.13 36.16 

1973 18.60 18.60 146.55 117.05 81.89 44.38 28.07 28.81 161.45 

1974 36.14 38.63 62.36 927.98 558.51 228.14 84.59 67.42 36.41 

1975 23.94 22.51 32.38 1,140.61 483.49 986.96 3,449.64 96.72 38.49 

1976 29.98 33.77 233.26 367.69 81.52 29.18 12.38 2.13 3.11 

1977 10.45 11.10 49.65 107.09 43.15 45.36 35.18 6.72 44.99 

1978 60.67 36.38 465.91 2,379.32 229.85 75.15 44.50 16.43 11.67 

1979 16.95 15.40 21.47 1,601.00 395.96 149.44 230.34 65.83 20.72 

1980 25.60 28.20 81.19 595.43 71.59 41.56 15.81 12.75 36.53 

1981 20.74 34.36 73.87 100.02 186.46 57.37 49.53 75.39 45.97 

1982 15.76 17.06 285.30 856.87 186.58 68.04 95.50 33.10 21.70 

1983 30.10 31.52 243.09 174.73 127.25 92.92 989.17 130.43 73.31 

1984 34.13 72.40 741.02 641.48 154.58 691.52 67.67 16.30 13.24 

1985 30.81 24.53 411.58 209.63 789.47 764.95 180.08 118.91 172.48 

1986 55.34 52.49 697.01 1,635.78 1,114.21 534.73 186.83 71.10 246.16 

1987 63.40 66.12 664.39 274.15 189.28 80.54 43.15 44.01 33.10 

1988 27.61 26.66 315.76 329.68 99.17 36.04 10.03 16.30 17.29 

1989 24.88 23.34 59.84 1,629.79 165.13 68.65 21.09 21.58 114.99 

1990 24.17 27.97 127.12 260.72 173.83 166.48 45.60 13.48 13.36 

1991 17.42 22.63 99.30 165.86 319.34 135.71 184.01 24.03 20.96 

1992 36.50 45.27 205.19 126.16 92.31 220.78 186.46 40.45 64.11 

1993 30.22 31.99 150.27 758.65 183.27 315.54 1,832.70 1,116.17 194.55 

1994 63.40 59.37 756.49 643.16 359.06 142.33 190.50 81.15 60.80 

1995 54.51 57.23 818.13 551.42 342.76 94.03 253.27 55.53 40.94 

1996 45.03 41.47 183.13 1,282.00 883.62 274.48 63.87 39.60 32.36 

1997 43.37 40.41 40.18 4,091.86 553.36 406.01 565.75 126.39 131.66 

1998 101.55 337.60 941.77 669.42 1,402.41 865.72 1,806.96 116.34 72.70 

1999 86.98 108.66 541.70 907.72 782.61 354.16 320.45 174.93 593.70 

2000 82.24 120.87 863.46 465.31 258.66 1,350.93 627.65 95.13 230.47 

2001 117.31 104.99 103.26 3,311.14 766.18 593.33 161.82 72.57 63.99 

pp
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Elm River at the 

1931 0.00 0.09 1.17 0.62 0.05 0.08 0.35 0.00 0.00 

1932 0.00 1.22 146.62 60.97 1.62 0.61 1.06 0.00 0.00 

1933 0.00 0.00 44.14 11.01 0.53 0.16 0.50 0.00 0.00 

1934 0.00 0.00 0.19 0.96 0.03 0.03 0.08 0.00 0.03 

1935 0.00 0.00 7.00 0.88 0.80 21.76 2.97 0.00 0.00 

1936 0.00 0.00 0.00 37.95 0.37 0.03 0.19 0.00 0.00 

1937 0.00 0.00 0.00 0.19 0.08 0.37 0.45 0.05 0.03 

1938 0.00 0.00 1.48 0.02 0.13 0.00 0.40 0.05 0.00 

1939 0.00 0.00 15.21 1.24 0.00 0.32 0.27 0.00 0.00 

1940 0.00 0.00 0.00 25.08 0.13 0.03 0.08 0.11 0.00 

1941 0.00 0.00 0.67 309.88 0.37 11.62 3.21 0.00 0.03 

1942 0.00 0.00 0.07 71.22 18.41 3.34 3.05 0.05 0.03 

1943 0.00 0.00 86.41 14.90 2.52 24.36 14.86 0.03 0.00 

1944 0.00 0.00 0.00 4.04 0.53 1.59 7.40 4.99 0.61 

1945 0.00 0.00 15.02 1.46 0.66 1.09 1.72 0.00 0.00 

1946 0.00 0.00 81.80 2.44 0.48 0.35 21.31 0.00 0.00 

1947 0.00 0.00 24.05 175.61 3.45 8.52 3.26 0.03 0.00 

1948 0.00 0.00 0.00 4,460.22 70.60 1.91 5.25 0.40 0.00 

1949 0.00 0.00 0.00 308.63 3.37 68.19 4.59 0.61 0.00 

1950 0.02 0.02 2.60 6,295.86 9,667.72 50.36 34.97 0.56 0.21 

1951 0.14 0.11 12.92 91.42 1.62 0.77 4.25 0.00 0.08 

1952 0.07 0.02 0.19 119.01 0.21 0.00 10.59 0.35 0.00 

1953 0.02 0.02 0.93 0.41 1.78 50.84 16.24 0.03 0.03 

1954 0.02 0.81 4.56 3.49 0.74 5.52 22.13 0.00 0.00 

1955 0.00 0.00 0.00 48.79 0.16 11.73 17.14 0.03 0.00 

1956 0.00 0.00 0.00 24.36 5.52 5.49 0.00 0.00 0.00 

1957 0.00 0.00 0.65 0.28 0.00 0.00 0.00 0.00 0.00 

1958 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 

1959 0.00 0.00 1.70 0.45 0.00 0.00 0.00 0.00 0.00 

1960 0.00 0.00 12.32 111.77 0.41 0.03 0.00 0.00 0.00 

1961 0.00 0.00 4.47 0.51 0.14 0.00 0.00 0.00 0.00 

1962 0.00 0.00 0.00 218.53 30.25 23.72 99.76 3.79 13.77 

1963 0.06 0.00 4.11 21.09 2.44 1.29 0.00 0.00 0.00 

1964 0.02 0.07 0.00 22.93 0.66 190.08 15.76 0.13 0.27 

1965 0.05 0.02 0.00 3,466.42 98.17 14.75 7.27 1.94 4.35 

Year January February March April May June July August September 
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Elm River at the mouth

1966 0.38 0.16 3,391.95 257.19 89.44 22.74 10.00 48.42 1.25 

1967 0.09 0.07 159.85 1,102.11 385.76 27.57 2.65 0.03 0.00 

1968 0.07 0.02 23.09 2.51 2.79 354.48 3.32 1.33 0.64 

1969 0.07 0.05 0.02 3,259.97 55.88 19.05 20.19 0.82 3.42 

1970 0.36 0.41 0.17 1,772.42 385.68 176.95 9.05 0.29 0.32 

1971 0.05 0.09 9.15 276.27 11.41 14.59 20.83 0.19 0.08 

1972 0.20 0.09 390.77 704.23 200.03 27.22 3.26 0.19 0.03 

1973 0.05 0.14 150.51 2.34 0.66 0.58 0.40 0.03 0.08 

1974 0.00 0.05 0.00 1,422.09 304.84 89.52 2.76 5.47 0.16 

1975 0.18 0.14 0.81 1,039.20 213.93 23.38 245.93 0.03 0.03 

1976 0.07 0.09 105.78 56.51 1.09 0.19 1.11 0.00 0.00 

1977 0.00 0.00 0.00 0.26 0.16 0.11 0.56 0.00 0.03 

1978 0.07 0.02 186.28 1,141.16 17.06 4.01 2.79 0.00 0.13 

1979 0.02 0.02 0.00 11,417.84 418.45 15.50 9.39 0.85 0.05 

1980 0.09 0.09 4.13 49.17 0.16 0.03 1.22 0.00 0.03 

1981 0.00 0.02 0.02 0.03 0.00 0.00 0.00 0.00 0.00 

1982 0.09 0.07 11.27 573.42 38.47 6.24 7.51 0.00 0.00 

1983 0.27 0.23 312.86 163.12 23.96 295.58 54.39 10.61 6.31 

1984 0.25 0.18 350.36 130.40 22.00 249.67 1.42 0.00 0.08 

1985 0.00 0.02 120.13 27.94 7.14 2.79 0.00 0.86 0.00 

1986 0.14 0.11 203.48 233.09 65.01 7.40 8.09 0.42 0.11 

1987 0.52 0.16 2,261.13 1,353.04 70.39 30.14 1.86 69.17 7.93 

1988 0.50 0.63 256.02 66.54 3.29 0.69 0.27 0.00 0.00 

1989 0.07 0.07 0.02 753.50 6.74 1.54 0.56 0.00 0.00 

1990 0.00 0.00 0.00 0.48 0.19 0.29 0.58 0.08 0.11 

1991 0.00 0.05 0.05 0.48 17.96 7.30 9.21 0.00 0.03 

1992 0.00 0.00 149.89 0.74 0.27 0.45 2.89 0.72 1.22 

1993 0.07 0.11 43.20 53.09 4.38 7.46 219.40 608.66 104.65 

1994 1.62 0.90 724.67 67.78 89.55 55.32 9.68 126.99 260.00 

1995 2.91 0.95 4,225.83 1,223.70 611.08 31.76 34.33 22.13 13.11 

1996 1.17 0.47 8.55 5,247.53 519.51 49.59 18.10 0.96 0.29 

1997 0.52 0.83 1.41 16,327.12 338.72 57.20 46.57 16.11 1.94 

1998 0.11 103.89 1,011.07 118.17 24.94 25.87 58.29 0.53 0.08 

1999 0.92 0.56 2,075.06 3,010.21 3,549.38 487.67 60.26 9.71 20.46 

2000 2.48 25.87 23.83 2,128.61 12.84 38.58 53.60 20.17 0.90 

2001 12.36 19.17 59.25 10,035.27 325.00 178.25 50.17 92.12 1.94 

pp
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Wild Rice River (Minn.

1931 2.19 21.31 120.04 64.06 56.98 54.09 21.81 14.73 6.01 

1932 11.93 12.89 89.18 234.86 112.96 66.16 6.60 2.29 5.47 

1933 4.14 3.90 168.83 227.79 135.57 49.52 9.61 7.36 8.01 

1934 12.20 17.95 57.32 269.75 59.92 30.40 3.59 0.99 5.47 

1935 9.71 17.95 249.39 146.73 134.13 91.28 61.86 19.49 9.15 

1936 2.39 0.62 111.81 1,103.65 226.84 35.73 1.68 2.20 0.47 

1937 5.74 4.57 2.43 261.17 242.51 100.26 16.79 21.49 17.83 

1938 3.83 5.10 204.84 97.86 611.17 188.44 21.34 7.02 7.31 

1939 5.50 3.65 498.71 515.42 68.32 38.29 8.08 1.24 1.25 

1940 0.51 0.44 1.71 436.53 143.23 36.57 6.11 12.46 5.53 

1941 10.08 10.62 104.58 668.58 101.89 133.36 14.16 7.52 24.49 

1942 1.68 1.07 41.12 166.38 741.59 482.80 53.54 45.47 325.85 

1943 11.79 8.36 131.85 2,205.04 576.93 1,043.64 594.50 214.89 64.94 

1944 9.04 10.51 31.34 319.37 531.29 700.34 1,188.42 1,016.83 807.42 

1945 79.73 66.51 1,133.70 1,527.39 710.51 257.91 105.50 99.46 157.61 

1946 36.93 24.02 783.90 927.91 451.00 280.37 213.22 31.99 37.92 

1947 57.18 48.99 185.90 1,883.18 702.03 778.61 103.80 14.41 6.34 

1948 4.29 3.57 3.41 881.49 165.76 40.99 19.49 4.16 0.19 

1949 0.84 0.42 0.49 238.85 104.86 215.76 453.65 290.75 58.68 

1950 14.06 13.22 89.05 1,829.50 1,730.72 511.06 273.48 7.94 4.83 

1951 3.18 2.95 8.59 840.96 208.34 76.05 9.34 8.22 17.58 

1952 104.07 87.18 85.05 1,304.23 313.63 9.69 289.05 155.70 61.54 

1953 38.71 38.40 208.00 526.74 465.83 940.35 592.62 250.29 94.59 

1954 64.52 76.37 134.74 765.48 631.07 345.93 125.62 35.69 30.82 

1955 22.98 32.52 34.74 640.96 299.75 276.77 148.60 181.23 15.57 

1956 14.27 19.30 24.74 1,236.86 442.43 238.11 43.74 24.36 20.34 

1957 15.11 15.11 169.69 449.90 341.48 350.91 386.71 115.03 367.01 

1958 51.51 45.11 115.48 181.79 106.98 170.53 235.14 46.29 39.61 

1959 23.39 20.35 124.95 317.48 318.92 284.18 224.76 93.63 40.14 

1960 58.96 49.20 100.42 943.80 431.09 453.86 224.55 107.61 176.99 

1961 41.96 37.98 219.06 320.21 635.94 193.83 57.62 26.27 36.86 

1962 27.28 23.60 35.05 649.27 1,009.73 1,881.13 830.94 217.24 120.96 

1963 10.91 6.00 118.00 499.27 390.84 850.21 137.27 58.26 66.20 

1964 20.46 25.39 29.90 1,240.02 674.71 511.80 185.78 54.02 43.53 

1965 31.16 32.94 24.63 2,377.93 795.03 774.80 257.17 72.77 80.39 

Year January February March April May June July August September 
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Wild Rice River (Minn.) at the 

1966 89.70 58.85 1,563.18 2,052.66 1,045.53 305.05 131.87 232.28 110.37 

1967 64.41 72.28 324.95 1,652.65 681.38 552.69 267.66 46.39 18.22 

1968 33.89 22.87 218.85 407.48 336.82 256.85 198.81 71.81 92.26 

1969 58.64 64.73 74.84 2,608.45 576.84 322.63 177.52 54.12 39.72 

1970 71.65 56.65 61.90 1,505.28 1,134.40 1,401.31 223.60 39.61 25.21 

1971 36.51 39.45 205.69 836.43 351.76 171.17 79.97 38.24 128.27 

1972 95.68 73.44 1,042.12 1,831.60 948.30 347.84 160.89 125.94 66.20 

1973 41.54 45.32 428.53 257.69 216.71 150.83 86.85 87.91 872.46 

1974 84.87 84.45 91.90 2,468.45 1,731.78 581.71 188.54 132.29 45.65 

1975 64.62 68.82 104.63 2,268.45 1,224.43 932.62 3,321.63 226.56 86.96 

1976 67.04 77.32 493.37 873.80 206.75 87.07 43.64 8.59 0.76 

1977 0.10 0.23 30.32 176.21 59.42 38.87 13.45 1.13 27.01 

1978 85.29 54.03 151.58 3,432.68 431.94 175.72 77.43 67.15 97.87 

1979 31.26 30.63 64.32 3,221.09 1,201.13 442.95 638.69 84.21 48.93 

1980 48.89 50.57 74.74 708.64 162.90 49.57 12.60 6.40 13.03 

1981 9.38 12.90 55.16 111.05 189.07 153.48 187.37 156.76 178.69 

1982 65.46 62.95 230.74 1,723.18 648.76 232.60 119.48 41.31 20.23 

1983 49.20 48.68 759.59 377.16 185.68 447.40 821.62 178.58 106.45 

1984 67.56 129.98 832.75 931.17 261.09 1,645.99 125.83 24.36 15.36 

1985 35.61 26.81 887.61 333.61 2,196.77 1,265.74 802.02 523.98 328.24 

1986 126.84 107.01 632.11 2,490.56 1,706.36 523.35 219.36 93.10 131.55 

1987 85.50 79.21 909.49 457.58 492.21 289.37 409.48 248.70 104.65 

1988 69.24 62.42 491.90 755.06 218.94 58.04 17.16 23.73 32.73 

1989 52.87 57.07 75.79 2,512.66 523.35 278.89 64.61 14.30 115.88 

1990 16.89 20.56 147.27 514.11 322.42 296.79 76.16 13.03 4.12 

1991 17.83 28.33 154.00 245.37 581.29 143.52 149.98 27.43 24.15 

1992 38.61 40.91 518.43 216.42 239.80 119.27 633.29 276.87 325.91 

1993 74.49 77.95 258.11 1,121.07 369.76 447.51 1,700.01 1,941.50 378.03 

1994 88.65 81.09 361.58 1,174.75 738.05 764.42 886.44 253.68 444.76 

1995 129.25 121.59 1,445.28 903.91 910.06 237.47 1,037.59 324.85 150.30 

1996 156.00 156.63 152.11 3,249.52 2,180.88 536.59 150.41 67.58 44.38 

1997 138.38 22.87 136.63 5,384.28 1,217.01 697.80 1,680.94 313.31 165.34 

1998 196.70 804.76 1,437.91 846.43 2,263.50 1,867.36 1,859.94 202.41 84.21 

1999 161.46 146.35 1,323.17 2,164.24 2,035.77 984.84 1,068.73 690.49 1,407.67 

2000 174.15 180.44 1,030.54 662.11 373.90 2,655.40 1,035.89 228.79 309.28 

2001 257.03 219.26 233.69 4,840.06 1,546.42 936.33 289.16 374.95 162.06 

pp
Gaged (April 1936 through June 1937, April 1942 through September 1960, and June 1961 through December 2001) and estimated (January 1931 

through March 1942, and October 1960 through May 1961) historic streamflow, in cubic feet per second, for the Red River of the Nor

1931 41.75 73.20 241.31 556.68 366.32 257.90 139.88 49.55 20.76 

1932 68.82 86.69 639.15 2,035.95 535.24 209.82 78.49 20.42 14.77 

1933 13.02 0.53 495.33 1,159.05 452.29 224.10 33.68 14.07 10.38 

1934 28.50 40.42 209.82 788.30 230.91 78.39 67.27 10.13 6.65 

1935 9.10 24.23 478.69 778.46 500.74 263.60 391.02 75.48 70.07 

1936 28.31 12.79 27.29 2,899.00 803.00 194.00 58.30 8.67 11.80 

1937 9.71 2.50 17.43 1,156.00 883.00 517.00 230.48 125.47 339.52 

1938 11.62 30.21 719.74 485.60 2,382.82 1,053.99 212.28 44.36 80.15 

1939 167.53 168.68 229.01 1,613.76 530.95 360.54 183.67 29.49 87.32 

1940 2.63 18.24 109.04 2,117.17 1,081.59 505.74 134.45 8.48 64.70 

1941 80.46 151.18 225.52 3,655.56 1,190.08 2,504.21 278.01 59.60 724.10 

1942 197.55 186.95 908.36 1,738.00 2,957.00 2,595.00 2,057.49 937.91 1,456.34 

1943 522.67 427.81 577.45 12,280.01 3,210.00 5,930.00 3,134.00 1,280.00 730.93 

1944 342.05 268.41 328.30 1,800.00 2,362.00 3,417.00 4,136.00 3,003.00 2,624.00 

1945 691.64 593.27 5,866.85 5,144.00 2,300.00 1,657.00 791.40 329.46 595.31 

1946 317.74 191.61 4,046.65 3,783.00 1,412.00 879.00 1,474.90 1,179.06 524.49 

1947 666.06 522.74 760.30 11,890.00 3,104.00 3,454.00 1,484.00 362.00 622.75 

1948 243.27 176.83 561.66 8,100.00 3,479.00 1,190.00 558.00 454.10 384.85 

1949 119.47 150.07 353.88 3,233.00 1,161.00 738.00 1,557.00 712.00 728.97 

1950 158.21 223.61 571.01 12,500.00 11,529.99 4,555.00 2,459.00 1,491.52 1,032.51 

1951 264.52 253.36 1,305.52 6,387.00 2,634.00 1,663.00 1,324.47 783.09 639.16 

1952 836.96 793.14 1,119.11 12,830.00 2,926.00 1,789.00 2,826.00 855.79 559.34 

1953 239.71 298.27 1,081.00 1,761.00 2,000.00 7,684.00 2,834.00 1,572.00 539.75 

1954 580.86 530.06 904.12 2,568.00 1,988.00 1,820.00 1,323.00 484.92 293.81 

1955 372.96 303.32 356.19 2,368.00 886.00 960.00 1,646.00 1,205.00 332.74 

1956 398.70 351.92 276.16 4,179.00 2,189.00 1,563.00 541.00 383.00 650.76 

1957 156.37 178.70 865.43 1,827.00 1,592.00 2,136.00 1,762.00 887.00 2,082.59 

1958 529.07 477.21 1,094.51 1,446.00 757.00 615.00 2,039.00 435.00 363.00 

1959 409.12 385.41 493.19 1,184.00 925.00 1,901.00 1,466.00 464.00 324.00 

1960 351.17 364.33 285.02 5,288.00 2,125.00 1,682.00 1,032.00 386.00 403.00 

1961 244.88 277.70 941.12 871.23 1,177.26 753.00 313.00 197.00 186.00 

1962 138.00 164.00 249.00 6,308.00 5,339.00 10,310.00 9,378.00 3,866.00 1,325.00 

1963 396.00 303.00 688.00 2,189.00 1,323.00 3,918.00 930.00 444.00 392.00 

1964 225.00 226.00 303.00 3,930.00 2,449.00 1,734.00 973.00 259.00 239.00 

1965 285.00 267.00 299.00 12,200.00 3,581.00 4,137.00 2,195.00 1,035.00 751.00 

Year January February March April May June July August September 
Gaged (April 1936 through June 1937, April 1942 through September 1960, and June 1961 through December 2001) and estimated (January 1931 

through March 1942, and October 1960 through May 1961) historic streamflow, in cubic feet per second, for the Red River of the North at H

1966 745.00 737.00 9,429.00 9,535.00 4,607.00 2,656.00 1,377.00 1,643.00 767.00 

1967 612.00 519.00 1,519.00 7,193.00 3,674.00 3,241.00 1,731.00 441.00 170.00 

1968 254.00 235.00 938.00 1,492.00 1,448.00 1,671.00 977.00 401.00 323.00 

1969 332.00 529.00 919.00 20,080.01 6,715.00 2,364.00 2,080.00 558.00 219.00 

1970 337.00 363.00 575.00 5,844.00 3,365.00 5,016.00 1,183.00 267.00 180.00 

1971 211.00 226.00 1,556.00 3,085.00 1,481.00 937.00 1,327.00 345.00 680.00 

1972 963.00 828.00 5,949.00 7,169.00 4,400.00 3,332.00 1,476.00 1,109.00 671.00 

1973 435.00 579.00 2,919.00 1,382.00 803.00 608.00 314.00 265.00 1,285.00 

1974 771.00 731.00 1,305.00 7,270.00 5,017.00 3,013.00 1,438.00 821.00 373.00 

1975 329.00 445.00 724.00 11,250.00 6,195.00 4,583.00 20,060.00 1,494.00 758.00 

1976 500.00 616.00 2,582.00 3,786.00 1,181.00 430.00 241.00 87.80 38.40 

1977 32.10 45.90 331.00 733.00 449.00 242.00 251.00 59.50 221.00 

1978 706.00 480.00 1,629.00 16,740.00 2,950.00 1,964.00 2,019.00 599.00 320.00 

1979 178.00 174.00 461.00 17,349.99 8,994.00 2,812.00 2,487.00 1,400.00 847.00 

1980 499.00 453.00 774.00 3,881.00 980.00 776.00 289.00 230.00 260.00 

1981 140.00 203.00 618.00 705.00 923.00 568.00 678.00 541.00 291.00 

1982 311.00 356.00 1,174.00 9,299.00 2,322.00 1,366.00 1,050.00 506.00 282.00 

1983 411.00 315.00 3,674.00 2,924.00 1,057.00 1,607.00 3,442.00 777.00 743.00 

1984 506.00 594.00 4,192.00 9,233.00 2,173.00 5,361.00 1,501.00 571.00 286.00 

1985 680.00 502.00 3,164.00 2,198.00 5,095.00 4,250.00 2,395.00 1,813.00 1,604.00 

1986 950.60 940.10 4,642.00 11,720.00 8,639.00 4,218.00 2,855.00 1,324.00 2,035.00 

1987 1,023.00 1,052.00 4,975.00 4,333.00 2,044.00 1,420.00 1,444.00 899.00 465.90 

1988 319.90 484.60 2,615.00 2,146.00 801.20 449.00 153.30 154.20 171.60 

1989 150.40 249.20 560.40 14,270.01 2,259.00 1,535.00 544.90 281.30 885.80 

1990 118.40 160.10 324.70 1,249.00 1,112.00 1,462.00 635.50 268.60 256.00 

1991 94.40 168.00 638.10 1,142.00 2,042.00 1,604.00 2,283.00 688.40 861.60 

1992 316.00 349.00 2,447.00 1,119.00 951.40 1,600.00 1,892.00 904.70 802.60 

1993 407.40 479.30 1,354.00 8,045.00 2,123.00 3,107.00 10,960.00 11,700.00 3,360.00 

1994 894.10 911.30 4,221.00 8,797.00 4,675.00 2,950.00 5,993.00 1,819.00 2,146.00 

1995 881.00 885.00 9,444.00 12,200.00 6,045.00 2,957.00 4,364.00 1,348.00 842.00 

1996 796.80 792.20 3,524.00 14,079.99 9,748.00 3,761.00 1,268.00 854.80 477.50 

1997 794.80 1,270.00 1,923.00 38,459.98 15,569.99 4,747.00 4,953.00 1,622.00 1,180.00 

1998 930.00 1,952.00 8,801.00 6,062.00 8,454.00 5,675.00 8,468.00 1,766.00 1,030.00 

1999 923.20 805.40 6,848.00 10,080.00 8,217.00 4,530.00 3,526.00 2,496.00 4,705.00 

2000 923.00 966.00 5,947.00 3,370.00 2,865.00 10,480.00 6,580.00 1,745.00 2,099.00 

2001 1,240.00 1,129.00 1,897.00 28,480.00 11,790.00 7,226.00 4,280.00 2,431.00 1,199.00 

pp
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Goose River at th

1931 0.14 1.68 12.01 28.50 3.81 4.54 1.36 1.43 0.35 

1932 0.21 21.18 289.49 253.75 29.36 13.50 1.05 0.32 0.42 

1933 0.21 0.17 139.72 112.41 17.68 6.44 1.24 0.25 0.12 

1934 0.08 0.13 3.37 35.20 2.20 2.95 1.33 1.55 2.97 

1935 0.21 0.32 74.45 34.03 21.32 92.14 12.86 1.07 0.43 

1936 0.21 0.21 1.06 202.49 15.11 2.97 0.62 0.11 0.11 

1937 0.11 0.21 0.53 16.38 8.03 10.34 2.60 4.00 2.14 

1938 0.11 0.11 37.33 6.92 5.73 1.45 0.01 0.00 0.00 

1939 0.00 0.00 105.29 39.88 1.20 9.66 0.13 0.00 0.00 

1940 0.00 0.00 0.00 166.23 9.70 1.75 0.00 5.03 0.01 

1941 0.00 0.00 26.06 550.04 15.00 65.79 7.43 1.35 2.71 

1942 0.08 0.00 9.84 273.21 86.89 33.64 6.48 3.80 2.91 

1943 0.47 0.34 228.65 129.75 35.68 97.93 23.04 2.27 0.49 

1944 0.18 0.13 2.15 69.66 17.79 22.71 6.13 41.79 13.61 

1945 0.70 0.68 104.76 43.07 19.50 18.32 6.41 1.39 1.17 

1946 0.50 0.59 223.12 54.88 17.14 9.76 9.48 0.58 0.90 

1947 0.23 0.15 129.22 419.77 41.04 55.72 9.83 2.08 0.95 

1948 0.48 0.11 0.57 1,956.85 158.57 24.86 16.71 10.61 1.02 

1949 0.49 0.27 1.21 548.98 40.61 170.25 19.93 13.39 1.19 

1950 2.85 2.51 47.96 2,305.68 2,437.55 144.65 62.04 12.86 7.69 

1951 6.64 6.15 97.95 307.67 29.36 15.43 3.87 1.69 4.60 

1952 0.00 1.95 15.10 348.83 12.00 1.53 140.79 9.78 1.51 

1953 1.99 2.03 30.20 23.18 30.64 145.40 108.86 2.33 3.06 

1954 2.70 17.05 61.47 65.09 20.68 44.14 5.03 0.75 0.38 

1955 0.60 0.74 1.04 228.23 6.80 66.11 6.06 2.76 0.17 

1956 0.62 0.53 0.75 299.59 59.36 61.39 6.48 1.07 1.04 

1957 1.05 0.78 19.46 18.93 8.44 11.25 5.68 0.11 56.79 

1958 1.02 0.86 1.67 16.80 5.22 3.38 31.07 3.77 0.49 

1959 0.00 0.00 35.73 39.56 7.18 7.30 0.52 1.43 0.31 

1960 0.93 0.85 76.36 463.16 16.07 13.61 10.93 4.43 1.73 

1961 0.81 0.87 57.85 28.61 21.00 3.72 0.17 0.09 0.43 

1962 0.60 0.55 0.90 733.82 191.79 156.54 51.43 11.79 131.57 

1963 2.46 0.31 31.16 94.65 19.71 11.25 12.64 2.23 0.38 

1964 0.00 0.00 1.62 159.31 19.82 295.29 31.82 5.69 8.86 

1965 3.18 1.95 1.47 1,735.64 183.75 74.79 72.75 25.07 38.79 

Year January February March April May June July August September 
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Goose River at the mout

1966 11.44 7.27 1,176.24 503.36 176.25 94.39 126.75 141.65 19.93 

1967 5.04 4.13 300.87 1,006.08 431.90 104.68 18.32 2.34 1.11 

1968 4.47 2.52 126.88 55.52 37.39 412.72 57.32 20.57 13.71 

1969 4.21 3.77 6.16 1,685.65 142.82 85.82 78.86 15.96 34.07 

1970 10.91 11.55 14.14 1,261.32 338.90 284.15 41.36 9.19 9.53 

1971 3.78 5.25 83.91 520.80 70.18 74.36 66.43 7.10 4.36 

1972 7.83 5.22 448.37 812.94 252.65 103.93 12.11 7.28 2.90 

1973 3.89 6.32 292.89 53.71 19.82 13.07 3.88 1.91 4.73 

1974 1.41 3.24 2.60 1,135.82 305.04 197.04 40.50 43.82 6.49 

1975 7.32 6.55 28.40 978.32 260.36 95.79 62.79 3.04 2.38 

1976 4.09 5.35 250.24 244.71 24.64 6.93 1.22 0.07 0.00 

1977 0.32 0.31 2.40 18.72 10.41 5.42 4.48 0.16 2.10 

1978 4.30 2.18 322.14 1,022.88 84.00 37.18 10.64 1.41 5.83 

1979 1.80 2.17 3.34 3,060.77 451.19 76.82 47.47 16.18 3.45 

1980 5.32 5.01 58.81 229.08 10.46 2.84 0.47 1.59 2.41 

1981 2.29 5.14 10.51 7.03 8.01 15.43 8.19 8.73 2.96 

1982 5.54 4.44 85.72 868.56 68.89 20.46 20.14 1.71 0.44 

1983 9.49 8.47 445.18 245.56 61.18 138.86 67.18 31.07 47.47 

1984 8.92 7.48 428.81 427.53 88.93 122.68 4.44 0.06 0.00 

1985 0.88 2.54 366.38 80.40 43.61 14.68 0.62 20.36 0.87 

1986 6.44 5.62 416.15 282.36 233.47 44.68 50.04 7.98 5.29 

1987 13.45 7.21 981.51 1,109.24 158.36 109.82 570.55 171.54 53.57 

1988 13.13 14.72 371.27 264.49 40.18 14.46 4.84 0.84 0.58 

1989 4.85 4.41 6.87 839.53 55.39 22.29 3.38 1.41 1.54 

1990 0.89 1.28 2.73 25.21 11.25 9.27 14.89 4.54 0.00 

1991 0.29 3.11 7.66 25.10 85.93 51.22 9.55 0.59 0.00 

1992 0.40 0.22 292.36 31.27 13.18 11.46 115.72 14.79 19.50 

1993 4.18 5.62 167.82 237.59 45.75 51.86 781.19 551.80 214.29 

1994 24.57 17.90 590.67 266.83 176.36 152.15 456.65 237.75 349.40 

1995 33.68 18.43 1,297.48 1,057.44 552.97 112.93 329.36 93.00 70.18 

1996 20.65 12.71 81.46 2,114.25 506.80 143.47 95.14 17.14 9.30 

1997 13.24 17.26 36.37 3,628.68 402.76 154.93 497.80 78.43 25.07 

1998 5.74 230.27 685.32 347.66 99.54 101.14 82.29 12.64 4.89 

1999 18.32 14.09 944.60 1,622.91 1,422.88 489.87 327.86 59.79 89.14 

2000 30.93 109.10 128.68 75.72 85.50 1,022.16 654.66 98.25 20.57 

2001 49.89 42.47 354.15 1,376.17 458.58 125.36 70.29 88.50 16.61 

pp
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Marsh River at th

1931 0.01 0.14 7.46 26.53 5.29 6.69 0.08 0.07 0.04 

1932 0.09 0.10 196.92 9.53 1.79 8.12 0.04 0.00 0.03 

1933 0.01 0.01 12.36 8.96 2.60 2.00 0.07 0.04 0.05 

1934 0.09 0.18 2.00 12.61 0.49 0.40 0.01 0.00 0.03 

1935 0.06 0.18 40.69 3.68 2.54 3.99 1.55 0.22 0.05 

1936 0.00 0.00 0.29 218.42 7.49 1.24 0.00 0.01 0.00 

1937 0.03 0.01 0.13 11.82 8.60 5.02 0.18 0.26 0.19 

1938 0.01 0.03 18.26 1.63 57.42 9.75 0.26 0.04 0.04 

1939 0.03 0.01 60.85 46.77 0.64 1.27 0.05 0.00 0.00 

1940 0.00 0.00 0.00 33.42 2.91 0.77 0.03 0.11 0.03 

1941 0.06 0.08 12.02 79.19 1.45 26.58 0.12 0.04 0.33 

1942 0.00 0.00 3.87 4.75 85.42 52.96 1.22 0.92 25.62 

1943 0.09 0.05 149.74 886.61 51.00 433.25 70.73 12.69 1.68 

1944 0.05 0.08 0.19 110.12 59.48 155.06 448.22 224.11 196.63 

1945 1.07 0.45 577.98 832.06 252.28 30.63 9.90 3.57 2.50 

1946 0.00 0.00 480.55 370.42 83.00 17.78 17.50 0.08 0.62 

1947 0.00 0.00 29.08 1,682.90 580.17 830.67 177.62 90.11 76.57 

1948 45.95 32.58 38.21 867.63 363.45 139.74 103.92 55.52 16.00 

1949 23.62 19.34 23.93 286.48 271.15 562.67 800.18 495.94 101.46 

1950 35.30 30.89 68.61 2,031.91 3,578.39 1,408.38 1,121.37 182.68 69.46 

1951 83.71 80.60 141.45 1,573.17 976.84 411.71 140.15 83.00 167.50 

1952 16.09 14.02 19.57 516.50 171.19 123.47 276.07 74.25 5.20 

1953 0.23 0.17 68.88 61.47 52.64 137.42 163.13 9.04 2.24 

1954 0.27 0.06 8.78 179.00 82.32 30.63 3.02 0.15 0.00 

1955 0.00 0.00 0.64 91.88 12.84 20.37 24.07 15.31 0.00 

1956 0.00 0.00 0.01 419.34 51.28 32.27 1.39 0.05 0.12 

1957 0.00 0.00 53.54 46.93 14.08 56.88 23.52 1.24 7.07 

1958 0.00 0.44 1.76 5.46 1.85 4.10 21.19 0.35 0.00 

1959 0.00 0.01 24.19 26.31 9.23 6.78 1.74 0.00 0.00 

1960 0.00 0.00 31.33 143.97 14.49 17.23 11.31 0.38 4.74 

1961 0.00 0.00 47.06 17.05 34.18 4.14 0.00 0.00 0.02 

1962 0.00 0.00 0.34 129.42 271.42 474.61 361.39 11.96 2.05 

1963 0.20 0.00 27.23 44.55 15.86 44.71 0.61 0.00 0.00 

1964 0.00 0.00 0.00 136.69 31.72 25.43 4.46 0.08 0.23 

1965 0.00 0.00 0.00 757.90 35.41 40.61 28.71 4.96 5.14 

Year January February March April May June July August September 
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Marsh River at the mout

1966 0.20 0.09 514.78 385.36 68.92 13.66 3.25 2.32 3.17 

1967 0.00 0.00 79.45 189.84 41.16 13.56 1.60 0.00 0.00 

1968 0.00 0.00 26.31 15.60 7.41 21.47 1.45 0.00 0.00 

1969 0.00 0.00 0.00 804.43 42.94 33.77 58.52 4.36 3.20 

1970 0.23 0.22 1.94 463.23 79.31 188.15 3.19 0.06 0.19 

1971 0.00 0.00 61.74 133.12 7.37 3.77 0.63 0.00 0.00 

1972 0.65 0.00 420.26 424.76 72.33 6.44 7.19 3.32 0.80 

1973 0.13 0.10 111.18 13.62 5.76 1.01 0.00 0.00 35.00 

1974 0.38 0.23 0.22 1,024.81 204.97 28.30 1.71 5.31 0.11 

1975 0.31 0.16 0.17 730.80 117.59 23.25 314.63 1.22 0.01 

1976 0.00 0.01 90.03 93.86 3.34 5.55 0.02 0.00 0.00 

1977 0.00 0.00 3.69 13.48 1.86 0.77 0.00 0.00 0.01 

1978 0.03 0.03 20.49 894.07 13.61 1.36 0.02 0.01 0.00 

1979 0.00 0.00 0.00 1,182.92 59.75 18.32 73.02 1.96 0.12 

1980 0.02 0.00 8.92 140.00 1.18 0.00 0.00 0.05 0.00 

1981 0.00 1.77 1.72 0.10 65.22 5.36 1.61 0.27 6.34 

1982 0.13 0.30 93.60 445.91 33.91 3.91 1.61 0.17 0.00 

1983 1.73 1.03 452.65 90.95 5.93 337.88 76.16 28.03 25.30 

1984 0.73 3.54 310.76 186.03 12.99 40.04 3.02 0.15 0.10 

1985 0.58 0.36 258.87 18.90 406.93 15.31 12.48 11.13 5.24 

1986 0.58 0.52 217.07 425.55 185.28 26.39 25.16 5.73 0.75 

1987 0.44 0.35 272.60 27.63 45.40 8.09 354.97 17.23 1.97 

1988 0.26 0.21 108.27 65.70 2.13 0.14 0.00 3.99 7.77 

1989 0.00 0.00 0.64 804.57 17.09 6.29 0.10 0.00 0.00 

1990 0.35 0.48 0.87 37.15 4.88 41.98 7.04 0.00 0.00 

1991 0.18 0.31 12.16 6.52 98.45 37.47 3.88 0.17 0.00 

1992 0.84 1.32 84.21 8.39 3.73 23.79 39.24 28.17 29.95 

1993 0.56 0.64 104.56 175.83 7.15 6.41 137.01 50.46 0.66 

1994 2.67 2.34 450.76 145.16 44.17 127.03 170.37 2.50 125.66 

1995 1.95 2.17 539.24 102.19 114.17 16.13 229.31 6.00 1.16 

1996 1.31 1.10 45.17 851.63 305.61 15.59 3.87 0.25 0.03 

1997 1.21 1.04 17.71 1,730.49 110.89 404.06 341.84 3.66 1.82 

1998 7.22 90.26 177.15 94.39 394.62 246.26 64.13 0.70 0.66 

1999 5.20 8.32 777.53 248.80 130.17 13.17 55.79 3.43 70.15 

2000 4.63 10.41 11.04 33.84 10.15 393.80 72.20 4.58 0.96 

2001 9.77 7.74 248.87 909.53 38.01 13.66 1.27 15.45 3.38 

pp
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Sand Hill River at t

1931 3.57 9.26 34.85 58.94 19.68 14.15 9.71 7.23 7.96 

1932 5.75 6.35 27.93 51.30 61.77 16.91 3.97 9.43 8.55 

1933 2.39 2.50 45.02 49.51 25.19 13.09 5.25 4.30 4.59 

1934 5.86 8.23 20.06 60.28 11.15 8.51 2.52 0.96 19.68 

1935 4.85 8.23 60.27 29.67 24.93 22.49 21.16 38.61 8.64 

1936 4.27 0.60 33.08 310.83 42.12 9.81 1.43 4.67 4.79 

1937 3.14 2.82 1.89 58.05 45.02 24.44 7.98 9.60 17.13 

1938 2.24 3.08 52.02 18.52 113.25 42.70 9.55 12.52 4.28 

1939 3.03 2.37 101.21 128.10 12.72 10.43 4.62 1.14 1.14 

1940 2.08 0.45 1.45 105.57 26.62 10.01 3.75 6.38 3.48 

1941 5.00 5.47 31.46 173.42 42.40 31.45 7.02 14.54 18.94 

1942 5.86 0.91 15.65 34.34 137.36 98.13 19.00 22.61 19.53 

1943 5.70 4.53 37.42 310.20 118.70 236.89 66.88 33.74 19.70 

1944 4.57 5.42 12.78 64.38 59.30 58.89 98.70 126.58 73.34 

1945 11.77 8.71 182.65 297.58 146.48 98.19 42.13 30.81 45.86 

1946 7.02 5.29 146.62 227.25 75.36 42.83 32.63 13.03 18.89 

1947 12.81 13.11 24.22 693.05 193.86 372.36 66.07 30.61 19.60 

1948 8.81 6.50 5.86 515.65 76.67 35.05 34.14 22.53 12.83 

1949 9.16 9.03 14.63 173.46 61.02 198.61 69.91 29.19 13.03 

1950 11.09 7.06 9.99 825.95 1,167.79 116.58 183.15 43.54 18.59 

1951 14.12 12.10 10.90 432.60 132.84 45.06 20.51 18.59 25.86 

1952 12.10 11.09 15.14 223.92 47.28 21.72 53.44 18.79 14.75 

1953 7.97 10.89 69.02 100.10 66.57 81.12 50.21 28.89 16.47 

1954 5.34 6.49 20.28 145.41 57.58 82.43 29.60 11.01 8.07 

1955 6.87 7.42 7.49 151.57 31.82 34.75 15.76 12.53 6.56 

1956 5.27 5.46 7.49 319.58 106.37 60.71 16.16 11.62 11.62 

1957 8.59 7.60 49.04 121.39 41.52 119.81 131.83 23.84 52.53 

1958 14.02 12.51 22.40 30.98 23.94 25.86 63.54 18.08 11.42 

1959 4.85 3.87 37.24 79.32 68.90 27.78 16.67 14.45 7.97 

1960 12.10 9.86 16.45 163.57 39.70 47.48 42.02 16.26 14.65 

1961 6.77 7.34 64.88 53.28 42.13 13.44 10.30 6.36 9.93 

1962 2.04 3.58 6.27 256.01 234.87 295.58 301.04 60.71 47.28 

1963 9.33 4.98 37.74 95.26 47.68 58.09 33.74 12.22 10.71 

1964 6.66 9.67 11.91 228.26 89.71 48.79 68.79 17.78 34.85 

1965 10.89 8.41 10.70 925.04 136.88 127.29 55.46 25.66 31.01 

Year January February March April May June July August September 
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Sand Hill River at the mo

1966 18.25 16.34 388.10 943.10 193.66 68.39 25.46 27.98 22.12 

1967 12.61 14.42 90.82 344.00 103.44 73.74 26.77 12.83 12.22 

1968 10.29 8.03 101.72 68.52 37.98 272.05 48.99 15.15 12.32 

1969 4.74 5.69 7.57 675.09 131.02 104.25 50.51 20.61 25.05 

1970 13.11 11.19 12.82 758.13 243.66 166.99 37.88 16.97 13.44 

1971 11.70 12.61 43.69 348.24 61.93 36.87 17.48 10.61 33.54 

1972 26.02 19.26 321.40 723.12 171.23 49.70 29.30 33.74 17.58 

1973 11.09 12.30 230.17 51.56 37.88 22.73 12.32 12.73 81.12 

1974 18.86 18.15 19.17 717.97 303.46 88.39 19.60 24.85 18.79 

1975 12.00 13.82 23.71 762.98 223.05 49.40 184.16 35.66 18.79 

1976 16.04 15.23 84.56 319.68 41.72 33.64 19.70 10.81 7.41 

1977 7.93 8.25 19.07 52.07 32.93 41.01 11.01 7.03 15.56 

1978 18.46 13.31 37.54 954.60 64.05 54.05 21.82 15.46 17.38 

1979 12.20 13.01 17.36 876.80 162.14 71.83 167.69 45.66 17.98 

1980 19.36 21.48 43.29 282.55 33.84 11.62 9.04 10.30 11.21 

1981 8.12 12.30 33.10 25.53 51.22 39.20 24.55 17.27 34.85 

1982 12.20 10.29 50.35 350.66 145.87 36.06 42.83 12.83 10.30 

1983 19.36 19.16 336.94 183.05 55.26 230.43 114.35 49.90 72.73 

1984 27.03 47.20 203.33 339.86 56.07 601.88 45.06 17.17 11.92 

1985 14.25 11.26 155.78 77.20 316.54 170.02 183.15 258.81 94.86 

1986 30.36 23.09 219.38 584.67 271.85 70.21 83.75 27.07 21.42 

1987 17.35 16.24 186.88 80.83 111.22 60.71 139.71 105.26 28.08 

1988 20.47 16.54 127.55 211.00 37.48 36.77 13.94 9.98 14.14 

1989 13.92 11.30 14.33 783.66 80.51 41.22 28.69 12.32 14.55 

1990 8.65 11.40 60.24 89.41 39.70 59.50 16.97 8.13 7.81 

1991 6.32 10.99 51.46 49.34 98.09 31.11 31.52 9.88 10.20 

1992 10.59 14.22 80.93 54.39 36.67 20.61 28.59 53.84 85.77 

1993 14.32 12.20 39.76 341.58 46.67 51.32 227.19 430.45 41.62 

1994 17.55 14.12 52.98 223.72 106.37 176.79 379.33 64.35 124.86 

1995 23.40 22.19 459.44 231.49 158.40 41.22 330.13 45.46 27.58 

1996 31.77 28.94 31.38 1,177.62 374.58 91.52 33.64 20.20 17.88 

1997 24.20 22.09 24.42 1,582.26 178.00 187.80 482.88 62.83 40.81 

1998 32.27 184.45 425.33 155.10 454.09 281.04 227.60 45.36 23.44 

1999 30.25 35.40 615.95 971.46 379.94 161.83 105.87 135.37 377.41 

2000 33.89 37.11 94.15 107.97 74.75 257.60 188.91 47.58 33.44 

2001 37.11 33.48 62.26 823.42 160.62 86.88 39.40 42.83 46.67 

pp
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Red Lake River at t

1931 127.17 160.23 285.23 391.53 252.68 245.90 84.81 33.33 23.06 

1932 56.96 60.84 237.60 1,403.98 347.32 88.53 40.66 20.87 13.99 

1933 24.77 31.66 117.12 659.23 177.60 134.10 40.11 16.83 14.54 

1934 16.80 19.92 141.59 542.54 167.87 87.87 48.31 13.44 9.69 

1935 17.34 22.83 369.45 562.78 309.95 173.77 98.69 35.08 61.97 

1936 34.24 26.92 26.95 1,478.67 513.88 99.78 28.63 14.43 11.37 

1937 21.32 19.17 28.36 437.00 782.74 418.04 769.62 1,268.86 631.26 

1938 63.53 86.90 670.71 317.38 3,637.18 1,137.71 380.00 118.91 155.52 

1939 169.17 152.91 217.15 714.11 451.37 338.80 197.16 101.53 257.49 

1940 168.96 187.15 201.34 2,182.28 1,098.37 526.56 236.61 163.50 156.39 

1941 225.49 228.07 213.14 2,865.33 806.89 2,771.60 553.77 333.55 974.87 

1942 482.53 514.62 1,689.75 3,151.10 3,091.82 892.25 313.99 373.23 1,394.54 

1943 391.11 363.86 572.63 4,293.12 2,480.89 3,769.42 1,547.55 1,017.16 1,039.90 

1944 445.27 483.07 534.64 1,438.62 1,343.18 2,495.10 1,621.87 2,084.16 1,675.42 

1945 764.23 753.79 3,686.93 5,631.07 3,170.51 1,521.32 940.77 626.01 1,059.24 

1946 613.15 583.75 3,918.58 4,185.96 1,907.11 1,107.11 835.09 382.84 507.65 

1947 534.65 489.21 686.83 4,613.54 3,615.32 6,089.65 2,701.65 1,028.64 1,238.26 

1948 983.05 686.92 731.54 7,092.42 3,725.70 1,170.50 1,043.39 720.55 619.57 

1949 378.62 380.77 515.69 2,800.38 1,372.69 3,203.30 1,326.78 2,161.76 1,377.06 

1950 715.56 705.76 858.95 6,235.09 16,710.47 5,138.83 3,936.63 1,825.15 2,045.91 

1951 1,790.78 1,576.49 1,765.53 6,032.67 4,661.23 2,127.88 1,328.97 571.37 797.05 

1952 1,227.60 1,302.98 1,275.16 3,502.91 2,122.42 1,865.58 2,542.09 938.58 655.30 

1953 395.63 404.57 910.37 963.63 1,128.97 1,368.31 1,133.34 494.43 429.29 

1954 316.27 326.07 446.52 2,013.42 1,426.24 1,321.32 736.40 474.10 391.81 

1955 346.31 363.33 395.65 2,806.87 772.24 1,221.86 532.24 295.74 282.52 

1956 243.47 248.43 249.08 3,689.10 2,720.23 926.34 955.74 329.18 1,412.03 

1957 248.86 127.50 724.51 2,717.03 1,390.17 3,056.85 3,642.64 1,502.74 2,391.27 

1958 890.55 835.63 1,083.56 1,061.91 530.39 659.68 1,674.33 398.04 113.44 

1959 79.58 90.24 323.01 1,644.29 749.18 525.80 347.32 199.56 140.88 

1960 198.78 190.17 206.75 2,468.06 826.12 1,030.28 459.78 77.05 93.01 

1961 69.46 73.55 438.95 715.95 622.52 101.53 98.03 57.60 201.97 

1962 85.07 88.30 111.50 3,083.99 5,158.50 7,874.36 4,148.66 2,081.98 1,894.00 

1963 1,058.75 949.88 1,367.17 3,455.28 2,266.68 2,427.34 1,360.66 712.68 873.45 

1964 586.02 552.53 391.43 1,993.93 1,428.42 2,737.72 1,264.49 824.59 507.65 

1965 670.12 683.36 687.92 7,924.85 4,174.89 4,225.16 1,981.43 868.97 1,245.91 

Year January February March April May June July August September 
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Red Lake River at the mo

1966 1,169.45 1,119.91 1,823.98 11,106.26 5,742.11 2,620.78 1,518.04 1,918.04 1,626.24 

1967 1,133.91 1,161.91 1,579.34 7,396.60 5,191.28 2,753.02 1,447.00 915.74 911.15 

1968 336.62 280.52 1,311.97 910.69 436.18 2,350.83 3,951.93 2,029.52 1,438.26 

1969 1,340.67 1,335.28 1,320.63 8,486.66 3,990.19 2,212.03 1,289.62 1,025.47 1,342.08 

1970 1,199.60 1,115.61 1,124.70 6,056.48 4,251.39 4,438.28 1,677.60 888.86 1,055.09 

1971 831.75 926.62 1,064.30 3,242.03 1,560.66 1,278.70 865.91 717.71 615.41 

1972 971.74 992.52 2,478.88 5,855.14 3,252.48 1,749.74 1,026.34 1,286.35 1,396.73 

1973 650.09 653.43 1,834.81 600.45 673.12 445.25 266.78 542.08 2,394.55 

1974 999.74 1,085.45 1,085.73 7,421.49 6,289.65 3,010.95 1,771.59 2,212.03 1,591.27 

1975 1,070.59 976.48 1,011.25 6,564.17 5,133.36 2,742.09 7,487.47 1,954.11 1,909.30 

1976 1,439.73 1,333.13 1,734.14 3,690.18 1,464.49 1,255.74 1,000.55 1,082.63 731.48 

1977 190.17 194.91 299.41 464.49 400.00 245.47 419.78 209.07 492.79 

1978 671.84 669.90 750.38 8,128.35 1,965.04 1,408.75 1,486.35 909.73 667.00 

1979 527.65 545.10 602.51 8,311.29 4,906.04 2,855.75 2,537.72 1,716.95 1,274.32 

1980 1,168.37 1,117.76 1,158.26 2,877.24 883.83 702.41 420.66 453.66 416.72 

1981 135.47 161.74 256.87 250.92 258.80 969.95 1,474.32 954.21 1,481.98 

1982 1,058.10 984.55 1,074.80 4,914.47 3,777.07 1,871.05 2,193.45 1,480.88 1,084.49 

1983 1,170.52 1,030.32 2,788.47 2,580.64 1,650.28 2,855.75 2,156.30 1,943.18 1,613.12 

1984 1,041.41 1,118.84 1,934.39 2,666.15 1,274.32 3,822.97 1,471.05 898.04 625.14 

1985 1,078.99 1,013.74 2,291.61 2,056.72 2,981.44 3,215.32 3,292.91 4,227.35 2,947.56 

1986 1,069.19 1,027.20 2,538.42 6,086.79 4,738.82 1,942.09 1,421.87 1,185.80 1,290.72 

1987 776.40 747.97 2,077.28 952.91 1,426.24 796.18 915.31 734.21 482.30 

1988 172.29 172.29 548.49 1,532.79 257.27 205.14 161.64 183.72 211.15 

1989 195.23 164.00 165.30 3,838.48 958.26 587.43 368.75 182.62 170.60 

1990 103.38 111.24 269.43 449.77 241.86 490.60 196.50 151.48 90.60 

1991 101.55 98.85 199.72 256.22 386.56 275.30 694.54 237.82 488.20 

1992 157.00 156.90 1,084.65 1,494.91 1,004.60 265.14 570.17 611.15 1,369.41 

1993 624.46 639.00 970.88 2,855.59 1,080.55 1,616.40 2,680.89 3,099.47 2,638.27 

1994 712.33 646.32 1,405.06 1,235.11 1,348.64 1,983.62 4,781.45 1,276.51 1,448.10 

1995 953.22 939.54 4,608.12 2,853.42 2,450.29 934.32 1,951.92 1,161.75 1,031.48 

1996 1,119.91 1,216.83 1,335.78 8,979.18 7,714.80 3,350.84 2,368.32 1,763.94 1,154.10 

1997 1,242.67 1,108.07 1,225.37 12,849.06 4,207.67 3,566.14 5,919.16 1,698.37 1,468.86 

1998 1,027.20 1,914.62 3,064.51 2,062.13 3,809.86 3,253.57 3,002.20 1,266.67 1,085.58 

1999 774.68 726.87 2,399.86 8,660.94 5,981.45 3,709.31 2,525.70 2,582.53 5,910.41 

2000 1,142.53 1,113.45 2,370.63 2,288.37 1,572.69 2,685.26 2,373.78 997.82 912.57 

2001 1,084.38 1,019.77 1,135.52 7,958.40 3,908.22 3,113.68 1,902.74 3,542.10 1,597.82 

pp
Gaged (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Red River of the North at Gran

1931 161.30 273.40 477.00 1,092.00 612.30 492.30 276.80 136.30 59.50 

1932 159.70 207.30 1,173.00 3,933.00 919.50 401.10 177.60 58.60 43.40 

1933 38.60 33.60 926.90 2,254.00 767.60 428.20 116.50 41.50 31.30 

1934 39.00 40.70 419.20 1,540.00 373.30 150.90 153.30 30.60 20.70 

1935 27.70 31.80 898.10 1,521.00 856.10 503.10 666.20 404.40 183.80 

1936 58.60 54.30 63.70 4,829.00 1,482.00 274.30 88.80 32.10 20.30 

1937 18.80 2.87 42.10 1,485.00 1,636.00 922.00 767.00 1,333.00 793.80 

1938 61.30 89.50 1,309.00 954.10 4,560.00 1,992.00 697.30 189.70 208.20 

1939 237.10 228.60 454.50 3,126.00 911.60 686.60 387.60 118.20 225.40 

1940 161.30 170.00 229.00 4,088.00 1,955.00 960.80 296.70 212.10 170.70 

1941 334.20 357.90 448.10 7,013.00 2,166.00 4,704.00 986.30 756.00 1,602.00 

1942 545.50 573.20 1,623.00 5,343.00 6,695.00 3,599.00 1,650.00 1,032.00 3,062.00 

1943 772.60 680.40 1,068.00 18,310.00 5,760.00 10,390.00 4,972.00 2,282.00 1,616.00 

1944 696.80 651.70 633.90 3,311.00 3,351.00 5,425.00 5,899.00 5,030.00 4,167.00 

1945 1,377.00 1,373.00 9,093.00 12,190.00 5,862.00 3,161.00 1,627.00 1,017.00 1,336.00 

1946 863.20 767.30 6,452.00 9,541.00 3,466.00 2,046.00 2,239.00 1,227.00 1,188.00 

1947 1,075.00 838.90 1,377.00 19,620.00 7,486.00 10,320.00 4,287.00 1,413.00 1,393.00 

1948 1,106.00 913.10 1,041.00 19,800.00 7,817.00 2,502.00 1,694.00 1,157.00 891.60 

1949 417.10 443.90 679.40 6,780.00 2,657.00 4,843.00 3,306.00 3,065.00 1,612.00 

1950 781.00 731.40 1,057.00 24,100.00 36,510.00 11,080.00 7,761.00 3,029.00 2,226.00 

1951 1,929.00 1,821.00 2,269.00 14,380.00 8,193.00 4,087.00 2,249.00 1,113.00 1,427.00 

1952 1,747.00 1,869.00 1,968.00 16,630.00 5,318.00 3,493.00 5,622.00 1,838.00 1,261.00 

1953 575.50 606.80 1,906.00 3,152.00 3,071.00 8,945.00 4,526.00 2,036.00 1,220.00 

1954 812.90 852.90 1,616.00 4,809.00 3,516.00 3,287.00 2,090.00 868.20 694.20 

1955 725.20 666.40 683.50 5,598.00 1,708.00 2,237.00 2,153.00 1,576.00 779.10 

1956 433.90 470.30 540.30 8,927.00 5,054.00 2,755.00 1,407.00 699.10 1,451.00 

1957 416.10 428.90 1,552.00 4,416.00 3,084.00 4,251.00 5,760.00 2,471.00 4,266.00 

1958 1,327.00 1,272.00 1,928.00 2,606.00 1,357.00 1,282.00 3,647.00 824.40 443.60 

1959 375.80 374.60 923.20 2,995.00 1,605.00 2,432.00 1,850.00 645.90 474.50 

1960 499.80 481.40 556.30 8,764.00 3,115.00 2,599.00 1,775.00 480.80 560.50 

1961 297.10 325.70 1,677.00 1,700.00 2,141.00 894.00 400.90 218.10 334.60 

1962 199.00 217.10 313.50 10,640.00 9,754.00 19,340.00 13,970.00 5,887.00 3,231.00 

1963 1,305.00 1,104.00 1,962.00 5,767.00 3,343.00 6,245.00 2,459.00 1,114.00 1,195.00 

1964 763.10 736.00 705.50 6,295.00 4,039.00 4,550.00 2,318.00 992.70 703.30 

1965 945.60 909.80 930.20 24,480.00 8,110.00 8,261.00 4,315.00 1,955.00 1,879.00 

Year January February March April May June July August September 
Gaged (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Red River of the North at Grand For

1966 1,892.00 1,812.00 10,250.00 25,360.00 10,870.00 5,228.00 2,956.00 3,495.00 2,308.00 

1967 1,703.00 1,602.00 2,708.00 16,920.00 9,270.00 5,987.00 3,153.00 1,178.00 861.70 

1968 591.90 540.00 1,877.00 2,541.00 1,880.00 4,580.00 4,193.00 2,155.00 1,550.00 

1969 1,495.00 1,512.00 2,111.00 28,690.00 12,070.00 4,518.00 3,246.00 1,503.00 1,432.00 

1970 1,411.00 1,536.00 1,676.00 14,150.00 8,235.00 9,791.00 2,897.00 1,091.00 1,159.00 

1971 1,100.00 1,154.00 2,423.00 7,096.00 3,035.00 2,175.00 2,124.00 1,028.00 1,235.00 

1972 1,827.00 1,480.00 8,595.00 15,700.00 7,597.00 5,197.00 2,276.00 2,267.00 1,905.00 

1973 1,124.00 1,162.00 5,467.00 1,959.00 1,356.00 1,029.00 559.80 736.70 3,067.00 

1974 1,701.00 1,658.00 2,048.00 16,670.00 13,150.00 5,928.00 2,860.00 2,699.00 1,793.00 

1975 1,301.00 1,434.00 1,740.00 18,740.00 14,640.00 6,173.00 25,270.00 3,004.00 2,228.00 

1976 1,705.00 1,699.00 3,704.00 9,237.00 2,515.00 1,556.00 1,106.00 976.30 700.20 

1977 215.00 215.40 493.50 1,336.00 834.40 549.20 592.40 227.30 593.90 

1978 1,285.00 1,113.00 2,504.00 30,180.00 4,977.00 3,151.00 3,065.00 1,405.00 972.60 

1979 683.50 683.00 962.30 31,480.00 18,330.00 5,958.00 5,773.00 3,300.00 1,941.00 

1980 1,341.00 1,404.00 1,853.00 8,707.00 1,848.00 1,451.00 669.40 456.10 767.40 

1981 292.40 386.20 936.50 978.90 1,352.00 1,270.00 2,415.00 1,468.00 1,804.00 

1982 1,136.00 1,071.00 2,380.00 17,400.00 6,015.00 3,353.00 3,200.00 1,898.00 1,268.00 

1983 1,600.00 1,473.00 7,695.00 7,047.00 2,994.00 5,036.00 6,028.00 2,614.00 2,486.00 

1984 1,679.00 1,813.00 5,607.00 15,460.00 3,846.00 11,530.00 3,062.00 1,482.00 954.80 

1985 1,388.00 1,357.00 5,792.00 4,898.00 9,056.00 7,508.00 6,016.00 6,473.00 4,702.00 

1986 1,889.00 1,828.00 6,540.00 19,580.00 14,630.00 6,191.00 4,369.00 2,407.00 3,175.00 

1987 1,715.00 1,790.00 8,049.00 7,556.00 3,460.00 2,481.00 3,323.00 1,914.00 1,015.00 

1988 452.70 520.00 2,939.00 4,320.00 1,096.00 641.80 295.70 312.70 373.10 

1989 278.30 357.90 507.40 21,850.00 3,328.00 2,047.00 862.00 443.50 944.50 

1990 189.90 258.20 1,067.00 2,476.00 1,502.00 2,078.00 946.10 452.50 356.70 

1991 195.00 304.00 764.30 1,587.00 2,821.00 2,008.00 3,027.00 1,035.00 1,352.00 

1992 519.00 524.20 4,219.00 2,692.00 1,975.00 1,982.00 2,691.00 1,441.00 2,118.00 

1993 809.50 1,090.00 2,192.00 13,760.00 3,398.00 4,493.00 12,220.00 17,050.00 6,251.00 

1994 1,570.00 1,519.00 6,458.00 12,460.00 6,496.00 5,752.00 12,930.00 3,590.00 3,910.00 

1995 1,819.00 1,785.00 15,370.00 18,530.00 10,110.00 4,175.00 7,299.00 2,665.00 2,120.00 

1996 2,030.00 1,922.00 5,037.00 28,330.00 20,570.00 7,563.00 3,750.00 2,657.00 1,677.00 

1997 1,873.00 1,874.00 2,250.00 56,210.00 24,940.00 8,483.00 13,680.00 3,264.00 2,411.00 

1998 1,891.00 3,520.00 13,930.00 8,980.00 13,090.00 9,073.00 12,620.00 2,972.00 2,054.00 

1999 1,722.00 1,656.00 11,740.00 25,690.00 16,450.00 9,802.00 6,602.00 5,348.00 11,340.00 

2000 2,021.00 1,865.00 8,005.00 5,409.00 4,094.00 11,430.00 10,460.00 2,862.00 2,795.00 

2001 2,656.00 2,504.00 3,279.00 37,540.00 14,690.00 9,235.00 5,637.00 5,554.00 2,645.00 

pp
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Turtle River at th

1931 0.87 0.87 6.65 34.16 6.14 7.75 3.26 2.59 0.47 

1932 0.29 19.97 221.56 208.88 29.94 16.71 2.79 1.04 0.55 

1933 0.00 0.00 57.56 106.43 20.19 9.90 4.05 2.02 4.21 

1934 0.58 0.47 28.43 40.69 4.00 5.70 3.22 2.73 3.32 

1935 0.29 0.43 63.64 39.56 23.36 64.81 13.08 2.19 0.56 

1936 0.29 0.29 1.29 173.27 17.87 5.74 2.00 1.61 0.16 

1937 0.16 0.29 0.68 21.59 10.94 13.84 4.88 4.80 2.46 

1938 0.16 0.16 33.75 10.58 8.42 3.46 0.19 0.01 0.00 

1939 0.00 0.00 87.50 45.11 2.50 13.20 0.76 0.00 0.00 

1940 0.00 0.00 0.00 147.15 12.66 3.95 2.00 5.51 0.02 

1941 0.00 0.00 24.26 396.43 17.77 51.09 9.32 2.51 3.06 

1942 0.11 0.13 9.92 222.06 69.56 31.83 8.56 4.66 3.26 

1943 0.60 0.45 178.39 119.85 34.83 67.65 18.74 3.42 0.63 

1944 0.26 0.18 2.45 71.60 20.29 24.13 8.28 19.59 13.47 

1945 0.87 0.85 87.09 48.08 21.79 20.73 8.51 2.55 1.41 

1946 0.11 0.11 158.55 39.95 9.01 5.82 54.96 0.33 6.55 

1947 0.21 0.11 82.71 217.90 23.59 67.33 9.49 9.84 1.74 

1948 0.13 0.11 0.11 1,313.50 78.32 100.99 24.16 11.45 2.51 

1949 0.15 0.11 0.11 434.00 32.86 38.93 9.62 3.49 0.47 

1950 0.11 0.00 0.00 2,242.20 1,667.17 55.99 48.44 10.21 22.44 

1951 5.71 2.24 46.49 238.10 27.60 16.15 4.52 13.74 47.52 

1952 0.83 0.11 2.02 188.56 16.95 8.02 46.95 4.24 0.80 

1953 1.29 0.90 20.42 30.69 30.11 102.71 48.66 4.66 1.19 

1954 0.31 1.37 30.02 51.12 18.89 23.36 12.94 2.36 1.79 

1955 1.21 0.75 0.06 253.90 21.64 126.07 12.02 4.16 0.79 

1956 0.39 0.53 0.76 364.60 71.68 49.01 8.02 2.47 5.15 

1957 3.24 0.72 51.01 45.81 18.55 15.92 1.88 8.08 246.53 

1958 2.53 4.71 13.77 26.18 16.26 15.92 22.44 1.25 0.36 

1959 0.02 0.00 43.33 67.14 18.89 12.82 8.95 3.31 0.21 

1960 2.72 2.05 42.09 484.66 27.94 20.27 8.13 2.31 1.40 

1961 0.88 0.62 40.62 29.23 16.72 3.93 1.32 0.76 1.34 

1962 0.00 0.00 0.00 405.45 152.40 194.43 23.59 3.97 5.36 

1963 0.54 0.00 24.26 51.91 15.92 14.31 11.56 3.71 0.74 

1964 0.00 0.00 0.08 167.35 23.02 308.13 23.82 8.71 16.15 

1965 1.33 1.66 2.36 629.33 98.36 83.36 22.21 7.43 37.44 

Year January February March April May June July August September 
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Turtle River at the mout

1966 5.42 1.86 540.75 445.84 169.58 39.73 52.10 25.31 9.23 

1967 4.51 5.42 108.78 604.05 218.70 36.76 7.57 2.58 0.95 

1968 2.18 1.94 113.75 56.65 23.13 61.95 66.30 15.11 15.46 

1969 1.99 0.20 0.09 712.83 36.18 43.40 18.32 4.89 12.48 

1970 4.75 0.94 2.16 702.45 180.46 65.04 17.18 14.77 12.37 

1971 4.10 5.55 71.04 378.89 58.92 55.71 36.05 6.78 4.73 

1972 8.00 5.52 331.16 547.88 159.38 70.55 12.60 6.87 3.26 

1973 4.21 6.58 223.95 57.73 22.06 16.33 6.24 3.08 5.10 

1974 1.66 3.56 2.91 722.73 184.51 110.81 26.55 8.04 6.82 

1975 7.52 6.80 26.26 638.68 163.14 66.61 34.82 4.08 2.71 

1976 4.41 5.64 193.81 202.70 26.13 10.44 3.06 5.10 2.03 

1977 0.43 0.41 2.72 24.11 13.39 8.78 6.81 1.56 2.42 

1978 4.61 2.47 244.42 662.68 67.75 34.16 11.63 2.58 6.18 

1979 2.07 2.46 3.68 1,642.59 250.08 57.00 29.29 11.10 3.81 

1980 5.61 5.32 51.25 191.91 13.43 5.56 1.69 2.76 2.75 

1981 2.59 5.44 10.54 10.72 10.92 18.36 9.89 7.67 3.31 

1982 5.82 4.76 72.43 578.74 58.09 22.41 17.26 2.90 0.58 

1983 9.55 8.61 329.00 203.29 52.96 86.55 36.30 16.41 42.42 

1984 9.02 7.68 317.86 321.76 70.82 79.32 6.78 4.89 0.54 

1985 1.07 2.84 275.09 80.64 40.72 17.73 2.02 4.90 1.08 

1986 6.69 5.91 309.22 228.20 149.90 38.89 30.26 7.27 5.66 

1987 13.17 7.42 680.12 708.69 110.87 73.35 136.03 3.92 47.40 

1988 12.87 14.30 278.45 216.19 38.21 17.54 7.16 1.88 0.73 

1989 5.16 4.72 7.13 562.67 49.03 23.81 5.73 2.58 1.82 

1990 1.09 1.52 3.06 30.85 14.21 12.81 14.31 5.19 0.02 

1991 0.39 3.44 7.88 30.75 68.95 42.81 10.88 5.76 4.49 

1992 0.52 0.30 223.58 36.88 16.08 14.89 50.78 10.51 18.73 

1993 7.28 8.42 81.38 112.78 25.89 28.58 189.93 174.81 154.72 

1994 15.87 18.71 357.69 197.23 61.52 78.50 60.07 30.86 108.33 

1995 24.03 18.90 478.71 349.27 163.22 48.88 71.25 33.76 20.92 

1996 19.63 17.70 22.02 658.13 157.00 65.87 66.07 21.13 11.85 

1997 14.11 20.91 113.55 1,005.10 191.80 37.49 348.39 68.56 29.20 

1998 14.77 59.26 239.35 184.78 42.25 35.21 52.40 11.33 5.80 

1999 17.69 19.63 267.89 412.45 397.89 131.11 96.31 136.91 56.13 

2000 16.62 14.86 32.17 35.04 35.00 1,911.77 168.81 38.94 32.31 

2001 24.77 23.85 149.17 333.18 101.49 37.90 26.51 28.38 18.04 

pp
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Forest River at th

1931 2.70 2.29 12.31 42.73 26.85 12.69 8.92 2.98 1.32 

1932 0.15 9.16 35.92 161.95 55.77 21.51 9.63 0.74 0.30 

1933 0.00 0.00 88.08 273.47 45.68 20.37 6.22 3.04 5.08 

1934 1.99 0.78 35.92 69.97 20.18 9.56 1.66 0.00 0.00 

1935 0.22 0.65 99.26 71.56 27.41 16.60 13.00 5.00 2.97 

1936 0.00 0.00 0.00 190.01 34.07 15.86 2.66 0.00 0.00 

1937 0.00 0.00 0.00 25.22 19.41 12.26 0.97 0.21 0.00 

1938 0.00 0.00 42.80 19.53 17.25 4.59 2.66 0.00 0.00 

1939 0.00 0.00 36.58 67.48 13.19 3.06 24.93 0.00 0.00 

1940 0.00 0.00 0.00 74.05 21.32 5.92 0.00 25.13 0.42 

1941 0.00 0.00 0.00 619.75 41.30 42.07 14.26 6.74 17.30 

1942 0.55 0.00 225.52 630.40 74.04 27.60 14.01 28.93 8.93 

1943 2.17 1.90 253.94 175.09 44.92 365.46 346.42 38.64 18.27 

1944 1.18 0.05 0.44 164.26 41.88 48.73 18.08 6.72 13.10 

1945 3.54 2.28 127.46 67.29 29.84 22.56 8.30 4.31 1.47 

1946 0.70 0.27 220.35 60.03 15.74 13.21 7.96 0.00 4.42 

1947 0.69 0.03 128.03 137.56 25.53 23.01 29.10 7.97 5.42 

1948 4.80 1.05 0.25 1,691.40 157.80 60.12 27.76 14.12 7.04 

1949 1.58 0.70 0.85 686.38 55.67 25.83 16.63 4.90 0.97 

1950 0.97 0.97 1.13 2,237.66 2,248.95 80.31 42.01 11.95 13.26 

1951 5.07 6.25 44.38 282.66 40.67 23.01 9.62 13.84 12.50 

1952 1.53 0.95 5.08 136.56 24.35 11.24 43.20 7.94 4.47 

1953 0.80 0.11 4.24 31.15 24.49 76.30 14.99 3.18 0.40 

1954 0.39 0.32 35.14 56.62 27.17 65.02 14.84 16.48 9.55 

1955 1.82 0.71 0.05 414.10 32.81 137.16 16.63 4.23 2.51 

1956 0.73 0.66 0.83 727.34 130.48 309.95 39.64 16.33 20.78 

1957 6.21 2.13 67.00 36.70 30.28 22.12 9.57 11.55 84.02 

1958 3.64 1.17 8.54 35.42 24.20 60.71 19.00 5.64 3.07 

1959 0.37 0.14 15.36 152.50 27.31 16.33 8.48 3.19 0.65 

1960 2.60 1.37 29.30 861.92 45.57 22.56 6.87 2.82 1.39 

1961 0.88 0.00 33.29 34.71 17.22 7.69 8.37 0.76 0.00 

1962 0.26 0.00 0.00 566.74 93.82 395.61 29.99 17.52 12.19 

1963 1.31 0.00 60.03 49.08 28.06 33.70 39.34 5.54 1.18 

1964 0.21 0.13 0.37 197.31 41.56 395.76 74.97 17.96 15.44 

1965 5.27 3.85 4.04 684.95 93.52 106.73 34.74 17.07 23.75 

Year January February March April May June July August September 
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Forest River at the mout

1966 6.89 2.97 623.36 506.14 339.20 85.06 54.18 26.13 14.67 

1967 4.92 3.45 176.25 510.41 312.77 58.49 25.83 13.21 8.48 

1968 2.81 2.15 94.60 65.44 31.62 27.76 24.64 17.52 15.59 

1969 1.14 0.57 0.65 741.85 79.12 29.99 18.26 6.98 7.63 

1970 7.48 3.14 1.13 682.11 207.08 62.20 59.08 16.92 9.69 

1971 1.25 1.32 10.60 728.77 88.33 45.13 99.61 31.17 17.22 

1972 1.11 0.36 383.80 506.85 106.73 46.32 14.84 6.69 6.56 

1973 0.56 0.73 84.64 56.76 28.06 42.16 9.13 2.18 6.62 

1974 3.54 0.82 1.30 940.01 721.00 261.71 40.82 29.10 11.28 

1975 8.14 5.11 7.75 405.71 241.08 42.90 161.06 13.78 9.71 

1976 5.00 5.75 153.78 551.38 51.36 25.98 12.62 4.31 2.27 

1977 0.00 0.00 15.65 46.80 26.27 16.18 10.08 4.66 6.18 

1978 1.33 0.23 105.98 704.73 83.72 90.85 39.19 12.13 12.83 

1979 2.78 1.88 1.42 1,691.40 538.86 94.41 94.11 17.96 25.53 

1980 1.45 1.85 11.61 99.86 18.70 10.88 2.78 1.96 4.42 

1981 5.70 24.04 47.37 55.19 22.56 31.92 18.26 7.17 22.71 

1982 2.14 0.42 47.80 468.30 93.52 89.07 350.03 143.10 20.63 

1983 13.43 17.37 337.00 280.67 77.93 48.39 27.76 11.76 25.38 

1984 1.09 6.23 75.82 126.61 39.64 38.60 14.73 4.65 5.60 

1985 0.17 0.00 249.51 90.62 46.32 39.34 7.79 9.03 12.66 

1986 8.85 7.07 270.28 160.89 127.96 24.05 89.22 31.17 18.56 

1987 13.41 10.16 173.98 1,207.17 121.58 42.46 40.53 22.27 11.40 

1988 8.78 0.94 56.90 140.40 104.95 44.53 7.02 3.13 0.38 

1989 1.58 1.53 1.42 128.88 45.87 12.97 3.44 0.22 0.02 

1990 0.00 0.00 0.85 37.70 16.63 12.29 4.08 0.03 0.00 

1991 0.00 0.00 4.08 32.72 20.78 6.25 21.52 9.56 18.26 

1992 9.92 8.31 265.59 86.35 35.63 22.27 10.09 5.18 0.94 

1993 2.20 3.81 18.64 138.84 35.18 32.36 196.84 486.31 102.43 

1994 8.60 6.34 217.79 234.29 77.93 128.11 96.19 20.34 22.12 

1995 9.23 8.38 557.78 438.71 213.32 91.89 112.97 29.99 16.63 

1996 11.86 5.48 164.87 1,142.02 567.06 139.39 46.46 22.71 10.36 

1997 4.43 3.98 3.97 1,479.44 478.14 86.99 517.33 107.03 42.31 

1998 21.96 69.77 351.65 343.69 52.85 55.22 55.22 17.37 10.47 

1999 13.90 14.45 374.55 681.82 300.16 117.27 77.19 48.10 30.43 

2000 16.26 15.43 33.57 25.32 21.67 97.08 37.26 14.50 11.82 

2001 17.79 15.98 80.23 396.89 97.38 53.44 35.63 39.49 12.72 

pp
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Snake River at th

1931 2.14 1.96 48.84 47.39 45.13 7.08 4.21 0.88 0.46 

1932 0.03 0.98 25.61 427.32 77.02 25.47 1.22 0.15 0.19 

1933 0.00 0.00 64.40 826.05 79.05 10.67 2.22 0.92 6.65 

1934 1.44 1.38 25.61 209.61 8.22 4.25 0.08 1.03 0.38 

1935 0.03 0.06 107.38 182.40 22.41 244.79 8.38 2.22 0.23 

1936 0.18 0.00 0.30 505.85 43.37 4.28 0.15 0.04 0.04 

1937 0.18 0.03 0.13 236.31 74.96 18.62 19.24 4.97 1.57 

1938 0.00 0.00 84.95 23.16 21.72 1.84 19.08 0.00 0.00 

1939 0.00 0.00 15.45 78.46 7.84 17.17 0.57 0.00 0.00 

1940 0.00 0.00 0.00 115.82 15.68 2.29 0.61 1.22 0.00 

1941 0.00 0.00 0.79 1,092.34 62.87 164.60 6.27 1.03 119.93 

1942 1.07 0.28 180.48 1,536.04 204.90 74.69 14.23 13.84 13.50 

1943 1.93 1.59 369.34 398.73 105.74 1,206.25 65.13 13.73 4.05 

1944 2.17 1.04 0.70 280.62 26.12 75.95 157.83 277.87 80.35 

1945 11.87 16.94 574.21 731.76 168.17 52.29 49.57 29.08 39.19 

1946 2.63 2.69 342.60 188.33 34.72 40.35 12.73 1.57 3.67 

1947 0.55 0.31 8.67 398.13 35.49 2,962.55 63.37 11.01 4.02 

1948 4.07 1.59 0.99 2,801.88 718.20 27.08 14.11 5.47 1.53 

1949 3.70 3.70 0.66 1,383.45 177.56 849.83 72.05 9.90 1.57 

1950 2.60 2.08 0.40 3,107.58 6,373.61 294.89 643.70 24.55 3.56 

1951 9.82 8.41 13.77 1,114.87 275.35 27.46 5.85 11.59 105.17 

1952 3.15 5.90 11.32 587.39 74.96 13.39 23.06 1.51 0.00 

1953 0.00 0.00 51.95 109.87 84.13 64.63 13.19 0.94 0.00 

1954 0.00 0.00 0.00 83.23 67.73 86.27 10.65 0.32 0.00 

1955 0.04 0.00 0.00 113.60 40.67 233.81 15.01 0.63 0.00 

1956 0.07 0.00 0.00 212.58 224.28 45.77 531.93 20.08 12.46 

1957 5.93 4.77 131.71 227.01 160.62 247.43 335.01 14.42 624.89 

1958 7.65 5.20 12.44 40.37 20.35 18.55 713.99 20.19 0.59 

1959 0.61 0.00 5.33 691.63 114.35 60.04 38.13 16.67 9.29 

1960 6.42 3.39 5.56 1,016.26 190.83 188.15 39.77 3.39 0.85 

1961 1.00 0.59 76.11 90.34 41.30 2.96 0.00 0.00 5.62 

1962 1.15 0.39 0.00 810.43 1,143.08 1,842.92 167.89 28.07 29.06 

1963 1.24 0.00 61.88 624.12 159.47 117.02 26.31 17.86 0.55 

1964 0.00 0.00 0.00 244.22 170.56 1,170.61 154.50 107.84 32.24 

1965 7.83 3.58 4.53 1,910.41 607.29 390.46 352.60 19.20 30.44 

Year January February March April May June July August September 
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Snake River at the mout

1966 12.39 5.87 307.76 2,472.31 886.85 125.05 409.96 92.55 18.13 

1967 1.99 1.62 51.62 1,563.60 903.29 80.31 18.78 0.60 0.00 

1968 0.00 0.40 86.04 63.54 15.45 889.91 783.98 107.46 106.70 

1969 2.75 5.05 9.83 1,828.67 241.69 180.12 43.98 4.51 0.83 

1970 1.09 0.11 0.00 1,001.37 1,263.16 2,523.25 97.14 10.52 3.34 

1971 4.74 4.40 20.42 536.09 106.31 46.27 12.96 1.00 0.34 

1972 1.10 0.18 68.17 700.89 137.67 66.54 8.49 0.07 0.09 

1973 0.00 0.00 115.16 21.25 12.62 1.40 0.00 0.09 0.30 

1974 0.32 0.17 0.00 1,410.39 733.11 172.09 11.51 1.89 1.34 

1975 2.43 1.16 4.10 742.92 481.09 175.92 2,629.95 42.07 5.89 

1976 5.17 5.50 69.82 625.77 62.34 12.58 4.97 0.27 0.00 

1977 0.00 0.00 2.47 34.09 16.75 12.43 0.85 1.22 0.28 

1978 3.79 2.54 44.34 1,585.78 446.29 187.01 234.43 27.19 4.09 

1979 2.66 1.88 4.70 2,022.59 484.92 182.42 47.04 6.16 2.55 

1980 3.88 3.18 6.62 372.62 25.70 3.03 0.07 0.53 2.27 

1981 0.04 1.55 18.23 17.80 8.11 32.12 81.46 0.17 2.96 

1982 0.31 4.07 30.97 940.15 391.22 61.95 200.01 44.74 1.89 

1983 14.22 10.15 718.43 515.24 216.84 234.43 75.34 3.82 1.20 

1984 5.02 3.21 190.94 373.28 85.66 346.86 11.82 0.56 0.05 

1985 0.43 0.43 227.34 275.33 160.24 969.45 284.91 112.82 137.29 

1986 11.35 10.09 412.99 1,040.09 708.26 131.56 10.67 2.08 0.71 

1987 1.83 1.83 391.15 387.51 74.96 34.65 6.00 1.30 0.09 

1988 0.27 0.18 1.16 189.62 45.89 102.87 3.27 0.03 0.04 

1989 0.03 0.04 0.07 764.76 108.61 107.46 11.28 0.33 0.01 

1990 0.00 0.00 31.83 44.01 10.48 17.94 8.60 0.07 0.00 

1991 0.00 0.04 0.28 0.65 17.71 13.96 155.27 12.93 1.35 

1992 2.58 1.35 283.27 340.19 146.47 19.89 46.66 1.93 2.60 

1993 2.31 2.11 29.82 398.43 61.57 197.33 374.40 1,011.52 1,041.73 

1994 8.17 3.43 158.51 176.38 117.41 41.68 556.81 93.31 529.66 

1995 26.82 11.38 1,108.59 452.70 414.55 46.27 358.72 43.98 38.63 

1996 7.52 4.31 4.90 1,902.14 3,425.78 55.07 40.92 13.12 4.40 

1997 8.41 7.16 8.21 3,195.38 579.38 66.54 907.50 15.87 11.59 

1998 14.37 91.74 845.17 439.46 410.34 719.73 761.41 17.67 12.66 

1999 6.18 8.44 275.33 2,956.78 1,182.85 2,003.15 642.10 494.48 683.78 

2000 10.95 213.46 301.80 426.89 131.17 967.54 231.37 90.25 25.09 

2001 19.66 17.10 88.03 2,200.63 550.70 241.69 31.67 386.25 14.57 

pp
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Park River at the 

1931 0.03 0.58 39.10 186.92 18.30 4.45 1.44 0.28 0.15 

1932 0.00 2.75 21.07 259.92 31.77 8.17 0.39 0.00 0.00 

1933 0.00 0.00 56.20 578.00 32.65 17.86 0.73 0.29 0.00 

1934 0.00 0.07 21.07 109.59 3.16 0.60 0.02 0.00 0.12 

1935 0.00 0.00 96.80 92.59 8.89 5.72 2.93 0.73 0.00 

1936 0.00 0.00 0.00 318.92 17.57 19.03 0.05 0.00 0.00 

1937 0.00 0.00 0.00 126.73 30.89 5.40 6.95 1.71 0.00 

1938 0.00 0.00 75.45 7.59 8.61 0.51 6.90 0.00 0.00 

1939 0.00 0.00 12.32 33.30 3.00 4.14 0.18 0.00 0.00 

1940 0.00 0.00 0.00 53.39 6.15 0.55 0.20 0.40 0.00 

1941 0.00 0.00 0.53 811.08 25.76 17.57 2.17 0.34 46.55 

1942 0.00 0.00 168.17 1,226.24 87.25 24.01 5.09 4.95 4.82 

1943 0.13 0.15 360.23 238.98 44.06 296.15 220.46 18.59 0.37 

1944 0.01 0.00 0.46 156.09 10.41 12.18 3.54 16.69 11.43 

1945 0.36 0.31 576.03 188.69 83.00 46.11 10.75 1.24 0.89 

1946 0.14 0.17 332.55 96.24 13.97 7.22 1.86 0.19 0.55 

1947 0.00 0.00 6.66 238.56 14.27 30.45 90.76 18.59 5.48 

1948 0.67 0.16 0.65 2,541.56 318.40 55.34 66.17 44.65 3.41 

1949 0.31 0.27 0.44 1,080.13 75.24 16.83 3.34 1.68 0.09 

1950 0.14 0.14 0.24 2,881.56 3,031.73 95.15 31.03 18.88 1.84 

1951 1.51 0.78 17.00 465.18 49.48 9.41 1.03 4.36 60.46 

1952 0.13 0.00 0.28 65.89 12.06 0.58 0.33 0.00 32.35 

1953 0.28 0.00 3.12 11.37 7.70 14.79 1.68 0.07 0.29 

1954 0.02 2.05 8.29 22.62 19.91 191.62 27.81 8.84 7.13 

1955 0.27 0.27 1.12 625.63 67.92 112.43 15.37 1.90 17.27 

1956 0.00 0.00 16.72 1,424.62 654.07 240.52 28.69 4.95 10.98 

1957 2.17 7.49 80.78 67.44 33.38 15.22 2.75 6.82 221.34 

1958 2.32 1.87 5.10 25.29 5.80 3.92 4.17 0.11 0.00 

1959 0.55 0.00 0.93 341.40 39.53 8.56 4.80 0.05 0.01 

1960 0.06 0.02 1.46 1,323.47 50.07 16.54 1.54 0.04 0.62 

1961 0.00 0.00 4.45 17.70 3.41 0.00 0.09 0.08 0.06 

1962 0.12 4.01 14.33 1,006.79 151.22 340.80 27.23 16.10 0.17 

1963 0.00 0.33 42.57 36.11 12.79 154.15 25.18 12.93 0.00 

1964 0.10 1.02 1.02 311.34 85.35 843.06 93.98 3.85 1.70 

1965 0.15 2.03 8.19 1,254.06 238.18 124.72 32.21 14.54 55.34 

Year January February March April May June July August September 
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Park River at the mouth

1966 2.87 0.27 418.11 895.66 645.58 124.29 199.09 48.75 2.97 

1967 1.55 1.83 155.25 894.53 750.98 34.11 2.90 0.12 0.00 

1968 0.03 2.31 117.17 65.19 74.51 33.96 13.76 0.39 0.16 

1969 0.11 3.13 11.27 1,207.56 44.80 21.23 10.42 0.61 3.29 

1970 0.37 0.17 0.84 890.32 304.05 56.65 21.96 0.43 0.01 

1971 0.01 0.87 23.88 1,230.88 84.03 110.96 109.35 7.26 0.05 

1972 0.00 5.30 450.85 586.43 83.74 13.99 0.32 0.04 2.80 

1973 0.99 0.43 88.09 39.62 18.15 13.83 0.56 1.34 0.83 

1974 2.20 2.50 11.94 1,514.54 1,006.72 147.41 8.17 6.65 1.12 

1975 6.99 4.52 5.10 345.48 213.58 22.54 116.53 0.73 0.40 

1976 7.10 6.25 47.49 762.05 39.09 119.60 5.40 0.59 0.55 

1977 3.01 2.75 8.51 12.41 7.11 2.25 0.19 0.13 0.08 

1978 3.30 1.99 27.82 1,214.72 144.78 32.79 6.75 0.51 2.96 

1979 1.26 1.06 3.33 2,037.18 417.21 68.80 79.34 9.08 6.53 

1980 3.35 1.81 3.22 129.82 18.01 35.87 0.98 2.94 57.97 

1981 7.45 62.78 158.06 152.02 41.43 74.22 86.52 13.89 15.66 

1982 7.40 4.64 40.74 698.96 163.22 143.46 372.27 56.51 2.15 

1983 19.10 14.29 561.42 449.44 85.35 108.47 29.86 0.95 0.20 

1984 0.65 2.35 51.56 109.02 30.89 25.03 3.29 1.86 0.09 

1985 0.00 0.16 306.00 96.24 30.89 19.62 3.31 37.04 3.21 

1986 11.33 15.39 320.47 274.25 156.49 26.64 81.10 33.96 12.22 

1987 0.47 2.72 136.70 1,388.51 69.54 20.93 13.75 6.73 0.12 

1988 0.16 1.01 5.41 59.85 11.55 8.08 1.43 0.27 0.00 

1989 0.00 0.00 3.26 45.66 15.96 2.27 0.43 0.04 0.00 

1990 0.02 0.00 0.50 13.49 6.47 2.43 0.00 0.00 0.00 

1991 0.00 0.00 0.00 0.00 7.48 2.46 23.42 3.28 1.65 

1992 13.88 6.51 502.55 305.72 52.85 34.11 8.15 6.37 0.30 

1993 0.14 14.84 29.08 128.97 86.96 39.38 583.22 832.37 106.57 

1994 9.04 8.04 279.59 311.20 160.30 52.99 31.03 3.07 0.19 

1995 1.13 1.10 919.12 608.34 175.38 43.48 62.95 34.26 7.22 

1996 0.25 9.00 13.04 1,506.11 724.19 105.40 15.08 10.10 0.58 

1997 2.93 3.15 13.07 2,520.49 587.17 63.39 645.43 30.30 5.21 

1998 8.74 33.11 711.47 972.23 141.27 185.48 149.46 6.75 3.40 

1999 3.50 3.75 219.31 855.76 338.89 121.80 37.92 19.47 4.25 

2000 3.08 3.41 11.35 8.36 8.99 52.11 33.96 3.94 0.91 

2001 6.70 5.45 47.21 1,004.54 253.25 103.79 21.52 38.35 0.02 

pp
Gaged (intermittently April 1936 through July 1948 and continuously April 1949 through December 2001) and estimated (January 1931 t

missing data for November 1936 through March 1949) historic streamflow, in cubic feet per second, for the Red River of the North a

1931 157.52 271.28 492.19 1,164.16 638.05 576.97 336.18 154.88 64.30 

1932 155.93 206.07 1,254.05 4,410.11 973.64 512.41 218.16 66.87 46.92 

1933 36.58 33.81 981.79 2,472.58 807.04 895.42 144.65 47.44 33.85 

1934 36.97 40.90 430.35 1,664.17 381.48 172.12 189.02 35.03 22.40 

1935 26.07 32.01 950.10 1,642.83 903.96 383.56 791.20 457.01 198.33 

1936 56.03 54.46 60.71 5,768.00 1,826.00 398.90 117.80 50.10 27.40 

1937 17.55 2.94 39.48 1,729.00 1,952.00 968.40 907.65 1,497.40 854.95 

1938 58.66 89.47 1,405.51 1,011.75 5,143.08 2,247.97 827.17 215.20 224.63 

1939 233.42 227.10 468.08 3,473.63 964.95 575.75 466.73 134.41 243.16 

1940 157.52 169.22 229.56 4,590.91 2,132.59 918.91 359.72 240.47 184.22 

1941 331.39 354.50 461.23 8,045.07 2,372.32 4,585.54 1,159.70 851.67 1,723.84 

1942 546.49 565.98 1,757.49 11,400.00 7,003.00 3,636.46 1,914.79 1,160.78 3,292.12 

1943 779.66 671.07 1,137.58 20,640.00 6,556.61 10,763.80 5,609.86 2,556.52 1,738.88 

1944 701.65 642.95 661.46 3,687.55 3,733.87 6,023.03 6,626.84 5,612.72 4,478.38 

1945 1,406.51 1,347.89 10,538.52 15,870.00 6,780.00 3,504.00 1,888.78 1,143.99 1,437.95 

1946 873.12 756.18 7,377.23 12,430.00 3,687.00 2,132.00 2,578.17 1,378.91 1,278.85 

1947 1,092.36 826.25 1,481.48 23,438.78 10,360.00 11,140.00 5,267.00 1,762.00 1,499.22 

1948 1,124.53 898.83 1,107.70 23,662.34 12,700.00 3,096.00 2,067.00 1,300.62 960.14 

1949 415.51 439.05 710.88 11,440.00 2,977.00 5,460.00 3,425.00 3,265.00 1,737.00 

1950 798.00 729.60 979.00 31,120.00 58,890.00 15,360.00 8,463.00 3,325.00 2,300.00 

1951 1,974.00 1,830.00 2,281.00 17,170.00 9,022.00 4,466.00 2,441.00 1,245.00 1,711.00 

1952 1,639.00 1,876.00 1,989.00 16,590.00 6,534.00 3,559.00 5,676.00 2,121.00 1,322.00 

1953 599.70 619.30 1,669.00 3,643.00 3,068.00 8,839.00 5,236.00 2,229.00 1,320.00 

1954 809.70 845.40 1,597.00 5,472.00 3,862.00 3,693.00 2,237.00 981.30 691.50 

1955 722.60 652.50 661.00 7,273.00 2,084.00 3,016.00 2,271.00 1,684.00 862.70 

1956 423.50 451.00 523.90 10,930.00 8,233.00 3,963.00 2,503.00 908.00 1,616.00 

1957 441.00 426.80 1,320.00 4,856.00 3,728.00 3,833.00 6,863.00 2,614.00 5,392.00 

1958 1,356.00 1,286.00 1,894.00 2,986.00 1,527.00 1,476.00 3,990.00 976.90 479.90 

1959 368.40 382.90 775.80 5,005.00 1,769.00 2,587.00 2,132.00 776.50 547.80 

1960 572.90 563.40 544.80 13,490.00 3,778.00 2,807.00 2,151.00 563.70 684.00 

1961 337.10 336.40 1,667.00 2,097.00 2,375.00 1,060.00 472.00 260.60 368.20 

1962 200.50 203.00 279.50 14,090.00 9,922.00 23,420.00 14,970.00 6,987.00 3,390.00 

1963 1,343.00 1,120.00 1,743.00 6,430.00 3,511.00 6,511.00 2,850.00 1,172.00 1,197.00 

1964 774.20 763.60 694.80 7,567.00 4,700.00 7,483.00 3,227.00 1,301.00 694.70 

1965 884.80 872.90 987.40 25,310.00 13,030.00 9,178.00 5,034.00 2,042.00 1,915.00 

Year January February March April May June July August September 
Gaged (intermittently April 1936 through July 1948 and continuously April 1949 through December 2001) and estimated (January 1931 t

missing data for November 1936 through March 1949) historic streamflow, in cubic feet per second, for the Red River of the North at Dray

1966 2,065.00 1,826.00 7,663.00 38,390.00 14,400.00 5,895.00 3,581.00 3,512.00 2,431.00 

1967 1,710.00 1,550.00 2,213.00 22,710.00 14,520.00 5,993.00 3,278.00 1,315.00 876.20 

1968 524.50 535.50 1,713.00 3,531.00 2,185.00 5,594.00 5,739.00 2,570.00 1,899.00 

1969 1,525.00 1,576.00 2,153.00 27,480.00 18,730.00 5,060.00 3,548.00 1,666.00 1,471.00 

1970 1,381.00 1,401.00 1,544.00 17,340.00 13,940.00 12,470.00 3,727.00 1,131.00 1,201.00 

1971 1,065.00 1,131.00 2,640.00 11,130.00 3,480.00 2,429.00 2,471.00 1,135.00 1,413.00 

1972 1,861.00 1,449.00 7,256.00 22,230.00 9,171.00 6,079.00 2,395.00 2,439.00 2,079.00 

1973 1,126.00 1,197.00 6,106.00 2,450.00 1,575.00 1,200.00 578.70 801.90 3,008.00 

1974 1,744.00 1,672.00 2,016.00 18,950.00 18,260.00 7,633.00 3,297.00 3,232.00 1,967.00 

1975 1,329.00 1,435.00 1,686.00 16,280.00 22,890.00 5,971.00 28,240.00 4,003.00 2,479.00 

1976 1,630.00 1,729.00 3,298.00 13,300.00 3,016.00 1,914.00 1,359.00 1,163.00 712.80 

1977 197.40 201.40 428.50 1,794.00 938.10 676.40 638.60 243.30 521.00 

1978 1,343.00 1,124.00 2,171.00 36,740.00 7,427.00 3,798.00 3,710.00 1,537.00 1,074.00 

1979 725.20 723.20 879.70 29,260.00 32,090.00 6,653.00 6,268.00 3,341.00 2,097.00 

1980 1,388.00 1,463.00 1,654.00 10,040.00 2,072.00 1,532.00 758.10 488.80 846.20 

1981 304.20 339.60 1,233.00 1,275.00 1,365.00 1,311.00 2,765.00 1,509.00 1,897.00 

1982 1,112.00 1,041.00 1,946.00 23,650.00 7,805.00 3,705.00 4,246.00 2,292.00 1,263.00 

1983 1,607.00 1,471.00 9,329.00 10,940.00 3,388.00 5,122.00 6,550.00 2,886.00 2,941.00 

1984 1,581.00 1,582.00 4,443.00 19,240.00 4,246.00 11,920.00 3,331.00 1,442.00 975.30 

1985 1,326.00 1,323.00 6,441.00 5,751.00 9,248.00 8,252.00 6,962.00 7,247.00 4,909.00 

1986 1,977.00 1,681.00 5,311.00 21,640.00 16,860.00 6,437.00 4,764.00 2,715.00 2,993.00 

1987 1,845.00 1,673.00 7,776.00 15,170.00 3,427.00 2,984.00 2,865.00 2,502.00 1,096.00 

1988 461.50 513.10 2,419.00 6,250.00 1,427.00 946.40 347.70 274.50 328.70 

1989 269.50 356.40 424.80 23,900.00 4,576.00 2,292.00 1,145.00 451.50 1,048.00 

1990 174.40 251.80 1,117.00 2,848.00 1,513.00 1,989.00 1,109.00 434.70 364.40 

1991 187.00 289.60 680.20 1,894.00 2,746.00 2,056.00 3,179.00 1,104.00 1,405.00 

1992 520.70 500.40 4,887.00 4,205.00 2,657.00 2,176.00 2,984.00 1,556.00 2,557.00 

1993 813.00 998.00 1,572.00 15,000.00 3,915.00 4,585.00 10,760.00 21,580.00 7,912.00 

1994 1,539.00 1,488.00 7,433.00 15,550.00 6,835.00 6,070.00 13,920.00 3,986.00 4,211.00 

1995 1,966.00 1,770.00 15,720.00 25,360.00 11,240.00 4,526.00 7,816.00 2,736.00 2,259.00 

1996 2,052.00 1,978.00 4,981.00 30,880.00 31,420.00 10,930.00 4,052.00 2,951.00 1,766.00 

1997 1,973.00 1,854.00 2,373.00 54,710.00 37,500.00 9,020.00 14,980.00 3,654.00 2,723.00 

1998 2,255.00 2,598.00 16,290.00 12,190.00 13,340.00 9,383.00 15,510.00 3,437.00 2,187.00 

1999 1,919.00 1,886.00 8,126.00 39,400.00 20,050.00 12,310.00 8,111.00 6,319.00 12,140.00 

2000 2,103.00 1,824.00 8,462.00 5,931.00 4,362.00 12,150.00 14,070.00 3,087.00 2,787.00 

2001 2,679.00 2,559.00 3,389.00 36,860.00 24,180.00 10,420.00 6,013.00 6,753.00 2,846.00 

pp
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Pembina River at t

1931 8.16 7.48 51.66 529.01 119.45 25.94 12.56 2.41 0.45 

1932 0.15 3.91 16.11 483.30 215.99 82.81 24.54 7.10 2.14 

1933 0.00 0.00 20.46 823.62 644.94 371.96 86.65 31.64 33.61 

1934 5.37 5.45 85.94 392.33 178.54 78.74 23.15 1.59 0.12 

1935 0.00 0.00 14.40 164.68 74.67 125.85 72.58 27.33 17.33 

1936 0.64 0.04 0.00 778.60 498.28 228.55 66.30 24.08 29.43 

1937 0.63 0.00 0.00 128.11 87.00 76.18 16.63 14.54 0.47 

1938 0.00 0.00 205.02 115.42 91.07 42.57 14.54 0.06 0.00 

1939 0.00 0.00 1.28 62.64 20.54 14.79 0.87 0.00 0.00 

1940 0.00 0.00 0.00 195.41 52.18 10.36 0.78 7.64 0.02 

1941 0.00 0.00 0.00 1,395.35 419.35 230.04 66.87 28.78 186.81 

1942 7.33 1.85 116.23 2,635.32 1,170.47 423.95 141.19 163.95 108.81 

1943 8.25 6.33 314.82 734.95 394.94 612.17 322.18 215.34 185.62 

1944 8.80 3.70 3.79 449.91 239.47 291.52 596.70 854.20 540.51 

1945 52.54 57.20 1,239.59 1,255.30 898.31 535.78 312.10 154.99 110.60 

1946 12.97 12.31 818.03 770.35 330.36 133.56 76.94 33.86 27.78 

1947 1.86 1.22 2.33 835.40 336.85 309.93 116.45 137.76 72.19 

1948 19.88 7.01 7.40 1,666.23 1,094.71 465.19 376.04 222.93 125.22 

1949 14.21 12.41 15.56 2,928.84 1,661.59 693.76 284.39 148.59 74.54 

1950 9.79 7.77 11.11 2,301.59 4,142.44 1,366.22 650.44 423.63 237.30 

1951 35.90 27.82 110.41 1,137.32 579.12 292.71 128.03 80.19 56.95 

1952 4.53 3.59 13.88 416.42 226.09 130.95 75.51 22.62 6.41 

1953 1.52 0.71 6.53 99.22 106.04 208.38 99.78 79.48 20.17 

1954 2.71 3.13 28.81 195.05 139.46 556.97 710.65 417.36 231.83 

1955 13.81 20.44 18.23 1,993.96 924.74 658.74 417.11 117.13 64.00 

1956 17.71 19.56 23.06 2,006.83 2,950.39 997.29 426.59 200.07 178.68 

1957 23.33 11.65 230.48 357.84 272.27 178.16 84.38 103.07 182.47 

1958 41.27 27.51 50.45 251.42 147.39 51.72 69.43 8.76 5.31 

1959 5.55 4.89 16.01 782.79 231.95 166.89 48.69 21.39 18.60 

1960 73.69 45.47 28.43 2,400.73 1,391.25 507.69 213.55 99.23 47.83 

1961 7.95 4.12 87.52 297.62 197.80 59.91 15.27 3.94 4.56 

1962 3.70 1.60 2.40 1,037.33 637.78 509.11 182.72 115.31 124.51 

1963 31.16 15.13 106.63 230.94 224.68 482.52 227.58 155.43 98.34 

1964 8.51 6.95 3.37 562.56 444.59 451.50 129.66 64.03 92.45 

1965 15.95 10.44 18.16 1,465.75 1,046.27 574.12 217.53 94.30 126.12 

Year January February March April May June July August September 
Estimated (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Pembina River at the mou

1966 35.05 24.45 512.38 2,136.71 1,428.23 437.23 343.41 140.65 56.38 

1967 16.06 15.93 123.59 1,372.69 1,590.08 329.03 115.96 41.74 23.50 

1968 18.39 15.01 212.83 280.26 265.38 120.60 88.89 165.48 364.79 

1969 29.64 25.60 41.29 3,897.41 1,950.48 665.24 393.87 190.13 124.92 

1970 34.11 31.83 27.16 2,229.82 2,944.21 1,633.54 843.18 340.88 192.93 

1971 33.51 19.42 21.51 3,129.44 1,665.55 735.74 396.59 277.26 163.26 

1972 23.10 19.93 541.44 1,652.36 976.55 379.09 218.60 188.68 122.03 

1973 11.68 12.52 191.09 140.48 98.69 64.67 75.45 66.59 65.76 

1974 21.79 14.52 43.24 3,751.55 5,392.58 1,890.92 547.17 155.07 102.65 

1975 25.89 19.05 18.43 452.93 1,326.78 685.41 277.80 112.83 59.22 

1976 23.65 26.94 44.16 3,196.49 1,490.62 606.50 261.38 92.81 46.91 

1977 6.65 6.60 35.04 81.30 94.56 63.17 43.06 10.81 32.39 

1978 12.45 23.78 37.77 1,752.85 623.27 208.60 69.48 50.07 51.25 

1979 8.04 24.82 57.67 2,707.44 3,910.22 953.62 349.82 94.34 125.84 

1980 18.74 15.94 25.92 310.09 90.75 39.77 13.69 41.61 101.13 

1981 13.23 73.58 193.09 354.08 201.34 127.74 48.19 34.95 48.67 

1982 4.32 2.17 68.84 883.43 771.97 615.15 311.80 154.77 86.37 

1983 14.50 6.14 325.07 1,237.91 521.50 303.41 85.21 28.13 21.67 

1984 0.61 0.00 33.32 211.08 195.67 164.91 57.88 9.90 12.49 

1985 0.07 0.00 713.33 998.22 309.35 173.04 175.85 172.62 101.82 

1986 17.22 9.53 806.21 1,284.43 995.70 422.34 253.04 169.58 127.43 

1987 15.41 19.60 158.19 2,768.29 956.50 292.28 125.86 65.26 70.96 

1988 4.79 2.46 59.55 186.83 75.96 18.24 4.73 1.09 0.86 

1989 0.21 0.00 42.66 220.02 119.91 72.79 16.02 5.39 0.30 

1990 0.00 0.00 5.10 337.95 145.32 207.16 67.04 10.71 4.58 

1991 0.02 0.00 11.40 77.17 107.36 204.64 283.52 120.38 29.26 

1992 9.26 9.13 539.15 2,649.78 952.24 258.29 118.38 40.20 34.46 

1993 5.37 3.92 89.40 680.16 397.83 283.27 993.03 1,408.70 739.54 

1994 52.79 41.01 511.79 1,360.00 591.35 247.86 195.74 146.75 203.81 

1995 135.94 74.54 1,562.84 4,867.93 3,356.88 1,340.07 541.77 910.87 377.53 

1996 26.17 14.84 107.83 3,899.98 3,276.40 1,017.60 522.26 338.32 209.74 

1997 44.75 42.03 82.67 5,350.81 5,760.12 1,049.10 2,206.71 472.13 192.68 

1998 37.27 38.74 844.77 5,540.32 1,708.72 683.74 529.34 302.86 165.14 

1999 28.32 27.87 414.18 1,588.40 1,828.15 1,975.61 818.00 257.01 138.19 

2000 32.85 35.46 175.39 154.84 119.90 118.11 61.71 62.77 50.18 

2001 19.14 14.61 56.49 3,593.28 1,922.84 707.53 345.39 261.41 127.76 

pp
Gaged (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Red River of the North at Em

1931 176.00 199.60 959.60 3,385.00 881.00 660.10 356.40 157.50 81.00 

1932 166.50 138.00 1,364.00 7,809.00 1,925.00 586.00 256.10 62.50 40.00 

1933 54.00 49.40 861.90 5,839.00 1,548.00 1,026.00 253.40 73.10 45.90 

1934 54.30 32.60 491.80 2,178.00 662.60 196.10 138.20 46.60 23.80 

1935 14.10 27.00 749.00 3,325.00 1,173.00 438.20 1,082.00 514.10 268.70 

1936 56.80 54.00 58.20 6,739.00 2,602.00 583.30 120.60 79.30 66.80 

1937 7.05 1.21 2.25 2,025.00 2,886.00 1,059.00 830.40 1,565.00 818.30 

1938 53.30 75.90 1,453.00 1,282.00 4,870.00 2,584.00 854.80 217.50 193.40 

1939 197.60 255.40 259.90 3,718.00 1,193.00 658.70 565.80 187.50 230.30 

1940 135.30 148.20 224.20 5,085.00 2,232.00 1,053.00 357.20 255.10 186.80 

1941 312.00 348.00 361.70 13,650.00 3,120.00 5,284.00 1,426.00 755.40 1,853.00 

1942 565.10 635.10 1,962.00 16,530.00 8,966.00 4,187.00 1,809.00 1,254.00 3,110.00 

1943 797.70 699.70 1,207.00 23,130.00 7,258.00 12,440.00 6,497.00 2,584.00 1,818.00 

1944 662.60 736.10 767.80 4,349.00 3,776.00 6,947.00 6,806.00 6,003.00 5,909.00 

1945 1,294.00 1,365.00 9,121.00 20,150.00 8,646.00 4,043.00 2,187.00 1,309.00 1,776.00 

1946 944.90 790.90 5,738.00 14,640.00 4,119.00 2,223.00 2,442.00 1,273.00 1,167.00 

1947 1,031.00 897.20 1,057.00 17,830.00 11,940.00 12,050.00 5,785.00 2,029.00 1,571.00 

1948 1,084.00 844.60 851.00 24,890.00 20,050.00 3,858.00 3,139.00 1,661.00 1,009.00 

1949 449.00 453.90 596.50 14,720.00 5,092.00 6,070.00 3,414.00 3,289.00 1,806.00 

1950 827.30 747.90 926.80 26,540.00 72,820.00 22,300.00 10,110.00 3,805.00 2,617.00 

1951 2,053.00 1,800.00 2,287.00 19,650.00 10,860.00 4,941.00 2,742.00 1,461.00 1,955.00 

1952 1,788.00 1,914.00 2,009.00 17,150.00 7,663.00 3,815.00 5,878.00 2,285.00 1,376.00 

1953 609.60 610.60 1,365.00 4,064.00 3,151.00 8,890.00 5,531.00 2,301.00 1,317.00 

1954 834.40 847.30 1,376.00 5,823.00 4,230.00 4,283.00 2,958.00 1,436.00 895.40 

1955 731.70 652.10 653.50 10,600.00 3,226.00 4,286.00 2,741.00 1,815.00 941.90 

1956 431.50 455.40 509.30 12,750.00 14,560.00 5,427.00 4,092.00 1,156.00 2,028.00 

1957 442.70 407.60 1,445.00 5,882.00 4,537.00 4,202.00 9,284.00 2,880.00 6,388.00 

1958 1,383.00 1,305.00 1,867.00 3,330.00 1,648.00 1,424.00 4,055.00 1,005.00 458.90 

1959 348.20 342.60 632.70 6,049.00 2,110.00 2,747.00 2,067.00 758.60 543.90 

1960 617.80 556.60 471.00 16,530.00 5,206.00 3,110.00 2,283.00 589.40 619.20 

1961 344.70 292.70 1,721.00 2,592.00 2,400.00 1,111.00 441.40 274.50 266.70 

1962 197.80 199.90 225.10 14,750.00 12,010.00 25,430.00 16,060.00 7,212.00 3,368.00 

1963 1,246.00 1,074.00 1,515.00 7,847.00 3,739.00 7,490.00 3,049.00 1,315.00 1,213.00 

1964 767.10 754.50 685.70 8,474.00 5,455.00 9,511.00 3,625.00 1,321.00 671.80 

1965 909.80 890.40 950.20 24,980.00 18,580.00 10,030.00 5,632.00 2,345.00 2,096.00 

Year January February March April May June July August September 
Gaged (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Red River of the North at Emerson, 

1966 1,879.00 1,648.00 5,841.00 45,820.00 20,250.00 7,007.00 4,752.00 3,785.00 2,894.00 

1967 1,632.00 1,478.00 2,086.00 25,420.00 20,000.00 6,548.00 3,588.00 1,487.00 951.10 

1968 491.50 493.40 1,434.00 4,883.00 2,502.00 6,037.00 6,866.00 3,292.00 2,994.00 

1969 1,696.00 1,613.00 2,173.00 29,160.00 27,410.00 6,454.00 4,023.00 2,076.00 1,656.00 

1970 1,454.00 1,411.00 1,578.00 19,180.00 22,960.00 16,950.00 5,515.00 1,614.00 1,400.00 

1971 1,033.00 998.70 1,960.00 14,470.00 5,486.00 3,252.00 2,909.00 1,462.00 1,499.00 

1972 1,963.00 1,598.00 6,832.00 23,910.00 10,890.00 6,367.00 2,482.00 2,479.00 2,058.00 

1973 1,112.00 1,116.00 5,817.00 2,707.00 1,716.00 1,311.00 622.00 779.50 2,567.00 

1974 1,713.00 1,688.00 2,022.00 19,340.00 29,660.00 10,760.00 3,744.00 3,262.00 2,051.00 

1975 1,314.00 1,412.00 1,651.00 12,950.00 27,310.00 6,923.00 28,020.00 4,713.00 2,560.00 

1976 1,523.00 1,643.00 2,794.00 17,430.00 4,398.00 2,375.00 1,554.00 1,119.00 728.10 

1977 180.40 189.80 400.20 2,101.00 1,202.00 861.50 636.00 260.70 533.70 

1978 1,226.00 987.40 1,737.00 36,030.00 10,240.00 3,870.00 3,615.00 1,730.00 1,118.00 

1979 562.30 578.90 774.60 26,080.00 49,220.00 8,093.00 6,432.00 3,371.00 2,227.00 

1980 1,351.00 1,331.00 1,479.00 10,140.00 2,399.00 1,630.00 860.90 484.50 837.00 

1981 292.10 296.40 1,471.00 1,807.00 1,386.00 1,582.00 2,737.00 1,517.00 1,808.00 

1982 1,151.00 1,055.00 1,754.00 22,080.00 8,865.00 4,261.00 4,090.00 2,465.00 1,346.00 

1983 1,614.00 1,378.00 9,361.00 12,530.00 3,948.00 4,835.00 6,393.00 2,500.00 2,794.00 

1984 1,380.00 1,274.00 2,896.00 19,140.00 4,253.00 11,580.00 3,399.00 1,531.00 959.10 

1985 1,207.00 1,154.00 6,461.00 7,385.00 9,120.00 7,935.00 7,374.00 7,342.00 5,858.00 

1986 2,014.00 1,812.00 6,091.00 26,820.00 22,310.00 7,367.00 5,014.00 2,845.00 2,917.00 

1987 1,804.00 1,616.00 6,895.00 22,500.00 4,242.00 3,682.00 3,109.00 2,612.00 1,109.00 

1988 471.30 510.20 2,258.00 6,623.00 1,444.00 1,088.00 463.50 281.70 332.30 

1989 262.90 379.80 396.80 21,480.00 6,886.00 2,692.00 1,138.00 430.90 1,045.00 

1990 172.50 261.10 1,147.00 3,531.00 1,661.00 2,178.00 1,191.00 464.80 365.80 

1991 177.10 245.60 594.40 2,097.00 2,821.00 2,306.00 3,971.00 1,295.00 1,578.00 

1992 552.00 553.00 7,055.00 10,130.00 4,510.00 2,509.00 2,976.00 1,276.00 2,617.00 

1993 858.40 1,016.00 1,310.00 15,000.00 4,136.00 4,630.00 10,530.00 27,000.00 10,010.00 

1994 1,495.00 1,503.00 5,415.00 17,570.00 7,549.00 6,099.00 13,320.00 4,416.00 4,772.00 

1995 1,958.00 1,781.00 15,340.00 33,550.00 14,280.00 6,050.00 8,323.00 3,792.00 2,719.00 

1996 1,889.00 1,795.00 3,777.00 28,910.00 41,370.00 14,870.00 4,721.00 3,101.00 1,786.00 

1997 1,974.00 2,087.00 2,307.00 48,890.00 54,650.00 10,810.00 18,890.00 4,297.00 2,952.00 

1998 1,924.00 2,446.00 20,490.00 19,250.00 14,410.00 10,370.00 16,250.00 3,501.00 2,352.00 

1999 2,224.00 2,090.00 7,487.00 44,810.00 21,520.00 14,820.00 9,604.00 6,259.00 11,480.00 

2000 2,179.00 1,735.00 8,456.00 6,111.00 4,420.00 11,620.00 16,270.00 3,518.00 3,420.00 

2001 2,684.00 2,459.00 3,736.00 39,540.00 30,410.00 11,490.00 7,125.00 9,089.00 2,740.00 

pp
Year January February March April May June July August September 

Gaged (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Otter Tail River below Orwell Dam n

1931 30.00 65.00 131.80 140.80 159.50 104.40 62.60 32.30 44.40 

1932 40.00 45.00 60.00 81.70 50.60 50.30 32.70 27.20 31.40 

1933 23.00 25.00 170.00 51.30 37.80 61.80 19.10 14.70 25.80 

1934 27.40 26.20 25.80 39.50 18.00 14.20 13.80 11.50 7.99 

1935 16.00 10.80 58.80 51.50 51.80 63.50 102.60 22.80 13.90 

1936 26.50 24.90 32.50 65.00 41.10 21.90 12.80 19.70 21.60 

1937 15.10 15.70 23.50 60.90 58.00 178.20 96.90 72.70 125.00 

1938 20.40 36.10 100.80 144.00 272.20 267.20 79.00 24.90 47.70 

1939 117.40 118.90 228.20 207.00 180.70 83.30 46.40 18.50 17.00 

1940 17.70 32.00 44.70 166.50 308.90 137.00 28.50 19.40 22.30 

1941 58.60 105.20 163.50 277.10 302.70 210.50 99.00 39.00 51.50 

1942 123.50 97.50 133.10 120.10 383.40 426.80 207.80 164.60 230.70 

1943 306.20 240.90 310.10 595.30 656.10 776.30 534.10 432.50 396.70 

1944 199.10 157.80 196.90 309.30 362.00 616.00 470.70 350.30 581.30 

1945 411.60 369.30 527.80 649.70 735.30 640.90 312.30 158.60 142.90 

1946 194.20 146.40 360.10 513.70 569.00 368.40 621.30 610.60 511.40 

1947 415.30 341.80 343.20 703.60 900.30 871.80 560.40 238.10 207.30 

1948 157.40 129.90 247.50 480.60 647.20 443.80 254.20 213.10 190.40 

1949 90.30 107.60 200.60 220.60 224.00 213.90 225.10 178.30 93.50 

1950 109.60 143.00 218.00 428.50 869.50 883.70 666.90 325.70 162.40 

1951 143.60 199.90 260.50 607.60 635.00 661.50 463.50 332.10 321.70 

1952 478.70 484.40 488.70 787.40 822.60 563.80 426.00 446.80 463.40 

1953 169.30 212.00 334.00 421.00 558.30 1,262.00 1,246.00 746.90 507.00 

1954 400.00 312.00 482.10 614.10 855.60 903.10 521.70 189.10 229.00 

1955 230.10 190.20 240.00 410.40 355.10 319.30 466.50 465.70 501.80 

1956 235.50 194.00 235.00 642.30 807.80 652.00 247.00 191.80 109.40 

1957 111.00 112.80 274.80 426.70 634.30 592.40 578.40 498.20 436.00 

1958 281.50 271.90 401.00 381.60 218.20 142.60 331.90 225.90 195.60 

1959 238.90 233.50 288.80 321.10 318.50 515.70 430.90 208.40 172.10 

1960 236.00 254.30 234.10 484.40 785.20 702.60 425.90 171.40 115.80 

1961 161.50 168.30 235.20 281.30 346.20 378.80 187.40 95.00 80.60 

1962 81.90 93.60 234.00 433.00 488.70 1,035.00 939.30 777.20 442.70 

1963 286.30 197.20 284.80 450.50 443.20 555.40 359.60 140.60 155.70 

1964 171.80 155.40 150.30 474.50 801.50 564.40 296.90 78.50 128.90 

1965 216.90 176.50 213.60 565.50 961.10 1,156.00 730.60 419.60 398.30 
Gaged (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Otter Tail River below Orwell Dam near Fe

1966 489.00 432.60 605.40 1,033.00 1,273.00 1,149.00 564.40 521.40 411.60 

1967 416.10 367.50 406.10 820.70 1,040.00 865.90 727.30 243.60 118.00 

1968 136.50 147.90 264.80 397.40 598.10 575.00 431.40 233.60 167.30 

1969 247.90 374.10 461.20 738.10 1,104.00 910.10 413.30 200.60 59.60 

1970 193.90 214.80 229.00 385.10 679.70 716.50 440.50 122.10 28.80 

1971 150.00 166.50 262.60 458.30 340.10 295.80 351.70 151.70 166.30 

1972 563.80 473.20 510.40 865.50 969.90 1,181.00 692.30 491.90 425.00 

1973 359.20 357.80 517.80 433.40 371.30 274.30 156.80 130.50 136.90 

1974 506.50 461.20 483.50 608.40 984.00 1,156.00 666.10 337.20 252.60 

1975 200.50 269.00 412.60 642.60 956.50 1,023.00 846.30 597.00 369.00 

1976 247.50 305.80 432.90 518.50 317.80 171.00 110.40 57.30 9.17 

1977 19.80 22.40 30.40 45.80 14.10 55.00 59.80 50.40 128.20 

1978 402.50 356.60 384.90 814.40 812.00 519.20 402.30 137.30 96.00 

1979 98.20 132.40 295.90 620.90 972.40 917.60 804.00 701.80 551.00 

1980 357.80 392.70 488.80 548.50 505.20 346.50 166.70 102.80 40.90 

1981 101.10 132.20 207.40 213.20 170.30 124.80 142.20 152.50 58.80 

1982 239.70 256.00 406.60 612.30 748.40 719.80 503.40 276.70 171.90 

1983 281.20 262.60 354.30 374.20 329.50 235.80 287.70 365.50 353.70 

1984 275.40 345.80 369.10 656.20 621.50 637.80 468.20 247.40 125.80 

1985 267.60 270.70 473.50 590.80 901.50 1,087.00 1,139.00 1,080.00 904.10 

1986 603.00 538.60 545.40 1,051.00 1,427.00 1,425.00 883.50 611.00 684.20 

1987 580.10 605.30 652.90 602.10 521.30 467.70 322.20 166.20 174.50 

1988 169.80 231.00 320.00 347.40 356.90 201.90 75.10 78.30 74.00 

1989 92.90 175.40 342.10 653.20 600.20 593.30 305.10 137.50 168.40 

1990 111.10 145.70 294.60 428.10 517.90 551.60 385.30 236.80 163.20 

1991 93.20 158.80 256.30 383.00 699.00 709.60 679.10 429.30 354.70 

1992 205.80 248.80 369.20 443.90 431.90 381.20 351.10 291.40 265.50 

1993 221.00 281.40 419.50 621.00 684.80 979.50 923.70 1,055.00 1,026.00 

1994 556.30 646.90 724.30 816.90 1,009.00 706.70 565.50 408.40 279.40 

1995 410.40 414.20 615.00 894.80 891.60 619.20 509.40 310.70 259.40 

1996 366.10 401.90 546.00 738.80 1,100.00 1,069.00 573.90 348.00 223.30 

1997 521.50 532.60 571.20 1,199.00 1,403.00 1,054.00 848.90 724.30 565.60 

1998 507.50 581.60 699.40 837.60 874.90 662.90 1,111.00 883.70 497.80 

1999 736.60 742.40 784.70 1,093.00 1,162.00 1,220.00 1,022.00 624.20 763.10 

2000 463.00 472.00 715.00 842.00 794.00 905.00 819.00 605.00 417.00 

2001 689.00 604.00 731.00 1,084.00 1,267.00 1,442.00 1,090.00 612.00 467.00 

Year January February March April May June July August September 
Gaged (January 1931 through September 1958) and estimated (October 1958 through December 2001) historic stream

in cubic feet per second, for the Mustinka River above Wheaton, Minn.

1931 0.00 0.00 2.60 1.33 0.64 3.51 1.36 1.95 4.17 

1932 0.00 0.26 4.10 25.70 2.68 0.89 0.07 0.00 0.00 

1933 0.00 0.68 14.30 5.54 4.28 2.30 0.03 0.00 0.00 

1934 0.00 0.00 0.04 2.07 0.13 0.09 0.00 0.00 0.00 

1935 0.00 0.10 42.60 5.47 10.50 13.90 16.00 0.44 0.00 

1936 0.00 0.00 55.90 22.00 5.08 0.61 0.00 0.00 0.00 

1937 0.00 0.00 13.00 172.00 66.30 6.48 15.50 2.46 0.10 

1938 0.00 0.54 46.90 5.65 12.40 12.20 49.70 0.19 13.90 

1939 0.03 0.00 214.00 28.10 3.82 4.61 3.73 0.45 0.00 

1940 0.00 0.00 0.84 104.00 11.10 0.42 0.00 0.00 0.00 

1941 0.00 0.00 35.60 55.70 4.65 28.00 1.94 11.80 32.20 

1942 0.00 0.00 7.52 24.20 571.00 524.00 25.70 13.50 38.60 

1943 0.00 0.00 43.00 743.00 81.30 266.00 88.50 44.30 12.30 

1944 0.00 0.00 5.36 45.30 135.00 500.00 60.40 7.14 4.32 

1945 0.00 0.00 193.00 76.80 24.00 52.60 3.98 0.63 0.00 

1946 0.00 0.00 435.00 126.00 15.10 3.48 63.40 2.21 1.86 

1947 0.10 0.28 107.00 978.00 186.00 106.00 17.40 0.56 0.00 

1948 0.00 0.00 251.00 579.00 53.20 12.30 18.10 3.72 0.19 

1949 0.00 0.00 72.70 44.30 2.85 6.82 430.00 16.00 1.50 

1950 0.00 0.00 68.50 498.00 471.00 74.40 256.00 14.80 1.04 

1951 0.01 0.39 0.07 673.00 117.00 82.70 43.70 5.25 1.96 

1952 2.03 1.27 1.38 1,767.00 225.00 50.30 69.00 7.97 4.68 

1953 0.74 0.82 154.00 73.10 42.10 92.80 35.70 1.34 0.00 

1954 0.00 0.00 17.10 43.60 26.30 91.10 9.16 5.86 5.73 

1955 0.04 0.00 16.70 61.00 3.49 18.30 68.70 3.72 0.57 

1956 0.00 0.00 0.06 143.00 70.70 40.20 6.82 75.30 4.50 

1957 0.10 0.00 33.70 169.00 98.80 221.00 34.50 20.40 25.00 

1958 0.73 11.00 104.00 124.00 21.00 7.20 4.01 1.55 2.20 

1959 0.14 0.78 9.75 3.07 1.74 420.31 3.41 10.47 5.81 

1960 2.43 1.11 16.55 151.92 38.93 42.40 2.50 0.08 3.94 

1961 0.16 2.26 17.02 4.07 6.72 6.97 0.82 0.81 0.58 

1962 0.03 0.75 0.50 555.94 623.25 677.54 1,280.77 243.47 13.40 

1963 0.16 2.09 34.04 56.73 28.27 678.46 16.39 1.82 0.11 

1964 0.14 1.42 13.32 105.83 69.34 37.87 12.13 1.18 0.60 

1965 0.12 2.48 0.64 640.28 71.74 186.31 61.53 18.36 3.10 

Year January February March April May June July August September 
Gaged (January 1931 through September 1958) and estimated (October 1958 through December 2001) historic stream

in cubic feet per second, for the Mustinka River above Wheaton, Minn.—Continued

1966 1.21 0.22 658.72 261.85 81.11 29.43 46.46 144.34 18.36 

1967 1.63 1.15 150.41 253.74 155.31 297.24 182.35 23.20 0.52 

1968 0.36 0.03 15.61 35.63 37.24 31.04 4.48 1.70 2.51 

1969 0.50 0.32 0.31 3,278.28 286.94 10.61 47.61 24.75 1.09 

1970 1.48 1.82 14.66 97.00 37.09 164.47 33.19 0.07 0.21 

1971 0.05 2.20 81.76 23.44 7.62 9.15 56.90 0.46 6.67 

1972 2.44 1.03 401.95 215.42 417.13 48.71 39.88 13.08 0.35 

1973 1.72 1.24 79.20 13.79 6.79 3.35 8.03 0.01 0.11 

1974 0.32 0.23 51.12 106.31 44.80 93.75 0.10 0.04 1.85 

1975 0.26 3.12 0.20 725.99 108.24 1,846.74 829.73 31.88 2.62 

1976 2.52 154.79 192.72 126.62 17.79 1.43 0.03 0.61 0.02 

1977 0.02 0.18 6.31 11.20 3.18 3.50 2.72 0.14 9.11 

1978 2.98 5.61 453.06 931.38 112.58 9.79 168.72 36.12 21.41 

1979 0.62 0.66 0.57 1,929.48 295.91 39.64 50.05 34.89 1.99 

1980 1.51 1.15 91.08 216.73 16.91 2.93 0.82 2.93 0.25 

1981 0.39 9.54 7.97 7.62 1.73 5.65 6.49 1.04 0.00 

1982 0.07 0.60 38.50 284.91 17.27 7.99 21.56 0.93 0.69 

1983 0.78 0.97 83.12 21.12 3.85 15.07 14.35 0.76 6.08 

1984 0.05 280.33 434.10 388.48 46.66 895.41 3.20 0.95 0.00 

1985 1.52 1.02 154.92 16.96 14.22 1,099.54 7.41 0.05 2.95 

1986 1.70 2.15 322.29 793.22 581.79 530.62 17.73 12.69 121.85 

1987 5.77 23.10 126.24 77.77 29.33 11.27 6.45 0.20 0.01 

1988 0.41 10.55 23.12 5.90 0.81 2.19 3.46 0.99 0.45 

1989 0.29 1.44 3.09 1,790.28 51.10 8.14 1.79 0.93 0.28 

1990 0.27 0.42 7.08 7.62 5.02 49.38 0.02 1.01 0.27 

1991 0.09 0.65 6.37 1.14 18.67 32.58 54.09 3.69 7.89 

1992 0.06 0.82 24.75 26.59 15.67 87.71 81.24 20.62 1.89 

1993 0.55 5.41 188.90 674.31 86.92 181.40 658.65 343.43 76.87 

1994 11.82 42.80 457.87 649.64 192.50 35.89 544.13 31.80 9.99 

1995 6.12 26.22 865.71 625.98 338.81 15.44 475.80 49.36 16.55 

1996 5.05 6.48 213.41 834.79 828.55 136.59 39.19 8.79 0.37 

1997 0.96 0.93 0.94 6,360.71 644.63 302.98 136.78 56.14 32.88 

1998 8.79 159.13 484.26 814.69 1,105.65 1,414.40 819.14 181.54 74.76 

1999 56.82 415.44 486.26 444.08 339.69 229.43 115.82 119.69 325.69 

2000 21.17 608.39 304.89 176.56 166.47 140.43 216.71 38.12 2.83 

2001 1.10 1.97 2.01 3,185.11 442.65 655.66 84.17 14.58 2.18 

Year January February March April May June July August September 
Gaged (October 1941 through December 2001) and estimated (January 1931 through September 1941) historic stream

in cubic feet per second, for the Bois de Sioux River near White Rock, S. Dak.

1931 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 

1932 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 

1933 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 

1934 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 

1935 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 

1936 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 

1937 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 

1938 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 

1939 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 

1940 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 

1941 0.00 0.00 0.00 0.00 0.00 3.33 6.99 3.93 1.66 

1942 0.00 0.00 0.00 0.00 2.52 147.90 623.30 197.70 243.80 

1943 0.00 0.00 5.97 325.30 935.30 680.70 324.30 35.90 6.85 

1944 0.00 0.00 3.66 157.00 252.80 598.10 225.00 15.80 4.80 

1945 0.00 0.00 15.90 375.20 41.40 214.00 5.87 3.21 1.15 

1946 0.00 0.00 28.10 530.50 24.70 13.10 38.70 4.17 2.32 

1947 1.70 0.81 6.16 271.50 592.10 433.40 453.50 9.04 5.98 

1948 0.01 0.00 36.90 358.80 750.20 84.50 15.40 18.20 15.00 

1949 0.00 0.00 19.70 8.26 2.02 2.84 64.90 4.53 1.51 

1950 0.00 0.00 4.60 23.10 17.80 575.10 713.00 327.80 19.40 

1951 6.38 1.02 3.88 185.90 820.40 330.70 69.60 29.50 4.94 

1952 20.50 12.70 55.00 259.90 1,002.00 944.30 260.30 7.52 0.36 

1953 0.00 0.00 28.90 9.86 74.00 57.90 60.20 33.40 15.60 

1954 0.00 0.00 2.89 5.56 4.66 6.75 2.00 1.33 2.36 

1955 0.00 0.00 4.12 5.91 1.66 2.81 18.10 3.69 0.72 

1956 0.00 0.00 0.01 13.10 3.29 1.35 0.31 5.85 0.28 

1957 0.00 0.00 1.20 24.30 235.10 324.40 134.40 14.80 24.80 

1958 13.60 10.80 41.90 223.00 41.50 7.74 6.51 0.21 0.79 

1959 0.00 0.00 1.50 0.60 1.45 4.36 3.75 0.09 0.00 

1960 0.00 0.00 1.87 19.10 72.80 68.50 19.60 0.13 0.00 

1961 0.00 0.00 1.40 5.37 6.38 0.84 0.00 0.05 1.86 

1962 0.00 0.00 0.14 127.50 412.50 788.30 1,035.00 1,130.00 259.90 

1963 3.52 8.16 17.60 104.50 42.30 558.40 75.30 8.38 3.73 

1964 0.46 0.22 0.25 107.90 95.10 20.90 5.73 0.40 1.30 

1965 0.00 0.00 0.00 427.20 433.30 1,088.00 308.60 9.30 5.26 

Year January February March April May June July August September 
Gaged (October 1941 through December 2001) and estimated (January 1931 through September 1941) historic stream

in cubic feet per second, for the Bois de Sioux River near White Rock, S. Dak.—Continued

1966 20.10 53.00 58.80 332.00 729.20 431.00 8.30 6.64 1.15 

1967 0.00 0.00 13.70 223.80 104.80 26.20 199.90 0.77 0.45 

1968 0.00 0.00 0.02 7.61 7.59 3.55 0.69 0.06 0.04 

1969 0.06 0.00 0.00 1,322.00 1,310.00 374.20 20.60 0.23 0.00 

1970 0.00 0.00 1.56 14.40 4.30 5.27 0.04 0.00 0.00 

1971 0.00 0.00 2.40 4.80 4.80 69.30 23.60 4.40 5.42 

1972 1.58 0.27 100.00 630.90 250.60 303.80 25.50 105.50 18.10 

1973 4.02 8.15 139.20 77.80 17.70 9.37 0.04 0.28 0.05 

1974 0.00 0.00 8.86 8.11 9.56 3.77 0.12 0.35 0.15 

1975 0.00 0.00 0.00 26.50 183.70 87.10 315.60 12.00 23.40 

1976 0.00 21.50 221.20 133.80 4.21 0.02 0.00 0.00 0.23 

1977 0.00 0.00 2.89 1.24 0.23 0.01 0.02 0.01 0.09 

1978 0.00 0.00 3.88 623.40 718.80 520.00 415.60 108.20 18.40 

1979 0.64 0.00 0.92 228.20 937.90 695.50 325.90 103.20 8.08 

1980 9.35 11.90 40.70 23.30 25.50 62.20 12.80 1.83 1.47 

1981 0.00 0.17 0.39 1.99 1.46 10.30 8.08 0.10 0.00 

1982 0.00 0.00 3.89 200.50 99.50 3.57 5.43 0.19 0.02 

1983 2.03 0.00 2.61 2.54 1.93 0.36 0.07 0.00 0.00 

1984 0.00 1.94 6.19 716.90 311.80 426.20 281.20 103.80 0.72 

1985 0.20 0.20 227.20 340.00 205.10 420.90 79.70 18.60 19.40 

1986 4.54 6.84 55.30 720.60 1,092.00 1,103.00 722.80 151.10 61.90 

1987 58.20 66.00 39.10 63.90 28.20 2.19 0.92 0.27 0.11 

1988 0.31 0.01 9.70 41.70 4.82 0.45 0.00 0.01 0.00 

1989 0.00 0.00 1.34 414.10 491.30 89.70 5.13 6.69 71.60 

1990 0.00 0.00 21.90 6.98 11.00 8.24 2.12 0.08 1.06 

1991 41.00 0.48 5.11 10.40 14.50 108.00 505.00 71.80 38.40 

1992 0.65 1.38 8.93 10.40 2.93 6.64 22.40 92.40 0.24 

1993 4.82 4.19 75.50 602.70 244.40 240.40 711.40 1,182.00 1,062.00 

1994 6.61 7.25 199.00 1,088.00 1,105.00 489.70 689.00 139.50 7.22 

1995 4.62 5.74 208.50 1,277.00 1,236.00 667.30 100.60 6.52 7.64 

1996 8.67 16.30 628.40 841.60 723.20 187.40 5.81 4.17 0.48 

1997 42.40 148.30 326.00 3,814.00 1,445.00 611.90 53.10 5.51 1.00 

1998 0.67 83.90 500.40 232.10 255.50 116.90 202.90 2.74 0.70 

1999 5.24 6.42 321.10 139.80 208.80 368.50 118.80 201.40 164.70 

2000 2.87 16.00 272.00 56.80 106.00 8.51 233.00 0.55 0.11 

2001 1.27 2.28 362.00 2,306.00 1,323.00 1,046.00 919.00 101.00 3.98 

Year January February March April May June July August September 
Gaged (January 1931 through September 1944) historic streamflow, in cubic feet per second, for the Bois de Sioux River near Fair

1931 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 

1932 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 

1933 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 

1934 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 

1935 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 

1936 0.00 0.00 0.00 0.31 0.00 0.00 0.00 0.00 0.00 

1937 0.00 0.00 0.00 4.33 4.90 0.00 0.00 0.00 0.00 

1938 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 

1939 0.00 0.00 13.10 13.60 0.18 0.33 0.15 0.00 0.00 

1940 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 

1941 0.00 0.00 0.50 1.30 0.17 6.12 1.83 0.84 1.90 

1942 0.00 0.00 3.55 12.00 149.00 394.00 662.00 208.00 249.00 

1943 0.00 0.00 72.30 625.00 928.00 725.00 341.00 34.80 4.75 

1944 0.00 0.00 3.29 161.00 308.00 705.00 274.00 21.70 8.99 

1945 -- -- -- -- -- -- -- -- -- 

1946 -- -- -- -- -- -- -- -- -- 

1947 -- -- -- -- -- -- -- -- -- 

1948 -- -- -- -- -- -- -- -- -- 

1949 -- -- -- -- -- -- -- -- -- 

1950 -- -- -- -- -- -- -- -- -- 

1951 -- -- -- -- -- -- -- -- -- 

1952 -- -- -- -- -- -- -- -- -- 

1953 -- -- -- -- -- -- -- -- -- 

1954 -- -- -- -- -- -- -- -- -- 

1955 -- -- -- -- -- -- -- -- -- 

1956 -- -- -- -- -- -- -- -- -- 

1957 -- -- -- -- -- -- -- -- -- 

1958 -- -- -- -- -- -- -- -- -- 

1959 -- -- -- -- -- -- -- -- -- 

1960 -- -- -- -- -- -- -- -- -- 

1961 -- -- -- -- -- -- -- -- -- 

1962 -- -- -- -- -- -- -- -- -- 

1963 -- -- -- -- -- -- -- -- -- 

1964 -- -- -- -- -- -- -- -- -- 

1965 -- -- -- -- -- -- -- -- -- 

Year January February March April May June July August September 
Gaged (January 1931 through September 1944) historic streamflow, in cubic feet per second, for the Bois de Sioux River near Fairmoun

1966 -- -- -- -- -- -- -- -- -- 

1967 -- -- -- -- -- -- -- -- -- 

1968 -- -- -- -- -- -- -- -- -- 

1969 -- -- -- -- -- -- -- -- -- 

1970 -- -- -- -- -- -- -- -- -- 

1971 -- -- -- -- -- -- -- -- -- 

1972 -- -- -- -- -- -- -- -- -- 

1973 -- -- -- -- -- -- -- -- -- 

1974 -- -- -- -- -- -- -- -- -- 

1975 -- -- -- -- -- -- -- -- -- 

1976 -- -- -- -- -- -- -- -- -- 

1977 -- -- -- -- -- -- -- -- -- 

1978 -- -- -- -- -- -- -- -- -- 

1979 -- -- -- -- -- -- -- -- -- 

1980 -- -- -- -- -- -- -- -- -- 

1981 -- -- -- -- -- -- -- -- -- 

1982 -- -- -- -- -- -- -- -- -- 

1983 -- -- -- -- -- -- -- -- -- 

1984 -- -- -- -- -- -- -- -- -- 

1985 -- -- -- -- -- -- -- -- -- 

1986 -- -- -- -- -- -- -- -- -- 

1987 -- -- -- -- -- -- -- -- -- 

1988 -- -- -- -- -- -- -- -- -- 

1989 -- -- -- -- -- -- -- -- -- 

1990 -- -- -- -- -- -- -- -- -- 

1991 -- -- -- -- -- -- -- -- -- 

1992 -- -- -- -- -- -- -- -- -- 

1993 -- -- -- -- -- -- -- -- -- 

1994 -- -- -- -- -- -- -- -- -- 

1995 -- -- -- -- -- -- -- -- -- 

1996 -- -- -- -- -- -- -- -- -- 

1997 -- -- -- -- -- -- -- -- -- 

1998 -- -- -- -- -- -- -- -- -- 

1999 -- -- -- -- -- -- -- -- -- 

2000 -- -- -- -- -- -- -- -- -- 

2001 -- -- -- -- -- -- -- -- -- 

Year January February March April May June July August September 
Gaged (October 1989 through December 2001) historic streamflow, in cubic feet per second, for the Bois de Sioux River near D

1931 -- -- -- -- -- -- -- -- -- 

1932 -- -- -- -- -- -- -- -- -- 

1933 -- -- -- -- -- -- -- -- -- 

1934 -- -- -- -- -- -- -- -- -- 

1935 -- -- -- -- -- -- -- -- -- 

1936 -- -- -- -- -- -- -- -- -- 

1937 -- -- -- -- -- -- -- -- -- 

1938 -- -- -- -- -- -- -- -- -- 

1939 -- -- -- -- -- -- -- -- -- 

1940 -- -- -- -- -- -- -- -- -- 

1941 -- -- -- -- -- -- -- -- -- 

1942 -- -- -- -- -- -- -- -- -- 

1943 -- -- -- -- -- -- -- -- -- 

1944 -- -- -- -- -- -- -- -- -- 

1945 -- -- -- -- -- -- -- -- -- 

1946 -- -- -- -- -- -- -- -- -- 

1947 -- -- -- -- -- -- -- -- -- 

1948 -- -- -- -- -- -- -- -- -- 

1949 -- -- -- -- -- -- -- -- -- 

1950 -- -- -- -- -- -- -- -- -- 

1951 -- -- -- -- -- -- -- -- -- 

1952 -- -- -- -- -- -- -- -- -- 

1953 -- -- -- -- -- -- -- -- -- 

1954 -- -- -- -- -- -- -- -- -- 

1955 -- -- -- -- -- -- -- -- -- 

1956 -- -- -- -- -- -- -- -- -- 

1957 -- -- -- -- -- -- -- -- -- 

1958 -- -- -- -- -- -- -- -- -- 

1959 -- -- -- -- -- -- -- -- -- 

1960 -- -- -- -- -- -- -- -- -- 

1961 -- -- -- -- -- -- -- -- -- 

1962 -- -- -- -- -- -- -- -- -- 

1963 -- -- -- -- -- -- -- -- -- 

1964 -- -- -- -- -- -- -- -- -- 

1965 -- -- -- -- -- -- -- -- -- 

Year January February March April May June July August September 
Gaged (October 1989 through December 2001) historic streamflow, in cubic feet per second, for the Bois de Sioux River near Doran, 

1966 -- -- -- -- -- -- -- -- -- 

1967 -- -- -- -- -- -- -- -- -- 

1968 -- -- -- -- -- -- -- -- -- 

1969 -- -- -- -- -- -- -- -- -- 

1970 -- -- -- -- -- -- -- -- -- 

1971 -- -- -- -- -- -- -- -- -- 

1972 -- -- -- -- -- -- -- -- -- 

1973 -- -- -- -- -- -- -- -- -- 

1974 -- -- -- -- -- -- -- -- -- 

1975 -- -- -- -- -- -- -- -- -- 

1976 -- -- -- -- -- -- -- -- -- 

1977 -- -- -- -- -- -- -- -- -- 

1978 -- -- -- -- -- -- -- -- -- 

1979 -- -- -- -- -- -- -- -- -- 

1980 -- -- -- -- -- -- -- -- -- 

1981 -- -- -- -- -- -- -- -- -- 

1982 -- -- -- -- -- -- -- -- -- 

1983 -- -- -- -- -- -- -- -- -- 

1984 -- -- -- -- -- -- -- -- -- 

1985 -- -- -- -- -- -- -- -- -- 

1986 -- -- -- -- -- -- -- -- -- 

1987 -- -- -- -- -- -- -- -- -- 

1988 -- -- -- -- -- -- -- -- -- 

1989 -- -- -- -- -- -- -- -- -- 

1990 0.19 0.00 25.50 12.60 11.80 12.60 4.37 0.00 0.00 

1991 0.08 0.15 67.80 53.90 81.00 364.00 951.00 97.80 422.00 

1992 1.69 4.10 75.70 43.60 12.50 66.30 43.70 106.00 2.71 

1993 2.24 3.53 332.00 1,187.00 371.00 495.00 1,477.00 1,486.00 1,244.00 

1994 7.05 7.86 387.00 1,580.00 1,277.00 528.00 1,030.00 190.00 8.17 

1995 5.22 6.23 1,757.00 1,519.00 1,432.00 749.00 180.00 3.11 2.81 

1996 11.30 27.20 829.00 1,598.00 1,253.00 274.00 4.79 2.87 0.37 

1997 43.90 140.00 333.00 5,936.00 1,893.00 665.00 62.30 7.89 7.22 

1998 2.00 155.00 693.00 396.00 378.00 413.00 386.00 2.13 0.07 

1999 5.44 6.67 431.00 188.00 234.00 678.00 154.00 450.00 222.00 

2000 2.53 28.00 410.00 91.50 147.00 19.60 246.00 0.93 0.09 

2001 0.14 0.03 400.00 4,474.00 1,855.00 1,432.00 1,134.00 135.00 5.18 

Year January February March April May June July August September 
Gaged (April 1932 through December 2001) and estimated (January 1931 through March 1932) historic streamflow

in cubic feet per second, for the Wild Rice River near Abercrombie, N. Dak.

1931 0.01 0.28 1.57 8.44 4.83 2.41 0.23 0.01 0.07 

1932 0.07 0.02 1.76 13.40 5.80 3.26 0.71 0.00 0.00 

1933 0.00 0.43 33.20 14.70 7.48 1.82 0.00 0.00 0.00 

1934 0.00 0.00 0.32 3.71 0.11 1.35 0.36 0.00 0.00 

1935 0.00 0.00 152.70 20.00 12.70 42.20 20.00 5.00 1.00 

1936 0.00 0.00 80.40 55.60 13.00 0.36 0.00 0.00 0.00 

1937 0.00 0.00 0.00 117.50 85.10 20.90 18.00 3.89 2.00 

1938 0.00 0.00 86.10 12.60 33.30 9.33 0.36 0.00 0.00 

1939 0.00 0.00 223.00 45.80 3.21 23.40 23.40 1.85 0.00 

1940 0.00 0.00 0.00 71.60 19.40 2.39 0.00 0.00 0.00 

1941 0.00 0.00 79.10 63.50 18.90 78.00 12.20 4.50 9.96 

1942 0.07 0.00 15.00 66.40 151.40 299.60 75.90 45.10 100.10 

1943 6.69 1.83 232.60 1,767.00 174.20 706.90 353.50 51.50 22.60 

1944 0.51 0.37 20.70 148.00 168.60 243.40 463.50 134.30 86.10 

1945 0.89 1.25 1,006.00 412.50 130.40 157.40 15.80 4.19 2.19 

1946 0.00 0.00 537.50 202.60 27.00 8.21 30.60 2.53 0.12 

1947 0.96 0.24 52.80 716.90 158.40 74.50 22.10 0.61 0.00 

1948 0.00 0.00 3.78 217.20 19.60 6.29 5.58 7.16 0.06 

1949 0.00 0.00 32.60 150.30 25.00 7.13 95.00 13.30 0.00 

1950 0.00 0.00 176.60 812.90 593.80 57.50 7.65 1.73 0.00 

1951 0.00 0.00 14.60 583.50 41.00 27.10 19.80 0.46 0.96 

1952 1.19 0.70 0.50 2,352.00 279.10 22.40 29.40 4.68 0.37 

1953 0.73 0.99 95.40 39.70 272.50 321.70 47.50 6.25 0.20 

1954 0.05 0.27 44.20 41.40 31.80 66.10 48.50 0.47 1.54 

1955 0.19 0.03 23.10 106.40 3.33 1.29 1.93 16.90 0.02 

1956 0.00 0.00 0.00 195.70 35.80 2.94 0.00 3.60 0.00 

1957 0.00 0.00 46.00 95.70 58.00 80.80 47.50 21.60 79.80 

1958 2.76 3.26 37.50 159.60 74.10 16.10 25.80 0.08 0.03 

1959 0.00 0.00 11.90 6.70 2.93 23.20 4.05 0.00 0.00 

1960 0.00 0.00 20.50 206.80 54.00 5.07 2.94 0.09 0.00 

1961 0.00 0.00 21.10 8.58 10.40 1.03 0.00 0.00 0.00 

1962 0.00 0.00 0.00 646.80 727.80 929.00 1,787.00 324.60 16.50 

1963 0.17 0.00 43.00 87.00 40.00 453.40 20.30 2.12 0.12 

1964 0.00 0.00 16.40 150.50 92.80 28.60 14.90 1.36 0.67 

1965 0.00 0.00 0.00 732.30 95.80 109.50 79.00 22.80 3.67 

Year January February March April May June July August September 
Gaged (April 1932 through December 2001) and estimated (January 1931 through March 1932) historic streamflow

in cubic feet per second, for the Wild Rice River near Abercrombie, N. Dak.—Continued

1966 1.40 0.23 902.50 333.70 107.50 63.60 59.20 189.70 22.80 

1967 1.89 0.74 197.90 324.60 197.70 481.00 241.20 29.00 0.58 

1968 0.41 0.05 19.30 57.80 51.80 26.00 5.35 1.98 2.95 

1969 0.56 0.30 0.34 3,077.00 351.60 76.40 60.70 31.00 1.25 

1970 1.71 1.03 18.10 139.40 51.60 177.70 41.90 0.07 0.00 

1971 0.00 0.00 105.80 40.00 11.70 17.30 72.90 0.52 8.06 

1972 2.87 0.69 543.30 281.10 499.40 146.20 50.60 16.10 0.39 

1973 2.00 0.78 102.40 25.10 10.50 8.78 9.75 0.01 0.12 

1974 0.35 0.23 65.30 151.10 61.60 17.70 0.10 0.05 0.00 

1975 0.00 0.00 0.22 817.80 140.90 378.10 1,144.00 40.20 3.08 

1976 2.96 24.60 255.30 176.20 25.90 0.73 0.03 0.00 0.00 

1977 0.00 0.00 7.61 20.90 5.15 3.33 3.21 0.15 11.10 

1978 3.52 2.30 614.40 1,018.00 146.20 39.80 222.70 45.70 26.70 

1979 0.70 0.50 0.64 1,931.00 361.90 41.80 63.90 44.10 2.32 

1980 1.75 0.74 118.20 282.60 24.70 55.50 0.94 3.46 0.27 

1981 0.44 3.36 9.67 14.90 2.91 9.21 7.83 1.19 0.00 

1982 0.00 0.00 48.80 359.40 25.20 2.39 26.90 1.07 0.00 

1983 0.89 0.66 107.60 36.50 6.17 0.09 17.70 0.86 7.33 

1984 0.05 37.60 588.00 472.00 64.00 126.00 3.79 1.09 0.00 

1985 1.76 0.68 204.00 30.10 21.00 198.70 8.98 0.05 3.49 

1986 1.98 1.16 433.00 884.00 682.30 67.60 22.00 15.60 159.40 

1987 6.94 6.32 165.30 114.80 41.40 11.50 7.78 0.22 0.01 

1988 0.00 0.00 28.90 11.90 1.43 0.09 4.10 1.14 0.00 

1989 0.00 0.00 3.66 1,808.00 69.70 37.40 2.09 1.07 0.31 

1990 0.00 0.00 8.57 14.90 7.91 0.91 0.02 0.00 0.00 

1991 0.00 0.00 7.69 2.81 27.10 12.70 69.20 4.39 9.57 

1992 0.07 0.58 31.00 44.70 23.00 228.20 105.10 25.70 2.20 

1993 0.00 2.24 250.10 766.40 114.70 152.70 902.40 462.20 99.30 

1994 14.50 9.82 621.10 741.70 241.80 34.30 741.60 40.10 12.20 

1995 7.38 6.92 1,195.00 717.90 410.90 143.50 646.10 63.00 20.50 

1996 6.06 2.55 283.50 924.60 950.60 337.00 49.70 10.70 0.41 

1997 1.10 0.64 1.08 5,510.00 751.20 188.40 179.50 71.90 41.50 

1998 10.70 209.70 657.90 905.00 1,246.00 630.30 1,129.00 240.10 96.50 

1999 72.80 49.80 660.70 530.90 411.90 274.30 151.30 156.50 437.70 

2000 26.40 65.40 409.00 236.00 211.00 126.00 288.00 48.30 3.34 

2001 1.26 1.09 2.35 3,000.00 528.00 163.00 109.00 18.00 2.55 

Year January February March April May June July August September 
Gaged (October 1945 through September 1956) historic streamflow, in cubic feet per second, for the Sheyenne River near Har

1931 -- -- -- -- -- -- -- -- -- 

1932 -- -- -- -- -- -- -- -- -- 

1933 -- -- -- -- -- -- -- -- -- 

1934 -- -- -- -- -- -- -- -- -- 

1935 -- -- -- -- -- -- -- -- -- 

1936 -- -- -- -- -- -- -- -- -- 

1937 -- -- -- -- -- -- -- -- -- 

1938 -- -- -- -- -- -- -- -- -- 

1939 -- -- -- -- -- -- -- -- -- 

1940 -- -- -- -- -- -- -- -- -- 

1941 -- -- -- -- -- -- -- -- -- 

1942 -- -- -- -- -- -- -- -- -- 

1943 -- -- -- -- -- -- -- -- -- 

1944 -- -- -- -- -- -- -- -- -- 

1945 -- -- -- -- -- -- -- -- -- 

1946 0.10 0.00 23.20 7.16 1.15 0.19 2.25 0.01 0.00 

1947 0.00 0.00 23.90 15.60 3.86 7.12 6.81 0.36 0.17 

1948 0.11 0.00 0.20 210.00 29.30 3.24 1.19 0.24 0.00 

1949 0.00 0.00 0.29 165.00 7.70 6.83 1.15 0.00 0.00 

1950 0.00 0.00 3.42 324.00 201.00 30.70 4.94 0.27 0.12 

1951 1.77 0.80 2.16 125.00 22.50 39.60 4.50 1.02 2.83 

1952 0.00 0.00 5.90 114.00 10.60 3.19 6.55 0.03 0.00 

1953 0.00 0.00 6.91 7.64 12.50 8.65 3.11 0.00 0.00 

1954 0.05 8.93 5.20 8.44 3.21 86.20 27.00 5.42 5.72 

1955 0.21 0.00 18.10 32.40 10.90 13.80 2.28 0.08 0.00 

1956 0.00 0.00 12.60 85.60 19.50 22.90 3.19 0.52 0.60 

1957 -- -- -- -- -- -- -- 

1958 -- -- -- -- -- -- -- -- -- 

1959 -- -- -- -- -- -- -- -- -- 

1960 -- -- -- -- -- -- -- -- -- 

1961 -- -- -- -- -- -- -- -- -- 

1962 -- -- -- -- -- -- -- -- -- 

1963 -- -- -- -- -- -- -- -- -- 

1964 -- -- -- -- -- -- -- -- -- 

1965 -- -- -- -- -- -- -- -- -- 

Year January February March April May June July August September 
Gaged (October 1945 through September 1956) historic streamflow, in cubic feet per second, for the Sheyenne River near Harvey, N

1966 -- -- -- -- -- -- -- -- -- 

1967 -- -- -- -- -- -- -- -- -- 

1968 -- -- -- -- -- -- -- -- -- 

1969 -- -- -- -- -- -- -- -- -- 

1970 -- -- -- -- -- -- -- -- -- 

1971 -- -- -- -- -- -- -- -- -- 

1972 -- -- -- -- -- -- -- -- -- 

1973 -- -- -- -- -- -- -- -- -- 

1974 -- -- -- -- -- -- -- -- -- 

1975 -- -- -- -- -- -- -- -- -- 

1976 -- -- -- -- -- -- -- -- -- 

1977 -- -- -- -- -- -- -- -- -- 

1978 -- -- -- -- -- -- -- -- -- 

1979 -- -- -- -- -- -- -- -- -- 

1980 -- -- -- -- -- -- -- -- -- 

1981 -- -- -- -- -- -- -- -- -- 

1982 -- -- -- -- -- -- -- -- -- 

1983 -- -- -- -- -- -- -- -- -- 

1984 -- -- -- -- -- -- -- -- -- 

1985 -- -- -- -- -- -- -- -- -- 

1986 -- -- -- -- -- -- -- -- -- 

1987 -- -- -- -- -- -- -- -- -- 

1988 -- -- -- -- -- -- -- -- -- 

1989 -- -- -- -- -- -- -- -- -- 

1990 -- -- -- -- -- -- -- -- -- 

1991 -- -- -- -- -- -- -- -- -- 

1992 -- -- -- -- -- -- -- -- -- 

1993 -- -- -- -- -- -- -- -- -- 

1994 -- -- -- -- -- -- -- -- -- 

1995 -- -- -- -- -- -- -- -- -- 

1996 -- -- -- -- -- -- -- -- -- 

1997 -- -- -- -- -- -- -- -- -- 

1998 -- -- -- -- -- -- -- -- -- 

1999 -- -- -- -- -- -- -- -- -- 

2000 -- -- -- -- -- -- -- -- -- 

2001 -- -- -- -- -- -- -- -- -- 

Year January February March April May June July August September 
Gaged (April 1956 through December 2001) and estimated (January 1931 through March 1956) historic streamflow

in cubic feet per second, for Baldhill Creek near Dazey, N. Dak.

1931 2.02 8.08 16.98 31.63 9.23 12.81 3.41 2.37 2.00 

1932 4.03 3.28 31.02 76.39 15.71 13.99 6.49 3.32 2.30 

1933 2.53 2.48 57.60 55.65 19.30 7.44 4.30 1.93 1.31 

1934 1.58 2.15 9.02 27.82 6.13 2.75 1.60 1.05 0.98 

1935 1.44 2.42 16.48 24.74 11.60 10.16 11.82 14.90 3.73 

1936 2.54 2.32 7.36 42.76 21.84 6.00 2.48 0.81 0.91 

1937 1.23 0.86 5.07 27.07 11.11 11.26 4.01 2.42 2.33 

1938 1.89 2.04 12.99 8.84 4.26 1.35 2.11 1.38 0.02 

1939 0.05 0.07 13.21 22.24 3.38 2.34 0.26 0.00 0.00 

1940 0.00 0.00 0.00 33.56 9.93 1.36 0.05 0.28 0.01 

1941 0.00 0.00 13.27 185.95 18.74 21.14 9.58 2.88 7.11 

1942 0.88 1.13 5.21 143.80 38.27 26.10 8.92 7.93 7.30 

1943 2.08 4.35 91.71 176.39 29.95 65.18 20.98 6.36 1.28 

1944 0.84 0.98 3.04 21.27 11.87 25.78 10.03 11.93 16.01 

1945 2.47 3.02 106.31 36.22 17.82 15.18 4.78 3.22 2.34 

1946 2.68 1.17 97.53 83.19 12.73 6.20 12.02 8.30 3.37 

1947 2.96 1.68 46.09 125.92 15.94 16.28 6.78 2.98 0.85 

1948 2.66 1.45 4.17 478.45 160.12 17.18 10.66 6.82 1.21 

1949 1.62 1.56 11.31 299.29 33.88 18.21 15.50 2.80 0.24 

1950 0.94 0.85 6.80 562.83 359.71 36.26 10.76 2.80 2.90 

1951 2.23 1.95 11.25 96.42 18.26 9.39 4.18 1.14 3.75 

1952 0.78 1.07 5.46 56.96 7.05 2.56 11.56 1.25 0.59 

1953 0.25 0.75 2.00 3.65 6.33 13.58 18.98 0.86 0.20 

1954 0.37 6.01 17.28 8.69 4.08 43.02 32.62 8.52 5.89 

1955 0.45 0.76 3.19 55.57 8.88 20.43 5.69 0.61 0.06 

1956 0.15 0.35 0.44 118.00 12.10 10.60 3.25 1.75 1.84 

1957 0.68 0.00 7.85 9.60 8.93 5.32 8.64 5.78 58.50 

1958 1.90 2.18 4.64 12.60 7.14 8.60 11.80 2.15 1.28 

1959 0.00 0.00 7.87 6.97 6.84 5.81 3.32 1.50 1.25 

1960 0.02 0.00 32.20 84.90 7.32 7.17 1.85 2.31 2.11 

1961 0.14 0.04 9.81 7.47 5.39 0.91 0.87 0.90 1.94 

1962 0.10 0.10 25.60 46.80 14.30 18.00 14.20 2.53 2.86 

1963 0.09 0.00 2.42 9.97 5.65 3.92 1.77 1.00 1.00 

1964 0.22 0.20 0.59 13.60 6.00 17.60 11.80 4.58 4.53 

1965 0.43 0.41 2.22 248.30 19.50 8.85 11.80 6.80 7.94 

Year January February March April May June July August September 
Gaged (April 1956 through December 2001) and estimated (January 1931 through March 1956) historic streamflow

in cubic feet per second, for Baldhill Creek near Dazey, N. Dak.—Continued

1966 0.24 0.09 163.80 28.70 26.30 22.80 19.70 5.97 2.87 

1967 1.22 0.83 96.60 99.80 40.80 17.70 7.30 3.56 1.45 

1968 0.56 0.55 20.00 14.20 17.30 31.60 11.10 4.88 4.04 

1969 0.27 0.61 2.13 455.90 28.50 20.60 11.70 1.75 3.50 

1970 1.79 2.00 12.70 43.70 26.40 50.60 10.90 6.13 6.86 

1971 0.32 0.90 32.00 87.60 13.50 22.10 9.07 1.71 2.76 

1972 1.38 0.19 66.20 79.80 33.70 13.60 2.57 2.76 1.94 

1973 0.81 1.70 23.40 7.22 5.93 2.85 0.62 0.95 2.97 

1974 0.39 0.73 2.40 232.90 37.40 16.50 2.23 1.91 1.44 

1975 1.55 0.67 9.50 148.20 38.50 20.90 35.70 2.71 2.82 

1976 1.02 3.66 76.80 33.70 7.59 2.41 1.17 0.09 0.13 

1977 0.08 0.41 5.74 6.81 3.11 1.56 1.63 0.85 3.29 

1978 0.73 0.18 59.80 83.70 12.00 3.35 0.82 0.81 0.74 

1979 0.14 0.10 1.30 653.70 82.00 9.55 2.78 1.95 0.92 

1980 0.93 0.45 15.40 29.50 2.69 1.84 0.24 1.98 1.12 

1981 0.80 2.32 2.91 2.44 1.71 2.23 0.44 0.57 0.50 

1982 0.48 1.61 67.50 75.00 10.40 6.48 4.56 0.95 0.61 

1983 2.42 5.38 175.00 38.00 12.60 17.50 17.40 3.56 3.89 

1984 1.91 4.28 143.30 60.40 23.70 5.39 0.64 0.08 0.09 

1985 0.56 1.87 23.50 3.24 3.54 8.72 2.36 1.20 2.41 

1986 2.33 1.73 48.60 31.10 37.40 4.73 5.66 4.62 5.19 

1987 3.05 5.03 269.50 264.40 19.30 9.21 12.50 3.00 3.83 

1988 1.05 1.68 41.40 25.50 9.73 1.94 0.35 0.67 0.55 

1989 0.81 0.45 7.53 58.50 6.15 1.73 0.02 1.97 4.41 

1990 0.00 0.06 2.86 12.30 2.08 12.30 7.31 0.27 0.50 

1991 0.00 0.07 2.36 3.16 7.29 2.54 0.80 0.13 0.33 

1992 1.50 4.61 78.70 7.10 2.58 2.14 2.67 0.65 1.80 

1993 0.06 1.19 76.10 73.20 18.60 12.20 273.30 133.30 52.50 

1994 5.38 4.84 195.90 125.40 35.40 49.40 51.50 14.60 40.10 

1995 7.31 6.42 475.50 337.40 143.30 47.50 82.80 55.00 34.80 

1996 6.34 5.40 106.60 672.80 134.10 53.00 45.50 28.80 8.69 

1997 4.91 5.32 20.10 1,040.00 219.80 38.90 28.00 5.51 6.32 

1998 3.28 34.20 127.50 104.30 32.30 8.15 7.82 3.37 2.87 

1999 3.36 3.72 248.40 409.30 182.90 180.30 64.30 22.90 18.20 

2000 1.58 14.50 24.20 29.20 24.90 91.80 63.90 25.70 14.70 

2001 5.25 3.36 52.40 232.00 65.30 43.20 18.90 36.60 12.60 

Year January February March April May June July August September 
Gaged (April 1944 through September 1975 and March 1995 through December 2001) and estimated (January 1931 through March 1944 a

February 1995) historic streamflow, in cubic feet per second, for the Maple River near Mapleton, N. Dak., and the Maple River at M

1931 0.01 1.48 9.54 28.32 4.88 10.71 0.70 0.99 0.22 

1932 0.08 18.55 311.27 203.12 30.66 12.40 2.61 0.19 0.26 

1933 0.02 0.12 129.80 97.52 19.42 4.33 1.13 0.15 0.07 

1934 0.01 0.09 2.47 34.26 2.97 2.49 0.15 1.09 2.19 

1935 0.00 0.20 71.79 33.23 22.98 7.28 8.80 0.73 0.27 

1936 0.02 0.13 0.73 165.74 16.85 3.03 0.37 0.06 0.06 

1937 0.00 0.13 0.34 46.81 9.53 8.64 0.98 3.02 1.54 

1938 0.01 0.06 34.06 22.51 7.04 1.74 0.27 0.93 0.14 

1939 0.01 0.05 104.39 38.33 1.72 3.08 0.51 0.06 0.04 

1940 0.00 0.01 0.02 138.74 11.30 2.10 0.15 3.87 0.01 

1941 0.01 0.07 23.10 407.85 16.74 30.19 9.61 0.94 1.99 

1942 0.07 0.26 8.06 217.10 81.46 50.62 9.07 2.87 2.15 

1943 0.16 0.21 241.25 110.98 36.54 245.06 56.95 1.64 0.31 

1944 0.09 0.07 1.56 59.10 56.30 23.20 12.90 12.90 9.95 

1945 0.33 0.00 93.20 86.40 25.20 16.50 3.60 3.37 0.47 

1946 0.10 0.03 115.80 69.80 8.82 9.37 4.41 0.04 0.13 

1947 0.13 0.00 100.70 945.60 59.30 353.20 17.90 1.02 4.04 

1948 2.58 0.32 6.33 517.50 51.30 19.50 13.80 9.14 1.55 

1949 0.04 0.00 8.96 209.10 15.40 8.07 7.26 0.23 0.00 

1950 0.04 0.00 86.10 926.70 619.60 76.70 65.20 6.46 2.46 

1951 0.71 0.20 7.37 234.10 16.10 11.60 11.40 6.02 10.80 

1952 1.45 0.36 0.24 905.90 25.70 6.67 48.70 0.55 0.01 

1953 1.42 1.47 25.00 21.00 88.50 716.50 63.40 51.10 1.78 

1954 2.48 3.57 38.40 37.10 14.10 6.52 12.90 2.56 3.15 

1955 1.48 0.25 0.18 117.90 6.30 13.40 63.20 9.47 0.28 

1956 0.02 0.00 0.00 114.10 27.30 13.60 2.90 0.49 0.24 

1957 0.50 0.15 7.10 27.10 13.50 54.30 13.80 15.20 25.50 

1958 2.35 0.59 31.80 74.80 16.90 15.70 42.40 3.09 5.11 

1959 0.00 0.00 10.20 13.90 8.35 113.20 21.00 1.10 0.00 

1960 0.82 0.40 70.30 360.20 15.80 5.82 2.01 0.00 0.00 

1961 0.00 0.00 30.10 18.00 17.30 1.71 0.00 0.00 3.98 

1962 0.44 0.17 0.91 693.40 212.60 170.40 760.90 267.20 65.80 

1963 0.77 0.00 15.50 159.70 33.20 34.90 12.60 6.67 5.63 

1964 0.10 0.10 5.87 110.80 39.10 49.20 17.10 8.65 4.00 

1965 1.20 0.56 0.30 1,149.00 92.50 42.40 64.60 58.20 40.10 

Year January February March April May June July August September 
Gaged (April 1944 through September 1975 and March 1995 through December 2001) and estimated (January 1931 through March 1944 a

February 1995) historic streamflow, in cubic feet per second, for the Maple River near Mapleton, N. Dak., and the Maple River at Maplet

1966 3.07 1.09 1,040.00 456.70 149.50 43.30 22.60 21.10 8.65 

1967 0.82 0.85 78.70 379.00 168.70 28.80 6.55 1.22 0.65 

1968 0.27 0.17 46.60 61.50 30.80 116.20 41.20 11.80 6.17 

1969 0.05 0.00 0.00 1,708.00 151.50 35.60 373.40 35.50 22.00 

1970 3.78 2.13 41.30 522.30 428.50 477.90 32.90 7.05 27.40 

1971 0.49 0.00 206.50 129.80 27.50 38.80 54.70 5.80 27.70 

1972 3.57 1.94 478.00 271.90 374.80 108.40 41.70 52.10 28.90 

1973 4.30 4.85 402.50 79.90 23.70 8.09 1.04 1.93 12.70 

1974 0.23 0.05 0.33 557.80 171.70 49.20 13.50 16.00 7.14 

1975 1.16 0.00 0.94 1,305.00 327.60 345.50 2,375.00 50.30 27.20 

1976 3.69 4.19 265.95 196.58 26.18 9.35 2.78 0.04 0.02 

1977 0.00 0.20 1.76 19.39 12.05 1.80 1.25 0.09 1.51 

1978 0.38 1.59 349.36 713.32 79.01 15.08 8.11 0.98 4.55 

1979 0.32 1.58 2.51 1,915.23 359.09 83.65 33.38 13.69 2.58 

1980 0.36 3.91 55.65 185.23 12.10 6.89 3.10 1.11 1.75 

1981 0.22 4.02 8.66 59.15 9.52 14.50 26.52 7.03 2.18 

1982 0.07 3.43 83.60 615.59 66.09 37.95 27.92 1.21 0.28 

1983 8.59 6.89 495.50 197.20 59.39 54.58 137.74 27.71 43.79 

1984 7.62 6.02 475.83 325.01 83.18 41.04 6.63 0.03 1.26 

1985 1.27 1.88 401.46 72.10 43.78 14.70 2.87 17.55 0.58 

1986 10.91 4.43 460.68 223.64 198.39 23.92 14.65 6.38 4.10 

1987 13.82 5.79 1,163.95 767.37 139.86 38.12 5.10 175.45 49.91 

1988 6.15 12.52 407.26 210.85 40.67 4.04 0.52 0.56 0.37 

1989 0.30 3.40 5.47 597.01 54.31 6.46 1.23 0.98 1.08 

1990 0.05 0.90 2.02 25.35 12.92 5.74 1.35 3.47 1.49 

1991 0.07 2.34 6.15 25.25 80.65 40.78 3.01 0.38 0.62 

1992 1.15 0.14 314.61 30.79 14.90 8.88 8.46 12.42 16.75 

1993 1.15 4.43 172.73 191.42 45.71 63.85 1,305.24 619.82 223.12 

1994 11.85 15.46 672.51 212.53 154.10 77.80 898.12 249.63 378.35 

1995 31.05 15.96 951.50 692.90 300.50 46.20 226.10 47.70 51.60 

1996 3.21 1.37 501.80 1,398.00 362.50 88.90 18.70 13.20 39.00 

1997 2.09 0.58 3.07 2,956.00 597.60 166.20 280.20 29.70 38.60 

1998 12.50 288.40 1,376.00 491.00 377.80 220.50 218.30 37.10 14.70 

1999 20.70 18.40 949.70 1,145.00 1,035.00 94.20 86.80 40.70 401.10 

2000 13.40 44.90 434.00 141.00 58.10 867.00 373.00 19.40 79.60 

2001 15.00 13.60 181.00 1,814.00 303.00 223.00 78.60 57.00 52.50 

Year January February March April May June July August September 
Gaged (August 1946 through December 2001) and estimated (January 1931 through July 1946) historic streamflow

in cubic feet per second, for the Rush River at Amenia, N. Dak.

1931 0.00 0.11 6.08 5.95 1.32 0.91 0.03 0.01 0.01 

1932 0.02 1.31 16.10 23.38 3.15 0.22 0.01 0.01 0.01 

1933 0.00 0.00 43.79 14.45 3.20 0.13 0.01 0.01 0.01 

1934 0.02 0.04 2.19 4.87 0.80 0.05 0.00 0.00 0.01 

1935 0.01 0.04 5.79 3.01 2.35 0.39 0.29 0.40 0.01 

1936 0.00 0.00 1.57 18.57 1.71 0.07 0.01 0.00 0.00 

1937 0.01 0.00 0.86 1.43 0.96 0.46 0.03 0.05 0.04 

1938 0.00 0.00 3.94 0.59 0.71 1.44 0.05 0.03 0.01 

1939 0.01 0.00 4.74 3.54 0.17 0.08 0.01 0.00 0.00 

1940 0.00 0.00 0.06 15.18 1.14 0.08 0.01 0.02 0.01 

1941 0.01 0.02 7.52 51.50 1.70 0.77 0.02 0.04 0.06 

1942 0.00 0.00 3.64 25.21 8.50 7.78 0.23 0.11 4.49 

1943 0.02 0.01 21.71 11.79 3.77 31.03 12.14 0.37 0.31 

1944 0.01 0.02 0.96 6.25 1.99 12.07 46.16 0.63 55.49 

1945 0.05 0.04 69.47 3.83 2.17 3.36 0.17 0.07 0.46 

1946 0.03 0.01 30.54 4.90 1.93 1.48 14.45 0.00 0.00 

1947 0.00 0.00 30.70 174.40 7.83 38.80 1.53 0.00 0.00 

1948 0.10 0.00 0.00 137.90 5.50 1.50 0.51 0.11 0.00 

1949 0.00 0.00 15.20 40.60 2.58 1.09 1.98 0.10 0.00 

1950 0.00 0.00 24.70 203.70 81.30 17.10 2.60 0.03 0.00 

1951 0.00 0.00 29.80 28.20 2.20 3.06 0.63 0.00 0.26 

1952 0.00 0.00 0.00 76.10 1.68 0.08 1.13 0.01 0.00 

1953 0.00 0.00 5.30 2.23 5.66 48.90 8.10 0.91 0.00 

1954 0.00 0.16 5.97 9.09 2.09 1.76 0.04 0.00 0.00 

1955 0.00 0.00 6.13 11.50 0.12 1.38 0.00 1.73 0.00 

1956 0.00 0.00 0.00 25.80 2.79 8.81 0.07 0.00 0.00 

1957 0.00 0.00 3.77 1.72 2.17 16.60 6.65 2.64 1.73 

1958 0.00 1.18 1.89 3.40 1.87 3.09 9.72 0.00 0.00 

1959 0.00 0.00 16.30 1.44 1.23 4.50 0.19 0.00 0.00 

1960 0.00 0.00 27.50 49.00 2.59 0.95 11.50 0.01 0.00 

1961 0.00 0.00 7.54 2.94 2.15 0.15 0.00 0.00 0.00 

1962 0.00 0.00 11.30 93.30 16.80 8.07 38.60 2.76 1.50 

1963 0.00 0.00 2.40 10.20 3.42 3.87 0.02 0.00 0.00 

1964 0.00 0.00 0.00 21.80 4.88 10.20 0.43 0.03 0.10 

1965 0.00 0.00 0.00 108.90 15.20 4.49 5.98 0.10 0.59 

Year January February March April May June July August September 
Gaged (August 1946 through December 2001) and estimated (January 1931 through July 1946) historic streamflow

in cubic feet per second, for the Rush River at Amenia, N. Dak.—Continued

1966 0.00 0.00 58.90 48.20 14.10 4.60 2.44 2.16 0.19 

1967 0.00 0.00 19.00 50.30 9.83 2.74 1.17 0.00 0.00 

1968 0.00 0.00 10.20 9.75 6.71 30.90 1.82 0.00 0.00 

1969 0.00 0.00 0.00 238.20 8.42 5.44 22.70 0.68 0.34 

1970 0.03 0.01 32.30 112.60 24.30 31.30 1.53 0.04 0.47 

1971 0.00 0.00 20.50 18.40 6.96 2.63 0.48 0.00 0.00 

1972 0.02 0.00 20.90 38.60 13.90 1.85 1.11 0.32 0.02 

1973 0.00 0.00 33.80 3.02 1.39 0.20 0.00 0.04 7.88 

1974 0.00 0.00 0.00 136.50 25.70 10.90 3.82 0.45 0.01 

1975 0.00 0.00 0.11 286.30 43.80 40.20 39.50 0.08 0.00 

1976 0.00 2.21 35.40 13.70 1.46 0.03 0.00 0.00 0.00 

1977 0.00 0.00 2.35 3.00 2.35 0.39 0.00 0.00 0.00 

1978 0.00 0.00 81.80 43.50 7.35 4.81 0.39 0.07 0.08 

1979 0.00 0.00 0.00 381.90 20.00 8.94 1.17 0.07 0.00 

1980 0.00 0.00 11.10 16.00 0.87 0.30 0.00 0.49 0.54 

1981 0.00 0.37 1.73 1.12 2.94 3.39 0.16 0.00 0.00 

1982 0.00 0.00 3.55 141.20 17.70 1.66 0.00 0.00 0.00 

1983 0.00 0.36 35.80 18.30 6.85 36.30 10.60 0.02 0.00 

1984 0.00 0.00 135.50 52.50 4.79 21.60 1.16 0.00 0.00 

1985 0.00 0.00 12.70 4.67 11.10 7.08 1.78 0.00 0.00 

1986 0.00 0.00 40.20 91.80 61.40 0.99 40.70 2.77 1.35 

1987 0.45 1.79 101.40 17.70 26.30 7.00 5.78 0.95 0.07 

1988 0.06 0.06 4.39 6.91 1.02 0.01 0.00 0.00 0.00 

1989 0.00 0.00 16.80 84.70 2.34 1.18 0.00 0.00 5.87 

1990 0.00 0.00 0.94 4.43 3.24 21.10 6.93 0.01 0.00 

1991 0.00 0.00 3.77 1.48 10.70 1.52 6.43 0.14 0.00 

1992 0.00 0.00 23.00 4.08 1.34 5.57 20.10 0.01 0.00 

1993 0.00 0.00 38.30 29.30 7.28 7.49 168.00 22.30 0.85 

1994 0.00 0.00 67.40 16.60 7.86 3.72 58.50 22.10 40.10 

1995 1.62 0.73 160.00 69.40 37.90 1.88 16.20 4.77 3.91 

1996 0.98 0.91 50.50 198.70 64.40 8.03 1.93 1.45 47.30 

1997 2.84 2.20 37.80 530.60 36.10 78.10 54.50 1.20 3.59 

1998 1.06 84.20 126.50 17.30 39.70 123.40 57.70 0.96 0.17 

1999 2.16 2.32 199.90 119.40 55.00 3.09 6.69 2.21 4.90 

2000 0.30 2.71 20.00 10.40 6.01 92.30 8.86 1.10 0.66 

2001 0.95 0.85 9.15 196.00 43.60 4.34 2.52 6.29 1.59 

Year January February March April May June July August September 
Gaged (April 1931 through December 2001) and estimated (January through March 1931) historic streamflow,

in cubic feet per second, for the Buffalo River near Dilworth, Minn.

1931 5.32 16.83 68.68 33.50 27.20 26.10 17.40 12.70 6.18 

1932 10.80 11.50 54.20 123.00 51.40 31.60 6.66 2.85 5.73 

1933 4.62 4.40 90.50 119.30 60.90 24.00 9.01 7.27 7.78 

1934 11.00 15.00 38.00 141.30 28.50 15.10 4.09 1.45 5.73 

1935 9.16 15.00 123.80 76.80 60.30 42.90 40.20 15.90 8.66 

1936 2.97 1.00 65.00 579.10 98.30 17.60 2.23 0.00 0.79 

1937 6.00 5.00 3.00 136.80 104.60 46.90 14.10 17.20 14.80 

1938 4.34 5.46 105.70 51.20 247.10 85.40 17.10 7.00 7.23 

1939 5.80 4.17 216.00 270.20 32.20 18.80 7.84 1.74 1.75 

1940 0.87 0.76 2.26 228.80 64.10 18.00 6.26 11.10 5.78 

1941 9.44 9.84 61.60 350.60 46.70 61.50 12.30 7.40 19.10 

1942 2.24 1.56 29.10 87.10 295.80 208.70 35.80 31.40 152.70 

1943 10.70 8.12 74.20 1,158.00 234.20 434.00 247.50 109.30 41.80 

1944 8.65 9.76 23.40 214.30 230.10 263.40 473.30 710.00 517.50 

1945 21.60 15.90 861.30 582.80 246.40 133.90 31.10 22.20 50.70 

1946 13.10 9.52 441.40 229.80 101.00 86.90 269.40 53.10 32.20 

1947 30.10 21.50 127.70 1,054.00 267.90 274.10 67.70 18.40 20.00 

1948 17.00 16.20 44.40 618.10 98.70 62.10 34.70 23.60 14.60 

1949 10.90 9.84 18.20 215.30 108.50 36.80 101.40 55.10 17.00 

1950 9.55 6.18 202.50 1,577.00 852.20 167.50 53.10 16.10 12.70 

1951 13.50 13.80 19.20 800.40 144.30 173.30 51.60 32.90 38.70 

1952 27.30 26.70 28.80 1,284.00 120.10 32.70 507.90 231.90 91.70 

1953 15.70 17.40 202.30 295.00 249.50 955.80 132.90 206.00 53.50 

1954 22.10 31.90 98.90 358.00 263.30 142.70 45.50 20.30 25.80 

1955 13.00 13.30 14.50 367.80 89.30 99.50 466.10 435.30 55.90 

1956 16.80 20.10 25.00 1,034.00 221.40 98.20 26.00 23.70 14.10 

1957 13.90 14.20 187.40 346.10 145.10 210.10 198.10 65.20 336.00 

1958 31.60 26.60 60.70 115.90 77.80 139.50 653.10 53.80 79.80 

1959 16.90 13.60 116.50 212.30 171.40 389.00 388.40 87.50 54.20 

1960 34.30 26.90 62.30 837.10 356.50 126.00 103.00 42.00 44.20 

1961 17.50 16.50 142.60 162.70 247.20 51.90 19.40 9.02 16.20 

1962 9.89 11.40 15.00 673.60 906.20 2,138.00 563.40 153.40 65.50 

1963 9.60 6.23 94.70 232.40 158.50 492.20 29.80 70.60 101.80 

1964 16.80 18.10 44.50 854.10 349.10 119.20 43.50 18.40 29.00 

1965 15.80 16.40 17.00 1,392.00 309.20 260.80 77.60 40.30 55.80 

Year January February March April May June July August September 
Gaged (April 1931 through December 2001) and estimated (January through March 1931) historic streamflow,

in cubic feet per second, for the Buffalo River near Dilworth, Minn.—Continued

1966 36.50 29.10 1,308.00 638.60 405.50 105.30 82.50 185.70 49.10 

1967 36.30 39.90 195.10 851.30 280.70 328.10 84.10 20.50 16.00 

1968 10.50 10.30 92.40 169.10 129.40 108.10 75.50 22.40 32.60 

1969 17.30 15.00 17.90 1,903.00 195.60 63.80 98.40 31.70 17.20 

1970 19.10 18.40 42.80 439.50 258.50 245.30 51.40 9.10 9.44 

1971 12.50 13.80 83.60 255.30 84.40 59.30 116.10 21.20 122.00 

1972 34.90 30.40 714.40 622.70 419.60 134.90 44.80 46.60 29.50 

1973 15.70 15.70 122.20 97.60 66.80 36.20 22.90 23.50 131.70 

1974 30.50 32.60 52.00 773.80 455.60 186.10 69.00 55.00 29.70 

1975 20.20 19.00 27.00 951.10 394.40 805.10 2,814.00 78.90 31.40 

1976 25.30 28.50 194.50 306.60 66.50 23.80 10.10 1.74 2.54 

1977 8.82 9.37 41.40 89.30 35.20 37.00 28.70 5.48 36.70 

1978 51.20 30.70 388.50 1,984.00 187.50 61.30 36.30 13.40 9.52 

1979 14.30 13.00 17.90 1,335.00 323.00 121.90 187.90 53.70 16.90 

1980 21.60 23.80 67.70 496.50 58.40 33.90 12.90 10.40 29.80 

1981 17.50 29.00 61.60 83.40 152.10 46.80 40.40 61.50 37.50 

1982 13.30 14.40 237.90 714.50 152.20 55.50 77.90 27.00 17.70 

1983 25.40 26.60 202.70 145.70 103.80 75.80 806.90 106.40 59.80 

1984 28.80 61.10 617.90 534.90 126.10 564.10 55.20 13.30 10.80 

1985 26.00 20.70 343.20 174.80 644.00 624.00 146.90 97.00 140.70 

1986 46.70 44.30 581.20 1,364.00 908.90 436.20 152.40 58.00 200.80 

1987 53.50 55.80 554.00 228.60 154.40 65.70 35.20 35.90 27.00 

1988 23.30 22.50 263.30 274.90 80.90 29.40 8.18 13.30 14.10 

1989 21.00 19.70 49.90 1,359.00 134.70 56.00 17.20 17.60 93.80 

1990 20.40 23.60 106.00 217.40 141.80 135.80 37.20 11.00 10.90 

1991 14.70 19.10 82.80 138.30 260.50 110.70 150.10 19.60 17.10 

1992 30.80 38.20 171.10 105.20 75.30 180.10 152.10 33.00 52.30 

1993 25.50 27.00 125.30 632.60 149.50 257.40 1,495.00 910.50 158.70 

1994 53.50 50.10 630.80 536.30 292.90 116.10 155.40 66.20 49.60 

1995 46.00 48.30 682.20 459.80 279.60 76.70 206.60 45.30 33.40 

1996 38.00 35.00 152.70 1,069.00 720.80 223.90 52.10 32.30 26.40 

1997 36.60 34.10 33.50 3,412.00 451.40 331.20 461.50 103.10 107.40 

1998 85.70 284.90 785.30 558.20 1,144.00 706.20 1,474.00 94.90 59.30 

1999 73.40 91.70 451.70 756.90 638.40 288.90 261.40 142.70 484.30 

2000 69.40 102.00 720.00 388.00 211.00 1,102.00 512.00 77.60 188.00 

2001 99.00 88.60 86.10 2,761.00 625.00 484.00 132.00 59.20 52.20 

Year January February March April May June July August September 
Gaged (October 1955 through September 1963 and October 1980 through August 1986; incomplete winter data for October 1981 throug

estimated (January 1931 through September 1955, October 1963 through September 1980, September 1986 through December 2001, an

for October 1981 through February 1986) historic streamflow, in cubic feet per second, for the Elm River near Kelso, N

1931 0.00 0.04 0.49 0.26 0.02 0.03 0.13 0.00 0.00 

1932 0.00 0.54 61.39 25.53 0.61 0.23 0.40 0.00 0.00 

1933 0.00 0.00 18.48 4.61 0.20 0.06 0.19 0.00 0.00 

1934 0.00 0.00 0.08 0.40 0.01 0.01 0.03 0.00 0.01 

1935 0.00 0.00 2.93 0.37 0.30 8.20 1.12 0.00 0.00 

1936 0.00 0.00 0.00 15.89 0.14 0.01 0.07 0.00 0.00 

1937 0.00 0.00 0.00 0.08 0.03 0.14 0.17 0.02 0.01 

1938 0.00 0.00 0.62 0.01 0.05 0.00 0.15 0.02 0.00 

1939 0.00 0.00 6.37 0.52 0.00 0.12 0.10 0.00 0.00 

1940 0.00 0.00 0.00 10.50 0.05 0.01 0.03 0.04 0.00 

1941 0.00 0.00 0.28 129.75 0.14 4.38 1.21 0.00 0.01 

1942 0.00 0.00 0.03 29.82 6.94 1.26 1.15 0.02 0.01 

1943 0.00 0.00 36.18 6.24 0.95 9.18 5.60 0.01 0.00 

1944 0.00 0.00 0.00 1.69 0.20 0.60 2.79 1.88 0.23 

1945 0.00 0.00 6.29 0.61 0.25 0.41 0.65 0.00 0.00 

1946 0.00 0.00 34.25 1.02 0.18 0.13 8.03 0.00 0.00 

1947 0.00 0.00 10.07 73.53 1.30 3.21 1.23 0.01 0.00 

1948 0.00 0.00 0.00 1,867.56 26.61 0.72 1.98 0.15 0.00 

1949 0.00 0.00 0.00 129.23 1.27 25.70 1.73 0.23 0.00 

1950 0.01 0.01 1.09 2,636.17 3,643.68 18.98 13.18 0.21 0.08 

1951 0.06 0.05 5.41 38.28 0.61 0.29 1.60 0.00 0.03 

1952 0.03 0.01 0.08 49.83 0.08 0.00 3.99 0.13 0.00 

1953 0.01 0.01 0.39 0.17 0.67 19.16 6.12 0.01 0.01 

1954 0.01 0.36 1.91 1.46 0.28 2.08 8.34 0.00 0.00 

1955 0.00 0.00 0.00 20.43 0.06 4.42 6.46 0.01 0.00 

1956 0.00 0.00 0.00 10.20 2.08 2.07 0.00 0.00 0.00 

1957 0.00 0.00 0.27 0.12 0.00 0.00 0.00 0.00 0.00 

1958 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 

1959 0.00 0.00 0.71 0.19 0.00 0.00 0.00 0.00 0.00 

1960 0.00 0.00 5.16 46.80 0.16 0.01 0.00 0.00 0.00 

1961 0.00 0.00 1.87 0.21 0.05 0.00 0.00 0.00 0.00 

1962 0.00 0.00 0.00 91.50 11.40 8.94 37.60 1.43 5.19 

1963 0.03 0.00 1.72 8.83 0.92 0.49 0.00 0.00 0.00 

1964 0.01 0.03 0.00 9.60 0.25 71.64 5.94 0.05 0.10 

1965 0.02 0.01 0.00 1,451.44 37.00 5.56 2.74 0.73 1.64 

Year January February March April May June July August September 
Gaged (October 1955 through September 1963 and October 1980 through August 1986; incomplete winter data for October 1981 throug

estimated (January 1931 through September 1955, October 1963 through September 1980, September 1986 through December 2001, an

for October 1981 through February 1986) historic streamflow, in cubic feet per second, for the Elm River near Kelso, N. Dak.—

1966 0.17 0.07 1,420.26 107.69 33.71 8.57 3.77 18.25 0.47 

1967 0.04 0.03 66.93 461.47 145.39 10.39 1.00 0.01 0.00 

1968 0.03 0.01 9.67 1.05 1.05 133.60 1.25 0.50 0.24 

1969 0.03 0.02 0.01 1,365.00 21.06 7.18 7.61 0.31 1.29 

1970 0.16 0.18 0.07 742.14 145.36 66.69 3.41 0.11 0.12 

1971 0.02 0.04 3.83 115.68 4.30 5.50 7.85 0.07 0.03 

1972 0.09 0.04 163.62 294.87 75.39 10.26 1.23 0.07 0.01 

1973 0.02 0.06 63.02 0.98 0.25 0.22 0.15 0.01 0.03 

1974 0.00 0.02 0.00 595.45 114.89 33.74 1.04 2.06 0.06 

1975 0.08 0.06 0.34 435.13 80.63 8.81 92.69 0.01 0.01 

1976 0.03 0.04 44.29 23.66 0.41 0.07 0.42 0.00 0.00 

1977 0.00 0.00 0.00 0.11 0.06 0.04 0.21 0.00 0.01 

1978 0.03 0.01 78.00 477.82 6.43 1.51 1.05 0.00 0.05 

1979 0.01 0.01 0.00 4,780.82 157.71 5.84 3.54 0.32 0.02 

1980 0.04 0.04 1.73 20.59 0.06 0.01 0.46 0.00 0.01 

1981 0.00 0.01 0.01 0.01 0.00 0.00 0.00 0.00 0.00 

1982 0.04 0.03 4.72 240.10 14.50 2.35 2.83 0.00 0.00 

1983 0.12 0.10 131.00 68.30 9.03 111.40 20.50 4.00 2.38 

1984 0.11 0.08 146.70 54.60 8.29 94.10 0.54 0.00 0.03 

1985 0.00 0.01 50.30 11.70 2.69 1.05 0.00 0.32 0.00 

1986 0.06 0.05 85.20 97.60 24.50 2.79 3.05 0.16 0.04 

1987 0.23 0.07 946.77 566.54 26.53 11.36 0.70 26.07 2.99 

1988 0.22 0.28 107.20 27.86 1.24 0.26 0.10 0.00 0.00 

1989 0.03 0.03 0.01 315.50 2.54 0.58 0.21 0.00 0.00 

1990 0.00 0.00 0.00 0.20 0.07 0.11 0.22 0.03 0.04 

1991 0.00 0.02 0.02 0.20 6.77 2.75 3.47 0.00 0.01 

1992 0.00 0.00 62.76 0.31 0.10 0.17 1.09 0.27 0.46 

1993 0.03 0.05 18.09 22.23 1.65 2.81 82.69 229.40 39.44 

1994 0.72 0.40 303.43 28.38 33.75 20.85 3.65 47.86 97.99 

1995 1.29 0.42 1,769.42 512.38 230.31 11.97 12.94 8.34 4.94 

1996 0.52 0.21 3.58 2,197.22 195.80 18.69 6.82 0.36 0.11 

1997 0.23 0.37 0.59 6,836.41 127.66 21.56 17.55 6.07 0.73 

1998 0.05 46.07 423.35 49.48 9.40 9.75 21.97 0.20 0.03 

1999 0.41 0.25 868.86 1,260.42 1,337.73 183.80 22.71 3.66 7.71 

2000 1.10 11.47 9.98 891.28 4.84 14.54 20.20 7.60 0.34 

2001 5.48 8.50 24.81 4,201.92 122.49 67.18 18.91 34.72 0.73 

Year January February March April May June July August September 
Gaged (April 1944 through September 1984 and May 1985 through December 2001) and estimated (January 1931 through Ma

October 1984 through April 1985) historic streamflow, in cubic feet per second, for the Wild Rice River at Hendrum, M

1931 2.09 20.31 114.04 60.86 53.80 51.07 20.59 13.91 5.67 

1932 11.37 12.29 84.72 223.11 106.65 62.46 6.23 2.16 5.16 

1933 3.95 3.72 160.39 216.40 127.99 46.75 9.07 6.95 7.56 

1934 11.63 17.11 54.45 256.26 56.57 28.70 3.39 0.93 5.16 

1935 9.26 17.11 236.92 139.39 126.63 86.18 58.40 18.40 8.64 

1936 2.28 0.59 106.22 1,048.45 214.16 33.73 1.59 2.08 0.44 

1937 5.47 4.36 2.31 248.11 228.96 94.66 15.85 20.29 16.83 

1938 3.65 4.86 194.60 92.97 577.01 177.91 20.15 6.63 6.90 

1939 5.24 3.48 473.77 489.64 64.50 36.15 7.63 1.17 1.18 

1940 0.49 0.42 1.62 414.70 135.23 34.53 5.77 11.76 5.22 

1941 9.61 10.12 99.35 635.14 96.20 125.91 13.37 7.10 23.12 

1942 1.60 1.02 39.06 158.06 700.15 455.82 50.55 42.93 307.64 

1943 11.24 7.97 125.26 2094.76 544.69 985.32 561.28 202.88 61.31 

1944 8.62 10.02 29.77 303.40 501.60 661.20 1,122.00 960.00 762.30 

1945 76.00 63.40 1,077.00 1,451.00 670.80 243.50 99.60 93.90 148.80 

1946 35.20 22.90 744.70 881.50 425.80 264.70 201.30 30.20 35.80 

1947 54.50 46.70 176.60 1,789.00 662.80 735.10 98.00 13.60 5.99 

1948 4.09 3.40 3.24 837.40 156.50 38.70 18.40 3.93 0.18 

1949 0.80 0.40 0.46 226.90 99.00 203.70 428.30 274.50 55.40 

1950 13.40 12.60 84.60 1,738.00 1,634.00 482.50 258.20 7.50 4.56 

1951 3.03 2.81 8.16 798.90 196.70 71.80 8.82 7.76 16.60 

1952 99.20 83.10 80.80 1,239.00 296.10 9.15 272.90 147.00 58.10 

1953 36.90 36.60 197.60 500.40 439.80 887.80 559.50 236.30 89.30 

1954 61.50 72.80 128.00 727.20 595.80 326.60 118.60 33.70 29.10 

1955 21.90 31.00 33.00 608.90 283.00 261.30 140.30 171.10 14.70 

1956 13.60 18.40 23.50 1,175.00 417.70 224.80 41.30 23.00 19.20 

1957 14.40 14.40 161.20 427.40 322.40 331.30 365.10 108.60 346.50 

1958 49.10 43.00 109.70 172.70 101.00 161.00 222.00 43.70 37.40 

1959 22.30 19.40 118.70 301.60 301.10 268.30 212.20 88.40 37.90 

1960 56.20 46.90 95.40 896.60 407.00 428.50 212.00 101.60 167.10 

1961 40.00 36.20 208.10 304.20 600.40 183.00 54.40 24.80 34.80 

1962 26.00 22.50 33.30 616.80 953.30 1,776.00 784.50 205.10 114.20 

1963 10.40 5.72 112.10 474.30 369.00 802.70 129.60 55.00 62.50 

1964 19.50 24.20 28.40 1,178.00 637.00 483.20 175.40 51.00 41.10 

1965 29.70 31.40 23.40 2,259.00 750.60 731.50 242.80 68.70 75.90 

Year January February March April May June July August September 
Gaged (April 1944 through September 1984 and May 1985 through December 2001) and estimated (January 1931 through Ma

October 1984 through April 1985) historic streamflow, in cubic feet per second, for the Wild Rice River at Hendrum, Minn.—

1966 85.50 56.10 1,485.00 1,950.00 987.10 288.00 124.50 219.30 104.20 

1967 61.40 68.90 308.70 1,570.00 643.30 521.80 252.70 43.80 17.20 

1968 32.30 21.80 207.90 387.10 318.00 242.50 187.70 67.80 87.10 

1969 55.90 61.70 71.10 2,478.00 544.60 304.60 167.60 51.10 37.50 

1970 68.30 54.00 58.80 1,430.00 1,071.00 1,323.00 211.10 37.40 23.80 

1971 34.80 37.60 195.40 794.60 332.10 161.60 75.50 36.10 121.10 

1972 91.20 70.00 990.00 1,740.00 895.30 328.40 151.90 118.90 62.50 

1973 39.60 43.20 407.10 244.80 204.60 142.40 82.00 83.00 823.70 

1974 80.90 80.50 87.30 2,345.00 1,635.00 549.20 178.00 124.90 43.10 

1975 61.60 65.60 99.40 2,155.00 1,156.00 880.50 3,136.00 213.90 82.10 

1976 63.90 73.70 468.70 830.10 195.20 82.20 41.20 8.11 0.72 

1977 0.09 0.22 28.80 167.40 56.10 36.70 12.70 1.07 25.50 

1978 81.30 51.50 144.00 3,261.00 407.80 165.90 73.10 63.40 92.40 

1979 29.80 29.20 61.10 3,060.00 1,134.00 418.20 603.00 79.50 46.20 

1980 46.60 48.20 71.00 673.20 153.80 46.80 11.90 6.04 12.30 

1981 8.94 12.30 52.40 105.50 178.50 144.90 176.90 148.00 168.70 

1982 62.40 60.00 219.20 1,637.00 612.50 219.60 112.80 39.00 19.10 

1983 46.90 46.40 721.60 358.30 175.30 422.40 775.70 168.60 100.50 

1984 64.40 123.90 791.10 884.60 246.50 1,554.00 118.80 23.00 14.50 

1985 33.94 25.56 843.22 316.93 2,074.00 1,195.00 757.20 494.70 309.90 

1986 120.90 102.00 600.50 2,366.00 1,611.00 494.10 207.10 87.90 124.20 

1987 81.50 75.50 864.00 434.70 464.70 273.20 386.60 234.80 98.80 

1988 66.00 59.50 467.30 717.30 206.70 54.80 16.20 22.40 30.90 

1989 50.40 54.40 72.00 2,387.00 494.10 263.30 61.00 13.50 109.40 

1990 16.10 19.60 139.90 488.40 304.40 280.20 71.90 12.30 3.89 

1991 17.00 27.00 146.30 233.10 548.80 135.50 141.60 25.90 22.80 

1992 36.80 39.00 492.50 205.60 226.40 112.60 597.90 261.40 307.70 

1993 71.00 74.30 245.20 1,065.00 349.10 422.50 1,605.00 1,833.00 356.90 

1994 84.50 77.30 343.50 1,116.00 696.80 721.70 836.90 239.50 419.90 

1995 123.20 115.90 1,373.00 858.70 859.20 224.20 979.60 306.70 141.90 

1996 148.70 149.30 144.50 3,087.00 2,059.00 506.60 142.00 63.80 41.90 

1997 131.90 21.80 129.80 5,115.00 1,149.00 658.80 1,587.00 295.80 156.10 

1998 187.50 767.10 1,366.00 804.10 2,137.00 1,763.00 1,756.00 191.10 79.50 

1999 153.90 139.50 1,257.00 2,056.00 1,922.00 929.80 1,009.00 651.90 1,329.00 

2000 166.00 172.00 979.00 629.00 353.00 2,507.00 978.00 216.00 292.00 

2001 245.00 209.00 222.00 4,598.00 1,460.00 884.00 273.00 354.00 153.00 

Year January February March April May June July August September 
Gaged (April 1931 through October 1932, April through June 1933, and April 1934 through December 2001) and estimated (January through 

through March 1933, and July 1933 through March 1934) historic streamflow, in cubic feet per second, for the Goose River at Hi

1931 0.13 1.59 11.29 26.80 3.56 4.24 1.27 1.33 0.33 

1932 0.20 20.00 272.20 238.60 27.40 12.60 0.98 0.29 0.39 

1933 0.20 0.16 131.38 105.70 16.50 6.01 1.16 0.23 0.11 

1934 0.08 0.12 3.17 33.10 2.05 2.75 1.24 1.45 2.77 

1935 0.20 0.30 70.00 32.00 19.90 86.00 12.00 1.00 0.40 

1936 0.20 0.20 1.00 190.40 14.10 2.77 0.58 0.10 0.10 

1937 0.10 0.20 0.50 15.40 7.49 9.65 2.43 3.73 2.00 

1938 0.10 0.10 35.10 6.51 5.35 1.35 0.01 0.00 0.00 

1939 0.00 0.00 99.00 37.50 1.12 9.02 0.12 0.00 0.00 

1940 0.00 0.00 0.00 156.30 9.05 1.63 0.00 4.69 0.01 

1941 0.00 0.00 24.50 517.20 14.00 61.40 6.93 1.26 2.53 

1942 0.07 0.00 9.25 256.90 81.10 31.40 6.05 3.55 2.72 

1943 0.45 0.32 215.00 122.00 33.30 91.40 21.50 2.12 0.46 

1944 0.17 0.12 2.02 65.50 16.60 21.20 5.72 39.00 12.70 

1945 0.66 0.64 98.50 40.50 18.20 17.10 5.98 1.30 1.09 

1946 0.47 0.56 209.80 51.60 16.00 9.11 8.85 0.54 0.84 

1947 0.22 0.14 121.50 394.70 38.30 52.00 9.17 1.94 0.89 

1948 0.45 0.10 0.53 1,840.00 148.00 23.20 15.60 9.90 0.95 

1949 0.46 0.26 1.14 516.20 37.90 158.90 18.60 12.50 1.11 

1950 2.69 2.37 45.10 2,168.00 2,275.00 135.00 57.90 12.00 7.18 

1951 6.27 5.81 92.10 289.30 27.40 14.40 3.61 1.58 4.29 

1952 0.00 1.84 14.20 328.00 11.20 1.43 131.40 9.13 1.41 

1953 1.88 1.92 28.40 21.80 28.60 135.70 101.60 2.17 2.86 

1954 2.55 16.10 57.80 61.20 19.30 41.20 4.69 0.70 0.35 

1955 0.57 0.70 0.98 214.60 6.35 61.70 5.66 2.58 0.16 

1956 0.58 0.50 0.71 281.70 55.40 57.30 6.05 0.99 0.97 

1957 0.99 0.74 18.30 17.80 7.88 10.50 5.30 0.11 53.00 

1958 0.96 0.81 1.57 15.80 4.87 3.15 29.00 3.52 0.46 

1959 0.00 0.00 33.60 37.20 6.70 6.81 0.48 1.33 0.29 

1960 0.88 0.80 71.80 435.50 15.00 12.70 10.20 4.13 1.61 

1961 0.77 0.82 54.40 26.90 19.60 3.47 0.16 0.08 0.40 

1962 0.57 0.52 0.85 690.00 179.00 146.10 48.00 11.00 122.80 

1963 2.32 0.30 29.30 89.00 18.40 10.50 11.80 2.08 0.35 

1964 0.00 0.00 1.52 149.80 18.50 275.60 29.70 5.31 8.27 

1965 3.00 1.84 1.38 1,632.00 171.50 69.80 67.90 23.40 36.20 

Year January February March April May June July August September 
Gaged (April 1931 through October 1932, April through June 1933, and April 1934 through December 2001) and estimated (January through 

through March 1933, and July 1933 through March 1934) historic streamflow, in cubic feet per second, for the Goose River at Hillsboro

1966 10.80 6.86 1,106.00 473.30 164.50 88.10 118.30 132.20 18.60 

1967 4.76 3.90 282.90 946.00 403.10 97.70 17.10 2.18 1.04 

1968 4.22 2.38 119.30 52.20 34.90 385.20 53.50 19.20 12.80 

1969 3.97 3.56 5.79 1,585.00 133.30 80.10 73.60 14.90 31.80 

1970 10.30 10.90 13.30 1,186.00 316.30 265.20 38.60 8.58 8.89 

1971 3.57 4.96 78.90 489.70 65.50 69.40 62.00 6.63 4.07 

1972 7.39 4.93 421.60 764.40 235.80 97.00 11.30 6.79 2.71 

1973 3.67 5.97 275.40 50.50 18.50 12.20 3.62 1.78 4.41 

1974 1.33 3.06 2.44 1,068.00 284.70 183.90 37.80 40.90 6.06 

1975 6.91 6.18 26.70 919.90 243.00 89.40 58.60 2.84 2.22 

1976 3.86 5.05 235.30 230.10 23.00 6.47 1.14 0.06 0.00 

1977 0.30 0.30 2.26 17.60 9.72 5.06 4.18 0.15 1.96 

1978 4.06 2.06 302.90 961.80 78.40 34.70 9.93 1.32 5.44 

1979 1.70 2.05 3.14 2,878.00 421.10 71.70 44.30 15.10 3.22 

1980 5.02 4.73 55.30 215.40 9.76 2.65 0.44 1.48 2.25 

1981 2.16 4.85 9.88 6.61 7.48 14.40 7.64 8.15 2.76 

1982 5.23 4.19 80.60 816.70 64.30 19.10 18.80 1.60 0.42 

1983 8.96 8.00 418.60 230.90 57.10 129.60 62.70 29.00 44.30 

1984 8.42 7.06 403.20 402.00 83.00 114.50 4.14 0.06 0.00 

1985 0.83 2.40 344.50 75.60 40.70 13.70 0.58 19.00 0.81 

1986 6.08 5.31 391.30 265.50 217.90 41.70 46.70 7.45 4.94 

1987 12.70 6.81 922.90 1,043.00 147.80 102.50 532.50 160.10 50.00 

1988 12.40 13.90 349.10 248.70 37.50 13.50 4.52 0.78 0.54 

1989 4.58 4.16 6.46 789.40 51.70 20.80 3.15 1.32 1.44 

1990 0.84 1.21 2.57 23.70 10.50 8.65 13.90 4.24 0.00 

1991 0.28 2.94 7.20 23.60 80.20 47.80 8.91 0.55 0.00 

1992 0.37 0.21 274.90 29.40 12.30 10.70 108.00 13.80 18.20 

1993 3.95 5.31 157.80 223.40 42.70 48.40 729.10 515.00 200.00 

1994 23.20 16.90 555.40 250.90 164.60 142.00 426.20 221.90 326.10 

1995 31.80 17.40 1,220.00 994.30 516.10 105.40 307.40 86.80 65.50 

1996 19.50 12.00 76.60 1,988.00 473.00 133.90 88.80 16.00 8.68 

1997 12.50 16.30 34.20 3,412.00 375.90 144.60 464.60 73.20 23.40 

1998 5.42 217.40 644.40 326.90 92.90 94.40 76.80 11.80 4.56 

1999 17.30 13.30 888.20 1,526.00 1,328.00 457.20 306.00 55.80 83.20 

2000 29.20 103.00 121.00 71.20 79.80 954.00 611.00 91.70 19.20 

2001 47.10 40.10 333.00 1,294.00 428.00 117.00 65.60 82.60 15.50 

Year January February March April May June July August September 
Gaged (March 1944 through September 1983 and April 1985 through October 2001; incomplete winter data for November 1989 through 

estimated (January 1931 through February 1944, October 1983 through March 1985, and missing winter data for November 1989 thro

historic streamflow, in cubic feet per second, for the Marsh River near Shelly, Minn.

1931 0.01 0.11 5.64 20.07 3.87 4.89 0.06 0.05 0.03 

1932 0.07 0.08 148.96 7.21 1.31 5.94 0.03 0.00 0.02 

1933 0.01 0.01 9.35 6.78 1.90 1.46 0.05 0.03 0.04 

1934 0.07 0.14 1.51 9.54 0.36 0.29 0.01 0.00 0.02 

1935 0.05 0.14 30.78 2.78 1.86 2.92 1.13 0.16 0.04 

1936 0.00 0.00 0.22 165.22 5.48 0.91 0.00 0.01 0.00 

1937 0.02 0.01 0.10 8.94 6.29 3.67 0.13 0.19 0.14 

1938 0.01 0.02 13.81 1.23 41.99 7.13 0.19 0.03 0.03 

1939 0.02 0.01 46.03 35.38 0.47 0.93 0.04 0.00 0.00 

1940 0.00 0.00 0.00 25.28 2.13 0.56 0.02 0.08 0.02 

1941 0.05 0.06 9.09 59.90 1.06 19.44 0.09 0.03 0.24 

1942 0.00 0.00 2.93 3.59 62.47 38.73 0.89 0.67 18.74 

1943 0.07 0.04 113.27 670.66 37.30 316.85 51.73 9.28 1.23 

1944 0.04 0.06 0.14 83.30 43.50 113.40 327.80 163.90 143.80 

1945 0.82 0.35 437.20 629.40 184.50 22.40 7.24 2.61 1.83 

1946 0.00 0.00 363.50 280.20 60.70 13.00 12.80 0.06 0.45 

1947 0.00 0.00 22.00 1,273.00 424.30 607.50 129.90 65.90 56.00 

1948 35.40 25.10 28.90 656.30 265.80 102.20 76.00 40.60 11.70 

1949 18.20 14.90 18.10 216.70 198.30 411.50 585.20 362.70 74.20 

1950 27.20 23.80 51.90 1,537.00 2,617.00 1,030.00 820.10 133.60 50.80 

1951 64.50 62.10 107.00 1,190.00 714.40 301.10 102.50 60.70 122.50 

1952 12.40 10.80 14.80 390.70 125.20 90.30 201.90 54.30 3.80 

1953 0.17 0.13 52.10 46.50 38.50 100.50 119.30 6.61 1.64 

1954 0.21 0.05 6.64 135.40 60.20 22.40 2.21 0.11 0.00 

1955 0.00 0.00 0.48 69.50 9.39 14.90 17.60 11.20 0.00 

1956 0.00 0.00 0.01 317.20 37.50 23.60 1.02 0.04 0.09 

1957 0.00 0.00 40.50 35.50 10.30 41.60 17.20 0.91 5.17 

1958 0.00 0.34 1.33 4.13 1.35 3.00 15.50 0.26 0.00 

1959 0.00 0.01 18.30 19.90 6.75 4.96 1.27 0.00 0.00 

1960 0.00 0.00 23.70 108.90 10.60 12.60 8.27 0.28 3.47 

1961 0.00 0.00 35.60 12.90 25.00 3.03 0.00 0.00 0.01 

1962 0.00 0.00 0.26 97.90 198.50 347.10 264.30 8.75 1.50 

1963 0.16 0.00 20.60 33.70 11.60 32.70 0.45 0.00 0.00 

1964 0.00 0.00 0.00 103.40 23.20 18.60 3.26 0.06 0.17 

1965 0.00 0.00 0.00 573.30 25.90 29.70 21.00 3.63 3.76 

Year January February March April May June July August September 
Gaged (March 1944 through September 1983 and April 1985 through October 2001; incomplete winter data for November 1989 through 

estimated (January 1931 through February 1944, October 1983 through March 1985, and missing winter data for November 1989 thro

historic streamflow, in cubic feet per second, for the Marsh River near Shelly, Minn.—Continued

1966 0.15 0.07 389.40 291.50 50.40 9.99 2.38 1.70 2.32 

1967 0.00 0.00 60.10 143.60 30.10 9.92 1.17 0.00 0.00 

1968 0.00 0.00 19.90 11.80 5.42 15.70 1.06 0.00 0.00 

1969 0.00 0.00 0.00 608.50 31.40 24.70 42.80 3.19 2.34 

1970 0.18 0.17 1.47 350.40 58.00 137.60 2.33 0.05 0.14 

1971 0.00 0.00 46.70 100.70 5.39 2.76 0.46 0.00 0.00 

1972 0.50 0.00 317.90 321.30 52.90 4.71 5.26 2.43 0.59 

1973 0.10 0.08 84.10 10.30 4.21 0.74 0.00 0.00 25.60 

1974 0.29 0.17 0.17 775.20 149.90 20.70 1.25 3.88 0.08 

1975 0.24 0.12 0.13 552.80 86.00 17.00 230.10 0.89 0.01 

1976 0.00 0.00 68.10 71.00 2.44 4.06 0.01 0.00 0.00 

1977 0.00 0.00 2.79 10.20 1.36 0.57 0.00 0.00 0.00 

1978 0.02 0.02 15.50 676.30 9.95 1.00 0.02 0.00 0.00 

1979 0.00 0.00 0.00 894.80 43.70 13.40 53.40 1.43 0.09 

1980 0.02 0.00 6.75 105.90 0.87 0.00 0.00 0.03 0.00 

1981 0.00 1.36 1.30 0.08 47.70 3.92 1.18 0.20 4.64 

1982 0.10 0.23 70.80 337.30 24.80 2.86 1.18 0.12 0.00 

1983 1.33 0.79 342.40 68.80 4.34 247.10 55.70 20.50 18.50 

1984 0.56 2.73 235.07 140.72 9.50 29.28 2.21 0.11 0.07 

1985 0.45 0.28 195.82 14.30 297.60 11.20 9.13 8.14 3.83 

1986 0.45 0.40 164.20 321.90 135.50 19.30 18.40 4.19 0.55 

1987 0.34 0.27 206.20 20.90 33.20 5.92 259.60 12.60 1.44 

1988 0.20 0.16 81.90 49.70 1.56 0.10 0.00 2.92 5.68 

1989 0.00 0.00 0.48 608.60 12.50 4.60 0.08 0.00 0.00 

1990 0.27 0.37 0.66 28.10 3.57 30.70 5.15 0.00 0.00 

1991 0.14 0.24 9.20 4.93 72.00 27.40 2.84 0.13 0.00 

1992 0.65 1.02 63.70 6.35 2.73 17.40 28.70 20.60 21.90 

1993 0.43 0.49 79.09 133.00 5.23 4.69 100.20 36.90 0.48 

1994 2.06 1.80 340.97 109.80 32.30 92.90 124.60 1.83 91.90 

1995 1.50 1.67 407.90 77.30 83.50 11.80 167.70 4.39 0.85 

1996 1.01 0.85 34.17 644.20 223.50 11.40 2.83 0.18 0.02 

1997 0.93 0.80 13.40 1,309.00 81.10 295.50 250.00 2.68 1.33 

1998 5.56 69.54 134.00 71.40 288.60 180.10 46.90 0.51 0.48 

1999 4.01 6.41 588.15 188.20 95.20 9.63 40.80 2.51 51.30 

2000 3.57 8.02 8.35 25.60 7.42 288.00 52.80 3.35 0.70 

2001 7.53 5.96 188.25 688.00 27.80 9.99 0.93 11.30 2.47 

Year January February March April May June July August September 
Gaged (April 1943 through September 1984 and June 1985 through December 2001; incomplete winter data for December 1944 throug

estimated (January 1931 through March 1943, October 1984 through May 1985, and missing winter data for December 1944 throug

historic streamflow, in cubic feet per second, for the Sand Hill River at Climax, Minn.

1931 3.54 9.18 34.54 58.41 19.48 14.01 9.61 7.16 7.88 

1932 5.70 6.30 27.68 50.84 61.15 16.74 3.93 9.33 8.46 

1933 2.37 2.48 44.61 49.06 24.94 12.96 5.20 4.26 4.54 

1934 5.81 8.16 19.88 59.74 11.04 8.42 2.49 0.95 19.48 

1935 4.81 8.16 59.73 29.40 24.68 22.26 20.95 38.22 8.55 

1936 4.23 0.59 32.78 308.03 41.69 9.71 1.42 4.62 4.74 

1937 3.11 2.80 1.87 57.53 44.57 24.19 7.90 9.50 16.96 

1938 2.22 3.05 51.55 18.35 112.11 42.27 9.45 12.39 4.24 

1939 3.00 2.35 100.30 126.95 12.59 10.32 4.57 1.13 1.13 

1940 2.06 0.45 1.44 104.62 26.35 9.91 3.71 6.32 3.44 

1941 4.96 5.42 31.18 171.86 41.97 31.13 6.95 14.39 18.75 

1942 5.81 0.90 15.51 34.03 135.97 97.14 18.81 22.38 19.33 

1943 5.65 4.49 37.08 307.40 117.50 234.50 66.20 33.40 19.50 

1944 4.53 5.37 12.66 63.80 58.70 58.30 97.70 125.30 72.60 

1945 11.67 8.64 181.00 294.90 145.00 97.20 41.70 30.50 45.40 

1946 6.96 5.25 145.30 225.20 74.60 42.40 32.30 12.90 18.70 

1947 12.70 13.00 24.00 686.80 191.90 368.60 65.40 30.30 19.40 

1948 8.74 6.45 5.81 511.00 75.90 34.70 33.80 22.30 12.70 

1949 9.08 8.95 14.50 171.90 60.40 196.60 69.20 28.90 12.90 

1950 11.00 7.00 9.90 818.50 1,156.00 115.40 181.30 43.10 18.40 

1951 14.00 12.00 10.80 428.70 131.50 44.60 20.30 18.40 25.60 

1952 12.00 11.00 15.00 221.90 46.80 21.50 52.90 18.60 14.60 

1953 7.90 10.80 68.40 99.20 65.90 80.30 49.70 28.60 16.30 

1954 5.29 6.44 20.10 144.10 57.00 81.60 29.30 10.90 7.99 

1955 6.81 7.36 7.42 150.20 31.50 34.40 15.60 12.40 6.49 

1956 5.23 5.41 7.42 316.70 105.30 60.10 16.00 11.50 11.50 

1957 8.52 7.54 48.60 120.30 41.10 118.60 130.50 23.60 52.00 

1958 13.90 12.40 22.20 30.70 23.70 25.60 62.90 17.90 11.30 

1959 4.81 3.84 36.90 78.60 68.20 27.50 16.50 14.30 7.89 

1960 12.00 9.78 16.30 162.10 39.30 47.00 41.60 16.10 14.50 

1961 6.71 7.28 64.30 52.80 41.70 13.30 10.20 6.30 9.83 

1962 2.02 3.55 6.21 253.70 232.50 292.60 298.00 60.10 46.80 

1963 9.25 4.94 37.40 94.40 47.20 57.50 33.40 12.10 10.60 

1964 6.60 9.59 11.80 226.20 88.80 48.30 68.10 17.60 34.50 

1965 10.80 8.34 10.60 916.70 135.50 126.00 54.90 25.40 30.70 

Year January February March April May June July August September 
Gaged (April 1943 through September 1984 and June 1985 through December 2001; incomplete winter data for December 1944 throug

estimated (January 1931 through March 1943, October 1984 through May 1985, and missing winter data for December 1944 throug

historic streamflow, in cubic feet per second, for the Sand Hill River at Climax, Minn.—Continued

1966 18.10 16.20 384.60 934.60 191.70 67.70 25.20 27.70 21.90 

1967 12.50 14.30 90.00 340.90 102.40 73.00 26.50 12.70 12.10 

1968 10.20 7.96 100.80 67.90 37.60 269.30 48.50 15.00 12.20 

1969 4.70 5.64 7.50 669.00 129.70 103.20 50.00 20.40 24.80 

1970 13.00 11.10 12.70 751.30 241.20 165.30 37.50 16.80 13.30 

1971 11.60 12.50 43.30 345.10 61.30 36.50 17.30 10.50 33.20 

1972 25.80 19.10 318.50 716.60 169.50 49.20 29.00 33.40 17.40 

1973 11.00 12.20 228.10 51.10 37.50 22.50 12.20 12.60 80.30 

1974 18.70 18.00 19.00 711.50 300.40 87.50 19.40 24.60 18.60 

1975 11.90 13.70 23.50 756.10 220.80 48.90 182.30 35.30 18.60 

1976 15.90 15.10 83.80 316.80 41.30 33.30 19.50 10.70 7.34 

1977 7.86 8.18 18.90 51.60 32.60 40.60 10.90 6.96 15.40 

1978 18.30 13.20 37.20 946.00 63.40 53.50 21.60 15.30 17.20 

1979 12.10 12.90 17.20 868.90 160.50 71.10 166.00 45.20 17.80 

1980 19.20 21.30 42.90 280.00 33.50 11.50 8.95 10.20 11.10 

1981 8.05 12.20 32.80 25.30 50.70 38.80 24.30 17.10 34.50 

1982 12.10 10.20 49.90 347.50 144.40 35.70 42.40 12.70 10.20 

1983 19.20 19.00 333.90 181.40 54.70 228.10 113.20 49.40 72.00 

1984 26.80 46.80 201.50 336.80 55.50 595.80 44.60 17.00 11.80 

1985 14.13 11.17 154.38 76.50 313.34 168.30 181.30 256.20 93.90 

1986 30.10 22.90 217.40 579.40 269.10 69.50 82.90 26.80 21.20 

1987 17.20 16.10 185.20 80.10 110.10 60.10 138.30 104.20 27.80 

1988 20.30 16.40 126.40 209.10 37.10 36.40 13.80 9.88 14.00 

1989 13.80 11.20 14.20 776.60 79.70 40.80 28.40 12.20 14.40 

1990 8.58 11.30 59.70 88.60 39.30 58.90 16.80 8.05 7.73 

1991 6.27 10.90 51.00 48.90 97.10 30.80 31.20 9.78 10.10 

1992 10.50 14.10 80.20 53.90 36.30 20.40 28.30 53.30 84.90 

1993 14.20 12.10 39.40 338.50 46.20 50.80 224.90 426.10 41.20 

1994 17.40 14.00 52.50 221.70 105.30 175.00 375.50 63.70 123.60 

1995 23.20 22.00 455.30 229.40 156.80 40.80 326.80 45.00 27.30 

1996 31.50 28.70 31.10 1,167.00 370.80 90.60 33.30 20.00 17.70 

1997 24.00 21.90 24.20 1,568.00 176.20 185.90 478.00 62.20 40.40 

1998 32.00 182.90 421.50 153.70 449.50 278.20 225.30 44.90 23.20 

1999 30.00 35.10 610.40 962.70 376.10 160.20 104.80 134.00 373.60 

2000 33.60 36.80 93.30 107.00 74.00 255.00 187.00 47.10 33.10 

2001 36.80 33.20 61.70 816.00 159.00 86.00 39.00 42.40 46.20 

Year January February March April May June July August September 
Gaged (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Red Lake River at Crook

1931 118.10 148.80 263.50 361.70 231.20 225.00 77.60 30.50 21.10 

1932 52.90 56.50 219.50 1,297.00 317.80 81.00 37.20 19.10 12.80 

1933 23.00 29.40 108.20 609.00 162.50 122.70 36.70 15.40 13.30 

1934 15.60 18.50 130.80 501.20 153.60 80.40 44.20 12.30 8.87 

1935 16.10 21.20 341.30 519.90 283.60 159.00 90.30 32.10 56.70 

1936 31.80 25.00 24.90 1,366.00 470.20 91.30 26.20 13.20 10.40 

1937 19.80 17.80 26.20 403.70 716.20 382.50 704.20 1,161.00 577.60 

1938 59.00 80.70 619.60 293.20 3,328.00 1,041.00 347.70 108.80 142.30 

1939 157.10 142.00 200.60 659.70 413.00 310.00 180.40 92.90 235.60 

1940 156.90 173.80 186.00 2,016.00 1,005.00 481.80 216.50 149.60 143.10 

1941 209.40 211.80 196.90 2,647.00 738.30 2,536.00 506.70 305.20 892.00 

1942 448.10 477.90 1,561.00 2,911.00 2,829.00 816.40 287.30 341.50 1,276.00 

1943 363.20 337.90 529.00 3,966.00 2,270.00 3,449.00 1,416.00 930.70 951.50 

1944 413.50 448.60 493.90 1,329.00 1,229.00 2,283.00 1,484.00 1,907.00 1,533.00 

1945 709.70 700.00 3,406.00 5,202.00 2,901.00 1,392.00 860.80 572.80 969.20 

1946 569.40 542.10 3,620.00 3,867.00 1,745.00 1,013.00 764.10 350.30 464.50 

1947 496.50 454.30 634.50 4,262.00 3,308.00 5,572.00 2,472.00 941.20 1,133.00 

1948 912.90 637.90 675.80 6,552.00 3,409.00 1,071.00 954.70 659.30 566.90 

1949 351.60 353.60 476.40 2,587.00 1,256.00 2,931.00 1,214.00 1,978.00 1,260.00 

1950 664.50 655.40 793.50 5,760.00 15,290.00 4,702.00 3,602.00 1,670.00 1,872.00 

1951 1,663.00 1,464.00 1,631.00 5,573.00 4,265.00 1,947.00 1,216.00 522.80 729.30 

1952 1,140.00 1,210.00 1,178.00 3,236.00 1,942.00 1,707.00 2,326.00 858.80 599.60 

1953 367.40 375.70 841.00 890.20 1,033.00 1,252.00 1,037.00 452.40 392.80 

1954 293.70 302.80 412.50 1,860.00 1,305.00 1,209.00 673.80 433.80 358.50 

1955 321.60 337.40 365.50 2,593.00 706.60 1,118.00 487.00 270.60 258.50 

1956 226.10 230.70 230.10 3,408.00 2,489.00 847.60 874.50 301.20 1,292.00 

1957 231.10 118.40 669.30 2,510.00 1,272.00 2,797.00 3,333.00 1,375.00 2,188.00 

1958 827.00 776.00 1,001.00 981.00 485.30 603.60 1,532.00 364.20 103.80 

1959 73.90 83.80 298.40 1,519.00 685.50 481.10 317.80 182.60 128.90 

1960 184.60 176.60 191.00 2,280.00 755.90 942.70 420.70 70.50 85.10 

1961 64.50 68.30 405.50 661.40 569.60 92.90 89.70 52.70 184.80 

1962 79.00 82.00 103.00 2,849.00 4,720.00 7,205.00 3,796.00 1,905.00 1,733.00 

1963 983.20 882.10 1,263.00 3,192.00 2,074.00 2,221.00 1,245.00 652.10 799.20 

1964 544.20 513.10 361.60 1,842.00 1,307.00 2,505.00 1,157.00 754.50 464.50 

1965 622.30 634.60 635.50 7,321.00 3,820.00 3,866.00 1,813.00 795.10 1,140.00 

Year January February March April May June July August September 
Gaged (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Red Lake River at Crookston, M

1966 1,086.00 1,040.00 1,685.00 10,260.00 5,254.00 2,398.00 1,389.00 1,755.00 1,488.00 

1967 1,053.00 1,079.00 1,459.00 6,833.00 4,750.00 2,519.00 1,324.00 837.90 833.70 

1968 312.60 260.50 1,212.00 841.30 399.10 2,151.00 3,616.00 1,857.00 1,316.00 

1969 1,245.00 1,240.00 1,220.00 7,840.00 3,651.00 2,024.00 1,180.00 938.30 1,228.00 

1970 1,114.00 1,036.00 1,039.00 5,595.00 3,890.00 4,061.00 1,535.00 813.30 965.40 

1971 772.40 860.50 983.20 2,995.00 1,428.00 1,170.00 792.30 656.70 563.10 

1972 902.40 921.70 2,290.00 5,409.00 2,976.00 1,601.00 939.10 1,177.00 1,278.00 

1973 603.70 606.80 1,695.00 554.70 615.90 407.40 244.10 496.00 2,191.00 

1974 928.40 1,008.00 1,003.00 6,856.00 5,755.00 2,755.00 1,621.00 2,024.00 1,456.00 

1975 994.20 906.80 934.20 6,064.00 4,697.00 2,509.00 6,851.00 1,788.00 1,747.00 

1976 1,337.00 1,238.00 1,602.00 3,409.00 1,340.00 1,149.00 915.50 990.60 669.30 

1977 176.60 181.00 276.60 429.10 366.00 224.60 384.10 191.30 450.90 

1978 623.90 622.10 693.20 7,509.00 1,798.00 1,289.00 1,360.00 832.40 610.30 

1979 490.00 506.20 556.60 7,678.00 4,489.00 2,613.00 2,322.00 1,571.00 1,166.00 

1980 1,085.00 1,038.00 1,070.00 2,658.00 808.70 642.70 384.90 415.10 381.30 

1981 125.80 150.20 237.30 231.80 236.80 887.50 1,349.00 873.10 1,356.00 

1982 982.60 914.30 992.90 4,540.00 3,456.00 1,712.00 2,007.00 1,355.00 992.30 

1983 1,087.00 956.80 2,576.00 2,384.00 1,510.00 2,613.00 1,973.00 1,778.00 1,476.00 

1984 967.10 1,039.00 1,787.00 2,463.00 1,166.00 3,498.00 1,346.00 821.70 572.00 

1985 1,002.00 941.40 2,117.00 1,900.00 2,728.00 2,942.00 3,013.00 3,868.00 2,697.00 

1986 992.90 953.90 2,345.00 5,623.00 4,336.00 1,777.00 1,301.00 1,085.00 1,181.00 

1987 721.00 694.60 1,919.00 880.30 1,305.00 728.50 837.50 671.80 441.30 

1988 160.00 160.00 506.70 1,416.00 235.40 187.70 147.90 168.10 193.20 

1989 181.30 152.30 152.70 3,546.00 876.80 537.50 337.40 167.10 156.10 

1990 96.00 103.30 248.90 415.50 221.30 448.90 179.80 138.60 82.90 

1991 94.30 91.80 184.50 236.70 353.70 251.90 635.50 217.60 446.70 

1992 145.80 145.70 1,002.00 1,381.00 919.20 242.60 521.70 559.20 1,253.00 

1993 579.90 593.40 896.90 2,638.00 988.70 1,479.00 2,453.00 2,836.00 2,414.00 

1994 661.50 600.20 1,298.00 1,141.00 1,234.00 1,815.00 4,375.00 1,168.00 1,325.00 

1995 885.20 872.50 4,257.00 2,636.00 2,242.00 854.90 1,786.00 1,063.00 943.80 

1996 1,040.00 1,130.00 1,234.00 8,295.00 7,059.00 3,066.00 2,167.00 1,614.00 1,056.00 

1997 1,154.00 1,029.00 1,132.00 11,870.00 3,850.00 3,263.00 5,416.00 1,554.00 1,344.00 

1998 953.90 1,778.00 2,831.00 1,905.00 3,486.00 2,977.00 2,747.00 1,159.00 993.30 

1999 719.40 675.00 2,217.00 8,001.00 5,473.00 3,394.00 2,311.00 2,363.00 5,408.00 

2000 1,061.00 1,034.00 2,190.00 2,114.00 1,439.00 2,457.00 2,172.00 913.00 835.00 

2001 1,007.00 947.00 1,049.00 7,352.00 3,576.00 2,849.00 1,741.00 3,241.00 1,462.00 

Year January February March April May June July August September 
Gaged (October 1992 through December 2001) historic streamflow, in cubic feet per second, for the Turtle River at Turtle River State Par

1931 -- -- -- -- -- -- -- -- -- 

1932 -- -- -- -- -- -- -- -- -- 

1933 -- -- -- -- -- -- -- -- -- 

1934 -- -- -- -- -- -- -- -- -- 

1935 -- -- -- -- -- -- -- -- -- 

1936 -- -- -- -- -- -- -- -- -- 

1937 -- -- -- -- -- -- -- -- -- 

1938 -- -- -- -- -- -- -- -- -- 

1939 -- -- -- -- -- -- -- -- -- 

1940 -- -- -- -- -- -- -- -- -- 

1941 -- -- -- -- -- -- -- -- -- 

1942 -- -- -- -- -- -- -- -- -- 

1943 -- -- -- -- -- -- -- -- -- 

1944 -- -- -- -- -- -- -- -- -- 

1945 -- -- -- -- -- -- -- -- -- 

1946 -- -- -- -- -- -- -- -- -- 

1947 -- -- -- -- -- -- -- -- -- 

1948 -- -- -- -- -- -- -- -- -- 

1949 -- -- -- -- -- -- -- -- -- 

1950 -- -- -- -- -- -- -- -- -- 

1951 -- -- -- -- -- -- -- -- -- 

1952 -- -- -- -- -- -- -- -- -- 

1953 -- -- -- -- -- -- -- -- -- 

1954 -- -- -- -- -- -- -- -- -- 

1955 -- -- -- -- -- -- -- -- -- 

1956 -- -- -- -- -- -- -- -- -- 

1957 -- -- -- -- -- -- -- -- -- 

1958 -- -- -- -- -- -- -- -- -- 

1959 -- -- -- -- -- -- -- -- -- 

1960 -- -- -- -- -- -- -- -- -- 

1961 -- -- -- -- -- -- -- -- -- 

1962 -- -- -- -- -- -- -- -- -- 

1963 -- -- -- -- -- -- -- -- -- 

1964 -- -- -- -- -- -- -- -- -- 

1965 -- -- -- -- -- -- -- -- -- 

Year January February March April May June July August September 
Gaged (October 1992 through December 2001) historic streamflow, in cubic feet per second, for the Turtle River at Turtle River State Park near 

1966 -- -- -- -- -- -- -- -- -- 

1967 -- -- -- -- -- -- -- -- -- 

1968 -- -- -- -- -- -- -- -- -- 

1969 -- -- -- -- -- -- -- -- -- 

1970 -- -- -- -- -- -- -- -- -- 

1971 -- -- -- -- -- -- -- -- -- 

1972 -- -- -- -- -- -- -- -- -- 

1973 -- -- -- -- -- -- -- -- -- 

1974 -- -- -- -- -- -- -- -- -- 

1975 -- -- -- -- -- -- -- -- -- 

1976 -- -- -- -- -- -- -- -- -- 

1977 -- -- -- -- -- -- -- -- -- 

1978 -- -- -- -- -- -- -- -- -- 

1979 -- -- -- -- -- -- -- -- -- 

1980 -- -- -- -- -- -- -- -- -- 

1981 -- -- -- -- -- -- -- -- -- 

1982 -- -- -- -- -- -- -- -- -- 

1983 -- -- -- -- -- -- -- -- -- 

1984 -- -- -- -- -- -- -- -- -- 

1985 -- -- -- -- -- -- -- -- -- 

1986 -- -- -- -- -- -- -- -- -- 

1987 -- -- -- -- -- -- -- -- -- 

1988 -- -- -- -- -- -- -- -- -- 

1989 -- -- -- -- -- -- -- -- -- 

1990 -- -- -- -- -- -- -- -- -- 

1991 -- -- -- -- -- -- -- -- -- 

1992 -- -- -- -- -- -- -- -- -- 

1993 3.97 4.59 42.50 58.90 12.50 13.80 91.70 84.40 74.70 

1994 8.65 10.20 186.80 103.00 29.70 37.90 29.00 14.90 52.30 

1995 13.10 10.30 250.00 182.40 78.80 23.60 34.40 16.30 10.10 

1996 10.70 9.65 11.50 343.70 75.80 31.80 31.90 10.20 5.72 

1997 7.69 11.40 59.30 524.90 92.60 18.10 168.20 33.10 14.10 

1998 8.05 32.30 125.00 96.50 20.40 17.00 25.30 5.47 2.80 

1999 9.64 10.70 139.90 215.40 192.10 63.30 46.50 66.10 27.10 

2000 9.06 8.10 16.80 18.30 16.90 923.00 81.50 18.80 15.60 

2001 13.50 13.00 77.90 174.00 49.00 18.30 12.80 13.70 8.71 

Year January February March April May June July August September 
Gaged (October 1945 through September 1970) and estimated (January 1931 through September 1945 and October 1970 

December 2001) historic streamflow, in cubic feet per second, for the Turtle River at Manvel, N. Dak.

1931 0.78 0.78 5.89 30.27 5.36 6.77 2.85 2.26 0.41 

1932 0.26 17.84 196.34 185.11 26.15 14.59 2.44 0.91 0.48 

1933 0.00 0.00 51.01 94.32 17.63 8.65 3.54 1.76 3.68 

1934 0.52 0.42 25.19 36.06 3.49 4.98 2.81 2.38 2.90 

1935 0.26 0.38 56.40 35.06 20.40 56.60 11.42 1.91 0.49 

1936 0.26 0.26 1.14 153.55 15.61 5.01 1.75 1.41 0.14 

1937 0.14 0.26 0.60 19.13 9.55 12.09 4.26 4.19 2.15 

1938 0.14 0.14 29.91 9.38 7.35 3.02 0.17 0.01 0.00 

1939 0.00 0.00 77.54 39.98 2.18 11.53 0.66 0.00 0.00 

1940 0.00 0.00 0.00 130.40 11.06 3.45 1.75 4.81 0.02 

1941 0.00 0.00 21.50 351.31 15.52 44.62 8.14 2.19 2.67 

1942 0.10 0.12 8.79 196.79 60.75 27.80 7.48 4.07 2.85 

1943 0.54 0.40 158.09 106.21 30.42 59.08 16.37 2.99 0.55 

1944 0.23 0.16 2.17 63.45 17.72 21.07 7.23 17.11 11.76 

1945 0.78 0.76 77.18 42.61 19.03 18.10 7.43 2.23 1.23 

1946 0.10 0.10 140.50 35.40 7.87 5.08 48.00 0.29 5.72 

1947 0.19 0.10 73.30 193.10 20.60 58.80 8.29 8.59 1.52 

1948 0.12 0.10 0.10 1,164.00 68.40 88.20 21.10 10.00 2.19 

1949 0.13 0.10 0.10 384.60 28.70 34.00 8.40 3.05 0.41 

1950 0.10 0.00 0.00 1,987.00 1,456.00 48.90 42.30 8.92 19.60 

1951 5.10 2.00 41.20 211.00 24.10 14.10 3.95 12.00 41.50 

1952 0.74 0.10 1.79 167.10 14.80 7.00 41.00 3.70 0.70 

1953 1.15 0.80 18.10 27.20 26.30 89.70 42.50 4.07 1.04 

1954 0.28 1.22 26.60 45.30 16.50 20.40 11.30 2.06 1.56 

1955 1.08 0.67 0.05 225.00 18.90 110.10 10.50 3.63 0.69 

1956 0.35 0.47 0.67 323.10 62.60 42.80 7.00 2.16 4.50 

1957 2.89 0.64 45.20 40.60 16.20 13.90 1.64 7.06 215.30 

1958 2.26 4.21 12.20 23.20 14.20 13.90 19.60 1.09 0.31 

1959 0.02 0.00 38.40 59.50 16.50 11.20 7.82 2.89 0.18 

1960 2.43 1.83 37.30 429.50 24.40 17.70 7.10 2.02 1.22 

1961 0.79 0.55 36.00 25.90 14.60 3.43 1.15 0.66 1.17 

1962 0.00 0.00 0.00 359.30 133.10 169.80 20.60 3.47 4.68 

1963 0.48 0.00 21.50 46.00 13.90 12.50 10.10 3.24 0.65 

1964 0.00 0.00 0.07 148.30 20.10 269.10 20.80 7.61 14.10 

1965 1.19 1.48 2.09 557.70 85.90 72.80 19.40 6.49 32.70 

Year January February March April May June July August September 
Gaged (October 1945 through September 1970) and estimated (January 1931 through September 1945 and October 1970 

December 2001) historic streamflow, in cubic feet per second, for the Turtle River at Manvel, N. Dak.—Continued

1966 4.84 1.66 479.20 395.10 148.10 34.70 45.50 22.10 8.06 

1967 4.03 4.84 96.40 535.30 191.00 32.10 6.61 2.25 0.83 

1968 1.95 1.73 100.80 50.20 20.20 54.10 57.90 13.20 13.50 

1969 1.78 0.18 0.08 631.70 31.60 37.90 16.00 4.27 10.90 

1970 4.24 0.84 1.91 622.50 157.60 56.80 15.00 12.90 10.80 

1971 3.66 4.96 62.95 335.77 51.46 48.65 31.48 5.92 4.13 

1972 7.15 4.93 293.47 485.52 139.19 61.61 11.00 6.00 2.85 

1973 3.76 5.88 198.46 51.16 19.27 14.26 5.45 2.69 4.45 

1974 1.48 3.18 2.58 640.47 161.14 96.77 23.19 7.02 5.96 

1975 6.72 6.07 23.27 565.99 142.48 58.17 30.41 3.56 2.37 

1976 3.94 5.04 171.75 179.63 22.82 9.12 2.67 4.45 1.77 

1977 0.38 0.37 2.41 21.37 11.69 7.67 5.95 1.36 2.11 

1978 4.12 2.21 216.60 587.26 59.17 29.83 10.16 2.25 5.40 

1979 1.85 2.20 3.26 1,455.64 218.40 49.78 25.58 9.69 3.33 

1980 5.01 4.75 45.42 170.07 11.73 4.86 1.48 2.41 2.40 

1981 2.31 4.86 9.34 9.50 9.54 16.03 8.64 6.70 2.89 

1982 5.20 4.25 64.19 512.87 50.73 19.57 15.07 2.53 0.51 

1983 8.53 7.69 291.55 180.15 46.25 75.59 31.70 14.33 37.05 

1984 8.06 6.86 281.68 285.14 61.85 69.27 5.92 4.27 0.47 

1985 0.96 2.54 243.78 71.46 35.56 15.48 1.76 4.28 0.94 

1986 5.98 5.28 274.03 202.23 130.91 33.96 26.43 6.35 4.94 

1987 11.76 6.63 602.71 628.03 96.83 64.06 118.80 3.42 41.40 

1988 11.50 12.77 246.76 191.58 33.37 15.32 6.25 1.64 0.64 

1989 4.61 4.22 6.32 498.63 42.82 20.79 5.00 2.25 1.59 

1990 0.97 1.36 2.71 27.34 12.41 11.19 12.50 4.53 0.02 

1991 0.35 3.07 6.98 27.25 60.22 37.39 9.50 5.03 3.92 

1992 0.46 0.27 198.13 32.68 14.04 13.00 44.35 9.18 16.36 

1993 6.51 7.52 72.12 99.95 22.61 24.96 165.88 152.67 135.13 

1994 14.18 16.72 316.98 174.78 53.72 68.56 52.46 26.95 94.61 

1995 21.47 16.88 424.22 309.51 142.54 42.69 62.23 29.49 18.27 

1996 17.53 15.81 19.51 583.22 137.11 57.52 57.70 18.45 10.35 

1997 12.60 18.68 100.63 890.70 167.50 32.74 304.26 59.87 25.51 

1998 13.19 52.93 212.11 163.75 36.90 30.75 45.77 9.89 5.07 

1999 15.80 17.53 237.40 365.51 347.49 114.50 84.11 119.57 49.02 

2000 14.85 13.27 28.51 31.05 30.57 1,669.62 147.43 34.01 28.22 

2001 22.12 21.30 132.19 295.26 88.64 33.10 23.15 24.78 15.76 

Year January February March April May June July August September 
Gaged (April through October 1932, March through June 1933, April through September 1934, April through June 1935, and October 1935 

historic streamflow, in cubic feet per second, for the Forest River near Minto, N. Dak.

1931 -- -- -- -- -- -- -- -- -- 

1932 -- -- -- 91.20 29.30 11.30 5.06 0.39 0.16 

1933 -- -- 49.60 154.00 24.00 10.70 -- -- -- 

1934 -- -- -- 39.40 10.60 5.02 0.87 0.00 0.00 

1935 -- -- -- 40.30 14.40 8.72 -- -- -- 

1936 0.00 0.00 0.00 107.00 17.90 8.33 1.40 0.00 0.00 

1937 0.00 0.00 0.00 14.20 10.20 6.44 0.51 0.11 0.00 

1938 0.00 0.00 24.10 11.00 9.06 2.41 1.40 0.00 0.00 

1939 0.00 0.00 20.60 38.00 6.93 1.61 13.10 0.00 0.00 

1940 0.00 0.00 0.00 41.70 11.20 3.11 0.00 13.20 0.22 

1941 0.00 0.00 0.00 349.00 21.70 22.10 7.49 3.54 9.09 

1942 0.32 0.00 127.00 355.00 38.90 14.50 7.36 15.20 4.69 

1943 1.27 1.11 143.00 98.60 23.60 192.00 182.00 20.30 9.60 

1944 0.69 0.03 0.25 92.50 22.00 25.60 9.50 3.53 6.88 

1945 -- -- -- -- -- -- -- -- -- 

1946 -- -- -- -- -- -- -- -- -- 

1947 -- -- -- -- -- -- -- -- -- 

1948 -- -- -- -- -- -- -- -- -- 

1949 -- -- -- -- -- -- -- -- -- 

1950 -- -- -- -- -- -- -- -- -- 

1951 -- -- -- -- -- -- -- -- -- 

1952 -- -- -- -- -- -- -- -- -- 

1953 -- -- -- -- -- -- -- -- -- 

1954 -- -- -- -- -- -- -- -- -- 

1955 -- -- -- -- -- -- -- -- -- 

1956 -- -- -- -- -- -- -- -- -- 

1957 -- -- -- -- -- -- -- -- -- 

1958 -- -- -- -- -- -- -- -- -- 

1959 -- -- -- -- -- -- -- -- -- 

1960 -- -- -- -- -- -- -- -- -- 

1961 -- -- -- -- -- -- -- -- -- 

1962 -- -- -- -- -- -- -- -- -- 

1963 -- -- -- -- -- -- -- -- -- 

1964 -- -- -- -- -- -- -- -- -- 

1965 -- -- -- -- -- -- -- -- -- 

Year January February March April May June July August September 
Gaged (April through October 1932, March through June 1933, April through September 1934, April through June 1935, and October 1935 

historic streamflow, in cubic feet per second, for the Forest River near Minto, N. Dak.—Continued

1966 -- -- -- -- -- -- -- -- -- 

1967 -- -- -- -- -- -- -- -- -- 

1968 -- -- -- -- -- -- -- -- -- 

1969 -- -- -- -- -- -- -- -- -- 

1970 -- -- -- -- -- -- -- -- -- 

1971 -- -- -- -- -- -- -- -- -- 

1972 -- -- -- -- -- -- -- -- -- 

1973 -- -- -- -- -- -- -- -- -- 

1974 -- -- -- -- -- -- -- -- -- 

1975 -- -- -- -- -- -- -- -- -- 

1976 -- -- -- -- -- -- -- -- -- 

1977 -- -- -- -- -- -- -- -- -- 

1978 -- -- -- -- -- -- -- -- -- 

1979 -- -- -- -- -- -- -- -- -- 

1980 -- -- -- -- -- -- -- -- -- 

1981 -- -- -- -- -- -- -- -- -- 

1982 -- -- -- -- -- -- -- -- -- 

1983 -- -- -- -- -- -- -- -- -- 

1984 -- -- -- -- -- -- -- -- -- 

1985 -- -- -- -- -- -- -- -- -- 

1986 -- -- -- -- -- -- -- -- -- 

1987 -- -- -- -- -- -- -- -- -- 

1988 -- -- -- -- -- -- -- -- -- 

1989 -- -- -- -- -- -- -- -- -- 

1990 -- -- -- -- -- -- -- -- -- 

1991 -- -- -- -- -- -- -- -- -- 

1992 -- -- -- -- -- -- -- -- -- 

1993 -- -- -- -- -- -- -- -- -- 

1994 -- -- -- -- -- -- -- -- -- 

1995 -- -- -- -- -- -- -- -- -- 

1996 -- -- -- -- -- -- -- -- -- 

1997 -- -- -- -- -- -- -- -- -- 

1998 -- -- -- -- -- -- -- -- -- 

1999 -- -- -- -- -- -- -- -- -- 

2000 -- -- -- -- -- -- -- -- -- 

2001 -- -- -- -- -- -- -- -- -- 

Year January February March April May June July August September 
Gaged (April 1944 through December 2001) and estimated (January 1931 through March 1944) historic streamflow

in cubic feet per second, for the Forest River at Minto, N. Dak.

1931 1.94 1.65 8.65 30.04 18.09 8.55 6.01 2.01 0.89 

1932 0.11 6.59 25.25 113.85 37.57 14.49 6.49 0.50 0.21 

1933 0.00 0.00 61.92 192.24 30.77 13.72 4.19 2.05 3.42 

1934 1.43 0.56 25.25 49.18 13.59 6.44 1.12 0.00 0.00 

1935 0.16 0.47 69.78 50.31 18.46 11.18 8.76 3.37 2.00 

1936 0.00 0.00 0.00 133.57 22.95 10.68 1.80 0.00 0.00 

1937 0.00 0.00 0.00 17.73 13.08 8.26 0.65 0.14 0.00 

1938 0.00 0.00 30.08 13.73 11.62 3.09 1.80 0.00 0.00 

1939 0.00 0.00 25.72 47.44 8.89 2.06 16.80 0.00 0.00 

1940 0.00 0.00 0.00 52.05 14.36 3.99 0.00 16.93 0.28 

1941 0.00 0.00 0.00 435.66 27.82 28.34 9.60 4.54 11.66 

1942 0.39 0.00 158.54 443.15 49.88 18.59 9.44 19.49 6.01 

1943 1.56 1.37 178.51 123.08 30.26 246.19 233.37 26.03 12.31 

1944 0.85 0.04 0.31 115.47 28.21 32.83 12.18 4.53 8.82 

1945 2.55 1.64 89.60 47.30 20.10 15.20 5.59 2.90 0.99 

1946 0.50 0.20 154.90 42.20 10.60 8.90 5.36 0.00 2.98 

1947 0.50 0.02 90.00 96.70 17.20 15.50 19.60 5.37 3.65 

1948 3.45 0.76 0.18 1,189.00 106.30 40.50 18.70 9.51 4.74 

1949 1.14 0.50 0.59 482.50 37.50 17.40 11.20 3.30 0.65 

1950 0.70 0.70 0.80 1,573.00 1,515.00 54.10 28.30 8.05 8.93 

1951 3.65 4.50 31.20 198.70 27.40 15.50 6.48 9.32 8.42 

1952 1.10 0.69 3.57 96.00 16.40 7.57 29.10 5.35 3.01 

1953 0.57 0.08 2.98 21.90 16.50 51.40 10.10 2.14 0.27 

1954 0.28 0.23 24.70 39.80 18.30 43.80 10.00 11.10 6.43 

1955 1.31 0.51 0.03 291.10 22.10 92.40 11.20 2.85 1.69 

1956 0.53 0.48 0.58 511.30 87.90 208.80 26.70 11.00 14.00 

1957 4.47 1.53 47.10 25.80 20.40 14.90 6.45 7.78 56.60 

1958 2.62 0.84 6.00 24.90 16.30 40.90 12.80 3.80 2.07 

1959 0.27 0.10 10.80 107.20 18.40 11.00 5.71 2.15 0.44 

1960 1.87 0.99 20.60 605.90 30.70 15.20 4.63 1.90 0.94 

1961 0.64 0.00 23.40 24.40 11.60 5.18 5.64 0.51 0.00 

1962 0.19 0.00 0.00 398.40 63.20 266.50 20.20 11.80 8.21 

1963 0.95 0.00 42.20 34.50 18.90 22.70 26.50 3.73 0.80 

1964 0.15 0.09 0.26 138.70 28.00 266.60 50.50 12.10 10.40 

1965 3.79 2.77 2.84 481.50 63.00 71.90 23.40 11.50 16.00 

Year January February March April May June July August September 
Gaged (April 1944 through December 2001) and estimated (January 1931 through March 1944) historic streamflow

in cubic feet per second, for the Forest River at Minto, N. Dak.—Continued

1966 4.96 2.14 438.20 355.80 228.50 57.30 36.50 17.60 9.88 

1967 3.54 2.48 123.90 358.80 210.70 39.40 17.40 8.90 5.71 

1968 2.02 1.55 66.50 46.00 21.30 18.70 16.60 11.80 10.50 

1969 0.82 0.41 0.46 521.50 53.30 20.20 12.30 4.70 5.14 

1970 5.38 2.26 0.79 479.50 139.50 41.90 39.80 11.40 6.53 

1971 0.90 0.95 7.45 512.30 59.50 30.40 67.10 21.00 11.60 

1972 0.80 0.26 269.80 356.30 71.90 31.20 10.00 4.51 4.42 

1973 0.40 0.53 59.50 39.90 18.90 28.40 6.15 1.47 4.46 

1974 2.55 0.59 0.91 660.80 485.70 176.30 27.50 19.60 7.60 

1975 5.86 3.68 5.45 285.20 162.40 28.90 108.50 9.28 6.54 

1976 3.60 4.14 108.10 387.60 34.60 17.50 8.50 2.90 1.53 

1977 0.00 0.00 11.00 32.90 17.70 10.90 6.79 3.14 4.16 

1978 0.96 0.17 74.50 495.40 56.40 61.20 26.40 8.17 8.64 

1979 2.00 1.35 1.00 1,189.00 363.00 63.60 63.40 12.10 17.20 

1980 1.04 1.33 8.16 70.20 12.60 7.33 1.87 1.32 2.98 

1981 4.10 17.30 33.30 38.80 15.20 21.50 12.30 4.83 15.30 

1982 1.54 0.30 33.60 329.20 63.00 60.00 235.80 96.40 13.90 

1983 9.66 12.50 236.90 197.30 52.50 32.60 18.70 7.92 17.10 

1984 0.78 4.48 53.30 89.00 26.70 26.00 9.92 3.13 3.77 

1985 0.12 0.00 175.40 63.70 31.20 26.50 5.25 6.08 8.53 

1986 6.37 5.09 190.00 113.10 86.20 16.20 60.10 21.00 12.50 

1987 9.65 7.31 122.30 848.60 81.90 28.60 27.30 15.00 7.68 

1988 6.32 0.67 40.00 98.70 70.70 30.00 4.73 2.11 0.25 

1989 1.14 1.10 1.00 90.60 30.90 8.74 2.32 0.15 0.01 

1990 0.00 0.00 0.60 26.50 11.20 8.28 2.75 0.02 0.00 

1991 0.00 0.00 2.87 23.00 14.00 4.21 14.50 6.44 12.30 

1992 7.14 5.98 186.70 60.70 24.00 15.00 6.80 3.49 0.64 

1993 1.58 2.74 13.10 97.60 23.70 21.80 132.60 327.60 69.00 

1994 6.19 4.56 153.10 164.70 52.50 86.30 64.80 13.70 14.90 

1995 6.64 6.03 392.10 308.40 143.70 61.90 76.10 20.20 11.20 

1996 8.53 3.94 115.90 802.80 382.00 93.90 31.30 15.30 6.98 

1997 3.19 2.86 2.79 1,040.00 322.10 58.60 348.50 72.10 28.50 

1998 15.80 50.20 247.20 241.60 35.60 37.20 37.20 11.70 7.05 

1999 10.00 10.40 263.30 479.30 202.20 79.00 52.00 32.40 20.50 

2000 11.70 11.10 23.60 17.80 14.60 65.40 25.10 9.77 7.96 

2001 12.80 11.50 56.40 279.00 65.60 36.00 24.00 26.60 8.57 

Year January February March April May June July August September 
Gaged (April through September 1945 and October 1953 through September 1956) historic streamflow, in cubic feet per 

for the Snake River at Alvarado, Minn.

1931 -- -- -- -- -- -- -- -- -- 

1932 -- -- -- -- -- -- -- -- -- 

1933 -- -- -- -- -- -- -- -- -- 

1934 -- -- -- -- -- -- -- -- -- 

1935 -- -- -- -- -- -- -- -- -- 

1936 -- -- -- -- -- -- -- -- -- 

1937 -- -- -- -- -- -- -- -- -- 

1938 -- -- -- -- -- -- -- -- -- 

1939 -- -- -- -- -- -- -- -- -- 

1940 -- -- -- -- -- -- -- -- -- 

1941 -- -- -- -- -- -- -- -- -- 

1942 -- -- -- -- -- -- -- -- -- 

1943 -- -- -- -- -- -- -- -- -- 

1944 -- -- -- -- -- -- -- -- -- 

1945 -- -- -- 191.00 57.30 13.30 35.90 13.10 10.20 

1946 -- -- -- -- -- -- -- -- -- 

1947 -- -- -- -- -- -- -- -- -- 

1948 -- -- -- -- -- -- -- -- -- 

1949 -- -- -- -- -- -- -- -- -- 

1950 -- -- -- -- -- -- -- -- -- 

1951 -- -- -- -- -- -- -- -- -- 

1952 -- -- -- -- -- -- -- -- -- 

1953 -- -- -- -- -- -- -- -- -- 

1954 0.00 0.00 0.00 13.30 6.71 4.32 0.47 0.00 0.00 

1955 0.00 0.00 0.00 49.20 4.83 32.20 1.63 0.04 0.00 

1956 0.00 0.00 0.00 35.00 64.50 13.80 18.40 2.20 1.60 

1957 -- -- -- -- -- -- -- -- -- 

1958 -- -- -- -- -- -- -- -- -- 

1959 -- -- -- -- -- -- -- -- -- 

1960 -- -- -- -- -- -- -- -- -- 

1961 -- -- -- -- -- -- -- -- -- 

1962 -- -- -- -- -- -- -- -- -- 

1963 -- -- -- -- -- -- -- -- -- 

1964 -- -- -- -- -- -- -- -- -- 

1965 -- -- -- -- -- -- -- -- -- 

Year January February March April May June July August September 
Gaged (April through September 1945 and October 1953 through September 1956) historic streamflow, in cubic feet per 

for the Snake River at Alvarado, Minn.—Continued

1966 -- -- -- -- -- -- -- -- -- 

1967 -- -- -- -- -- -- -- -- -- 

1968 -- -- -- -- -- -- -- -- -- 

1969 -- -- -- -- -- -- -- -- -- 

1970 -- -- -- -- -- -- -- -- -- 

1971 -- -- -- -- -- -- -- -- -- 

1972 -- -- -- -- -- -- -- -- -- 

1973 -- -- -- -- -- -- -- -- -- 

1974 -- -- -- -- -- -- -- -- -- 

1975 -- -- -- -- -- -- -- -- -- 

1976 -- -- -- -- -- -- -- -- -- 

1977 -- -- -- -- -- -- -- -- -- 

1978 -- -- -- -- -- -- -- -- -- 

1979 -- -- -- -- -- -- -- -- -- 

1980 -- -- -- -- -- -- -- -- -- 

1981 -- -- -- -- -- -- -- -- -- 

1982 -- -- -- -- -- -- -- -- -- 

1983 -- -- -- -- -- -- -- -- -- 

1984 -- -- -- -- -- -- -- -- -- 

1985 -- -- -- -- -- -- -- -- -- 

1986 -- -- -- -- -- -- -- -- -- 

1987 -- -- -- -- -- -- -- -- -- 

1988 -- -- -- -- -- -- -- -- -- 

1989 -- -- -- -- -- -- -- -- -- 

1990 -- -- -- -- -- -- -- -- -- 

1991 -- -- -- -- -- -- -- -- -- 

1992 -- -- -- -- -- -- -- -- -- 

1993 -- -- -- -- -- -- -- -- -- 

1994 -- -- -- -- -- -- -- -- -- 

1995 -- -- -- -- -- -- -- -- -- 

1996 -- -- -- -- -- -- -- -- -- 

1997 -- -- -- -- -- -- -- -- -- 

1998 -- -- -- -- -- -- -- -- -- 

1999 -- -- -- -- -- -- -- -- -- 

2000 -- -- -- -- -- -- -- -- -- 

2001 -- -- -- -- -- -- -- -- -- 

Year January February March April May June July August September 
Gaged (April through September 1945) historic streamflow, in cubic feet per second, for the Snake River above Middle River near B

1931 -- -- -- -- -- -- -- -- -- 

1932 -- -- -- -- -- -- -- -- -- 

1933 -- -- -- -- -- -- -- -- -- 

1934 -- -- -- -- -- -- -- -- -- 

1935 -- -- -- -- -- -- -- -- -- 

1936 -- -- -- -- -- -- -- -- -- 

1937 -- -- -- -- -- -- -- -- -- 

1938 -- -- -- -- -- -- -- -- -- 

1939 -- -- -- -- -- -- -- -- -- 

1940 -- -- -- -- -- -- -- -- -- 

1941 -- -- -- -- -- -- -- -- -- 

1942 -- -- -- -- -- -- -- -- -- 

1943 -- -- -- -- -- -- -- -- -- 

1944 -- -- -- -- -- -- -- -- -- 

1945 -- -- -- 291.00 55.90 13.80 23.20 17.60 10.70 

1946 -- -- -- -- -- -- -- -- -- 

1947 -- -- -- -- -- -- -- -- -- 

1948 -- -- -- -- -- -- -- -- -- 

1949 -- -- -- -- -- -- -- -- -- 

1950 -- -- -- -- -- -- -- -- -- 

1951 -- -- -- -- -- -- -- -- -- 

1952 -- -- -- -- -- -- -- -- -- 

1953 -- -- -- -- -- -- -- -- -- 

1954 -- -- -- -- -- -- -- -- -- 

1955 -- -- -- -- -- -- -- -- -- 

1956 -- -- -- -- -- -- -- -- -- 

1957 -- -- -- -- -- -- -- -- -- 

1958 -- -- -- -- -- -- -- -- -- 

1959 -- -- -- -- -- -- -- -- -- 

1960 -- -- -- -- -- -- -- -- -- 

1961 -- -- -- -- -- -- -- -- -- 

1962 -- -- -- -- -- -- -- -- -- 

1963 -- -- -- -- -- -- -- -- -- 

1964 -- -- -- -- -- -- -- -- -- 

1965 -- -- -- -- -- -- -- -- -- 

Year January February March April May June July August September 
Gaged (April through September 1945) historic streamflow, in cubic feet per second, for the Snake River above Middle River near Big Wo

1966 -- -- -- -- -- -- -- -- -- 

1967 -- -- -- -- -- -- -- -- -- 

1968 -- -- -- -- -- -- -- -- -- 

1969 -- -- -- -- -- -- -- -- -- 

1970 -- -- -- -- -- -- -- -- -- 

1971 -- -- -- -- -- -- -- -- -- 

1972 -- -- -- -- -- -- -- -- -- 

1973 -- -- -- -- -- -- -- -- -- 

1974 -- -- -- -- -- -- -- -- -- 

1975 -- -- -- -- -- -- -- -- -- 

1976 -- -- -- -- -- -- -- -- -- 

1977 -- -- -- -- -- -- -- -- -- 

1978 -- -- -- -- -- -- -- -- -- 

1979 -- -- -- -- -- -- -- -- -- 

1980 -- -- -- -- -- -- -- -- -- 

1981 -- -- -- -- -- -- -- -- -- 

1982 -- -- -- -- -- -- -- -- -- 

1983 -- -- -- -- -- -- -- -- -- 

1984 -- -- -- -- -- -- -- -- -- 

1985 -- -- -- -- -- -- -- -- -- 

1986 -- -- -- -- -- -- -- -- -- 

1987 -- -- -- -- -- -- -- -- -- 

1988 -- -- -- -- -- -- -- -- -- 

1989 -- -- -- -- -- -- -- -- -- 

1990 -- -- -- -- -- -- -- -- -- 

1991 -- -- -- -- -- -- -- -- -- 

1992 -- -- -- -- -- -- -- -- -- 

1993 -- -- -- -- -- -- -- -- -- 

1994 -- -- -- -- -- -- -- -- -- 

1995 -- -- -- -- -- -- -- -- -- 

1996 -- -- -- -- -- -- -- -- -- 

1997 -- -- -- -- -- -- -- -- -- 

1998 -- -- -- -- -- -- -- -- -- 

1999 -- -- -- -- -- -- -- -- -- 

2000 -- -- -- -- -- -- -- -- -- 

2001 -- -- -- -- -- -- -- -- -- 

Year January February March April May June July August September 
Gaged (April through September 1945, October 1950 through September 1981, and March 1982 through December 2001) and estimated (January 193

through September 1950, and October 1981 through February 1982) historic streamflow, in cubic feet per second, for the Middle Riv

1931 0.70 0.64 14.76 14.32 11.80 1.85 1.10 0.23 0.12 

1932 0.01 0.32 7.74 129.13 20.14 6.66 0.32 0.04 0.05 

1933 0.00 0.00 19.46 249.62 20.67 2.79 0.58 0.24 1.74 

1934 0.47 0.45 7.74 63.34 2.15 1.11 0.02 0.27 0.10 

1935 0.01 0.02 32.45 55.12 5.86 64.01 2.19 0.58 0.06 

1936 0.06 0.00 0.09 152.86 11.34 1.12 0.04 0.01 0.01 

1937 0.06 0.01 0.04 71.41 19.60 4.87 5.03 1.30 0.41 

1938 0.00 0.00 25.67 7.00 5.68 0.48 4.99 0.00 0.00 

1939 0.00 0.00 4.67 23.71 2.05 4.49 0.15 0.00 0.00 

1940 0.00 0.00 0.00 35.00 4.10 0.60 0.16 0.32 0.00 

1941 0.00 0.00 0.24 330.09 16.44 43.04 1.64 0.27 31.36 

1942 0.35 0.09 54.54 464.17 53.58 19.53 3.72 3.62 3.53 

1943 0.63 0.52 111.61 120.49 27.65 315.42 17.03 3.59 1.06 

1944 0.71 0.34 0.21 84.80 6.83 19.86 41.27 72.66 21.01 

1945 3.88 5.54 173.52 289.00 73.70 26.50 15.00 4.81 19.50 

1946 0.86 0.88 103.53 56.91 9.08 10.55 3.33 0.41 0.96 

1947 0.18 0.10 2.62 120.31 9.28 774.67 16.57 2.88 1.05 

1948 1.33 0.52 0.30 846.69 187.80 7.08 3.69 1.43 0.40 

1949 1.21 1.21 0.20 418.06 46.43 222.22 18.84 2.59 0.41 

1950 0.85 0.68 0.12 939.07 1,666.62 77.11 168.32 6.42 0.93 

1951 3.21 2.75 4.16 336.90 72.00 7.18 1.53 3.03 27.50 

1952 1.03 1.93 3.42 177.50 19.60 3.50 6.03 0.39 0.00 

1953 0.00 0.00 15.70 33.20 22.00 16.90 3.45 0.25 0.00 

1954 0.00 0.00 0.00 51.80 39.80 50.70 6.26 0.19 0.00 

1955 0.03 0.00 0.00 70.70 23.90 137.40 8.82 0.37 0.00 

1956 0.05 0.00 0.00 132.30 131.80 26.90 312.60 11.80 7.32 

1957 1.94 1.56 39.80 68.60 42.00 64.70 87.60 3.77 163.40 

1958 2.50 1.70 3.76 12.20 5.32 4.85 186.70 5.28 0.15 

1959 0.20 0.00 1.61 209.00 29.90 15.70 9.97 4.36 2.43 

1960 2.10 1.11 1.68 307.10 49.90 49.20 10.40 0.89 0.22 

1961 0.33 0.19 23.00 27.30 10.80 0.77 0.00 0.00 1.47 

1962 0.38 0.13 0.00 244.90 298.90 481.90 43.90 7.34 7.60 

1963 0.41 0.00 18.70 188.60 41.70 30.60 6.88 4.67 0.14 

1964 0.00 0.00 0.00 73.80 44.60 306.10 40.40 28.20 8.43 

1965 2.56 1.17 1.37 577.30 158.80 102.10 92.20 5.02 7.96 

Year January February March April May June July August September 
Gaged (April through September 1945, October 1950 through September 1981, and March 1982 through December 2001) and estimated (January 193

through September 1950, and October 1981 through February 1982) historic streamflow, in cubic feet per second, for the Middle River at A

1966 4.05 1.92 93.00 747.10 231.90 32.70 107.20 24.20 4.74 

1967 0.65 0.53 15.60 472.50 236.20 21.00 4.91 0.16 0.00 

1968 0.00 0.13 26.00 19.20 4.04 232.70 205.00 28.10 27.90 

1969 0.90 1.65 2.97 552.60 63.20 47.10 11.50 1.18 0.22 

1970 0.36 0.04 0.00 302.60 330.30 659.80 25.40 2.75 0.87 

1971 1.55 1.44 6.17 162.00 27.80 12.10 3.39 0.26 0.09 

1972 0.36 0.06 20.60 211.80 36.00 17.40 2.22 0.02 0.02 

1973 0.00 0.00 34.80 6.42 3.30 0.37 0.00 0.02 0.08 

1974 0.11 0.06 0.00 426.20 191.70 45.00 3.01 0.49 0.35 

1975 0.80 0.38 1.24 224.50 125.80 46.00 687.70 11.00 1.54 

1976 1.69 1.80 21.10 189.10 16.30 3.29 1.30 0.07 0.00 

1977 0.00 0.00 0.75 10.30 4.38 3.25 0.22 0.32 0.07 

1978 1.24 0.83 13.40 479.20 116.70 48.90 61.30 7.11 1.07 

1979 0.87 0.62 1.42 611.20 126.80 47.70 12.30 1.61 0.67 

1980 1.27 1.04 2.00 112.60 6.72 0.79 0.02 0.14 0.59 

1981 0.01 0.51 5.51 5.38 2.12 8.40 21.30 0.04 0.77 

1982 0.10 1.33 9.36 284.10 102.30 16.20 52.30 11.70 0.50 

1983 4.65 3.32 217.10 155.70 56.70 61.30 19.70 1.00 0.31 

1984 1.64 1.05 57.70 112.80 22.40 90.70 3.09 0.15 0.01 

1985 0.14 0.14 68.70 83.20 41.90 253.50 74.50 29.50 35.90 

1986 3.71 3.30 124.80 314.30 185.20 34.40 2.79 0.54 0.19 

1987 0.60 0.60 118.20 117.10 19.60 9.06 1.57 0.34 0.02 

1988 0.09 0.06 0.35 57.30 12.00 26.90 0.86 0.01 0.01 

1989 0.01 0.01 0.02 231.10 28.40 28.10 2.95 0.09 0.00 

1990 0.00 0.00 9.62 13.30 2.74 4.69 2.25 0.02 0.00 

1991 0.00 0.01 0.08 0.20 4.63 3.65 40.60 3.38 0.35 

1992 0.84 0.44 85.60 102.80 38.30 5.20 12.20 0.51 0.68 

1993 0.75 0.69 9.01 120.40 16.10 51.60 97.90 264.50 272.40 

1994 2.67 1.12 47.90 53.30 30.70 10.90 145.60 24.40 138.50 

1995 8.77 3.72 335.00 136.80 108.40 12.10 93.80 11.50 10.10 

1996 2.46 1.41 1.48 574.80 895.80 14.40 10.70 3.43 1.15 

1997 2.75 2.34 2.48 965.60 151.50 17.40 237.30 4.15 3.03 

1998 4.70 30.00 255.40 132.80 107.30 188.20 199.10 4.62 3.31 

1999 2.02 2.76 83.20 893.50 309.30 523.80 167.90 129.30 178.80 

2000 3.58 69.80 91.20 129.00 34.30 253.00 60.50 23.60 6.56 

2001 6.43 5.59 26.60 665.00 144.00 63.20 8.28 101.00 3.81 

Year January February March April May June July August September 
Gaged (May 1931 through December 2001) and estimated (January through April 1931) historic streamflow,

in cubic feet per second, for the Park River at Grafton, N. Dak.

1931 0.02 0.42 27.83 133.04 12.50 3.04 0.98 0.19 0.10 

1932 0.00 2.00 15.00 185.00 21.70 5.58 0.27 0.00 0.00 

1933 0.00 0.00 40.00 411.40 22.30 12.20 0.50 0.20 0.00 

1934 0.00 0.05 15.00 78.00 2.16 0.41 0.01 0.00 0.08 

1935 0.00 0.00 68.90 65.90 6.07 3.91 2.00 0.50 0.00 

1936 0.00 0.00 0.00 227.00 12.00 13.00 0.04 0.00 0.00 

1937 0.00 0.00 0.00 90.20 21.10 3.69 4.75 1.17 0.00 

1938 0.00 0.00 53.70 5.40 5.88 0.35 4.71 0.00 0.00 

1939 0.00 0.00 8.77 23.70 2.05 2.83 0.12 0.00 0.00 

1940 0.00 0.00 0.00 38.00 4.20 0.38 0.14 0.27 0.00 

1941 0.00 0.00 0.38 577.30 17.60 12.00 1.48 0.23 31.80 

1942 0.00 0.00 119.70 872.80 59.60 16.40 3.48 3.38 3.29 

1943 0.10 0.11 256.40 170.10 30.10 202.30 150.60 12.70 0.25 

1944 0.01 0.00 0.33 111.10 7.11 8.32 2.42 11.40 7.81 

1945 0.27 0.23 410.00 134.30 56.70 31.50 7.34 0.85 0.61 

1946 0.10 0.13 236.70 68.50 9.54 4.93 1.27 0.13 0.37 

1947 0.00 0.00 4.74 169.80 9.75 20.80 62.00 12.70 3.74 

1948 0.48 0.12 0.47 1,809.00 217.50 37.80 45.20 30.50 2.33 

1949 0.23 0.20 0.31 768.80 51.40 11.50 2.28 1.15 0.06 

1950 0.10 0.10 0.17 2,051.00 2,071.00 65.00 21.20 12.90 1.26 

1951 1.10 0.57 12.10 331.10 33.80 6.43 0.71 2.98 41.30 

1952 0.10 0.00 0.20 46.90 8.24 0.39 0.23 0.00 22.10 

1953 0.21 0.00 2.22 8.09 5.26 10.10 1.15 0.05 0.20 

1954 0.02 1.49 5.90 16.10 13.60 130.90 19.00 6.04 4.87 

1955 0.20 0.20 0.80 445.30 46.40 76.80 10.50 1.30 11.80 

1956 0.00 0.00 11.90 1,014.00 446.80 164.30 19.60 3.38 7.50 

1957 1.58 5.45 57.50 48.00 22.80 10.40 1.88 4.66 151.20 

1958 1.69 1.36 3.63 18.00 3.96 2.68 2.85 0.08 0.00 

1959 0.40 0.00 0.66 243.00 27.00 5.85 3.28 0.03 0.01 

1960 0.05 0.01 1.04 942.00 34.20 11.30 1.05 0.03 0.42 

1961 0.00 0.00 3.17 12.60 2.33 0.00 0.06 0.05 0.04 

1962 0.08 2.92 10.20 716.60 103.30 232.80 18.60 11.00 0.12 

1963 0.00 0.24 30.30 25.70 8.74 105.30 17.20 8.83 0.00 

1964 0.07 0.75 0.73 221.60 58.30 575.90 64.20 2.63 1.16 

1965 0.11 1.48 5.83 892.60 162.70 85.20 22.00 9.93 37.80 

Year January February March April May June July August September 
Gaged (May 1931 through December 2001) and estimated (January through April 1931) historic streamflow,

in cubic feet per second, for the Park River at Grafton, N. Dak.—Continued

1966 2.09 0.19 297.60 637.50 441.00 84.90 136.00 33.30 2.03 

1967 1.13 1.33 110.50 636.70 513.00 23.30 1.98 0.09 0.00 

1968 0.02 1.68 83.40 46.40 50.90 23.20 9.40 0.26 0.11 

1969 0.08 2.28 8.02 859.50 30.60 14.50 7.12 0.42 2.25 

1970 0.27 0.13 0.60 633.70 207.70 38.70 15.00 0.29 0.01 

1971 0.01 0.63 17.00 876.10 57.40 75.80 74.70 4.96 0.03 

1972 0.00 3.86 320.90 417.40 57.20 9.56 0.22 0.02 1.91 

1973 0.72 0.31 62.70 28.20 12.40 9.45 0.38 0.92 0.57 

1974 1.60 1.82 8.50 1,078.00 687.70 100.70 5.58 4.54 0.76 

1975 5.09 3.29 3.63 245.90 145.90 15.40 79.60 0.50 0.27 

1976 5.17 4.55 33.80 542.40 26.70 81.70 3.69 0.40 0.38 

1977 2.19 2.00 6.06 8.83 4.86 1.54 0.13 0.09 0.06 

1978 2.40 1.45 19.80 864.60 98.90 22.40 4.61 0.35 2.02 

1979 0.92 0.77 2.37 1,450.00 285.00 47.00 54.20 6.20 4.46 

1980 2.44 1.32 2.29 92.40 12.30 24.50 0.67 2.01 39.60 

1981 5.42 45.70 112.50 108.20 28.30 50.70 59.10 9.49 10.70 

1982 5.39 3.38 29.00 497.50 111.50 98.00 254.30 38.60 1.47 

1983 13.90 10.40 399.60 319.90 58.30 74.10 20.40 0.65 0.13 

1984 0.47 1.71 36.70 77.60 21.10 17.10 2.25 1.27 0.06 

1985 0.00 0.11 217.80 68.50 21.10 13.40 2.26 25.30 2.19 

1986 8.25 11.20 228.10 195.20 106.90 18.20 55.40 23.20 8.35 

1987 0.34 1.98 97.30 988.30 47.50 14.30 9.39 4.60 0.08 

1988 0.12 0.74 3.85 42.60 7.89 5.52 0.98 0.18 0.00 

1989 0.00 0.00 2.32 32.50 10.90 1.55 0.29 0.03 0.00 

1990 0.02 0.00 0.36 9.60 4.42 1.66 0.00 0.00 0.00 

1991 0.00 0.00 0.00 0.00 5.11 1.68 16.00 2.24 1.13 

1992 10.10 4.74 357.70 217.60 36.10 23.30 5.57 4.35 0.21 

1993 0.11 10.80 20.70 91.80 59.40 26.90 398.40 568.60 72.80 

1994 6.58 5.85 199.00 221.50 109.50 36.20 21.20 2.10 0.13 

1995 0.82 0.80 654.20 433.00 119.80 29.70 43.00 23.40 4.93 

1996 0.18 6.55 9.28 1,072.00 494.70 72.00 10.30 6.90 0.39 

1997 2.13 2.29 9.30 1,794.00 401.10 43.30 440.90 20.70 3.56 

1998 6.36 24.10 506.40 692.00 96.50 126.70 102.10 4.61 2.32 

1999 2.55 2.73 156.10 609.10 231.50 83.20 25.90 13.30 2.90 

2000 2.24 2.48 8.08 5.95 6.14 35.60 23.20 2.69 0.62 

2001 4.88 3.97 33.60 715.00 173.00 70.90 14.70 26.20 0.01 

Year January February March April May June July August September 
Gaged (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Pembina River at Nech

1931 7.20 6.60 45.20 462.90 102.70 22.30 10.80 2.07 0.39 

1932 0.13 3.45 14.10 422.90 185.70 71.20 21.10 6.10 1.84 

1933 0.00 0.00 17.90 720.70 554.50 319.80 74.50 27.20 28.90 

1934 4.74 4.81 75.20 343.30 153.50 67.70 19.90 1.37 0.10 

1935 0.00 0.00 12.60 144.10 64.20 108.20 62.40 23.50 14.90 

1936 0.57 0.04 0.00 681.30 428.40 196.50 57.00 20.70 25.30 

1937 0.56 0.00 0.00 112.10 74.80 65.50 14.30 12.50 0.40 

1938 0.00 0.00 179.40 101.00 78.30 36.60 12.50 0.05 0.00 

1939 0.00 0.00 0.00 24.70 11.80 10.80 0.60 0.00 0.00 

1940 0.00 0.00 0.00 94.00 35.50 6.56 0.00 7.06 0.00 

1941 0.00 0.00 0.00 995.80 384.50 174.50 61.70 28.10 134.60 

1942 3.53 1.09 45.70 1,900.00 977.10 365.00 129.20 100.10 68.40 

1943 6.51 5.45 155.10 500.60 301.90 314.70 226.50 206.90 180.90 

1944 7.37 3.65 3.74 273.90 203.70 255.20 563.80 810.90 463.00 

1945 42.90 49.50 740.80 1,080.00 759.40 439.30 257.00 142.40 96.40 

1946 8.98 8.96 568.40 674.00 290.20 113.40 67.50 32.00 20.30 

1947 1.76 1.20 1.03 609.00 291.90 199.80 87.90 122.40 65.00 

1948 14.10 5.48 5.03 930.20 888.50 412.90 312.00 197.00 117.20 

1949 12.80 12.00 11.50 2,428.00 1,569.00 656.90 272.50 142.40 69.10 

1950 8.81 7.04 9.58 1,804.00 2,887.00 1,211.00 598.40 408.30 222.50 

1951 31.50 25.00 38.40 844.50 512.70 265.60 120.20 67.30 48.60 

1952 1.29 1.00 1.28 283.50 204.40 123.00 70.50 20.60 4.52 

1953 0.22 0.10 0.93 71.10 46.50 157.60 90.80 64.00 14.70 

1954 1.06 0.32 9.25 94.60 80.60 389.80 686.60 401.20 205.70 

1955 10.50 16.10 13.60 1,511.00 854.50 579.30 303.60 109.10 57.00 

1956 8.84 8.55 12.10 1,180.00 2,264.00 881.20 377.20 182.50 139.70 

1957 15.70 7.68 118.40 275.40 202.10 134.90 63.90 77.60 116.50 

1958 35.10 21.10 24.20 205.50 125.50 38.80 31.90 5.19 2.31 

1959 0.15 0.10 0.75 500.30 166.40 140.00 39.80 18.00 10.80 

1960 66.00 39.70 23.00 1,833.00 1,252.00 480.50 203.30 94.30 44.00 

1961 4.36 1.96 49.10 268.40 182.60 56.70 13.60 2.42 3.64 

1962 0.40 0.13 1.03 672.80 377.50 296.50 114.60 83.10 99.80 

1963 18.40 1.67 91.10 196.70 192.00 268.50 171.90 127.10 74.30 

1964 3.29 3.22 2.74 328.80 328.50 203.40 73.10 49.60 57.30 

1965 4.41 3.72 2.76 862.60 701.70 453.50 181.60 74.70 94.50 

Year January February March April May June July August September 
Gaged (January 1931 through December 2001) historic streamflow, in cubic feet per second, for the Pembina River at Neche, N. D

1966 21.50 16.40 139.10 1,547.00 964.90 389.50 241.80 113.30 44.70 

1967 8.10 8.40 26.60 921.70 1,010.00 317.90 105.10 38.40 13.30 

1968 2.60 1.80 155.80 204.90 143.60 70.00 43.70 138.40 342.80 

1969 23.30 17.00 23.50 3,146.00 1,805.00 621.50 364.10 183.50 121.20 

1970 17.40 15.20 11.80 1,613.00 2,313.00 1,465.00 809.90 322.40 180.10 

1971 14.60 13.80 16.10 2,398.00 1,517.00 581.00 343.70 266.20 157.30 

1972 17.30 10.90 395.60 1,330.00 891.70 356.60 198.90 178.00 110.80 

1973 2.81 2.70 90.70 101.30 71.00 51.30 63.50 61.60 62.00 

1974 10.60 6.20 11.70 3,028.00 4,618.00 1,777.00 529.90 149.60 99.00 

1975 11.90 7.29 8.21 361.80 1,221.00 664.70 264.10 100.80 50.10 

1976 13.20 15.00 30.70 2,766.00 1,450.00 502.50 251.70 85.20 41.20 

1977 2.19 2.30 15.30 69.20 80.00 49.00 18.90 5.74 25.50 

1978 3.01 0.43 0.06 1,170.00 519.00 194.60 68.10 46.80 49.80 

1979 3.74 3.28 4.76 1,991.00 3,284.00 867.00 288.50 80.40 62.00 

1980 6.45 5.03 5.83 205.00 84.30 36.60 11.20 11.50 12.90 

1981 1.37 25.10 112.20 220.70 137.20 65.70 28.20 14.10 6.27 

1982 0.99 0.02 33.40 605.20 644.50 520.80 261.50 133.80 61.20 

1983 12.80 5.42 172.30 917.70 456.20 274.60 73.10 22.90 12.60 

1984 0.53 0.00 25.60 148.10 164.00 138.30 32.90 6.99 2.31 

1985 0.07 0.00 494.50 832.00 264.60 136.60 136.30 81.40 45.10 

1986 15.20 8.41 571.40 927.20 771.60 382.50 179.20 133.50 65.40 

1987 13.60 17.30 48.50 1,997.00 878.40 264.30 113.80 61.70 64.80 

1988 4.23 2.17 44.40 145.90 53.90 16.50 3.27 0.44 0.10 

1989 0.18 0.00 0.00 177.80 102.80 56.20 12.90 0.59 0.00 

1990 0.00 0.00 0.82 316.10 122.30 185.10 60.00 6.16 0.19 

1991 0.02 0.00 9.25 74.90 73.50 148.10 260.30 99.20 17.50 

1992 8.17 8.06 438.10 2,554.00 889.20 230.70 90.40 29.00 11.90 

1993 4.74 3.46 31.70 540.20 293.20 206.50 648.70 946.30 648.40 

1994 46.60 36.20 395.40 1,146.00 543.60 234.30 176.80 114.80 187.10 

1995 120.00 65.80 1,216.00 4,382.00 3,183.00 1,291.00 478.90 881.80 345.70 

1996 23.10 13.10 14.60 3,164.00 2,784.00 917.10 419.00 308.10 184.00 

1997 39.50 37.10 38.90 4,412.00 4,770.00 968.90 1,509.00 431.80 164.00 

1998 32.90 34.20 579.30 4,713.00 1,576.00 624.10 495.90 281.90 137.70 

1999 25.00 24.60 295.40 1,175.00 1,617.00 1,894.00 766.30 232.50 111.30 

2000 29.00 31.30 149.00 130.00 88.10 74.90 52.30 48.20 39.40 

2001 16.90 12.90 15.80 2,907.00 1,742.00 627.00 310.00 226.00 106.00 

Year January February March April May June July August September 
Gaged (April through June 1950, October 1951 through December 2001; no winter data October 1982 through Decembe

historic streamflow, in cubic feet per second, for the Tongue River at Akra, N. Dak.

1931 -- -- -- -- -- -- -- -- -- 

1932 -- -- -- -- -- -- -- -- -- 

1933 -- -- -- -- -- -- -- -- -- 

1934 -- -- -- -- -- -- -- -- -- 

1935 -- -- -- -- -- -- -- -- -- 

1936 -- -- -- -- -- -- -- -- -- 

1937 -- -- -- -- -- -- -- -- -- 

1938 -- -- -- -- -- -- -- -- -- 

1939 -- -- -- -- -- -- -- -- -- 

1940 -- -- -- -- -- -- -- -- -- 

1941 -- -- -- -- -- -- -- -- -- 

1942 -- -- -- -- -- -- -- -- -- 

1943 -- -- -- -- -- -- -- -- -- 

1944 -- -- -- -- -- -- -- -- -- 

1945 -- -- -- -- -- -- -- -- -- 

1946 -- -- -- -- -- -- -- -- -- 

1947 -- -- -- -- -- -- -- -- -- 

1948 -- -- -- -- -- -- -- -- -- 

1949 -- -- -- -- -- -- -- -- -- 

1950 -- -- -- 450.90 586.90 40.70 -- -- -- 

1951 -- -- -- -- -- -- -- -- -- 

1952 1.25 1.00 4.57 46.80 5.90 1.91 1.24 0.54 0.58 

1953 0.51 0.24 2.03 9.84 18.90 15.50 2.41 4.64 1.68 

1954 0.60 1.09 7.06 36.00 18.50 51.70 4.13 3.09 7.32 

1955 1.23 1.60 1.61 167.50 18.10 22.50 34.90 2.01 1.95 

1956 3.40 4.23 3.92 294.20 208.80 32.70 13.90 4.69 11.80 

1957 2.88 1.50 40.10 28.50 21.50 13.20 6.25 7.78 20.60 

1958 2.21 2.38 9.41 15.60 6.38 3.95 11.90 1.12 0.95 

1959 2.10 1.86 5.54 100.00 20.20 7.91 2.65 0.99 2.45 

1960 2.64 2.03 1.85 196.60 38.20 6.22 2.23 1.09 1.00 

1961 1.37 0.83 13.70 9.20 3.93 0.73 0.46 0.48 0.28 

1962 1.28 0.57 0.49 128.90 81.70 66.80 21.30 9.92 7.42 

1963 4.86 5.22 5.16 11.40 9.50 67.40 17.00 8.44 7.34 

1964 2.01 1.43 0.22 83.20 35.60 78.70 17.80 4.38 11.00 

1965 4.46 2.59 5.58 214.60 107.10 36.40 10.60 5.91 9.67 

Year January February March April May June July August September 
Gaged (April through June 1950, October 1951 through December 2001; no winter data October 1982 through Decembe

historic streamflow, in cubic feet per second, for the Tongue River at Akra, N. Dak.—Continued

1966 5.15 3.04 134.90 206.10 143.90 13.30 31.40 8.20 3.52 

1967 3.05 2.88 35.10 159.00 181.20 1.91 2.94 0.87 3.21 

1968 6.12 5.12 19.90 26.30 38.40 15.90 14.30 7.98 5.27 

1969 2.34 3.25 6.34 256.40 37.30 10.80 7.66 1.17 0.56 

1970 6.40 6.38 5.52 215.60 190.80 46.50 6.45 4.25 3.18 

1971 7.27 2.11 1.88 253.10 39.80 46.70 15.20 2.16 1.09 

1972 2.16 3.45 50.90 110.10 22.60 5.36 5.29 2.50 3.03 

1973 3.43 3.80 36.00 13.70 8.53 4.03 3.51 1.28 0.88 

1974 4.29 3.20 11.40 246.90 224.80 27.30 2.77 0.97 0.65 

1975 5.37 4.53 3.67 31.20 27.60 3.17 3.02 3.34 2.67 

1976 3.99 4.56 4.73 141.80 5.45 30.80 1.79 2.00 1.62 

1977 1.72 1.66 7.09 4.03 4.26 4.30 7.67 1.60 2.08 

1978 3.65 9.07 13.70 205.60 30.80 3.48 0.09 0.80 0.21 

1979 1.65 8.35 19.20 249.80 184.10 23.30 18.20 4.06 20.20 

1980 4.74 4.21 7.27 37.10 1.63 0.83 0.74 9.62 28.30 

1981 4.60 18.70 28.80 47.30 19.90 19.60 6.28 6.63 13.60 

1982 1.29 0.83 12.70 97.90 37.60 27.60 14.80 6.04 7.77 

1983 -- -- 54.60 111.50 18.60 7.82 3.51 1.56 2.85 

1984 -- -- 2.67 22.10 9.32 7.83 7.86 0.90 3.26 

1985 -- -- 76.90 56.00 13.00 11.00 12.00 28.90 18.00 

1986 -- -- 82.30 124.90 68.00 10.80 22.80 10.90 19.60 

1987 -- -- 39.60 269.70 20.50 7.61 3.28 0.82 1.64 

1988 -- -- 5.27 14.10 6.81 0.47 0.45 0.21 0.24 

1989 -- -- 15.50 14.40 4.96 5.04 0.94 1.54 0.10 

1990 -- -- 1.55 6.27 6.76 6.12 1.95 1.43 1.41 

1991 -- -- 0.73 0.43 10.50 17.40 6.10 6.29 3.69 

1992 -- -- 34.40 21.30 15.60 7.66 8.52 3.45 7.19 

1993 -- -- 20.80 48.00 32.10 23.60 107.30 143.70 25.90 

1994 -- -- 40.20 71.70 12.50 3.13 5.16 9.67 4.39 

1995 -- -- 119.60 153.40 39.20 9.00 17.70 4.72 8.42 

1996 -- -- 33.80 250.70 143.70 27.50 31.00 8.10 7.31 

1997 -- -- 15.70 317.80 293.30 20.70 216.40 10.70 8.36 

1998 -- -- 93.40 275.70 34.40 15.90 8.15 5.26 8.10 

1999 -- -- 41.60 144.00 59.40 16.30 12.60 6.66 8.06 

2000 -- -- 8.80 8.34 9.76 13.50 2.75 4.43 3.26 

2001 -- -- 14.70 234.00 49.00 22.60 9.75 10.20 6.44 

Year January February March April May June July August September 
Gaged (October 1938 through September 1951) historic streamflow, in cubic feet per second, for the Tongue River at Cavali

1931 -- -- -- -- -- -- -- -- -- 

1932 -- -- -- -- -- -- -- -- -- 

1933 -- -- -- -- -- -- -- -- -- 

1934 -- -- -- -- -- -- -- -- -- 

1935 -- -- -- -- -- -- -- -- -- 

1936 -- -- -- -- -- -- -- -- -- 

1937 -- -- -- -- -- -- -- -- -- 

1938 -- -- -- -- -- -- -- -- -- 

1939 0.00 0.00 0.48 14.20 2.87 1.28 0.09 0.00 0.00 

1940 0.00 0.00 0.00 37.80 5.41 1.24 0.26 0.16 0.01 

1941 0.00 0.00 0.00 145.50 9.60 17.70 1.40 0.07 16.80 

1942 1.51 0.30 26.40 267.40 59.60 17.80 3.32 20.90 13.20 

1943 0.66 0.32 59.50 85.80 29.60 98.20 30.90 1.70 0.59 

1944 0.54 0.00 0.00 65.00 10.90 10.80 7.96 10.10 23.50 

1945 3.65 2.83 184.40 60.30 42.50 30.00 17.10 3.45 4.24 

1946 1.56 1.30 91.20 32.70 11.90 6.15 2.80 0.45 2.40 

1947 0.03 0.00 0.48 82.20 13.50 35.90 9.11 4.49 2.06 

1948 2.25 0.59 0.87 273.00 64.40 15.30 19.80 7.63 2.05 

1949 0.50 0.10 1.47 175.90 22.50 8.78 2.50 1.30 1.45 

1950 0.35 0.25 0.53 178.10 405.90 45.50 14.20 2.91 3.75 

1951 1.60 1.00 27.00 106.00 19.50 7.65 1.97 3.96 2.54 

1952 -- -- -- -- -- -- -- -- -- 

1953 -- -- -- -- -- -- -- -- -- 

1954 -- -- -- -- -- -- -- -- -- 

1955 -- -- -- -- -- -- -- -- -- 

1956 -- -- -- -- -- -- -- -- -- 

1957 -- -- -- -- -- -- -- -- -- 

1958 -- -- -- -- -- -- -- -- -- 

1959 -- -- -- -- -- -- -- -- -- 

1960 -- -- -- -- -- -- -- -- -- 

1961 -- -- -- -- -- -- -- -- -- 

1962 -- -- -- -- -- -- -- -- -- 

1963 -- -- -- -- -- -- -- -- -- 

1964 -- -- -- -- -- -- -- -- -- 

1965 -- -- -- -- -- -- -- -- -- 

Year January February March April May June July August September 
Gaged (October 1938 through September 1951) historic streamflow, in cubic feet per second, for the Tongue River at Cavalier, N. D

1966 -- -- -- -- -- -- -- -- -- 

1967 -- -- -- -- -- -- -- -- -- 

1968 -- -- -- -- -- -- -- -- -- 

1969 -- -- -- -- -- -- -- -- -- 

1970 -- -- -- -- -- -- -- -- -- 

1971 -- -- -- -- -- -- -- -- -- 

1972 -- -- -- -- -- -- -- -- -- 

1973 -- -- -- -- -- -- -- -- -- 

1974 -- -- -- -- -- -- -- -- -- 

1975 -- -- -- -- -- -- -- -- -- 

1976 -- -- -- -- -- -- -- -- -- 

1977 -- -- -- -- -- -- -- -- -- 

1978 -- -- -- -- -- -- -- -- -- 

1979 -- -- -- -- -- -- -- -- -- 

1980 -- -- -- -- -- -- -- -- -- 

1981 -- -- -- -- -- -- -- -- -- 

1982 -- -- -- -- -- -- -- -- -- 

1983 -- -- -- -- -- -- -- -- -- 

1984 -- -- -- -- -- -- -- -- -- 

1985 -- -- -- -- -- -- -- -- -- 

1986 -- -- -- -- -- -- -- -- -- 

1987 -- -- -- -- -- -- -- -- -- 

1988 -- -- -- -- -- -- -- -- -- 

1989 -- -- -- -- -- -- -- -- -- 

1990 -- -- -- -- -- -- -- -- -- 

1991 -- -- -- -- -- -- -- -- -- 

1992 -- -- -- -- -- -- -- -- -- 

1993 -- -- -- -- -- -- -- -- -- 

1994 -- -- -- -- -- -- -- -- -- 

1995 -- -- -- -- -- -- -- -- -- 

1996 -- -- -- -- -- -- -- -- -- 

1997 -- -- -- -- -- -- -- -- -- 

1998 -- -- -- -- -- -- -- -- -- 

1999 -- -- -- -- -- -- -- -- -- 

2000 -- -- -- -- -- -- -- -- -- 

2001 -- -- -- -- -- -- -- -- -- 

Year January February March April May June July August September 
Year January February March April May June July August September 

Estimated naturalized streamflow, in cubic feet per second, for the Otter Tail River above Orwell Dam

1931 30.00 65.00 131.80 140.80 159.50 104.40 62.60 32.30 44.40 

1932 40.00 45.00 60.00 81.70 50.60 50.30 32.70 27.20 31.40 

1933 23.00 25.00 170.00 51.30 37.80 61.80 19.10 14.70 25.80 

1934 27.40 26.20 25.80 39.50 18.00 14.20 13.80 11.50 7.99 

1935 16.00 10.80 58.80 51.50 51.80 63.50 102.60 22.80 13.90 

1936 26.50 24.90 32.50 65.00 41.10 21.90 12.80 19.70 21.60 

1937 15.10 15.70 23.50 60.90 58.00 178.20 96.90 72.70 125.00 

1938 20.40 36.10 100.80 144.00 272.20 267.20 79.00 24.90 47.70 

1939 117.40 118.90 228.20 207.00 180.70 83.30 46.40 18.50 17.00 

1940 17.70 32.00 44.70 166.50 308.90 137.00 28.50 19.40 22.30 

1941 58.60 105.20 163.50 277.10 302.70 210.50 99.00 39.00 51.50 

1942 123.50 97.50 133.10 120.10 383.40 426.80 207.80 164.60 230.70 

1943 306.20 240.90 310.10 595.30 656.10 776.30 534.10 432.50 396.70 

1944 199.10 157.80 196.90 309.30 362.00 616.00 470.70 350.30 581.30 

1945 411.60 369.30 527.80 649.70 735.30 640.90 312.30 158.60 142.90 

1946 194.20 146.40 360.10 513.70 569.00 368.40 621.30 610.60 511.40 

1947 415.30 341.80 343.20 703.60 900.30 871.80 560.40 238.10 207.30 

1948 157.40 129.90 247.50 480.60 647.20 443.80 254.20 213.10 190.40 

1949 90.30 107.60 200.60 220.60 224.00 213.90 225.10 178.30 93.50 

1950 109.60 143.00 218.00 428.50 869.50 883.70 666.90 325.70 162.40 

1951 143.60 199.90 260.50 607.60 635.00 661.50 463.50 332.10 321.70 

1952 478.70 484.40 488.70 787.40 822.60 563.80 426.00 446.80 463.40 

1953 169.30 212.00 334.00 421.00 558.30 1,262.00 1,246.00 628.93 601.03 

1954 304.70 292.47 444.17 620.38 852.15 906.72 521.38 264.55 257.57 

1955 127.55 152.02 230.79 473.24 396.04 337.94 480.90 447.27 504.71 

1956 177.26 180.86 210.89 636.70 813.43 649.21 291.53 221.28 117.14 

1957 73.60 73.58 222.30 421.79 627.14 592.00 549.08 505.57 487.60 

1958 227.23 241.01 354.91 381.48 236.42 216.26 354.19 257.52 258.69 

1959 165.96 182.38 282.33 303.35 329.66 513.06 412.98 281.55 214.40 

1960 203.84 218.86 228.82 510.17 769.02 648.09 403.71 222.72 183.49 

1961 144.26 132.54 194.85 281.43 334.70 373.44 202.68 228.30 107.77 

1962 58.56 112.10 207.31 433.65 669.26 1,025.54 910.10 641.05 543.43 

1963 185.22 174.48 270.92 443.51 442.37 585.99 355.78 248.18 244.04 

1964 129.81 143.67 185.56 473.36 767.69 515.42 301.23 221.99 230.11 

1965 168.89 144.77 178.21 689.77 939.64 1,130.03 766.89 474.05 441.86 
Estimated naturalized streamflow, in cubic feet per second, for the Otter Tail River above Orwell Dam—Continued

1966 415.47 332.69 751.04 1,034.00 1,332.91 995.74 566.09 594.05 477.28 

1967 360.76 337.70 464.30 779.56 1,039.54 961.90 641.46 339.50 203.99 

1968 88.85 135.74 251.03 396.53 594.28 579.15 466.96 330.48 247.37 

1969 224.87 349.75 446.13 874.21 1,075.61 814.78 463.93 272.22 120.57 

1970 147.50 167.07 219.79 392.03 675.44 715.28 477.16 215.32 98.90 

1971 120.78 149.27 247.87 453.00 345.74 301.85 416.72 229.95 246.17 

1972 501.46 464.18 683.98 771.75 1,099.82 1,026.57 670.16 576.23 496.13 

1973 335.04 338.72 494.37 438.73 373.77 290.21 234.81 187.98 210.71 

1974 468.81 440.10 465.12 606.87 1,014.93 1,176.62 676.03 434.40 327.51 

1975 170.10 245.49 389.41 737.86 1,009.93 1,076.94 840.37 556.24 415.63 

1976 217.03 284.07 406.60 514.82 326.37 200.50 137.58 31.84 23.44 

1977 13.13 16.73 66.85 104.33 73.48 73.21 64.87 61.30 113.25 

1978 356.31 318.74 510.64 753.15 770.85 494.18 412.73 238.76 160.71 

1979 71.61 109.51 260.30 749.98 940.08 936.80 778.66 700.79 548.18 

1980 321.89 360.95 476.84 643.00 474.38 339.44 178.89 129.84 113.31 

1981 96.08 136.25 179.78 218.95 171.48 145.77 127.15 207.64 137.57 

1982 184.90 245.82 411.39 617.47 739.57 716.24 534.96 370.86 250.17 

1983 248.34 260.31 338.43 371.81 319.39 258.64 368.52 411.99 405.27 

1984 245.57 325.80 498.68 580.71 574.44 670.22 429.68 253.00 149.76 

1985 246.04 258.54 441.68 608.72 930.88 1,258.02 1,113.15 1,036.39 897.03 

1986 573.89 533.56 708.42 1,034.05 1,457.79 1,356.27 898.32 610.31 698.33 

1987 590.79 543.62 637.51 669.40 524.34 449.69 286.80 226.03 181.42 

1988 164.27 168.56 299.01 351.54 358.04 220.51 103.29 65.38 70.42 

1989 104.72 144.74 279.28 708.32 625.50 571.01 319.99 142.90 165.21 

1990 132.54 157.20 326.59 441.39 520.26 534.46 398.76 245.53 169.33 

1991 101.82 156.68 254.80 384.68 694.31 721.80 680.21 446.25 336.44 

1992 205.33 252.45 369.24 446.11 445.43 379.26 357.68 304.32 262.86 

1993 225.87 283.95 417.25 626.85 687.36 963.96 1,034.93 961.32 1,023.97 

1994 559.14 639.77 724.32 831.86 1,001.45 723.45 574.80 419.56 289.68 

1995 409.15 416.81 634.51 865.07 896.79 630.20 517.70 327.34 264.00 

1996 368.95 398.47 503.51 774.99 1,167.63 1,017.79 593.45 353.67 224.44 

1997 505.26 462.35 521.69 1,351.79 1,368.28 1,065.71 853.21 726.75 577.84 

1998 517.09 583.47 700.96 824.19 793.30 745.87 1,117.49 846.28 556.41 

1999 738.19 746.88 792.83 1,085.21 1,260.52 1,199.91 876.76 713.74 764.95 

2000 461.76 493.85 696.71 846.70 801.25 797.09 831.60 616.45 433.33 

2001 690.00 608.96 635.29 1,148.95 1,442.35 1,414.61 1,019.33 636.69 472.34 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Otter Tail River at the mouth

1931 33.63 72.88 149.09 159.27 183.45 120.07 72.00 37.15 51.07 

1932 44.85 50.45 67.87 92.42 58.20 57.85 37.61 31.28 36.11 

1933 25.79 28.03 192.30 58.03 43.48 71.08 21.97 16.91 29.67 

1934 30.72 29.37 29.18 44.68 20.70 16.33 15.87 13.23 9.19 

1935 17.94 12.11 66.51 58.26 59.58 73.03 118.00 26.22 15.99 

1936 29.71 27.92 36.76 73.57 47.27 25.19 14.72 22.66 24.84 

1937 16.93 17.60 26.58 69.46 67.44 204.95 111.45 83.61 143.77 

1938 22.87 40.47 114.02 162.89 313.07 307.32 90.86 28.64 54.86 

1939 131.62 133.31 259.85 235.94 207.86 95.86 53.39 21.28 19.55 

1940 19.84 35.88 50.56 188.34 355.28 157.57 32.78 22.31 25.65 

1941 65.70 117.95 185.01 313.62 348.17 243.02 114.14 44.98 59.52 

1942 138.46 109.31 151.03 137.43 550.01 582.71 229.76 171.15 229.54 

1943 343.30 270.09 320.19 913.01 685.05 884.29 600.22 464.79 397.23 

1944 196.00 152.00 191.71 367.51 461.23 832.88 687.34 366.33 589.73 

1945 405.30 370.73 683.19 673.48 748.68 654.41 299.13 142.99 139.55 

1946 189.70 127.50 455.78 529.06 571.38 349.40 633.64 603.73 498.98 

1947 411.50 342.33 373.37 933.70 929.91 911.80 575.60 222.66 205.92 

1948 148.69 115.20 241.27 577.31 648.43 447.54 251.10 209.98 164.20 

1949 69.80 85.70 205.44 259.66 215.88 215.65 321.39 181.68 90.59 

1950 87.90 132.40 267.26 623.95 1,020.13 883.52 699.04 330.54 168.96 

1951 144.75 146.88 237.72 918.79 670.11 677.08 476.63 334.15 322.79 

1952 484.27 492.78 413.40 1,252.41 833.91 573.90 439.18 401.88 443.14 

1953 166.50 192.70 375.07 445.65 585.51 1,338.80 1,254.98 645.65 610.34 

1954 281.50 300.88 461.09 632.99 843.59 935.57 525.10 266.78 258.32 

1955 130.94 148.22 235.72 501.14 369.48 321.73 486.42 423.28 450.29 

1956 179.95 185.59 216.32 678.91 813.63 659.34 285.02 237.81 119.12 

1957 68.60 73.82 260.19 470.44 640.67 625.04 566.17 507.46 487.78 

1958 231.94 241.61 364.06 392.81 236.42 214.32 359.53 257.87 241.70 

1959 170.53 184.91 287.87 314.00 352.95 522.73 430.51 282.72 204.50 

1960 201.34 213.56 252.48 597.75 771.47 653.76 408.35 224.76 179.29 

1961 138.36 135.22 208.80 282.34 342.72 383.57 203.27 212.15 104.31 

1962 59.09 114.03 211.09 536.50 895.38 1,212.91 1,082.08 657.72 553.06 

1963 190.17 180.54 291.86 455.06 447.63 690.98 365.90 249.97 243.99 

1964 108.56 144.97 192.56 516.06 785.80 518.72 290.80 222.12 225.01 

1965 149.89 146.49 180.94 864.96 960.67 1,192.07 808.87 460.15 445.98 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Otter Tail River at the mouth—Continued

1966 413.47 323.51 968.13 1,061.94 1,349.15 1,015.76 578.37 592.88 414.93 

1967 335.76 333.60 517.04 855.13 1,060.26 1,025.67 631.63 322.33 200.14 

1968 89.02 129.54 260.73 398.69 559.19 580.37 462.96 323.82 241.42 

1969 196.42 355.91 460.41 1,396.90 1,117.85 821.98 472.02 273.10 121.63 

1970 111.80 131.47 225.04 442.54 691.26 735.99 481.39 205.32 96.50 

1971 101.38 115.57 282.94 471.50 350.93 296.83 436.65 232.08 245.33 

1972 508.13 464.52 834.59 824.02 1,170.33 1,040.25 695.61 582.08 497.94 

1973 323.52 337.30 523.94 446.78 369.67 294.11 229.17 179.10 188.06 

1974 407.81 446.95 477.58 620.75 1,017.22 1,131.85 682.65 436.99 322.16 

1975 157.40 226.29 318.61 867.42 1,029.90 1,114.98 977.89 532.54 409.16 

1976 215.83 291.33 474.25 530.92 328.04 187.58 136.58 28.04 16.22 

1977 2.14 12.33 78.07 124.34 75.28 80.90 66.14 61.98 117.83 

1978 348.41 290.74 724.31 1,121.48 807.64 530.97 558.98 246.10 158.86 

1979 72.77 79.91 266.39 1,277.07 954.76 969.84 799.22 705.29 557.38 

1980 330.17 364.70 519.36 723.11 482.68 368.25 181.33 134.69 105.74 

1981 96.63 140.79 184.00 215.06 174.15 162.07 135.61 224.10 130.77 

1982 176.60 243.12 453.61 698.03 748.74 718.37 545.88 376.14 251.84 

1983 257.99 274.06 379.02 384.45 312.16 235.95 379.36 398.54 397.37 

1984 235.87 326.34 671.10 666.48 585.60 869.32 455.92 254.48 152.26 

1985 246.17 267.43 549.98 613.94 973.20 1,313.92 1,099.57 1,037.58 900.42 

1986 589.65 559.47 945.64 1,283.84 1,582.31 1,346.81 911.02 614.86 849.67 

1987 585.36 547.10 696.14 682.40 532.04 454.68 296.13 231.21 184.17 

1988 145.96 174.48 342.81 359.09 361.20 224.70 105.80 67.74 66.92 

1989 83.62 128.44 330.90 1,134.18 629.57 580.98 321.92 144.86 160.65 

1990 141.76 173.19 443.16 428.36 508.38 508.61 400.72 243.10 162.87 

1991 90.43 94.92 259.68 401.16 674.14 686.81 584.39 450.18 354.79 

1992 177.54 226.74 464.28 450.36 431.24 381.64 362.69 328.99 274.65 

1993 188.83 238.02 540.07 827.00 715.58 1,044.23 1,313.06 928.92 936.12 

1994 555.79 559.10 1,340.41 984.56 1,059.04 801.42 609.77 450.51 293.09 

1995 376.62 433.84 819.54 1,012.80 965.47 741.12 637.16 330.56 269.60 

1996 453.32 449.94 876.46 1,065.29 1,185.62 1,041.61 605.32 350.52 210.57 

1997 431.24 497.34 548.83 2,490.83 1,402.84 1,107.47 948.89 750.72 584.51 

1998 424.09 678.22 647.39 879.91 835.85 785.54 1,165.82 866.73 590.59 

1999 624.25 635.31 872.96 1,134.89 1,290.76 1,327.35 951.64 768.31 828.96 

2000 409.23 498.17 854.39 831.94 864.61 831.94 859.94 636.92 444.92 

2001 656.86 608.94 683.53 1,269.19 1,309.87 1,491.65 1,076.55 619.04 468.07 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Bois de Sioux River above White Rock Dam

1931 0.00 0.00 2.93 1.76 0.81 4.62 1.79 2.60 5.54 

1932 0.00 0.00 6.99 33.77 3.58 1.18 0.00 0.00 0.00 

1933 0.00 0.72 18.70 7.22 5.53 3.02 0.00 0.00 0.00 

1934 0.00 0.00 0.00 2.69 0.16 0.00 0.00 0.00 0.00 

1935 0.00 1.26 55.77 7.22 13.82 18.14 20.97 0.65 0.00 

1936 0.00 0.00 55.68 23.66 4.94 0.30 0.00 0.00 0.00 

1937 0.00 0.00 83.18 222.52 28.34 5.63 16.26 1.25 0.00 

1938 0.00 55.22 100.25 12.44 25.80 51.90 65.70 0.00 0.00 

1939 0.00 0.00 407.55 29.72 2.99 5.07 2.36 0.18 0.00 

1940 0.00 0.00 21.83 130.96 13.53 0.08 0.00 0.00 0.00 

1941 0.00 0.00 109.90 72.61 5.24 54.26 0.68 22.64 68.70 

1942 0.00 0.00 10.15 32.68 799.52 733.71 35.99 18.90 54.05 

1943 0.00 0.00 58.06 1,003.27 113.84 372.46 123.92 62.03 17.22 

1944 0.00 0.00 7.24 61.17 189.03 700.11 84.57 10.00 6.05 

1945 0.00 0.00 260.61 103.70 33.61 73.65 5.57 0.88 0.00 

1946 0.00 0.00 587.38 170.14 21.14 4.87 88.77 3.09 2.60 

1947 0.13 0.37 144.48 1,320.59 260.44 148.42 24.36 0.78 0.00 

1948 0.00 0.00 338.92 781.82 74.49 17.22 25.34 5.21 0.27 

1949 0.00 0.00 98.17 59.82 3.99 9.55 602.09 22.40 2.10 

1950 0.00 0.00 92.50 672.45 659.50 104.18 358.45 20.72 1.46 

1951 0.01 0.52 0.09 908.75 163.82 115.80 61.19 7.35 2.74 

1952 2.69 1.68 1.86 2,385.97 315.05 70.43 96.61 11.16 6.55 

1953 0.98 1.09 207.95 98.71 58.95 129.94 49.99 1.88 0.00 

1954 0.00 0.00 23.09 58.87 36.83 127.56 12.83 8.21 8.02 

1955 0.05 0.00 22.55 82.37 4.89 25.62 96.19 5.21 0.80 

1956 0.00 0.00 0.08 193.09 99.00 56.29 9.55 105.44 6.30 

1957 0.13 0.00 45.50 228.20 138.34 309.45 48.31 28.56 35.01 

1958 0.97 14.56 140.43 167.44 29.40 10.08 5.61 2.17 3.08 

1959 0.19 1.03 13.17 4.15 2.44 588.52 4.77 14.66 8.14 

1960 3.22 1.47 22.35 205.14 54.51 59.37 3.50 0.11 5.52 

1961 0.21 2.99 22.98 5.50 9.41 9.76 1.15 1.13 0.81 

1962 0.04 0.99 0.68 750.68 872.68 948.70 1,793.35 340.91 18.76 

1963 0.21 2.77 45.96 76.60 39.58 949.99 22.95 2.55 0.15 

1964 0.19 1.88 17.99 142.90 97.09 53.03 16.98 1.65 0.84 

1965 0.16 3.28 0.86 864.57 100.45 260.87 86.16 25.71 4.34 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Bois de Sioux River above White Rock Dam—Conti

1966 1.60 0.29 889.46 353.57 113.57 41.21 65.05 202.11 25.71 

1967 2.16 1.52 203.10 342.62 217.47 416.20 255.33 32.49 0.73 

1968 0.48 0.04 21.08 48.11 52.14 43.46 6.27 2.38 3.51 

1969 0.66 0.42 0.42 4,426.64 401.78 14.86 66.66 34.66 1.53 

1970 1.96 2.41 19.80 130.98 51.93 230.29 46.47 0.10 0.29 

1971 0.07 2.91 110.40 31.65 10.67 12.81 79.67 0.64 9.34 

1972 3.23 1.36 542.75 290.88 584.07 68.20 55.84 18.31 0.49 

1973 2.28 1.64 106.94 18.62 9.51 4.69 11.24 0.01 0.15 

1974 0.42 0.30 69.03 143.55 62.73 131.27 0.14 0.06 2.59 

1975 0.34 4.13 0.27 980.30 151.56 2,585.83 1,161.80 44.64 3.67 

1976 3.34 204.91 260.23 170.97 24.91 2.00 0.04 0.85 0.03 

1977 0.03 0.24 8.52 15.12 4.45 4.90 3.81 0.20 12.76 

1978 3.95 7.43 611.76 1,257.64 157.64 13.71 236.27 50.58 30.25 

1979 0.82 0.87 0.77 2,605.36 414.34 55.61 70.19 48.89 2.82 

1980 2.00 1.52 122.98 292.65 23.68 4.12 1.19 4.14 0.37 

1981 0.52 12.63 10.76 10.29 2.42 7.95 9.29 1.57 0.05 

1982 0.09 0.79 51.99 384.71 24.18 11.19 30.22 1.35 1.02 

1983 1.03 1.28 112.24 28.52 5.39 21.10 20.28 1.15 8.60 

1984 0.07 371.11 586.16 524.56 65.33 1,253.81 4.51 1.40 0.12 

1985 2.01 1.35 209.19 22.90 19.93 1,539.63 10.39 0.12 4.16 

1986 2.25 2.85 435.19 1,071.08 814.63 742.98 24.85 17.83 170.62 

1987 7.64 30.58 170.46 105.01 41.08 15.93 9.20 0.37 0.08 

1988 0.54 13.97 31.22 7.97 1.20 3.24 4.92 1.42 0.66 

1989 0.36 1.89 4.17 2,417.40 70.48 10.85 3.67 1.34 0.39 

1990 0.36 0.56 9.56 9.47 5.27 69.18 0.10 1.46 0.39 

1991 0.12 0.86 8.60 0.16 25.40 44.45 75.80 5.21 9.93 

1992 0.08 1.09 33.42 33.33 20.82 122.83 113.80 28.90 1.88 

1993 0.73 7.16 255.07 908.63 120.96 252.44 920.74 479.34 107.66 

1994 15.65 56.66 618.26 875.81 267.60 49.52 761.91 44.56 13.60 

1995 8.10 34.71 1,168.96 843.81 472.26 20.85 665.75 69.01 22.11 

1996 6.69 8.58 287.68 1,126.84 1,157.15 190.18 54.66 13.09 1.32 

1997 1.27 1.23 1.27 8,585.81 902.07 424.24 192.17 79.21 46.66 

1998 11.64 210.66 653.89 1,099.19 1,547.86 1,979.57 1,147.07 254.27 104.13 

1999 75.22 549.97 656.59 598.98 475.09 321.08 162.19 167.61 456.05 

2000 28.03 805.40 411.69 238.41 233.10 196.67 303.53 53.42 4.05 

2001 1.46 2.61 2.71 4,300.83 619.80 918.09 117.90 20.46 3.09 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Bois de Sioux River at the mouth

1931 7.02 15.22 33.41 35.70 46.28 30.29 18.16 9.37 12.88 

1932 9.37 10.54 15.21 20.71 14.68 14.59 9.49 7.89 9.11 

1933 5.39 5.85 43.10 13.01 10.97 17.93 5.54 4.27 7.49 

1934 6.42 6.13 6.54 10.01 5.22 4.12 4.00 3.34 2.32 

1935 3.75 2.53 14.91 13.06 15.03 18.42 29.77 6.62 4.03 

1936 6.20 5.83 8.24 16.87 11.92 6.35 3.71 5.72 6.27 

1937 3.54 3.68 5.96 20.87 23.15 51.70 28.11 21.09 36.27 

1938 4.78 8.45 25.55 36.51 78.97 77.52 22.92 7.22 13.84 

1939 27.49 27.84 74.27 69.53 52.66 24.59 13.66 5.37 4.93 

1940 4.14 7.49 11.33 42.21 89.62 39.75 8.27 5.63 6.47 

1941 13.72 24.63 42.08 71.88 88.04 68.97 31.08 12.40 17.39 

1942 0.97 0.18 74.21 93.97 1,373.16 1,417.29 138.90 103.97 166.21 

1943 78.51 128.09 392.73 2,478.32 211.76 820.78 438.97 138.11 15.70 

1944 27.04 7.27 69.31 426.44 728.50 1,746.10 752.04 87.86 68.47 

1945 6.89 43.88 1,046.26 332.48 124.40 272.54 15.49 12.62 35.86 

1946 3.20 26.04 1,041.98 345.98 69.40 111.98 200.83 11.54 76.79 

1947 9.91 8.57 223.28 2,233.29 390.76 379.51 48.68 16.61 15.97 

1948 13.06 11.84 393.84 1,273.85 158.46 146.22 55.17 29.14 61.74 

1949 15.01 0.23 248.93 311.62 84.65 42.07 697.73 31.96 23.35 

1950 10.68 3.81 480.41 1,507.30 1,256.48 67.66 598.63 180.39 64.60 

1951 26.59 13.84 123.58 2,594.84 400.43 281.99 124.62 34.19 14.56 

1952 46.49 44.43 25.89 4,247.03 164.61 241.49 172.94 38.95 71.90 

1953 23.86 44.99 397.90 233.33 249.56 523.42 28.85 107.57 63.85 

1954 33.06 36.00 120.40 72.19 87.52 298.50 60.56 9.15 45.86 

1955 10.89 24.14 90.45 309.50 84.05 100.35 91.38 29.60 66.34 

1956 25.82 49.69 216.05 311.90 113.58 82.59 36.04 149.25 6.16 

1957 11.06 17.34 270.38 401.78 206.10 254.57 55.02 63.03 77.15 

1958 24.38 31.35 138.14 207.28 54.98 26.70 27.69 1.79 70.70 

1959 15.14 62.89 161.98 74.63 127.76 193.18 147.55 7.01 33.94 

1960 32.56 11.02 278.93 619.52 76.67 91.05 21.08 38.62 22.03 

1961 16.39 14.92 144.80 99.04 123.95 59.44 2.69 1.00 41.03 

1962 3.02 5.56 194.63 1,284.07 1,916.28 1,333.64 1,371.93 86.62 86.43 

1963 25.24 21.07 199.94 132.07 124.51 855.11 135.89 23.37 47.11 

1964 27.51 19.82 77.94 429.08 157.89 83.88 19.96 49.73 60.96 

1965 21.21 213.38 56.87 1,427.34 482.29 1,522.54 221.54 44.89 117.71 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Bois de Sioux River at the mouth—Continued

1966 49.75 41.97 1,685.25 426.04 402.55 121.72 37.45 128.28 59.91 

1967 42.24 16.06 460.56 508.68 151.43 402.97 110.33 21.73 15.11 

1968 8.91 11.81 161.18 153.86 120.13 106.04 25.43 28.12 61.71 

1969 51.34 35.60 62.91 4,493.33 398.71 66.31 46.22 22.25 33.84 

1970 47.67 34.36 119.28 353.60 103.77 129.72 35.72 21.13 62.33 

1971 18.74 55.02 485.45 151.61 66.76 132.24 76.16 16.35 42.46 

1972 26.49 7.83 1,089.92 343.59 479.59 307.22 196.24 70.05 31.97 

1973 23.32 23.66 266.49 185.72 122.56 55.47 35.99 29.69 41.63 

1974 69.77 31.14 101.71 99.46 67.73 91.83 25.69 35.72 31.93 

1975 51.27 67.89 125.16 900.43 200.43 408.63 610.03 114.79 27.29 

1976 35.29 53.81 484.62 218.34 59.30 53.92 37.62 31.19 21.10 

1977 57.42 23.34 165.15 157.57 18.99 64.56 23.58 2.73 14.02 

1978 25.47 34.07 1,410.03 3,019.07 198.84 206.95 904.19 55.29 31.08 

1979 6.17 50.89 161.04 3,493.73 208.08 486.77 190.81 41.02 34.71 

1980 60.47 16.45 248.14 408.39 46.78 181.24 20.44 61.72 16.39 

1981 6.47 82.09 31.19 110.59 171.85 120.54 59.31 54.07 11.10 

1982 37.79 19.74 239.73 678.81 49.51 18.93 63.34 22.32 42.94 

1983 38.07 46.93 259.00 118.49 36.94 38.84 65.49 47.21 29.88 

1984 43.01 80.78 963.06 1,027.07 114.55 1,443.12 383.12 84.43 50.88 

1985 19.09 31.57 1,109.43 193.32 190.29 454.43 57.74 63.06 80.16 

1986 81.23 133.50 1,421.68 2,613.83 887.43 370.79 156.28 54.35 786.10 

1987 58.86 124.94 429.48 180.87 116.56 29.41 72.23 117.35 140.51 

1988 117.28 123.86 278.47 136.51 127.94 114.04 43.00 31.84 27.66 

1989 19.35 5.48 666.79 2,406.24 84.14 168.38 93.36 50.83 81.13 

1990 26.33 20.00 76.33 65.53 48.56 73.36 33.50 35.06 30.95 

1991 4.74 102.54 146.06 150.26 206.26 502.75 984.37 72.82 417.76 

1992 43.62 20.54 170.49 131.68 47.14 151.88 92.71 76.31 81.37 

1993 71.65 54.07 548.54 1,298.21 195.54 448.03 2,882.71 978.07 298.81 

1994 50.31 111.14 1,948.11 1,332.42 744.94 107.13 1,231.11 113.20 34.30 

1995 67.07 33.67 3,644.82 1,403.35 516.45 182.20 310.21 52.71 83.95 

1996 90.20 97.48 1,108.99 1,661.71 1,029.42 257.68 32.21 24.91 40.34 

1997 143.77 95.73 413.18 8,184.66 735.67 197.24 146.49 77.25 33.10 

1998 100.00 207.97 827.16 640.88 539.07 611.55 595.69 107.32 52.63 

1999 5.22 5.27 530.95 640.82 390.26 409.08 224.34 284.88 92.25 

2000 0.68 18.70 507.73 1,042.73 161.02 104.66 295.61 28.27 14.47 

2001 0.89 7.76 534.48 4,434.23 2,079.55 1,615.98 1,189.95 127.05 19.52 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Red River of the North at Wahpeton, N. Dak.

1931 22.55 44.35 132.54 178.67 168.10 131.99 72.73 29.62 20.72 

1932 38.16 52.77 138.82 209.72 63.55 37.47 11.16 22.87 12.48 

1933 16.40 18.62 133.73 191.11 81.37 55.53 20.37 3.34 0.19 

1934 15.08 24.08 50.66 107.00 11.65 5.28 7.15 8.61 4.04 

1935 10.89 14.23 350.99 54.00 118.38 89.95 182.26 43.25 12.07 

1936 14.98 7.38 162.52 148.31 94.01 4.66 6.50 15.86 13.59 

1937 10.20 1.38 33.39 345.64 241.43 178.18 113.64 68.31 142.81 

1938 14.32 17.85 227.65 356.52 382.37 304.58 105.59 26.82 65.66 

1939 97.39 104.63 622.05 157.89 207.66 130.53 92.77 18.57 10.15 

1940 12.20 10.62 47.64 519.39 349.47 180.04 20.14 6.05 14.13 

1941 44.99 93.48 241.18 357.82 300.90 432.89 134.37 34.97 89.02 

1942 139.43 109.49 225.24 231.40 1,923.17 2,000.00 368.66 275.12 395.75 

1943 421.81 398.18 712.92 3,391.33 896.81 1,705.07 1,039.19 602.90 412.93 

1944 223.04 159.27 261.02 793.95 1,189.73 2,578.98 1,439.38 454.19 658.20 

1945 412.19 414.61 1,729.45 1,005.96 873.08 926.95 314.62 155.61 175.41 

1946 192.90 153.54 1,497.76 875.04 640.78 461.38 834.47 615.27 575.77 

1947 421.41 350.90 596.65 3,166.99 1,320.67 1,291.31 624.28 239.27 221.89 

1948 161.75 127.04 635.11 1,851.16 806.89 593.76 306.27 239.12 225.94 

1949 84.81 85.93 454.37 571.28 300.53 257.72 1,019.12 213.64 113.94 

1950 98.58 136.21 747.67 2,131.25 2,276.61 951.18 1,297.67 510.93 233.56 

1951 171.34 160.72 361.30 3,513.63 1,070.54 959.07 601.25 368.34 337.35 

1952 530.76 537.21 439.29 5,499.44 998.52 815.39 612.12 440.83 515.04 

1953 190.36 237.69 772.97 678.98 835.07 1,862.22 1,283.83 753.22 674.19 

1954 314.56 336.88 581.49 705.18 931.11 1,234.07 585.66 275.93 304.18 

1955 141.83 172.36 326.17 810.64 453.53 422.08 577.80 452.87 516.63 

1956 205.77 235.28 432.37 990.81 927.21 741.93 321.06 387.06 125.28 

1957 79.66 91.16 530.57 872.22 846.77 879.61 621.19 570.49 564.93 

1958 256.32 272.96 502.20 600.09 291.40 241.02 387.22 259.66 312.40 

1959 185.67 247.79 449.85 388.63 480.71 715.91 578.06 289.73 238.44 

1960 233.90 224.58 531.41 1,217.27 848.14 744.81 429.43 263.38 201.32 

1961 154.75 150.14 353.60 381.38 466.67 443.01 205.96 173.22 145.34 

1962 62.11 119.59 405.72 1,820.56 2,811.66 2,546.55 2,454.01 744.34 639.49 

1963 215.41 201.61 491.80 587.13 572.14 1,546.09 501.79 273.34 291.10 

1964 136.07 164.79 270.50 945.14 943.69 602.60 310.76 271.85 285.97 

1965 171.10 359.87 237.81 2,292.30 1,442.96 2,714.61 1,030.41 505.04 563.69 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Red River of the North at Wahpeton, N. Dak.—Cont

1966 463.22 365.48 2,653.38 1,487.98 1,751.70 1,137.48 615.82 721.16 474.84 

1967 378.00 349.66 977.60 1,363.81 1,211.69 1,428.64 741.96 344.06 215.25 

1968 97.93 141.35 421.91 552.55 679.32 686.41 488.39 351.94 303.13 

1969 247.76 391.51 523.32 5,890.23 1,516.56 888.28 518.24 295.35 155.47 

1970 159.47 165.83 344.32 796.14 795.03 865.71 517.11 226.45 158.83 

1971 120.12 170.59 768.39 623.11 417.69 429.07 512.81 248.43 287.79 

1972 534.62 472.35 1,924.51 1,167.61 1,649.92 1,347.47 891.85 652.13 529.91 

1973 346.84 360.96 790.43 632.50 492.23 349.58 265.16 208.79 229.69 

1974 477.58 478.09 579.29 720.21 1,084.95 1,223.68 708.34 472.71 354.09 

1975 208.67 294.18 443.77 1,767.85 1,230.33 1,523.61 1,587.92 647.33 436.45 

1976 251.12 345.14 958.87 749.26 387.34 241.50 174.20 59.23 37.32 

1977 59.56 35.67 243.22 281.91 94.27 145.46 89.72 64.71 131.85 

1978 373.88 324.81 2,134.34 4,140.55 1,006.47 737.92 1,463.17 301.39 189.95 

1979 78.94 130.80 427.42 4,770.81 1,162.84 1,456.61 990.03 746.31 592.09 

1980 390.64 381.15 767.50 1,131.50 529.45 549.49 201.76 196.41 122.13 

1981 103.11 222.88 215.19 325.65 346.00 282.61 194.92 278.17 141.87 

1982 214.39 262.86 693.34 1,376.84 798.25 737.30 609.22 398.46 294.78 

1983 296.07 320.99 638.02 502.94 349.10 274.79 444.85 445.75 427.25 

1984 278.88 407.12 1,634.15 1,693.55 700.15 2,312.44 839.05 338.91 203.15 

1985 265.26 299.00 1,659.41 807.26 1,163.49 1,768.35 1,157.31 1,100.63 980.58 

1986 670.88 692.97 2,367.32 3,897.67 2,469.74 1,717.60 1,067.29 669.21 1,635.77 

1987 644.22 672.03 1,125.62 863.27 648.60 484.09 368.36 348.56 324.68 

1988 263.24 298.34 621.28 495.60 489.14 338.74 148.80 99.57 94.58 

1989 102.98 133.92 997.70 3,540.42 713.71 749.36 415.27 195.70 241.78 

1990 168.09 172.52 519.49 493.89 556.94 581.97 434.22 278.16 193.82 

1991 95.17 197.46 405.75 551.43 880.40 1,189.57 1,568.76 523.00 772.55 

1992 221.16 247.28 634.77 582.04 478.38 533.51 455.40 405.30 356.02 

1993 260.48 292.09 1,088.61 2,125.20 911.12 1,492.26 4,195.77 1,906.99 1,234.92 

1994 606.09 670.24 3,288.53 2,316.98 1,803.98 908.55 1,840.88 563.70 327.39 

1995 443.69 467.51 4,464.36 2,416.16 1,481.92 923.31 947.37 383.27 353.55 

1996 543.52 547.42 1,985.46 2,727.00 2,215.04 1,299.29 637.53 375.43 250.91 

1997 575.01 593.07 962.01 10,675.49 2,138.52 1,304.71 1,095.38 827.97 617.61 

1998 524.09 886.19 1,474.55 1,520.79 1,374.92 1,397.09 1,761.50 974.05 643.22 

1999 629.47 640.58 1,403.92 1,775.70 1,681.02 1,736.43 1,175.98 1,053.20 921.20 

2000 409.91 516.87 1,362.12 1,874.66 1,025.63 936.60 1,155.54 665.19 459.39 

2001 657.75 616.70 1,218.00 5,703.42 3,389.42 3,107.63 2,266.50 746.09 487.59 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Wild Rice River (N. Dak.) at the mouth

1931 0.01 0.31 1.74 9.33 5.41 2.70 0.26 0.01 0.08 

1932 0.08 0.02 1.95 14.82 6.49 3.65 0.79 0.00 0.00 

1933 0.00 0.47 36.72 16.26 8.37 2.04 0.00 0.00 0.00 

1934 0.00 0.00 0.35 4.10 0.12 1.51 0.40 0.00 0.00 

1935 0.00 0.00 168.88 22.12 14.22 47.24 22.39 5.60 1.12 

1936 0.00 0.00 88.92 61.49 14.55 0.40 0.00 0.00 0.00 

1937 0.00 0.00 0.00 129.95 95.27 23.40 20.15 4.35 2.24 

1938 0.00 0.00 95.22 13.93 37.28 10.44 0.40 0.00 0.00 

1939 0.00 0.00 246.62 50.65 3.59 26.20 26.20 2.07 0.00 

1940 0.00 0.00 0.00 79.18 21.72 2.68 0.00 0.00 0.00 

1941 0.00 0.00 87.48 70.23 21.16 87.32 13.66 5.04 11.15 

1942 0.08 0.00 16.59 73.43 169.49 335.39 84.97 50.49 112.06 

1943 7.35 2.01 257.24 1,954.18 195.01 791.36 395.73 57.65 25.30 

1944 0.56 0.41 22.89 163.68 188.74 272.48 518.88 150.35 96.39 

1945 0.98 1.37 1,112.57 456.20 145.98 176.21 17.69 4.69 2.45 

1946 0.00 0.00 594.44 224.06 30.23 9.19 34.26 2.83 0.13 

1947 1.06 0.27 58.39 792.84 177.32 83.40 24.74 0.68 0.00 

1948 0.00 0.00 4.18 240.21 21.94 7.04 6.25 8.02 0.07 

1949 0.00 0.00 36.05 166.22 27.99 7.98 106.35 14.89 0.00 

1950 0.00 0.00 195.31 899.01 664.74 64.37 8.56 1.94 0.00 

1951 0.00 0.00 16.15 645.31 45.90 30.34 22.17 0.51 1.07 

1952 1.31 0.77 0.55 2,601.15 312.45 25.08 32.91 5.24 0.42 

1953 0.80 1.09 105.51 43.91 305.06 360.14 53.18 7.00 0.22 

1954 0.05 0.30 48.88 45.79 35.60 74.00 54.29 0.53 1.72 

1955 0.21 0.03 25.55 117.67 3.73 1.44 2.16 18.92 0.02 

1956 0.00 0.00 0.00 216.43 40.08 3.29 0.00 4.03 0.00 

1957 0.00 0.00 50.87 105.84 64.93 90.45 53.18 24.18 89.33 

1958 3.03 3.58 41.47 176.51 82.95 18.02 28.88 0.09 0.03 

1959 0.00 0.00 13.16 7.41 3.28 25.97 4.53 0.00 0.00 

1960 0.00 0.00 22.67 228.71 60.45 5.68 3.29 0.10 0.00 

1961 0.00 0.00 23.34 9.49 11.64 1.15 0.00 0.00 0.00 

1962 0.00 0.00 0.00 715.32 814.75 1,039.99 2,000.50 363.38 18.47 

1963 0.19 0.00 47.56 96.22 44.78 507.57 22.73 2.37 0.13 

1964 0.00 0.00 18.14 166.44 103.89 32.02 16.68 1.52 0.75 

1965 0.00 0.00 0.00 809.87 107.25 122.58 88.44 25.52 4.11 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Wild Rice River (N. Dak.) at the mouth—Continu

1966 1.54 0.25 998.10 369.05 120.34 71.20 66.27 212.36 25.52 

1967 2.08 0.81 218.86 358.99 221.32 538.47 270.02 32.46 0.65 

1968 0.45 0.05 21.34 63.92 57.99 29.11 5.99 2.22 3.30 

1969 0.61 0.33 0.38 3,402.95 393.61 85.53 67.95 34.70 1.40 

1970 1.88 1.13 20.02 154.17 57.76 198.93 46.91 0.08 0.00 

1971 0.00 0.00 117.01 44.24 13.10 19.37 81.61 0.58 9.02 

1972 3.15 0.75 600.85 310.88 559.07 163.67 56.65 18.02 0.43 

1973 2.20 0.86 113.25 27.76 11.75 9.83 10.91 0.01 0.13 

1974 0.39 0.26 72.22 167.11 68.96 19.81 0.12 0.05 0.00 

1975 0.00 0.00 0.24 904.43 157.73 423.27 1,280.68 45.00 3.45 

1976 3.25 27.03 282.34 194.87 28.99 0.81 0.04 0.00 0.00 

1977 0.00 0.00 8.42 23.11 5.86 3.77 3.99 0.47 12.60 

1978 3.87 2.53 679.48 1,125.84 163.77 44.60 249.75 51.49 30.08 

1979 1.32 1.09 1.26 2,136.10 405.73 47.36 72.36 50.11 3.25 

1980 2.19 1.08 130.98 312.80 28.04 62.44 1.96 4.60 0.83 

1981 0.74 3.95 10.96 16.74 3.55 10.62 9.11 1.73 0.37 

1982 0.26 0.26 54.23 397.74 28.69 3.04 31.46 2.64 0.98 

1983 1.24 0.98 119.26 40.63 7.33 0.47 21.13 2.16 9.11 

1984 0.32 41.57 650.60 522.31 72.09 141.44 5.38 2.41 0.92 

1985 2.20 1.01 225.93 33.61 23.95 222.79 11.21 1.38 4.63 

1986 2.40 1.49 479.14 977.92 764.10 75.93 25.14 17.87 178.78 

1987 7.80 7.12 183.04 127.19 46.69 13.13 9.90 1.30 0.76 

1988 0.13 0.13 32.12 13.32 1.81 0.32 5.41 2.21 0.46 

1989 0.09 0.09 4.13 1,999.61 78.20 41.99 3.13 2.02 0.84 

1990 0.04 0.04 9.52 16.52 8.98 1.12 0.63 0.80 0.54 

1991 0.04 0.04 8.54 3.14 30.42 14.36 77.84 5.22 11.00 

1992 0.11 0.67 34.32 49.47 25.83 255.54 117.90 29.00 2.59 

1993 0.03 2.49 276.62 847.61 128.43 170.98 1,010.26 517.46 111.21 

1994 15.95 10.81 686.92 820.29 270.76 38.48 830.65 45.17 13.89 

1995 7.98 7.47 1,321.46 793.82 459.94 160.66 723.36 70.65 23.05 

1996 6.68 2.82 313.55 1,022.56 1,064.19 377.28 55.69 12.09 0.54 

1997 1.23 0.72 1.22 6,093.71 840.97 210.94 201.03 80.56 46.55 

1998 11.78 230.40 727.61 1,000.89 1,394.89 705.63 1,263.91 268.82 108.07 

1999 80.00 54.73 730.71 587.16 461.19 307.12 169.69 175.43 490.15 

2000 29.02 71.87 452.35 261.02 236.35 141.12 323.08 54.55 4.02 

2001 1.40 1.22 2.62 3,317.82 591.24 182.55 122.76 20.72 3.21 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Red River of the North at Fargo, N. Dak.

1931 21.10 39.30 128.00 190.40 167.60 132.00 64.80 20.80 15.60 

1932 36.10 47.30 134.90 231.80 55.60 33.20 7.73 0.00 8.78 

1933 0.00 0.18 129.30 206.80 73.60 51.10 15.30 1.59 0.08 

1934 14.00 20.50 43.00 102.10 8.12 3.31 0.00 0.00 0.00 

1935 0.00 11.70 386.30 151.50 112.60 86.70 183.70 32.50 8.45 

1936 13.90 5.81 161.30 428.00 86.70 2.87 0.00 0.00 0.00 

1937 4.40 0.97 26.80 444.60 252.70 183.40 107.50 55.70 139.30 

1938 5.34 14.90 236.40 163.60 425.70 330.10 98.90 18.50 57.70 

1939 93.90 98.10 739.30 705.60 213.00 130.40 85.40 12.00 0.00 

1940 1.08 8.57 40.10 446.60 384.40 185.50 15.10 3.20 0.00 

1941 42.75 87.05 252.45 644.35 324.45 485.35 130.05 25.35 81.55 

1942 84.25 87.25 226.12 374.18 2,201.27 2,387.10 423.36 353.32 527.75 

1943 325.87 343.84 764.67 7,403.48 1,087.96 2,690.22 1,735.34 811.85 438.28 

1944 229.44 170.67 321.52 1,021.35 1,424.93 2,750.18 2,072.58 724.69 813.20 

1945 438.04 428.26 3,293.70 1,544.21 1,035.13 1,117.90 385.27 164.66 169.36 

1946 190.30 139.14 2,224.96 1,109.34 676.38 519.58 824.27 606.57 578.57 

1947 422.36 345.05 623.70 4,683.34 1,575.02 1,416.66 690.63 255.32 216.94 

1948 153.65 115.54 595.11 2,378.56 1,023.29 674.26 324.87 240.22 219.24 

1949 80.76 86.98 393.42 883.13 334.28 257.97 1,163.77 245.69 110.69 

1950 99.48 137.91 828.87 4,460.75 4,025.11 1,261.68 1,293.17 604.33 236.16 

1951 170.14 166.62 375.80 4,539.23 1,168.14 1,010.67 641.75 386.14 347.55 

1952 535.86 537.71 504.99 9,595.14 1,272.22 871.09 1,136.62 458.53 517.54 

1953 162.66 228.99 910.07 828.38 1,332.87 3,475.02 1,476.63 797.12 678.59 

1954 295.86 331.58 651.89 892.08 1,024.21 1,383.97 767.06 309.73 310.78 

1955 119.23 173.56 337.27 1,131.14 499.73 439.28 774.40 464.87 524.23 

1956 197.67 240.58 424.67 1,554.71 950.71 874.63 369.36 381.36 121.68 

1957 62.26 83.16 542.57 1,103.52 878.97 926.01 730.69 624.49 732.03 

1958 264.52 295.76 593.40 795.09 412.40 265.22 820.22 260.86 308.10 

1959 172.87 247.19 500.35 427.83 484.51 841.11 683.06 293.73 242.84 

1960 210.40 205.68 498.81 1,810.67 936.14 784.71 493.53 263.68 199.72 

1961 142.75 141.44 478.30 414.78 508.47 444.91 195.46 178.22 121.34 

1962 56.71 105.39 360.32 3,412.36 4,237.46 4,996.35 5,392.81 1,455.14 740.39 

1963 195.11 161.31 517.90 760.43 695.74 2,354.29 553.39 309.94 284.10 

1964 127.47 176.69 285.50 1,354.24 1,110.39 740.70 407.26 289.85 282.57 

1965 170.90 364.17 223.01 4,247.30 1,604.96 2,979.61 1,319.41 630.04 652.89 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Red River of the North at Fargo, N. Dak.—Contin

1966 460.52 417.58 4,764.38 2,270.98 1,993.70 1,282.48 787.62 1,104.36 540.44 

1967 422.97 378.73 1,228.87 2,231.98 1,536.86 2,335.81 1,085.63 384.13 194.42 

1968 104.61 144.43 496.09 649.63 792.70 751.49 504.77 357.12 307.91 

1969 269.15 315.80 486.61 11,386.72 2,493.05 1,062.77 685.83 308.24 148.76 

1970 164.11 169.17 348.46 1,202.58 886.17 1,265.35 576.35 232.39 155.07 

1971 150.50 186.27 933.07 762.29 449.97 478.75 776.59 246.91 389.37 

1972 523.32 436.05 3,128.91 1,719.01 2,159.32 1,617.87 1,028.35 753.73 543.21 

1973 412.69 475.81 1,010.88 659.65 493.58 365.13 302.71 236.14 269.34 

1974 540.33 532.34 789.14 1,380.86 1,168.20 1,243.93 746.89 505.96 358.94 

1975 227.80 330.91 509.60 3,729.68 1,481.16 2,689.44 5,197.75 788.86 526.18 

1976 251.14 290.86 1,015.29 1,079.78 414.49 266.33 172.26 56.85 63.52 

1977 80.81 51.93 259.38 353.07 164.56 162.01 116.08 46.40 177.52 

1978 400.79 339.85 2,083.31 7,970.44 1,080.95 787.18 1,552.86 405.81 215.84 

1979 73.29 121.55 369.28 8,294.35 1,762.64 1,632.32 1,230.48 935.24 627.27 

1980 366.70 352.72 727.74 1,994.54 553.79 597.57 181.11 199.04 122.77 

1981 88.95 213.44 236.83 372.37 513.25 310.16 236.47 330.69 139.32 

1982 212.39 255.27 819.87 2,608.28 841.19 825.82 682.55 421.10 311.99 

1983 267.85 301.36 802.55 704.45 424.44 294.23 695.05 405.33 449.40 

1984 269.45 411.19 2,096.71 3,280.03 892.31 2,456.69 1,005.76 372.47 247.60 

1985 253.90 323.69 1,937.38 958.59 1,211.09 2,185.75 1,355.72 1,150.40 1,095.59 

1986 736.99 695.85 2,604.38 6,661.71 3,977.11 1,817.29 1,417.97 802.65 1,913.00 

1987 741.24 766.81 1,585.58 1,068.21 737.38 504.97 375.71 319.34 294.73 

1988 258.72 288.38 700.44 588.03 510.39 341.34 135.34 89.08 96.06 

1989 81.72 119.04 715.96 6,907.51 754.02 889.51 428.92 208.93 255.76 

1990 141.04 155.76 364.85 570.16 591.46 652.08 449.97 278.89 218.32 

1991 89.22 190.47 412.65 662.92 1,057.14 1,285.68 1,741.09 586.20 725.52 

1992 239.13 293.21 797.04 591.29 513.89 982.13 556.33 478.22 408.53 

1993 287.33 341.37 946.03 4,033.88 1,143.69 1,818.55 5,532.29 2,708.49 1,369.40 

1994 653.96 797.38 4,078.65 4,725.46 2,289.98 1,146.79 2,802.67 781.76 353.48 

1995 464.52 468.56 6,561.70 4,189.89 2,068.95 1,295.75 1,830.51 534.21 367.11 

1996 525.35 576.00 2,458.97 4,842.32 3,726.30 1,836.80 797.45 423.39 254.53 

1997 582.53 561.27 986.47 19,883.28 4,161.58 1,942.97 1,493.42 915.32 681.26 

1998 624.14 1,378.68 3,464.66 2,839.68 3,786.19 2,526.71 4,063.06 1,373.71 794.42 

1999 711.36 711.20 2,541.92 2,761.80 2,489.73 2,198.69 1,499.28 1,340.41 1,626.61 

2000 449.34 508.55 2,327.91 2,374.21 1,425.41 1,764.90 1,716.15 814.33 595.07 

2001 724.86 700.28 1,240.74 10,524.71 4,623.31 3,495.45 2,451.04 1,002.77 614.90 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Sheyenne River above Harvey, N. Dak.

1931 1.00 4.01 8.02 14.94 3.98 5.53 1.47 1.02 0.86 

1932 2.00 1.63 14.65 36.08 6.78 6.04 2.80 1.43 0.99 

1933 1.25 1.23 27.21 26.29 8.33 3.21 1.86 0.83 0.57 

1934 0.78 1.07 4.26 13.14 2.65 1.19 0.69 0.45 0.42 

1935 0.71 1.20 7.78 11.69 5.01 4.38 5.10 6.43 1.61 

1936 1.26 1.15 3.48 20.20 9.42 2.59 1.07 0.35 0.39 

1937 0.61 0.43 2.40 12.79 4.79 4.86 1.73 1.05 1.00 

1938 0.94 1.01 6.13 7.61 3.33 1.86 0.91 0.60 0.01 

1939 0.03 0.04 6.25 10.53 1.46 1.01 0.11 0.00 0.00 

1940 0.00 0.00 0.00 15.89 4.30 0.59 0.02 0.12 0.00 

1941 0.00 0.00 6.28 88.05 8.11 9.14 4.14 1.25 3.08 

1942 0.44 0.56 2.47 68.09 16.56 11.29 3.86 3.43 3.16 

1943 1.03 2.16 43.42 83.52 12.95 28.20 9.08 2.75 0.55 

1944 0.42 0.49 1.44 10.07 5.13 11.15 4.34 5.16 6.93 

1945 1.12 1.34 41.39 15.52 6.32 5.50 1.84 1.79 0.84 

1946 0.09 0.00 20.76 6.41 1.02 0.17 1.99 0.01 0.00 

1947 0.00 0.00 21.39 13.96 3.41 6.29 6.01 0.32 0.15 

1948 0.10 0.00 0.18 187.90 25.87 2.86 1.05 0.21 0.00 

1949 0.00 0.00 0.26 147.64 6.80 6.03 1.02 0.00 0.00 

1950 0.00 0.00 3.06 289.91 177.45 27.10 4.36 0.24 0.11 

1951 1.60 0.72 1.93 111.85 19.86 34.96 3.97 0.90 2.50 

1952 0.00 0.00 5.28 102.01 9.36 2.82 5.78 0.03 0.00 

1953 0.00 0.00 6.18 6.84 11.04 7.64 2.75 0.00 0.00 

1954 0.05 8.05 4.65 7.55 2.83 76.10 23.84 4.79 5.05 

1955 0.19 0.00 16.20 28.99 9.62 12.18 2.01 0.07 0.00 

1956 0.11 0.00 11.27 76.59 17.22 20.22 2.82 0.46 0.53 

1957 0.15 0.00 5.39 4.25 4.27 2.39 1.58 1.05 2.11 

1958 0.64 3.57 7.15 4.97 2.38 2.07 6.94 0.10 0.44 

1959 0.00 0.00 6.50 2.99 2.58 1.13 0.41 0.00 0.19 

1960 0.32 0.00 30.60 5.76 6.69 3.40 0.18 0.92 0.74 

1961 0.04 0.19 1.80 3.09 1.64 0.30 0.07 0.03 0.56 

1962 0.00 0.00 14.20 3.21 6.54 5.56 5.78 0.76 0.68 

1963 0.05 0.00 2.87 3.79 4.37 6.73 1.58 0.98 0.31 

1964 0.01 0.03 0.08 10.00 3.42 8.30 2.55 0.95 1.76 

1965 0.00 0.00 3.38 26.70 5.49 1.82 4.02 0.99 2.55 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Sheyenne River above Harvey, N. Dak.—Continu

1966 0.00 0.00 61.40 4.89 3.43 3.01 9.32 1.07 0.46 

1967 0.00 0.00 36.20 28.90 28.70 2.49 0.56 0.00 0.17 

1968 0.01 0.05 10.30 4.07 5.75 1.65 1.11 2.01 2.02 

1969 0.00 0.00 0.00 101.00 15.20 2.52 3.04 1.33 0.92 

1970 0.34 0.20 0.63 19.80 14.80 7.41 3.81 1.64 1.39 

1971 0.16 0.20 6.14 90.50 14.30 54.00 9.01 1.84 1.34 

1972 0.00 0.00 61.20 25.80 13.90 3.09 1.09 0.81 0.71 

1973 2.32 5.86 6.15 5.11 2.25 1.81 0.78 0.72 1.09 

1974 0.00 0.90 15.60 22.40 54.40 17.50 0.76 0.37 0.94 

1975 0.18 0.43 13.20 72.50 50.20 14.60 18.70 1.04 1.75 

1976 0.42 2.04 71.10 49.80 8.64 1.78 0.42 0.07 0.06 

1977 0.00 0.00 3.73 2.66 1.59 0.87 1.02 0.80 4.79 

1978 0.25 0.34 34.80 15.90 7.76 3.71 2.94 0.33 0.60 

1979 0.30 0.37 0.69 74.30 41.70 9.32 13.60 4.67 1.08 

1980 0.94 0.50 9.27 19.10 3.55 2.15 1.29 6.64 3.90 

1981 0.00 12.90 36.90 13.90 7.02 17.10 5.22 1.61 3.57 

1982 0.15 19.10 123.00 98.70 25.80 17.60 43.40 5.35 0.73 

1983 4.10 26.80 111.00 54.70 28.60 8.43 3.48 1.60 1.66 

1984 3.19 6.68 44.80 93.40 62.10 18.10 3.34 3.24 4.29 

1985 0.00 7.61 24.80 25.20 9.96 4.22 5.70 25.60 4.39 

1986 0.56 3.45 81.40 45.90 24.90 6.07 2.81 1.73 2.53 

1987 1.29 3.01 48.50 41.80 13.20 10.40 41.00 5.71 2.24 

1988 0.01 0.77 9.09 3.79 2.35 1.63 0.93 1.32 0.73 

1989 0.00 0.00 13.50 10.50 2.04 1.84 1.06 1.22 1.84 

1990 1.13 1.08 2.25 2.90 2.83 5.06 6.29 0.92 1.48 

1991 1.05 1.61 3.33 2.13 2.65 1.12 1.03 1.08 2.46 

1992 0.48 3.75 11.50 3.05 2.15 1.40 1.51 0.76 1.68 

1993 0.13 0.45 27.20 7.69 4.84 12.70 58.90 22.50 4.68 

1994 0.32 0.14 54.80 34.20 9.24 10.90 4.19 1.84 2.57 

1995 3.11 0.64 145.80 108.90 116.70 27.30 14.80 4.34 1.99 

1996 0.00 0.00 36.00 165.80 51.00 15.80 6.75 4.18 1.86 

1997 3.10 2.82 43.70 324.40 88.30 18.40 14.70 3.25 1.16 

1998 3.10 13.20 95.90 77.10 18.10 7.33 5.53 0.92 3.03 

1999 6.37 4.88 82.80 107.50 112.30 37.70 19.10 59.40 48.40 

2000 6.73 18.50 39.30 20.80 26.80 77.30 67.40 23.50 16.30 

2001 2.88 2.43 207.00 133.00 37.70 50.50 46.50 10.90 3.02 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Sheyenne River near Warwick, N. Dak.

1931 3.89 15.54 34.19 63.69 20.24 28.08 7.46 5.19 4.38 

1932 7.74 6.31 62.46 153.81 34.42 30.67 14.23 7.27 5.05 

1933 4.86 4.77 115.99 112.06 42.29 16.31 9.42 4.23 2.87 

1934 3.04 4.13 18.17 56.01 13.44 6.03 3.52 2.31 2.14 

1935 2.76 4.65 33.18 49.82 25.43 22.27 25.91 32.65 8.18 

1936 4.89 4.46 14.82 86.10 47.86 13.16 5.43 1.78 2.00 

1937 2.36 1.66 10.21 54.51 24.35 24.69 8.78 5.31 5.09 

1938 3.64 3.92 26.15 32.46 16.94 9.42 4.62 9.83 4.02 

1939 3.46 3.07 29.31 72.23 14.76 13.30 6.39 2.70 2.17 

1940 1.93 1.73 1.89 58.64 29.04 10.55 3.54 2.63 2.07 

1941 3.83 3.83 9.01 289.70 55.11 52.31 27.05 11.53 12.68 

1942 7.35 6.86 12.95 185.40 97.04 71.35 26.29 18.47 26.12 

1943 10.08 11.08 75.13 462.18 88.77 183.92 65.01 31.57 15.05 

1944 8.32 9.65 10.88 62.01 62.55 59.97 43.63 39.44 44.35 

1945 5.17 6.46 253.03 80.17 46.29 38.83 11.72 5.07 6.04 

1946 6.10 2.40 231.74 186.02 31.31 14.26 36.64 20.12 7.69 

1947 5.00 2.88 95.20 260.55 39.48 38.12 17.34 8.58 3.18 

1948 6.85 3.49 4.24 1,114.85 366.38 41.02 27.70 15.74 1.63 

1949 3.62 3.00 13.90 715.26 82.86 43.86 32.97 14.56 1.69 

1950 1.50 1.50 12.30 1,421.00 854.00 98.80 30.00 8.23 6.08 

1951 10.60 6.68 21.70 440.00 90.50 70.10 21.50 2.68 11.60 

1952 2.03 3.24 6.23 284.00 43.40 6.13 44.90 3.55 1.37 

1953 2.35 2.57 13.30 38.50 60.30 61.20 64.40 3.06 2.07 

1954 3.61 34.80 79.00 64.10 30.90 326.00 170.00 48.30 38.30 

1955 3.14 2.43 40.40 333.00 65.40 77.50 23.60 4.48 2.11 

1956 1.51 1.88 2.19 631.00 100.00 189.00 19.00 3.93 9.56 

1957 2.62 1.30 43.30 51.30 36.40 21.10 24.50 25.80 63.00 

1958 9.23 8.21 38.70 62.10 20.90 16.00 61.50 4.84 1.42 

1959 3.62 2.96 49.04 35.70 24.40 9.42 3.07 1.61 1.51 

1960 3.23 2.29 22.14 392.50 97.90 63.90 13.10 4.96 1.75 

1961 1.14 1.43 23.64 32.00 14.20 2.25 1.95 0.59 1.42 

1962 1.98 1.77 23.54 123.50 59.90 84.90 23.20 16.30 7.31 

1963 2.56 1.99 17.54 32.50 22.90 23.50 7.45 4.07 2.42 

1964 1.49 1.73 1.90 89.10 33.30 58.70 24.50 5.89 12.41 

1965 2.46 3.53 12.74 271.50 39.20 17.50 123.50 57.70 24.91 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Sheyenne River near Warwick, N. Dak.—Continu

1966 3.69 2.67 650.44 136.50 89.30 28.90 51.60 18.90 7.37 

1967 4.06 5.21 197.44 212.50 140.50 30.00 10.90 1.93 2.28 

1968 2.67 3.01 91.74 27.40 31.90 13.60 6.15 6.37 13.31 

1969 3.00 2.64 2.81 1,022.81 85.83 27.51 25.32 25.01 6.56 

1970 4.06 4.04 15.04 179.81 108.83 59.51 14.52 28.61 5.51 

1971 3.60 2.57 5.05 675.81 67.43 164.81 80.72 7.86 19.01 

1972 4.53 3.56 326.44 151.81 78.93 35.11 4.00 2.97 2.63 

1973 2.81 2.35 73.34 26.31 20.93 7.47 2.68 2.89 3.96 

1974 2.67 2.95 15.74 464.81 489.83 89.91 10.87 1.91 1.60 

1975 7.77 7.77 53.42 562.88 370.87 69.40 47.49 8.40 10.07 

1976 5.21 11.00 297.00 281.20 65.78 19.75 5.36 2.83 3.01 

1977 3.68 3.83 15.76 16.18 12.93 2.64 1.80 1.80 2.23 

1978 4.68 2.73 30.81 348.32 21.81 15.62 14.21 12.51 2.83 

1979 7.12 4.79 5.91 701.12 289.07 56.27 117.03 52.03 8.33 

1980 4.69 4.44 26.33 176.03 21.79 36.05 5.91 21.85 42.16 

1981 12.33 154.03 165.05 71.65 53.77 135.05 40.68 19.83 28.09 

1982 5.88 3.94 154.05 609.05 134.09 92.16 159.28 42.41 11.13 

1983 26.33 55.93 793.15 309.15 105.14 45.30 21.73 5.71 8.55 

1984 4.33 26.63 248.24 267.24 190.19 44.45 4.62 2.76 2.10 

1985 3.68 4.12 250.04 39.94 29.55 29.11 7.45 80.62 44.80 

1986 8.48 7.82 423.54 250.84 132.95 14.60 22.71 32.60 28.48 

1987 13.42 16.42 216.14 545.54 53.29 19.12 142.95 60.97 17.47 

1988 6.08 8.36 65.57 49.37 25.14 11.90 1.39 1.38 3.16 

1989 4.20 3.82 4.76 186.82 23.49 5.09 1.00 0.95 1.22 

1990 0.86 1.14 5.98 25.44 10.94 27.19 9.44 4.37 2.70 

1991 2.04 3.04 11.03 17.53 34.99 24.27 32.47 15.12 22.57 

1992 7.69 14.06 346.53 39.43 22.78 5.27 2.56 1.27 1.40 

1993 3.37 3.33 82.99 182.59 50.03 21.13 299.57 423.77 38.17 

1994 11.12 10.27 340.32 199.22 79.37 163.64 53.95 10.99 12.02 

1995 22.70 15.90 696.65 479.84 283.14 91.62 89.12 53.78 12.34 

1996 9.02 7.77 143.87 1,165.20 302.55 103.65 56.11 33.31 13.41 

1997 7.99 7.13 35.35 1,794.34 414.29 61.99 104.46 34.97 18.67 

1998 9.60 58.87 406.41 355.01 72.02 44.72 21.96 6.54 7.46 

1999 10.15 11.28 205.36 1,106.26 518.50 191.11 182.07 196.77 125.58 

2000 16.78 24.98 111.11 110.11 106.09 321.09 441.07 148.06 154.07 

2001 55.31 45.51 122.15 1,106.15 277.12 258.11 205.10 135.11 52.21 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Sheyenne River near Cooperstown, N. Dak.

1931 6.01 24.05 54.54 101.60 34.16 47.40 12.60 8.76 7.39 

1932 11.98 9.77 99.65 245.37 58.10 51.76 24.02 12.27 8.52 

1933 7.51 7.37 185.04 178.76 71.38 27.54 15.91 7.15 4.85 

1934 4.70 6.39 28.99 89.36 22.69 10.17 5.94 3.89 3.61 

1935 4.27 7.19 52.94 79.48 42.92 37.59 43.73 55.11 13.81 

1936 7.56 6.90 23.64 137.36 80.79 22.21 9.17 3.01 3.38 

1937 3.65 2.57 16.30 86.96 41.10 41.67 14.82 8.96 8.60 

1938 5.64 6.06 41.72 28.55 15.85 5.02 7.79 5.15 0.08 

1939 0.16 0.21 42.66 71.84 12.57 8.70 0.98 0.02 0.01 

1940 0.00 0.00 0.00 108.38 36.95 5.07 0.19 1.03 0.04 

1941 0.00 0.00 42.85 600.52 69.72 78.66 35.64 10.73 26.46 

1942 2.62 3.39 16.82 464.41 142.43 97.14 33.19 29.50 27.17 

1943 6.21 12.99 296.16 569.64 111.44 242.54 78.07 23.66 4.77 

1944 2.51 2.94 9.83 68.68 44.16 95.94 37.30 44.40 59.59 

1945 8.00 10.00 404.00 128.00 78.20 65.60 19.80 8.57 10.20 

1946 9.44 3.71 370.00 297.00 52.90 24.10 61.90 34.00 13.00 

1947 7.74 4.46 152.00 416.00 66.70 64.40 29.30 14.50 5.38 

1948 10.60 5.41 6.77 1,780.00 619.00 69.30 46.80 26.60 2.76 

1949 5.61 4.64 22.20 1,142.00 140.00 74.10 55.70 24.60 2.85 

1950 12.90 8.61 53.70 2,293.00 1,953.00 273.00 80.40 24.60 25.40 

1951 20.80 17.90 83.60 650.00 173.00 91.40 35.00 11.20 31.80 

1952 11.60 10.60 44.30 447.00 80.00 32.00 85.60 12.10 6.26 

1953 6.23 7.71 18.30 62.80 73.30 123.00 132.00 8.74 2.38 

1954 7.68 48.20 122.00 117.00 51.36 313.03 213.25 65.70 47.42 

1955 8.58 7.84 27.60 439.00 96.56 171.03 46.15 6.65 0.98 

1956 4.66 4.00 4.81 678.00 243.06 280.03 51.55 13.10 18.42 

1957 9.87 7.43 75.40 109.00 75.16 45.33 47.55 36.90 155.12 

1958 17.80 15.80 48.10 127.00 45.96 38.03 108.25 13.00 2.47 

1959 3.72 1.95 37.34 130.50 42.66 24.83 11.15 1.55 0.83 

1960 5.50 4.21 53.24 616.60 101.96 121.93 32.55 8.90 5.07 

1961 4.05 1.08 51.74 79.50 37.86 7.19 4.59 1.38 1.53 

1962 4.51 2.83 25.14 361.00 108.76 189.73 49.85 27.10 12.73 

1963 4.42 0.47 33.24 95.10 39.56 30.53 28.85 3.37 3.50 

1964 2.36 1.69 2.58 162.30 62.96 237.23 102.05 28.40 41.73 

1965 9.54 7.96 10.44 926.00 147.06 100.13 91.85 154.10 55.83 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Sheyenne River near Cooperstown, N. Dak.—Conti

1966 14.42 8.12 1,022.44 385.80 236.76 155.03 189.15 108.60 28.63 

1967 11.62 12.27 237.34 891.60 314.16 95.83 39.75 8.72 6.04 

1968 9.17 8.00 169.64 126.40 79.46 81.83 24.65 15.30 25.43 

1969 9.19 8.90 8.28 1,867.81 264.59 98.44 89.57 40.11 33.03 

1970 16.02 12.17 32.74 521.51 266.29 185.54 40.37 40.51 20.03 

1971 9.95 9.33 44.24 993.11 170.89 220.04 160.57 27.11 33.33 

1972 10.52 7.53 462.44 479.31 267.49 131.54 22.77 16.71 8.62 

1973 12.22 9.27 143.24 74.31 48.99 31.94 7.74 3.06 18.13 

1974 8.17 6.31 10.74 1,111.81 660.79 436.04 43.27 17.91 6.12 

1975 14.12 16.02 106.22 716.88 671.87 170.20 97.41 19.93 13.01 

1976 11.70 12.10 196.30 597.60 117.18 40.25 18.49 4.65 2.33 

1977 3.46 3.87 22.26 59.58 39.64 11.64 10.60 1.81 4.09 

1978 8.83 5.38 91.61 708.22 94.24 50.97 22.48 22.29 31.40 

1979 6.84 6.53 6.18 1,322.12 949.19 127.58 187.14 69.31 21.58 

1980 11.23 10.53 43.33 283.53 57.51 53.46 15.52 8.37 50.79 

1981 15.53 74.73 303.55 127.85 73.77 149.45 87.51 29.86 26.21 

1982 8.87 4.64 104.55 875.55 214.59 165.96 195.70 61.72 17.14 

1983 28.93 26.93 1,094.15 542.35 176.66 161.61 121.32 115.31 97.69 

1984 25.53 16.63 354.74 771.14 328.67 115.22 42.22 9.90 1.52 

1985 5.08 5.54 299.64 128.84 105.26 80.31 18.79 17.76 57.12 

1986 20.23 10.73 501.04 421.24 298.85 49.10 72.05 42.43 24.50 

1987 23.22 28.32 248.34 1,603.44 141.90 94.32 230.38 214.39 53.79 

1988 16.87 17.97 154.97 183.37 72.74 29.70 25.04 9.05 2.34 

1989 2.95 7.91 11.52 305.72 68.59 38.15 8.74 2.45 7.58 

1990 6.55 6.18 8.37 70.04 39.00 77.31 41.88 14.46 7.15 

1991 3.61 9.06 23.03 42.93 62.29 30.47 45.98 10.93 15.48 

1992 13.26 19.96 517.33 96.93 64.48 39.52 81.66 16.02 9.12 

1993 9.23 9.73 43.79 397.99 126.03 74.03 640.57 1,033.37 220.77 

1994 31.82 31.62 426.52 686.52 179.77 319.14 315.45 108.69 321.52 

1995 68.40 64.60 1,381.25 1,244.24 533.74 223.02 205.62 118.38 51.54 

1996 34.19 33.19 116.57 2,623.20 578.75 252.75 203.61 107.91 35.71 

1997 31.57 26.67 41.45 2,390.34 1,153.29 202.49 213.46 101.87 47.37 

1998 31.17 112.57 329.51 741.21 209.82 119.52 76.76 26.16 17.86 

1999 21.08 22.28 191.16 1,940.26 820.80 480.51 409.37 263.07 224.88 

2000 31.48 45.88 180.11 154.11 146.09 873.09 722.08 251.07 287.07 

2001 66.31 50.91 126.15 1,892.15 574.12 417.11 310.10 365.11 68.21 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for Baldhill Creek at the mouth

1931 2.24 8.98 18.99 35.38 10.47 14.53 3.86 2.69 2.26 

1932 4.47 3.65 34.70 85.44 17.81 15.87 7.36 3.76 2.61 

1933 2.81 2.75 64.43 62.25 21.88 8.44 4.88 2.19 1.49 

1934 1.75 2.38 10.09 31.12 6.96 3.12 1.82 1.19 1.11 

1935 1.60 2.68 18.43 27.67 13.16 11.52 13.40 16.89 4.23 

1936 2.82 2.58 8.23 47.83 24.76 6.81 2.81 0.92 1.04 

1937 1.36 0.96 5.67 30.28 12.60 12.77 4.54 2.75 2.64 

1938 2.10 2.26 14.53 9.89 4.83 1.53 2.39 1.57 0.02 

1939 0.06 0.08 14.78 24.88 3.83 2.65 0.30 0.01 0.00 

1940 0.00 0.00 0.00 37.54 11.26 1.54 0.06 0.31 0.01 

1941 0.00 0.00 14.84 207.99 21.24 23.97 10.86 3.27 8.06 

1942 0.97 1.26 5.83 160.85 43.40 29.60 10.11 8.99 8.28 

1943 2.31 4.83 102.58 197.30 33.95 73.90 23.79 7.21 1.45 

1944 0.93 1.09 3.40 23.79 13.45 29.23 11.37 13.53 18.16 

1945 2.74 3.35 118.91 40.52 20.20 17.21 5.43 3.65 2.65 

1946 2.97 1.30 109.09 93.05 14.43 7.02 13.63 9.42 3.83 

1947 3.28 1.87 51.55 140.85 18.08 18.46 7.69 3.37 0.96 

1948 2.96 1.61 4.67 535.16 181.54 19.48 12.08 7.73 1.37 

1949 1.80 1.73 12.65 334.77 38.42 20.65 17.57 3.17 0.27 

1950 1.04 0.94 7.61 629.55 407.83 41.11 12.20 3.17 3.29 

1951 2.48 2.17 12.58 107.85 20.70 10.65 4.74 1.29 4.25 

1952 0.87 1.19 6.11 63.71 7.99 2.90 13.11 1.42 0.67 

1953 0.28 0.83 2.24 4.08 7.18 15.40 21.52 0.98 0.23 

1954 0.41 6.67 19.33 9.72 4.63 48.78 36.98 9.66 6.68 

1955 0.50 0.84 3.57 62.16 10.07 23.16 6.45 0.69 0.07 

1956 0.17 0.39 0.49 131.99 13.72 12.02 3.68 1.98 2.09 

1957 0.76 0.00 8.78 10.74 10.12 6.03 9.80 6.55 66.33 

1958 2.11 2.42 5.19 14.09 8.10 9.75 13.38 2.44 1.45 

1959 0.00 0.00 8.80 7.80 7.76 6.59 3.76 1.70 1.42 

1960 0.02 0.00 36.02 94.96 8.30 8.13 2.10 2.62 2.39 

1961 0.15 0.04 10.97 8.36 6.11 1.03 0.99 1.02 2.20 

1962 0.11 0.11 28.63 52.35 16.21 20.41 16.10 2.87 3.24 

1963 0.10 0.00 2.71 11.15 6.41 4.44 2.01 1.13 1.13 

1964 0.25 0.22 0.66 15.21 6.80 19.95 13.38 5.19 5.14 

1965 0.48 0.46 2.48 277.73 22.11 10.03 13.38 7.71 9.00 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for Baldhill Creek at the mouth—Continued

1966 0.27 0.10 183.22 32.10 29.82 25.85 22.34 6.77 3.25 

1967 1.35 0.92 108.05 111.63 46.26 20.07 8.28 4.04 1.64 

1968 0.62 0.61 22.37 15.88 19.61 35.83 12.59 5.53 4.58 

1969 0.30 0.68 2.38 509.94 32.31 23.36 13.27 1.98 3.97 

1970 1.99 2.22 14.21 48.88 29.93 57.37 12.36 6.95 7.78 

1971 0.35 1.00 35.79 97.98 15.31 25.06 10.28 1.94 3.13 

1972 1.53 0.21 74.05 89.26 38.21 15.42 2.91 3.13 2.20 

1973 0.90 1.89 26.17 8.08 6.72 3.23 0.70 1.07 3.37 

1974 0.44 0.81 2.68 260.51 42.40 18.71 2.53 2.17 1.63 

1975 1.72 0.75 10.63 165.77 43.65 23.70 40.48 3.07 3.20 

1976 1.13 4.06 85.90 37.69 8.61 2.73 1.33 0.10 0.15 

1977 0.09 0.46 6.42 7.62 3.53 1.77 1.85 0.97 3.73 

1978 0.81 0.20 66.89 93.62 13.61 3.80 0.93 0.92 0.84 

1979 0.16 0.11 1.45 731.19 92.97 10.83 3.15 2.21 1.04 

1980 1.03 0.49 17.23 33.00 3.05 2.09 0.27 2.25 1.27 

1981 0.89 2.58 3.26 2.73 1.94 2.53 0.50 0.64 0.57 

1982 0.53 1.79 75.50 83.89 11.79 7.35 5.17 1.08 0.69 

1983 2.69 5.97 195.74 42.50 14.29 19.84 19.73 4.04 4.41 

1984 2.12 4.75 160.29 67.56 26.87 6.11 0.72 0.09 0.11 

1985 0.62 2.08 26.29 3.62 4.01 9.89 2.68 1.36 2.73 

1986 2.59 1.92 54.36 34.79 42.40 5.36 6.42 5.24 5.88 

1987 3.39 5.58 301.45 295.74 21.88 10.44 14.17 3.40 4.34 

1988 1.17 1.87 46.31 28.52 11.03 2.20 0.40 0.76 0.62 

1989 0.89 0.49 8.42 65.43 6.97 1.96 0.02 2.23 5.00 

1990 0.00 0.07 3.20 13.76 2.36 13.95 8.29 0.30 0.57 

1991 0.00 0.08 2.64 3.53 8.27 2.88 0.91 0.15 0.37 

1992 1.67 5.12 88.03 7.94 2.93 2.43 3.03 0.74 2.04 

1993 0.06 1.32 85.12 81.88 21.09 13.83 309.86 151.13 59.52 

1994 5.97 5.37 219.12 140.26 40.14 56.01 58.39 16.55 45.46 

1995 8.12 7.13 531.87 377.40 162.47 53.86 93.88 62.36 39.46 

1996 7.04 6.00 119.24 752.55 152.04 60.09 51.59 32.65 9.85 

1997 5.45 5.91 22.48 1,163.28 249.21 44.10 31.75 6.25 7.17 

1998 3.64 37.97 142.61 116.66 36.62 9.24 8.87 3.82 3.25 

1999 3.73 4.13 277.85 457.82 207.37 204.42 72.90 25.96 20.64 

2000 1.75 16.10 27.07 32.66 28.23 104.08 72.45 29.14 16.67 

2001 5.83 3.73 58.61 259.50 74.04 48.98 21.43 41.50 14.29 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Sheyenne River below Baldhill Dam, N. Dak.

1931 8.50 34.01 79.06 147.27 51.78 71.86 19.10 13.28 11.20 

1932 16.94 13.82 144.43 355.66 88.08 78.47 36.42 18.61 12.91 

1933 10.63 10.43 268.21 259.11 108.22 41.74 24.12 10.83 7.35 

1934 6.64 9.03 42.01 129.52 34.40 15.42 9.00 5.90 5.48 

1935 6.04 10.16 76.73 115.20 65.06 56.98 66.29 83.55 20.93 

1936 10.69 9.76 34.27 199.09 122.48 33.66 13.89 4.57 5.12 

1937 5.16 3.63 23.62 126.04 62.31 63.17 22.46 13.59 13.04 

1938 7.97 8.57 60.47 41.37 24.03 7.61 11.81 7.80 0.12 

1939 0.23 0.30 61.82 104.10 19.06 13.19 1.49 0.03 0.01 

1940 0.00 0.00 0.00 157.06 56.00 7.68 0.29 1.55 0.05 

1941 0.00 0.00 62.10 870.25 105.67 119.22 54.01 16.26 40.10 

1942 3.70 4.80 24.38 673.00 215.86 147.22 50.31 44.71 41.19 

1943 8.78 18.37 429.19 825.50 168.90 367.60 118.32 35.86 7.23 

1944 3.55 4.16 14.25 99.54 66.93 145.41 56.54 67.29 90.32 

1945 9.55 11.39 409.10 153.41 82.37 71.71 23.93 23.30 10.93 

1946 9.28 4.65 376.22 347.92 63.31 33.33 41.73 42.09 18.33 

1947 14.06 7.91 210.94 575.30 78.67 85.98 32.06 11.56 1.44 

1948 7.52 4.57 29.22 1,896.65 867.07 88.69 49.22 36.58 9.48 

1949 5.74 6.61 73.69 1,145.11 169.80 93.03 90.32 28.50 3.21 

1950 14.39 9.85 62.92 2,970.08 2,405.21 321.62 94.81 28.50 29.43 

1951 23.95 20.75 98.64 776.28 198.91 104.82 40.75 12.83 36.97 

1952 12.88 12.14 51.75 524.13 90.53 35.94 101.05 13.88 7.12 

1953 6.74 9.31 21.11 69.11 82.82 142.04 157.02 9.98 2.68 

1954 8.37 56.38 144.85 130.72 57.66 370.29 255.70 77.18 55.44 

1955 9.39 9.74 32.02 514.36 109.66 199.12 53.90 7.54 1.08 

1956 5.00 4.52 35.67 796.63 265.36 302.25 56.98 15.44 21.07 

1957 24.41 34.32 73.15 99.66 87.45 52.67 58.43 44.38 222.16 

1958 20.49 20.40 54.85 145.19 55.22 48.49 124.84 15.75 3.90 

1959 6.17 3.16 43.54 142.95 51.46 31.84 15.02 3.14 3.76 

1960 5.72 4.36 88.84 729.54 113.63 134.24 35.75 11.63 7.43 

1961 4.34 2.45 63.99 90.43 44.96 8.40 5.65 6.33 0.77 

1962 4.78 3.45 52.75 424.09 127.96 216.02 66.58 30.79 16.18 

1963 4.67 2.06 37.07 109.25 47.00 35.81 31.82 4.52 4.65 

1964 2.67 1.94 3.28 182.92 71.70 265.00 118.37 34.27 48.08 

1965 11.88 11.37 76.43 1,345.70 199.76 130.67 124.23 192.94 76.36 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Sheyenne River below Baldhill Dam, N. Dak.—Cont

1966 16.79 11.32 1,364.11 476.60 302.44 204.43 240.07 131.65 36.10 

1967 14.45 64.41 335.24 1,120.22 401.03 128.22 53.07 13.79 8.36 

1968 10.66 9.36 208.56 154.61 106.38 124.72 39.25 22.13 32.33 

1969 26.77 32.88 11.41 2,523.67 322.31 130.86 111.26 45.93 40.10 

1970 19.55 18.04 49.94 621.65 321.87 259.67 56.26 51.18 29.50 

1971 11.25 48.71 83.82 1,156.56 202.74 266.27 186.47 31.58 39.62 

1972 13.05 8.45 581.46 614.94 331.22 159.57 27.74 21.30 11.53 

1973 14.29 13.78 183.26 89.60 60.32 38.19 9.06 4.29 23.13 

1974 37.27 64.07 13.77 1,333.63 733.06 475.12 47.71 20.75 7.90 

1975 16.36 18.84 121.42 908.24 745.79 200.56 139.66 23.67 16.52 

1976 13.36 16.55 286.76 662.81 130.94 44.73 13.58 11.87 4.31 

1977 3.70 4.65 29.38 69.69 44.86 13.84 12.78 2.74 7.71 

1978 30.51 18.37 158.97 801.49 111.53 57.02 24.42 24.22 31.30 

1979 8.19 9.46 57.62 2,261.23 1,206.50 160.45 222.21 83.39 26.33 

1980 13.89 12.58 65.11 344.85 66.72 61.34 17.81 11.87 57.59 

1981 18.48 82.68 337.61 143.83 83.54 167.36 97.24 33.97 29.88 

1982 10.28 16.14 181.40 1,045.60 247.48 189.68 220.25 68.92 19.51 

1983 34.48 36.95 1,396.05 638.37 208.17 197.01 152.55 130.72 111.72 

1984 30.18 23.00 547.83 914.67 387.57 132.64 40.53 17.37 6.26 

1985 6.20 8.27 355.44 145.27 119.67 97.92 23.20 20.81 65.46 

1986 23.68 42.25 555.79 474.92 353.03 56.49 81.57 49.38 31.16 

1987 27.56 36.50 543.71 1,961.19 169.20 108.65 254.98 228.22 60.47 

1988 18.80 77.59 154.72 219.30 86.58 33.20 26.63 10.17 3.01 

1989 9.49 10.41 19.99 376.68 78.46 41.86 9.16 4.61 12.56 

1990 6.86 6.74 11.76 86.43 43.08 94.00 48.22 18.78 8.00 

1991 3.78 9.55 26.63 48.36 72.98 34.63 49.07 11.59 16.57 

1992 15.48 25.78 625.81 109.21 70.36 43.70 88.49 17.47 11.44 

1993 11.52 16.34 149.74 588.87 180.65 107.65 1,142.25 1,458.25 341.50 

1994 42.72 46.70 715.72 933.65 247.36 423.69 421.90 141.69 415.78 

1995 87.04 84.60 2,135.23 1,818.85 778.54 311.03 331.63 199.35 99.26 

1996 44.57 42.43 245.46 3,625.59 784.11 336.23 274.01 150.37 48.83 

1997 40.10 39.92 67.67 3,773.35 1,510.37 265.51 265.58 118.09 59.03 

1998 37.87 160.95 502.67 930.02 266.28 140.35 93.01 32.46 22.78 

1999 26.87 62.52 483.49 2,557.17 1,104.02 726.82 521.02 314.55 267.37 

2000 36.36 66.41 224.73 201.63 188.08 1,061.37 864.57 304.44 331.94 

2001 78.70 65.25 196.39 2,336.56 703.35 506.33 361.89 441.87 88.88 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Sheyenne River at Valley City, N. Dak.

1931 9.26 37.03 86.59 161.30 57.34 79.58 21.15 14.71 12.40 

1932 18.44 15.04 158.19 389.54 97.54 86.90 40.33 20.61 14.30 

1933 11.57 11.35 293.76 283.80 119.84 46.23 26.71 12.00 8.13 

1934 7.23 9.84 46.02 141.86 38.09 17.08 9.96 6.53 6.07 

1935 6.58 11.07 84.04 126.17 72.05 63.10 73.41 92.52 23.18 

1936 11.64 10.63 37.53 218.06 135.63 37.28 15.39 5.06 5.67 

1937 5.62 3.96 25.87 138.05 69.00 69.95 24.88 15.05 14.44 

1938 8.68 9.33 66.23 45.30 26.60 8.43 13.08 8.64 0.13 

1939 0.25 0.33 67.70 114.00 21.10 14.60 1.65 0.03 0.01 

1940 0.00 0.00 0.00 172.00 62.00 8.50 0.32 1.72 0.06 

1941 0.00 0.00 68.00 953.00 117.00 132.00 59.80 18.00 44.40 

1942 4.03 5.22 26.70 737.00 239.00 163.00 55.70 49.50 45.60 

1943 9.56 20.00 470.00 904.00 187.00 407.00 131.00 39.70 8.00 

1944 3.86 4.53 15.60 109.00 74.10 161.00 62.60 74.50 100.00 

1945 10.40 12.40 448.00 168.00 91.20 79.40 26.50 25.80 12.10 

1946 10.10 5.06 412.00 381.00 70.10 36.90 46.20 46.60 20.30 

1947 15.30 8.61 231.00 630.00 87.10 95.20 35.50 12.80 1.59 

1948 8.19 4.98 32.00 2,077.00 960.00 98.20 54.50 40.50 10.50 

1949 6.25 7.20 80.70 1,254.00 188.00 103.00 100.00 28.79 3.33 

1950 14.79 8.81 90.02 2,986.08 2,420.21 398.62 102.81 26.70 28.22 

1951 24.15 21.15 132.24 785.28 203.91 110.32 41.05 11.43 35.57 

1952 11.68 11.94 86.25 553.90 96.23 43.64 109.15 16.48 11.62 

1953 5.74 21.91 31.05 70.23 92.32 176.64 166.02 10.52 1.58 

1954 6.67 62.68 142.25 136.72 61.86 379.29 274.70 79.88 56.74 

1955 9.39 11.14 47.51 519.36 114.96 217.12 59.90 12.04 2.56 

1956 4.02 4.03 39.37 779.63 276.36 314.25 59.18 17.04 19.79 

1957 21.71 29.32 73.75 98.76 84.45 54.17 65.23 53.78 239.16 

1958 18.19 25.40 53.35 153.99 58.22 51.10 125.34 14.65 2.50 

1959 2.97 1.96 46.04 143.97 54.37 53.84 21.84 4.45 4.29 

1960 2.92 2.16 147.34 756.54 118.43 141.24 35.45 18.03 8.83 

1961 2.44 0.15 76.19 93.23 44.56 9.10 6.75 4.33 4.27 

1962 3.58 2.45 107.85 440.09 138.96 242.02 149.58 40.99 22.08 

1963 6.07 4.76 43.37 112.55 47.90 42.61 35.48 5.46 8.37 

1964 2.03 1.34 3.16 199.65 75.41 254.33 121.76 38.52 47.36 

1965 11.34 10.27 80.71 1,534.03 211.07 146.90 145.62 213.29 88.54 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Sheyenne River at Valley City, N. Dak.—Continu

1966 16.05 23.42 1,527.39 562.93 332.75 226.76 237.46 139.00 40.98 

1967 11.71 68.81 378.52 1,161.55 440.34 137.25 50.56 13.74 10.44 

1968 8.92 6.06 233.14 170.94 122.69 167.05 44.04 23.78 34.41 

1969 22.03 42.28 32.69 2,680.00 344.62 138.39 141.65 50.48 45.48 

1970 21.11 16.84 48.22 675.98 312.18 287.00 58.45 51.53 28.98 

1971 9.31 66.11 133.10 1,162.89 214.05 278.60 196.86 33.63 41.70 

1972 8.31 6.95 658.74 697.27 317.53 132.90 36.03 26.35 16.91 

1973 15.65 16.48 226.04 96.33 63.03 39.02 11.12 6.74 28.91 

1974 31.53 84.47 41.05 1,421.96 777.37 476.45 50.40 23.90 8.88 

1975 16.62 22.44 126.99 1,001.05 832.16 229.67 189.44 26.55 19.53 

1976 26.43 28.27 298.49 744.27 151.93 49.37 18.31 17.72 12.35 

1977 7.25 7.53 32.55 72.80 47.99 16.90 15.27 5.01 10.64 

1978 40.03 34.08 182.37 915.76 135.30 64.73 28.20 28.13 38.59 

1979 14.91 20.04 87.81 2,555.24 1,456.13 191.40 251.24 95.22 33.55 

1980 17.30 16.01 80.49 371.82 71.14 67.06 23.81 15.97 87.59 

1981 21.85 86.09 355.70 168.12 98.60 194.77 115.14 41.03 40.08 

1982 12.70 22.24 210.85 1,191.81 291.70 223.55 263.89 81.51 23.79 

1983 53.69 49.58 1,598.03 746.70 246.72 238.83 175.60 140.23 127.45 

1984 43.15 33.74 590.65 1,064.07 453.44 155.08 48.65 26.57 15.54 

1985 11.53 11.17 372.18 169.54 142.93 113.59 29.48 30.64 71.08 

1986 45.95 73.25 583.87 539.59 410.76 67.54 95.37 62.00 37.64 

1987 47.52 49.56 702.52 2,168.45 199.71 130.63 296.31 269.88 74.40 

1988 37.91 95.84 165.60 223.79 97.93 41.44 32.72 16.83 7.02 

1989 17.96 20.46 38.49 410.04 83.69 48.19 15.71 11.77 17.62 

1990 10.22 9.53 15.24 89.27 45.86 97.03 52.64 29.17 19.89 

1991 6.13 11.86 29.14 50.83 76.56 38.91 55.87 19.16 20.96 

1992 23.39 29.50 699.77 124.32 79.12 50.96 101.17 24.73 18.09 

1993 24.03 31.44 185.72 632.81 217.75 132.99 1,377.54 1,745.75 407.76 

1994 58.55 75.14 786.34 1,051.57 278.81 499.66 522.35 178.60 523.08 

1995 115.54 110.86 2,340.33 2,035.91 848.33 306.96 332.47 199.42 108.25 

1996 64.53 88.99 429.69 3,639.68 948.30 342.07 277.04 155.32 58.23 

1997 66.59 67.01 99.20 4,315.64 1,794.93 302.30 308.56 134.99 68.72 

1998 49.04 184.34 583.71 1,022.39 299.80 169.19 106.31 39.09 31.24 

1999 44.30 92.65 610.20 2,874.07 1,315.15 855.45 616.38 377.89 315.72 

2000 60.09 73.60 235.43 234.10 224.65 1,251.63 1,006.85 338.29 377.93 

2001 113.57 99.15 243.80 2,617.37 831.37 596.94 427.51 512.32 101.03 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Sheyenne River at Lisbon, N. Dak.

1931 10.66 42.62 100.67 187.53 67.89 94.22 25.04 17.42 14.69 

1932 21.23 17.32 183.92 452.89 115.48 102.88 47.75 24.40 16.93 

1933 13.32 13.07 341.54 329.95 141.89 54.73 31.62 14.20 9.63 

1934 8.33 11.32 53.50 164.93 45.10 20.22 11.80 7.74 7.18 

1935 7.58 12.74 97.71 146.69 85.31 74.72 86.91 109.55 27.45 

1936 13.40 12.24 43.64 253.52 160.59 44.14 18.22 5.99 6.72 

1937 6.47 4.55 30.08 160.50 81.70 82.82 29.45 17.82 17.09 

1938 9.99 10.74 77.00 52.66 31.49 9.98 15.49 10.23 0.15 

1939 0.29 0.38 78.70 132.53 24.98 17.29 1.95 0.04 0.01 

1940 0.00 0.00 0.10 200.06 73.50 10.06 0.38 2.04 0.07 

1941 0.00 0.00 79.15 1,108.01 138.62 156.28 70.80 21.31 52.57 

1942 4.64 6.01 31.14 856.90 283.06 192.98 65.94 58.60 53.99 

1943 11.00 23.02 546.50 1,051.05 221.49 481.85 155.09 47.00 9.47 

1944 4.44 5.21 18.24 126.82 87.83 190.61 74.11 88.20 118.39 

1945 11.97 14.27 520.92 195.41 108.07 94.00 31.37 30.55 14.33 

1946 11.63 5.82 479.07 443.03 83.09 43.69 54.70 55.17 24.03 

1947 17.61 9.91 268.65 732.51 103.22 112.71 42.03 15.15 1.88 

1948 9.43 5.73 37.30 2,414.72 1,136.66 116.26 64.52 47.95 12.43 

1949 7.19 8.29 93.92 1,457.94 222.68 121.94 118.39 29.35 3.56 

1950 16.46 10.19 102.65 3,270.00 2,967.45 625.01 149.52 38.91 28.64 

1951 28.06 24.77 144.24 875.76 263.78 127.85 49.73 15.53 40.63 

1952 15.21 16.29 94.35 559.26 99.88 47.69 113.03 20.93 15.50 

1953 9.23 27.40 34.11 70.85 96.71 197.40 191.89 13.24 4.46 

1954 15.52 72.13 155.05 159.25 69.63 411.64 319.14 87.08 66.69 

1955 22.13 16.18 51.40 560.58 128.01 264.36 103.61 16.21 3.59 

1956 4.42 5.12 50.36 837.76 343.99 367.20 70.54 20.72 20.88 

1957 17.61 15.72 96.65 124.96 90.76 54.73 71.64 60.60 273.87 

1958 11.09 47.90 103.35 202.79 76.03 70.37 122.75 19.67 1.51 

1959 0.07 1.76 65.54 167.30 62.41 64.20 36.85 6.33 0.22 

1960 1.02 3.96 247.44 899.04 136.74 153.20 46.56 19.35 7.54 

1961 2.14 3.05 153.49 108.63 53.87 9.76 1.56 0.19 7.68 

1962 2.98 3.45 231.55 593.59 201.87 274.58 635.99 97.31 41.99 

1963 5.37 8.06 74.37 163.05 69.91 65.47 44.09 11.64 10.18 

1964 4.33 11.74 13.06 253.15 94.22 213.69 188.57 46.04 53.57 

1965 4.34 4.27 56.71 1,757.13 292.28 201.26 149.63 254.31 77.65 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Sheyenne River at Lisbon, N. Dak.—Continued

1966 17.75 23.92 1,602.49 846.43 384.96 239.82 219.87 144.62 46.19 

1967 11.21 44.41 516.72 1,108.55 562.85 184.11 57.77 14.96 9.35 

1968 5.82 5.26 295.84 181.34 141.50 230.41 61.45 24.90 37.82 

1969 0.63 36.58 66.99 3,137.10 453.83 181.45 200.36 56.10 53.89 

1970 33.11 32.74 136.42 726.18 395.19 374.66 94.76 56.05 35.49 

1971 11.61 25.21 226.70 1,204.49 268.76 289.06 235.07 39.15 39.51 

1972 27.51 40.35 753.34 749.17 287.24 177.56 52.14 31.77 14.12 

1973 13.85 22.88 288.14 121.73 73.64 46.18 8.10 0.46 35.42 

1974 31.83 63.37 79.95 1,420.06 736.38 524.01 53.61 23.42 6.59 

1975 16.92 20.04 136.28 978.45 887.93 487.99 723.43 64.87 26.87 

1976 30.24 56.66 393.11 772.71 198.03 79.87 21.02 1.57 0.50 

1977 10.14 13.94 72.97 99.00 105.33 26.67 25.35 5.77 26.41 

1978 22.81 13.17 441.84 905.06 163.36 94.57 48.99 27.24 54.35 

1979 10.53 11.60 111.69 2,255.30 1,851.65 212.95 230.40 107.35 38.66 

1980 21.21 19.34 193.28 440.89 79.17 78.97 32.33 20.34 66.84 

1981 27.15 104.10 325.15 161.66 80.91 147.01 143.09 40.23 15.92 

1982 17.52 0.60 198.43 1,398.81 313.45 185.32 180.39 87.29 20.91 

1983 42.43 38.01 1,375.12 769.11 214.82 247.15 255.24 111.91 125.01 

1984 62.41 36.06 707.61 1,095.85 420.45 130.14 46.93 1.14 0.69 

1985 19.96 26.78 418.21 175.90 145.83 103.27 25.36 19.67 68.56 

1986 24.21 39.12 744.57 594.61 537.16 88.89 89.52 80.42 38.28 

1987 36.86 34.04 903.40 2,318.36 216.34 149.98 170.73 278.65 57.78 

1988 20.61 105.97 243.66 241.31 90.98 40.07 19.79 6.64 7.31 

1989 1.58 2.10 121.18 560.06 92.44 64.39 11.08 10.76 21.83 

1990 16.47 12.34 29.00 106.41 55.95 145.49 58.42 0.54 8.35 

1991 5.32 13.39 54.20 61.92 114.03 60.40 82.42 13.23 25.86 

1992 40.96 71.99 763.54 158.48 102.45 68.92 127.16 34.64 35.38 

1993 16.21 25.86 260.91 770.37 147.31 226.55 1,296.15 1,849.81 367.84 

1994 71.45 68.21 854.63 1,204.09 390.37 375.16 510.06 227.61 401.31 

1995 110.42 85.21 2,094.35 2,361.62 890.05 353.51 362.85 186.14 118.45 

1996 72.40 156.38 638.91 3,505.71 1,271.92 437.12 263.27 203.36 65.62 

1997 63.40 63.93 132.30 4,626.39 2,365.54 513.64 421.69 167.56 94.18 

1998 85.91 218.79 882.42 1,283.62 401.87 266.67 203.85 65.39 30.98 

1999 18.45 0.11 643.28 2,940.15 1,425.27 786.26 504.63 262.67 357.40 

2000 68.25 141.58 326.79 229.60 215.60 1,004.69 921.29 350.99 401.75 

2001 69.30 89.78 114.01 2,604.10 719.22 399.76 399.73 456.26 114.70 

Year January February March April May June July August September 
Estimated naturalized historic streamflow, in cubic feet per second, for the Sheyenne River near Kindred, N. Dak.

1931 12.55 50.20 119.93 223.42 82.62 114.65 30.47 21.19 17.87 

1932 25.00 20.39 219.11 539.55 140.52 125.19 58.10 29.69 20.61 

1933 15.69 15.39 406.89 393.09 172.65 66.60 38.48 17.28 11.72 

1934 9.80 13.33 63.74 196.50 54.88 24.61 14.36 9.41 8.74 

1935 8.92 15.00 116.41 174.76 103.81 90.92 105.76 133.30 33.40 

1936 15.78 14.41 51.99 302.04 195.41 53.71 22.17 7.29 8.17 

1937 7.62 5.36 35.83 191.21 99.41 100.78 35.84 21.68 20.80 

1938 11.77 12.65 91.74 113.86 69.14 38.48 18.85 40.14 16.41 

1939 11.18 9.90 102.80 253.38 60.25 54.30 26.07 11.04 8.85 

1940 6.25 5.59 6.72 205.80 118.65 43.07 14.45 10.74 8.46 

1941 12.35 12.35 31.72 1,016.35 225.10 213.57 110.45 47.07 51.76 

1942 23.73 22.16 45.53 650.48 396.28 291.30 107.32 75.39 106.64 

1943 32.55 35.79 263.66 1,621.40 362.50 750.87 265.43 128.90 61.42 

1944 26.86 31.18 38.28 217.64 255.47 244.82 178.12 161.03 181.05 

1945 43.63 46.08 541.42 446.84 184.08 156.35 77.05 61.72 36.82 

1946 28.24 24.80 325.63 673.20 147.95 112.21 86.52 72.46 41.02 

1947 37.26 39.61 70.10 1,249.37 233.01 225.78 111.42 56.44 31.44 

1948 31.67 29.41 38.87 1,419.72 1,589.92 265.82 146.38 100.97 53.22 

1949 27.35 21.86 116.31 1,132.86 507.02 189.45 135.25 119.16 34.10 

1950 33.49 28.55 213.62 2,815.18 2,498.31 1,105.62 250.21 134.70 83.33 

1951 48.25 47.15 146.44 912.08 409.51 199.42 120.85 48.13 79.27 

1952 33.78 42.14 99.25 1,309.00 193.83 95.04 163.95 31.18 31.72 

1953 17.34 31.21 141.25 166.44 209.33 353.50 302.23 62.22 22.89 

1954 15.17 111.48 196.95 221.52 122.37 317.35 378.71 120.70 75.95 

1955 5.89 27.04 95.31 617.26 153.27 233.58 123.01 106.66 26.98 

1956 21.06 18.56 8.42 679.02 523.46 327.10 106.24 54.09 44.30 

1957 22.61 23.62 142.10 199.65 140.15 89.22 115.49 86.63 275.98 

1958 36.89 41.30 197.30 281.68 123.22 117.36 156.50 47.40 19.62 

1959 5.17 2.06 83.99 232.39 99.50 84.29 72.70 29.96 20.58 

1960 19.52 18.16 141.99 1,121.53 219.33 194.89 97.01 36.08 35.45 

1961 21.04 24.85 189.54 159.42 105.66 44.25 24.41 20.08 19.99 

1962 14.98 19.65 131.60 853.58 298.56 392.57 1,045.44 281.04 114.40 

1963 21.87 14.06 128.12 309.24 153.00 158.86 84.84 45.37 36.59 

1964 9.03 28.74 45.31 340.64 151.51 180.18 263.12 73.87 75.88 

1965 18.04 24.17 8.56 1,632.02 461.37 309.15 142.68 331.74 110.66 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Sheyenne River near Kindred, N. Dak.—Continu

1966 27.15 48.02 1,420.34 1,183.92 490.65 323.91 265.25 200.96 78.65 

1967 35.11 2.31 592.77 1,066.34 673.44 305.70 107.65 37.50 28.71 

1968 22.32 13.96 329.99 261.33 214.89 242.40 115.83 52.64 58.28 

1969 21.93 13.78 110.54 3,053.99 976.92 274.54 295.64 111.84 85.75 

1970 29.91 19.54 123.77 796.27 416.48 449.35 195.14 91.69 60.55 

1971 29.41 8.61 264.55 1,135.58 471.95 350.55 324.55 74.89 84.77 

1972 54.51 70.55 837.29 785.26 467.03 307.75 136.02 83.71 50.08 

1973 19.25 46.78 432.59 216.42 119.83 83.37 36.51 21.40 55.78 

1974 18.03 9.07 106.80 1,352.65 896.87 649.60 108.99 62.86 32.05 

1975 35.77 32.97 154.35 1,006.30 1,110.54 611.38 1,491.73 162.65 115.59 

1976 52.44 171.06 539.21 796.51 307.90 125.98 61.15 26.89 8.10 

1977 28.45 38.55 132.79 167.89 140.78 64.80 47.17 21.14 42.89 

1978 20.41 15.17 431.70 979.15 259.18 160.23 104.89 49.42 117.69 

1979 24.03 6.30 36.04 2,285.05 2,169.56 361.89 299.81 188.67 83.32 

1980 47.91 46.14 177.55 575.06 122.54 132.83 67.17 51.89 52.03 

1981 48.25 124.40 362.56 220.38 121.69 167.42 195.30 69.84 25.79 

1982 30.72 16.50 154.28 1,410.75 388.48 254.73 190.05 128.74 41.84 

1983 54.13 47.61 1,326.87 912.76 294.36 246.53 353.54 139.64 142.06 

1984 91.22 56.38 690.45 1,207.50 496.57 228.90 104.58 20.00 26.36 

1985 37.77 35.98 473.72 229.71 212.95 166.45 74.68 37.27 106.73 

1986 47.71 32.92 902.63 732.10 737.86 174.97 137.88 128.11 97.80 

1987 74.87 75.54 831.91 2,490.86 320.92 228.09 144.57 335.27 84.99 

1988 27.31 106.77 376.68 318.33 108.72 59.75 52.75 15.10 28.43 

1989 2.88 10.60 89.08 892.16 149.11 94.14 40.95 27.16 41.97 

1990 19.87 28.34 91.18 186.00 93.84 181.92 90.05 11.70 12.86 

1991 14.68 29.29 87.24 115.21 150.80 91.63 97.70 20.90 51.36 

1992 30.56 69.89 724.55 225.89 116.86 103.56 157.98 65.06 67.94 

1993 9.91 30.16 189.21 1,008.13 210.71 293.93 1,123.97 2,137.14 473.92 

1994 110.55 80.61 903.62 1,418.92 548.07 395.40 654.45 210.75 311.48 

1995 111.32 115.31 1,751.65 2,785.95 1,181.32 538.72 524.46 247.95 192.14 

1996 47.30 60.48 875.26 3,457.29 2,006.09 728.70 336.72 322.47 125.26 

1997 61.50 72.43 92.57 4,403.29 2,880.36 609.18 503.92 223.25 131.69 

1998 131.21 213.09 1,147.94 1,435.67 701.06 560.96 496.27 138.55 109.73 

1999 66.25 37.51 751.68 3,064.18 1,596.44 924.03 624.69 337.62 543.32 

2000 109.25 145.58 537.14 356.99 327.67 877.59 1,202.23 451.10 529.78 

2001 94.30 131.78 308.70 2,960.83 839.60 497.87 449.49 503.95 147.57 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Sheyenne River at West Fargo, N. Dak.

1931 12.80 51.20 122.50 228.20 84.60 117.40 31.20 21.70 18.30 

1932 25.50 20.80 223.80 551.10 143.90 128.20 59.50 30.40 21.10 

1933 16.00 15.70 415.60 401.50 176.80 68.20 39.40 17.70 12.00 

1934 10.00 13.60 65.10 200.70 56.20 25.20 14.70 9.64 8.95 

1935 9.10 15.30 118.90 178.50 106.30 93.10 108.30 136.50 34.20 

1936 16.10 14.70 53.10 308.50 200.10 55.00 22.70 7.46 8.37 

1937 7.77 5.47 36.60 195.30 101.80 103.20 36.70 22.20 21.30 

1938 12.00 12.90 93.70 116.30 70.80 39.40 19.30 41.10 16.80 

1939 11.40 10.10 105.00 258.80 61.70 55.60 26.70 11.30 9.06 

1940 6.37 5.70 6.86 210.20 121.50 44.10 14.80 11.00 8.66 

1941 12.60 12.60 32.40 1,038.10 230.50 218.70 113.10 48.20 53.00 

1942 24.20 22.60 46.50 664.40 405.80 298.30 109.90 77.20 109.20 

1943 33.20 36.50 269.30 1,656.10 371.20 768.90 271.80 132.00 62.90 

1944 27.40 31.80 39.10 222.30 261.60 250.70 182.40 164.90 185.40 

1945 44.50 47.00 553.00 456.40 188.50 160.10 78.90 63.20 37.70 

1946 28.80 25.30 332.60 687.60 151.50 114.90 88.60 74.20 42.00 

1947 38.00 40.40 71.60 1,276.10 238.60 231.20 114.10 57.80 32.20 

1948 32.30 30.00 39.70 1,450.10 1,628.10 272.20 149.90 103.40 54.50 

1949 27.90 22.30 118.80 1,157.10 519.20 194.00 138.50 111.36 29.40 

1950 33.19 27.15 143.72 2,782.18 2,099.31 952.62 292.81 149.30 87.83 

1951 48.25 47.15 126.84 938.28 432.51 206.82 126.35 50.93 76.87 

1952 33.78 41.04 105.15 1,492.10 201.83 96.44 311.85 35.78 30.62 

1953 16.14 28.61 142.25 175.24 227.93 539.60 320.33 67.92 24.09 

1954 20.97 111.78 208.15 238.92 138.37 304.75 383.71 128.70 77.85 

1955 6.09 28.34 82.41 642.76 156.37 242.78 126.21 130.36 32.58 

1956 20.26 15.16 7.32 695.32 528.96 333.00 131.64 58.29 47.00 

1957 7.01 8.02 149.30 226.15 148.45 105.32 125.39 93.03 241.58 

1958 50.99 47.70 189.10 299.38 136.12 122.06 183.20 62.40 28.22 

1959 5.97 4.26 91.79 256.19 99.80 117.89 88.40 30.16 28.98 

1960 21.72 25.46 131.39 1,133.53 228.73 189.19 97.61 35.28 40.35 

1961 28.24 27.05 194.24 175.52 115.96 43.45 26.91 18.58 19.69 

1962 14.18 23.95 51.20 898.28 310.36 417.27 1,077.44 280.84 105.90 

1963 24.27 16.96 115.12 332.14 160.20 151.16 88.54 46.57 36.39 

1964 10.23 35.04 49.71 373.04 162.21 162.18 267.82 80.67 78.28 

1965 22.24 28.77 6.96 1,533.02 569.77 320.95 121.08 347.14 112.06 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Sheyenne River at West Fargo, N. Dak.—Continu

1966 32.25 47.52 1,186.54 1,340.92 550.35 352.61 289.65 203.56 82.75 

1967 39.21 9.51 516.37 1,142.84 726.94 354.00 127.45 52.40 39.11 

1968 24.02 21.76 331.29 287.43 199.49 245.50 131.23 56.14 64.08 

1969 26.13 9.08 132.14 2,378.99 1,135.82 324.04 313.34 126.94 89.45 

1970 37.01 18.44 103.47 835.97 498.98 527.35 233.44 98.49 59.65 

1971 27.61 8.71 229.45 1,103.68 568.05 359.05 338.45 78.79 86.57 

1972 41.31 70.25 800.19 839.26 511.63 386.15 128.52 91.91 50.48 

1973 19.45 46.38 391.69 215.32 121.93 86.77 38.61 23.00 59.28 

1974 9.83 8.57 110.30 1,359.45 912.07 716.50 139.49 72.16 40.35 

1975 33.18 41.19 171.55 979.00 1,094.59 566.73 1,383.74 185.96 109.81 

1976 44.24 160.36 553.65 829.75 357.07 136.64 62.61 21.63 3.63 

1977 23.85 38.35 131.79 188.22 156.19 48.10 48.72 20.77 38.71 

1978 13.91 6.37 441.30 1,201.55 299.10 160.24 114.07 54.88 115.92 

1979 22.73 5.40 7.54 2,059.05 1,929.57 409.39 290.75 199.80 85.33 

1980 50.71 53.54 131.35 631.76 126.95 134.64 72.20 50.81 48.04 

1981 49.34 120.99 353.95 240.17 128.58 175.11 203.62 73.97 25.60 

1982 27.70 16.20 144.28 1,422.75 405.59 265.64 191.42 134.78 46.07 

1983 62.92 52.80 1,228.86 1,066.35 307.05 292.02 461.66 154.56 134.87 

1984 94.02 73.28 567.75 1,389.50 589.98 284.20 114.23 19.75 19.10 

1985 51.68 48.79 452.62 279.92 232.87 164.86 74.31 36.99 115.35 

1986 45.41 12.52 876.83 804.70 824.86 197.97 163.71 149.12 123.11 

1987 80.68 76.65 698.92 2,451.87 379.14 253.60 133.86 376.64 96.63 

1988 32.96 11.51 378.42 357.09 131.82 72.86 53.47 19.26 26.94 

1989 8.41 6.34 27.42 925.30 162.66 106.78 44.69 30.07 52.94 

1990 17.27 21.44 68.38 170.20 94.45 167.32 92.52 7.25 8.79 

1991 21.28 35.19 90.24 108.71 129.32 75.64 96.48 18.16 39.89 

1992 42.71 79.54 686.80 249.84 145.02 120.21 142.09 49.75 46.42 

1993 12.35 31.50 189.54 1,114.36 254.16 326.47 1,152.26 2,130.41 529.27 

1994 113.48 90.44 982.45 1,593.55 568.91 408.83 954.34 270.33 340.94 

1995 144.12 118.51 1,753.65 2,743.95 1,200.33 589.23 537.32 263.99 208.46 

1996 52.00 30.68 806.98 3,029.29 2,057.09 690.90 344.63 393.78 158.97 

1997 140.00 153.23 195.27 3,758.29 3,208.37 692.58 574.05 288.56 170.00 

1998 141.41 213.59 1,189.94 1,428.67 768.46 639.67 636.79 158.47 93.84 

1999 74.35 41.31 895.68 3,207.18 1,730.45 1,069.23 626.82 353.05 623.83 

2000 126.25 164.58 658.78 385.99 362.68 1,085.60 1,485.26 536.12 667.80 

2001 128.30 164.78 379.59 3,212.37 1,134.61 660.87 569.52 586.97 172.58 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Maple River at the mouth

1931 0.01 1.58 10.23 30.37 5.28 11.58 0.76 1.07 0.24 

1932 0.09 19.80 333.85 217.86 33.16 13.41 2.82 0.21 0.28 

1933 0.02 0.13 139.22 104.59 21.01 4.68 1.22 0.16 0.08 

1934 0.01 0.10 2.65 36.75 3.21 2.69 0.16 1.18 2.37 

1935 0.00 0.21 77.00 35.64 24.86 7.87 9.52 0.79 0.29 

1936 0.02 0.14 0.78 177.76 18.23 3.28 0.40 0.06 0.06 

1937 0.00 0.14 0.36 50.21 10.31 9.35 1.06 3.27 1.67 

1938 0.01 0.06 36.53 24.14 7.62 1.88 0.29 1.01 0.15 

1939 0.01 0.05 111.96 41.11 1.86 3.33 0.55 0.06 0.04 

1940 0.00 0.01 0.02 148.81 12.22 2.27 0.16 4.19 0.01 

1941 0.01 0.07 24.78 437.44 18.11 32.66 10.39 1.02 2.15 

1942 0.07 0.28 8.64 232.85 88.11 54.75 9.81 3.10 2.33 

1943 0.17 0.22 258.75 119.03 39.52 265.07 61.60 1.77 0.34 

1944 0.10 0.07 1.67 63.39 60.90 25.09 13.95 13.95 10.76 

1945 0.35 0.00 99.96 92.67 27.26 17.85 3.89 3.65 0.51 

1946 0.11 0.03 124.20 74.86 9.54 10.14 4.77 0.05 0.14 

1947 0.14 0.00 108.01 1,014.20 64.14 382.04 19.36 1.10 4.37 

1948 2.75 0.35 6.79 555.04 55.49 21.09 14.93 9.89 1.68 

1949 0.04 0.00 9.61 224.27 16.66 8.73 7.85 0.25 0.00 

1950 0.04 0.00 92.35 993.93 670.20 82.96 70.52 6.99 2.66 

1951 0.76 0.21 7.90 251.08 17.41 12.55 12.33 6.51 11.68 

1952 1.55 0.38 0.26 971.62 27.80 7.21 52.68 0.60 0.01 

1953 1.52 1.57 26.81 22.52 95.73 775.01 68.58 55.27 1.93 

1954 2.65 3.81 41.19 39.79 15.25 7.05 13.95 2.77 3.41 

1955 1.58 0.27 0.20 126.45 6.81 14.49 68.36 10.24 0.30 

1956 0.02 0.00 0.00 122.38 29.53 14.71 3.14 0.53 0.26 

1957 0.53 0.16 7.62 29.07 14.60 58.73 14.93 16.44 27.58 

1958 2.51 0.63 34.11 80.23 18.28 16.98 45.86 3.34 5.53 

1959 0.00 0.00 10.94 14.91 9.03 122.44 22.72 1.19 0.00 

1960 0.88 0.43 75.40 386.33 17.09 6.30 2.17 0.00 0.00 

1961 0.00 0.00 32.28 19.31 18.71 1.85 0.00 0.00 4.31 

1962 0.47 0.18 0.98 743.70 229.96 184.32 823.04 289.02 71.17 

1963 0.82 0.00 16.62 171.29 35.91 37.75 13.63 7.21 6.09 

1964 0.11 0.11 6.30 118.84 42.29 53.22 18.50 9.36 4.33 

1965 1.28 0.60 0.32 1,232.35 100.05 45.86 69.88 62.95 43.37 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Maple River at the mouth—Continued

1966 3.28 1.16 1,115.45 489.83 161.71 46.84 24.45 22.82 9.36 

1967 0.87 0.91 84.41 406.49 182.48 31.15 7.08 1.32 0.70 

1968 0.29 0.18 49.98 65.96 33.32 125.69 44.56 12.76 6.67 

1969 0.05 0.00 0.00 1,831.91 163.87 38.51 403.89 38.40 23.80 

1970 4.04 2.27 44.30 560.19 463.49 516.93 35.59 7.63 29.64 

1971 0.52 0.00 221.48 139.22 29.75 41.97 59.17 6.27 29.96 

1972 3.81 2.07 512.68 291.63 405.41 117.25 45.11 56.35 31.26 

1973 4.59 5.18 431.70 85.70 25.64 8.75 1.13 2.09 13.74 

1974 0.24 0.06 0.35 598.27 185.72 53.22 14.60 17.31 7.72 

1975 1.24 0.00 1.01 1,399.67 354.35 373.71 2,568.95 54.41 29.42 

1976 3.94 4.47 285.24 210.84 28.32 10.11 3.01 0.04 0.02 

1977 0.00 0.21 1.89 20.80 13.03 1.95 1.35 0.10 1.63 

1978 0.41 1.70 374.70 765.07 85.46 16.31 8.77 1.06 4.92 

1979 0.42 1.76 2.77 2,054.25 388.55 90.58 36.50 15.11 3.00 

1980 0.38 4.17 59.69 198.67 13.46 7.59 5.32 2.60 2.69 

1981 0.23 4.29 9.29 63.44 10.92 15.92 31.95 9.94 3.68 

1982 0.07 3.66 89.66 660.25 72.03 41.25 33.08 3.36 1.47 

1983 9.23 7.41 531.50 211.56 64.57 59.19 150.46 31.04 48.00 

1984 8.14 6.43 510.35 349.20 90.38 44.54 9.32 1.57 2.23 

1985 1.40 2.05 430.63 77.37 47.57 16.01 4.07 19.69 1.05 

1986 11.65 4.73 494.10 239.86 214.66 25.90 16.22 7.17 4.59 

1987 14.75 6.18 1,248.39 822.93 151.61 41.37 7.41 191.13 54.75 

1988 6.55 13.35 436.79 226.13 44.37 4.49 2.69 2.12 1.25 

1989 0.32 3.62 5.86 640.24 59.14 7.09 3.59 2.66 2.06 

1990 0.03 0.95 2.13 27.19 14.53 6.41 4.39 5.85 2.80 

1991 0.07 2.49 6.59 27.08 87.37 44.16 3.98 0.93 0.96 

1992 1.23 0.15 337.43 33.02 16.66 9.81 12.00 15.47 19.27 

1993 1.23 4.73 185.26 205.31 49.61 69.13 1,412.73 671.08 241.71 

1994 12.65 16.51 721.30 227.95 166.88 84.23 972.48 270.74 409.66 

1995 33.15 17.04 1,020.53 743.17 325.19 50.03 245.35 52.15 56.13 

1996 3.43 1.46 538.20 1,499.42 392.17 96.19 20.58 14.53 42.33 

1997 2.23 0.62 3.29 3,170.44 646.56 179.83 303.93 32.73 42.10 

1998 13.35 307.90 1,475.82 526.62 408.78 238.55 236.79 40.60 16.17 

1999 22.10 19.64 1,018.60 1,228.06 1,119.61 101.93 94.35 44.35 434.04 

2000 14.30 47.93 465.48 151.22 63.01 937.86 404.41 21.66 86.48 

2001 16.00 14.51 194.12 1,945.58 327.80 241.22 85.38 61.91 56.93 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Rush River at the mouth

1931 0.00 0.17 9.44 9.23 2.16 1.49 0.05 0.02 0.02 

1932 0.03 1.98 24.99 36.29 5.16 0.36 0.02 0.02 0.02 

1933 0.00 0.00 67.96 22.43 5.24 0.21 0.02 0.02 0.02 

1934 0.03 0.06 3.40 7.56 1.31 0.08 0.00 0.00 0.02 

1935 0.02 0.06 8.99 4.67 3.85 0.64 0.47 0.65 0.02 

1936 0.00 0.00 2.44 28.82 2.80 0.11 0.02 0.00 0.00 

1937 0.02 0.00 1.33 2.22 1.57 0.75 0.05 0.08 0.07 

1938 0.00 0.00 6.12 0.92 1.16 2.36 0.08 0.05 0.02 

1939 0.02 0.00 7.36 5.49 0.28 0.13 0.02 0.00 0.00 

1940 0.00 0.00 0.09 23.56 1.87 0.13 0.02 0.03 0.02 

1941 0.02 0.03 11.67 79.93 2.78 1.26 0.03 0.07 0.10 

1942 0.00 0.00 5.65 39.13 13.91 12.73 0.38 0.18 7.35 

1943 0.03 0.02 33.69 18.30 6.17 50.79 19.87 0.61 0.51 

1944 0.02 0.03 1.49 9.70 3.26 19.76 75.55 1.03 90.82 

1945 0.08 0.06 107.82 5.94 3.55 5.50 0.28 0.11 0.75 

1946 0.05 0.02 47.40 7.61 3.16 2.42 23.65 0.00 0.00 

1947 0.00 0.00 47.65 270.68 12.82 63.51 2.50 0.00 0.00 

1948 0.15 0.00 0.00 214.03 9.00 2.46 0.83 0.19 0.00 

1949 0.00 0.00 23.59 63.01 4.22 1.78 3.24 0.16 0.00 

1950 0.00 0.00 38.34 316.15 133.07 27.99 4.26 0.04 0.00 

1951 0.00 0.00 46.25 43.77 3.60 5.01 1.03 0.00 0.43 

1952 0.00 0.00 0.00 118.11 2.75 0.14 1.85 0.01 0.00 

1953 0.00 0.00 8.23 3.46 9.26 80.04 13.26 1.49 0.00 

1954 0.00 0.24 9.27 14.11 3.42 2.88 0.06 0.00 0.00 

1955 0.00 0.00 9.51 17.85 0.19 2.26 0.00 2.83 0.00 

1956 0.00 0.00 0.00 40.04 4.57 14.42 0.11 0.00 0.00 

1957 0.00 0.00 5.85 2.67 3.55 27.17 10.88 4.32 2.83 

1958 0.00 1.78 2.93 5.28 3.06 5.06 15.91 0.00 0.00 

1959 0.00 0.00 25.30 2.24 2.01 7.37 0.31 0.00 0.00 

1960 0.00 0.00 42.68 76.05 4.24 1.56 18.82 0.01 0.00 

1961 0.00 0.00 11.70 4.56 3.52 0.25 0.00 0.00 0.00 

1962 0.00 0.00 17.54 144.81 27.50 13.21 63.18 4.52 2.46 

1963 0.00 0.00 3.72 15.83 5.60 6.33 0.04 0.00 0.00 

1964 0.00 0.00 0.00 33.83 7.99 16.69 0.70 0.05 0.17 

1965 0.00 0.00 0.00 169.02 24.88 7.35 9.79 0.17 0.97 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Rush River at the mouth—Continued

1966 0.00 0.00 91.42 74.81 23.08 7.53 3.99 3.54 0.30 

1967 0.00 0.00 29.49 78.07 16.09 4.48 1.92 0.00 0.00 

1968 0.00 0.00 15.83 15.13 10.98 50.58 2.98 0.00 0.00 

1969 0.00 0.00 0.00 369.70 13.78 8.90 37.15 1.12 0.55 

1970 0.05 0.01 50.13 174.76 39.77 51.23 2.50 0.06 0.77 

1971 0.00 0.00 31.82 28.56 11.39 4.30 0.78 0.00 0.00 

1972 0.02 0.00 32.44 59.91 22.75 3.03 1.82 0.52 0.03 

1973 0.00 0.00 52.46 4.69 2.28 0.32 0.00 0.07 12.90 

1974 0.00 0.00 0.00 211.85 42.06 17.84 6.25 0.74 0.01 

1975 0.00 0.00 0.16 444.35 71.69 65.80 64.65 0.14 0.00 

1976 0.00 3.33 54.94 21.26 2.39 0.04 0.00 0.00 0.00 

1977 0.00 0.00 3.65 4.66 3.85 0.64 0.00 0.00 0.00 

1978 0.00 0.00 126.96 67.51 12.03 7.87 0.64 0.11 0.14 

1979 0.00 0.00 0.00 592.72 32.73 14.63 1.92 0.11 0.00 

1980 0.00 0.00 17.23 24.83 1.43 0.49 0.00 0.80 0.88 

1981 0.00 0.55 2.69 1.74 4.81 5.55 0.27 0.00 0.00 

1982 0.00 0.00 5.51 219.15 28.97 2.72 0.00 0.00 0.00 

1983 0.00 0.54 55.56 28.40 11.21 59.41 17.35 0.03 0.00 

1984 0.00 0.00 210.30 81.48 7.84 35.35 1.90 0.00 0.00 

1985 0.00 0.00 19.71 7.25 18.17 11.59 2.91 0.00 0.00 

1986 0.00 0.00 62.39 142.48 100.50 1.62 66.62 4.53 2.21 

1987 0.68 2.70 157.38 27.47 43.05 11.46 9.46 1.56 0.11 

1988 0.09 0.09 6.81 10.72 1.67 0.01 0.00 0.00 0.00 

1989 0.00 0.00 26.07 131.46 3.83 1.93 0.00 0.00 9.61 

1990 0.00 0.00 1.45 6.88 5.30 34.54 11.34 0.01 0.00 

1991 0.00 0.00 5.85 2.30 17.51 2.49 10.52 0.23 0.00 

1992 0.00 0.00 35.70 6.33 2.19 9.12 32.90 0.02 0.00 

1993 0.00 0.00 59.44 45.47 11.92 12.26 274.97 36.50 1.38 

1994 0.00 0.00 104.61 25.76 12.86 6.09 95.75 36.17 65.63 

1995 2.44 1.10 248.33 107.54 62.03 2.91 26.52 7.81 6.40 

1996 1.47 1.37 78.38 308.39 105.41 12.97 3.16 1.78 77.42 

1997 4.28 3.32 58.67 823.51 59.09 127.68 88.47 1.85 5.59 

1998 1.60 126.95 196.33 26.85 63.66 200.53 94.16 1.33 0.18 

1999 3.26 3.50 310.25 185.31 89.81 4.93 10.57 3.62 8.02 

2000 0.45 4.09 31.04 16.14 9.67 150.90 14.31 1.63 1.08 

2001 1.43 1.28 14.20 304.20 71.36 6.58 4.12 10.30 2.60 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Sheyenne River at the mouth

1931 13.34 55.14 148.49 279.72 96.64 137.00 33.61 23.93 19.48 

1932 26.68 44.35 608.56 841.07 191.33 149.07 65.46 32.15 22.47 

1933 16.69 16.49 650.49 552.04 213.20 76.75 42.67 18.77 12.70 

1934 10.46 14.33 74.31 255.90 63.76 29.37 15.61 11.36 11.90 

1935 9.49 16.22 214.00 228.55 141.75 106.69 124.21 144.84 36.23 

1936 16.79 15.45 58.83 538.00 232.18 61.31 24.27 7.90 8.86 

1937 8.11 5.84 40.00 258.75 119.36 118.96 39.70 26.83 24.18 

1938 12.51 13.50 142.41 147.65 83.56 45.82 20.66 44.26 17.82 

1939 11.90 10.57 234.30 318.99 67.03 62.02 28.63 11.93 9.56 

1940 6.63 5.95 7.28 399.58 142.36 48.83 15.73 15.98 9.12 

1941 13.15 13.23 71.91 1,624.67 263.96 265.25 129.70 51.75 58.01 

1942 25.28 23.83 63.49 978.03 533.21 384.08 126.09 84.51 124.82 

1943 34.79 38.26 586.74 1,873.22 437.74 1,139.00 370.94 141.10 66.93 

1944 28.65 33.23 44.14 308.53 342.04 310.33 285.50 188.88 301.34 

1945 46.79 49.01 794.63 579.70 230.27 192.62 87.23 70.31 40.91 

1946 30.15 26.40 526.63 804.33 172.40 133.83 122.87 77.96 44.24 

1947 39.72 42.08 237.36 2,674.92 331.33 710.59 142.76 61.85 38.40 

1948 36.67 31.61 48.55 2,317.90 1,777.22 310.54 173.94 119.15 58.99 

1949 29.10 23.23 158.76 1,508.64 567.08 214.74 157.07 116.07 30.77 

1950 34.46 28.29 286.03 4,219.16 3,075.46 1,158.37 393.53 166.13 93.72 

1951 51.12 49.44 186.42 1,277.79 482.25 234.85 147.00 60.86 93.03 

1952 37.28 43.83 108.45 2,673.49 240.15 107.90 380.29 38.60 32.64 

1953 19.11 32.03 184.60 207.19 346.04 1,461.15 420.55 130.81 27.82 

1954 26.75 120.63 267.25 305.90 163.81 320.20 415.50 135.68 84.99 

1955 11.10 30.72 95.14 810.22 169.25 274.44 212.74 150.81 34.48 

1956 21.06 15.92 8.83 877.06 595.64 378.83 141.24 61.51 48.71 

1957 9.22 9.93 168.70 265.68 172.35 201.27 157.68 118.86 288.03 

1958 58.19 54.17 236.73 397.34 163.41 149.13 254.63 68.84 35.97 

1959 7.71 5.75 132.93 279.49 114.10 258.84 116.47 33.08 30.66 

1960 24.31 27.71 257.32 1,664.18 260.68 207.79 123.92 37.08 42.66 

1961 31.10 29.68 246.78 204.68 143.47 48.03 28.53 19.76 25.72 

1962 15.68 25.61 73.45 1,860.73 596.60 645.63 2,062.83 602.75 188.38 

1963 27.96 19.48 141.18 537.91 210.01 203.77 105.95 56.51 44.70 

1964 11.66 37.21 58.76 541.31 219.89 240.94 302.08 93.40 85.91 

1965 26.27 32.16 10.64 3,059.43 730.14 390.93 213.80 427.28 163.67 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Sheyenne River at the mouth—Continued

1966 40.57 52.90 2,486.58 1,996.75 770.55 426.19 330.38 245.10 98.30 

1967 44.09 14.38 650.64 1,693.11 975.32 405.06 141.99 56.48 42.12 

1968 26.62 24.34 407.27 384.30 257.04 447.76 186.96 71.92 73.48 

1969 28.98 16.34 144.79 4,758.15 1,378.57 387.94 792.69 172.98 118.07 

1970 44.14 24.42 210.88 1,631.74 1,052.65 1,153.84 283.71 109.51 93.62 

1971 30.46 11.31 509.96 1,306.99 637.30 423.32 417.94 88.82 121.48 

1972 51.61 76.91 1,387.78 1,251.68 986.85 534.62 183.53 155.82 86.10 

1973 26.68 55.67 909.30 316.62 154.98 99.37 41.55 26.91 89.67 

1974 11.82 13.74 124.61 2,247.63 1,194.28 828.48 166.61 94.31 50.65 

1975 37.35 44.32 177.87 2,937.76 1,600.71 1,057.71 4,216.98 253.97 146.12 

1976 52.81 177.23 923.64 1,101.47 405.88 152.73 68.91 23.21 4.05 

1977 24.20 39.26 141.30 219.73 179.81 52.82 52.25 22.01 42.28 

1978 16.26 11.96 984.20 2,120.20 417.23 192.84 129.16 58.50 127.33 

1979 24.95 9.30 15.75 4,894.43 2,475.06 539.89 341.44 223.90 92.59 

1980 52.96 59.94 218.21 884.09 145.81 147.48 80.95 56.53 58.56 

1981 51.15 127.94 371.42 318.13 150.70 204.48 246.37 87.44 31.04 

1982 28.75 21.27 249.64 2,397.59 531.09 324.33 236.07 144.41 49.57 

1983 78.53 64.86 1,889.51 1,365.26 401.48 431.96 659.44 190.60 190.25 

1984 108.34 84.66 1,332.70 1,900.90 720.62 381.23 131.06 23.06 23.89 

1985 56.08 53.01 931.47 379.72 313.30 200.96 85.07 60.52 119.58 

1986 64.16 24.31 1,479.63 1,235.55 1,194.41 235.89 257.85 169.07 136.06 

1987 104.04 90.75 2,216.99 3,418.02 601.68 321.28 155.96 596.82 159.23 

1988 45.27 27.34 854.15 610.96 184.71 80.42 57.47 22.42 29.34 

1989 10.49 12.17 65.76 1,764.28 233.65 120.40 50.29 34.65 67.49 

1990 18.23 23.51 75.19 209.70 117.88 214.15 110.94 14.27 14.08 

1991 22.35 39.13 106.28 142.29 242.45 127.29 115.06 20.85 42.67 

1992 46.89 82.57 1,099.04 300.86 170.27 144.99 194.06 68.58 69.43 

1993 16.53 40.65 456.15 1,411.09 331.69 429.08 2,987.82 2,984.18 811.11 

1994 133.55 116.87 1,875.87 1,919.28 781.63 522.59 2,128.41 607.86 864.45 

1995 191.05 145.71 3,131.64 3,762.38 1,667.72 672.73 844.26 344.09 288.58 

1996 62.55 45.54 1,490.65 5,023.03 2,690.68 837.61 384.88 427.73 290.90 

1997 157.86 169.15 273.90 8,077.31 4,111.07 1,046.07 1,011.94 336.95 227.71 

1998 163.99 674.75 2,988.81 2,053.84 1,297.52 1,132.54 1,014.08 209.62 116.05 

1999 107.18 72.50 2,336.34 4,798.73 3,088.44 1,232.50 767.06 421.80 1,118.43 

2000 151.58 224.52 1,198.92 577.57 457.01 2,281.31 1,993.03 580.21 788.38 

2001 157.91 194.51 617.60 5,677.32 1,609.73 952.73 690.78 688.47 241.89 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Buffalo River at the mouth

1931 6.30 19.94 82.36 40.18 33.34 32.00 21.33 15.57 7.58 

1932 12.80 13.63 65.00 147.51 63.01 38.74 8.16 3.49 7.02 

1933 5.47 5.21 108.53 143.07 74.66 29.42 11.05 8.91 9.54 

1934 13.03 17.77 45.57 169.45 34.94 18.51 5.01 1.78 7.02 

1935 10.85 17.77 148.47 92.10 73.92 52.59 49.28 19.49 10.62 

1936 3.52 1.19 77.95 694.49 120.50 21.58 2.73 0.00 0.97 

1937 7.11 5.92 3.60 164.06 128.23 57.49 17.29 21.09 18.14 

1938 5.14 6.47 126.76 61.40 302.92 104.69 20.96 8.58 8.86 

1939 6.87 4.94 259.04 324.04 39.47 23.05 9.61 2.13 2.15 

1940 1.03 0.90 2.71 274.39 78.58 22.07 7.67 13.61 7.09 

1941 11.19 11.66 73.87 420.46 57.25 75.39 15.08 9.07 23.41 

1942 2.65 1.85 34.90 104.46 362.62 255.84 43.89 38.49 187.19 

1943 12.68 9.62 88.98 1,388.74 287.10 532.03 303.41 133.99 51.24 

1944 10.25 11.57 28.06 257.00 282.08 322.90 580.21 870.38 634.40 

1945 25.60 18.84 1,032.92 698.93 302.06 164.15 38.13 27.21 62.15 

1946 15.52 11.28 529.35 275.59 123.81 106.53 330.25 65.09 39.47 

1947 35.67 25.48 153.14 1,264.01 328.41 336.02 82.99 22.56 24.52 

1948 20.14 19.20 53.25 741.26 121.00 76.13 42.54 28.93 17.90 

1949 12.92 11.66 21.83 258.20 133.01 45.11 124.30 67.55 20.84 

1950 11.32 7.32 242.85 1,891.22 1,044.70 205.34 65.09 19.74 15.57 

1951 16.00 16.35 23.03 959.88 176.90 212.45 63.26 40.33 47.44 

1952 32.35 31.64 34.54 1,539.84 147.23 40.09 622.63 284.28 112.41 

1953 18.60 20.62 242.61 353.78 305.86 1,171.70 162.92 252.53 65.58 

1954 26.19 37.80 118.61 429.33 322.78 174.93 55.78 24.89 31.63 

1955 15.40 15.76 17.39 441.09 109.47 121.98 571.39 533.63 68.53 

1956 19.91 23.82 29.98 1,240.03 271.41 120.38 31.87 29.05 17.29 

1957 16.47 16.83 224.74 415.06 177.88 257.56 242.85 79.93 411.90 

1958 37.45 31.52 72.79 138.99 95.37 171.01 800.63 65.95 97.83 

1959 20.03 16.12 139.71 254.60 210.12 476.87 476.13 107.27 66.44 

1960 40.64 31.88 74.71 1,003.90 437.03 154.46 126.27 51.49 54.18 

1961 20.74 19.55 171.01 195.12 303.04 63.62 23.78 11.06 19.86 

1962 11.72 13.51 17.99 808.03 1,111.12 2,621.15 690.95 188.32 80.54 

1963 11.38 7.38 113.57 279.01 194.61 603.68 36.91 86.91 125.11 

1964 19.91 21.45 53.37 1,024.58 428.27 146.43 53.71 22.92 35.86 

1965 18.72 19.43 20.39 1,669.66 379.35 320.01 95.51 49.76 68.71 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Buffalo River at the mouth—Continued

1966 43.25 34.48 1,568.62 766.14 497.41 129.39 101.52 228.01 60.50 

1967 43.01 47.28 233.97 1,021.23 344.42 402.51 103.48 25.49 19.92 

1968 12.44 12.21 110.81 203.09 158.99 132.84 93.21 28.02 40.38 

1969 20.50 17.77 21.47 2,282.48 240.14 78.53 121.29 39.42 21.51 

1970 22.63 21.80 51.33 527.37 317.25 301.03 63.67 11.72 11.99 

1971 14.81 16.35 100.26 306.47 103.82 73.02 143.00 26.55 149.98 

1972 41.36 36.02 856.75 747.08 514.74 165.69 55.59 57.69 36.58 

1973 18.60 18.60 146.55 117.35 82.25 44.70 28.74 29.37 161.87 

1974 36.14 38.63 62.36 928.28 558.88 228.46 85.32 68.03 36.85 

1975 23.94 22.51 32.38 1,140.91 483.86 987.28 3,450.37 97.33 38.93 

1976 29.98 33.77 233.26 367.99 81.94 29.52 13.30 2.94 3.66 

1977 10.48 11.13 49.68 107.42 43.73 45.78 36.83 8.06 45.85 

1978 60.70 36.41 465.94 2,379.65 230.45 75.58 46.28 17.84 12.58 

1979 16.95 15.40 21.47 1,601.01 396.43 150.81 232.84 68.38 20.98 

1980 25.60 28.20 81.19 595.57 73.04 44.50 19.22 15.81 37.62 

1981 20.74 34.36 73.87 100.02 186.98 59.13 54.81 78.88 46.85 

1982 15.76 17.06 285.30 856.87 186.95 69.11 99.46 37.76 22.43 

1983 30.10 31.52 243.09 174.73 127.93 94.29 991.94 137.98 74.43 

1984 34.13 72.40 741.02 641.48 154.80 692.47 71.16 20.48 13.84 

1985 30.81 24.53 411.58 209.78 789.75 765.93 182.99 120.52 173.19 

1986 55.34 52.49 697.01 1,635.83 1,114.70 535.63 187.76 72.12 247.06 

1987 63.37 66.10 664.36 274.12 189.73 81.56 44.50 44.61 33.57 

1988 27.58 26.64 315.74 329.65 99.42 37.23 12.41 17.73 18.11 

1989 24.47 22.66 59.80 1,629.82 165.57 69.05 24.10 23.03 116.04 

1990 24.13 27.93 127.08 260.53 174.24 167.68 48.28 15.74 14.55 

1991 17.38 22.59 99.25 165.52 319.22 136.08 185.64 26.08 22.09 

1992 36.46 45.24 205.16 125.84 92.94 221.72 188.01 41.44 64.62 

1993 30.17 31.95 150.22 758.37 183.84 315.02 1,833.19 1,117.63 194.26 

1994 63.29 59.28 756.39 643.02 358.82 141.50 192.77 82.81 61.40 

1995 54.51 57.23 818.13 551.14 342.32 94.52 254.85 57.47 41.16 

1996 45.03 41.47 183.13 1,281.50 882.42 274.38 64.19 40.31 32.21 

1997 43.33 40.38 40.14 4,090.43 552.10 404.90 567.54 127.85 131.78 

1998 101.54 337.58 941.76 667.33 1,402.34 865.87 1,808.11 117.33 72.87 

1999 86.98 108.66 541.70 907.74 782.73 354.30 321.63 175.97 594.18 

2000 82.24 120.87 863.46 465.31 258.67 1,350.95 628.93 95.83 231.52 

2001 117.31 104.99 103.26 3,311.14 767.51 595.30 166.41 76.30 64.73 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Elm River at the mouth

1931 0.00 0.09 1.17 0.62 0.05 0.08 0.35 0.00 0.00 

1932 0.00 1.22 146.62 60.97 1.62 0.61 1.06 0.00 0.00 

1933 0.00 0.00 44.14 11.01 0.53 0.16 0.50 0.00 0.00 

1934 0.00 0.00 0.19 0.96 0.03 0.03 0.08 0.00 0.03 

1935 0.00 0.00 7.00 0.88 0.80 21.76 2.97 0.00 0.00 

1936 0.00 0.00 0.00 37.95 0.37 0.03 0.19 0.00 0.00 

1937 0.00 0.00 0.00 0.19 0.08 0.37 0.45 0.05 0.03 

1938 0.00 0.00 1.48 0.02 0.13 0.00 0.40 0.05 0.00 

1939 0.00 0.00 15.21 1.24 0.00 0.32 0.27 0.00 0.00 

1940 0.00 0.00 0.00 25.08 0.13 0.03 0.08 0.11 0.00 

1941 0.00 0.00 0.67 309.88 0.37 11.62 3.21 0.00 0.03 

1942 0.00 0.00 0.07 71.22 18.41 3.34 3.05 0.05 0.03 

1943 0.00 0.00 86.41 14.90 2.52 24.36 14.86 0.03 0.00 

1944 0.00 0.00 0.00 4.04 0.53 1.59 7.40 4.99 0.61 

1945 0.00 0.00 15.02 1.46 0.66 1.09 1.72 0.00 0.00 

1946 0.00 0.00 81.80 2.44 0.48 0.35 21.31 0.00 0.00 

1947 0.00 0.00 24.05 175.61 3.45 8.52 3.26 0.03 0.00 

1948 0.00 0.00 0.00 4,460.22 70.60 1.91 5.25 0.40 0.00 

1949 0.00 0.00 0.00 308.63 3.37 68.19 4.59 0.61 0.00 

1950 0.02 0.02 2.60 6,295.86 9,667.72 50.36 34.97 0.56 0.21 

1951 0.14 0.11 12.92 91.42 1.62 0.77 4.25 0.00 0.08 

1952 0.07 0.02 0.19 119.01 0.21 0.00 10.59 0.35 0.00 

1953 0.02 0.02 0.93 0.41 1.78 50.84 16.24 0.03 0.03 

1954 0.02 0.81 4.56 3.49 0.74 5.52 22.13 0.00 0.00 

1955 0.00 0.00 0.00 48.79 0.16 11.73 17.14 0.03 0.00 

1956 0.00 0.00 0.00 24.36 5.52 5.49 0.00 0.00 0.00 

1957 0.00 0.00 0.65 0.28 0.00 0.00 0.00 0.00 0.00 

1958 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 

1959 0.00 0.00 1.70 0.45 0.00 0.00 0.00 0.00 0.00 

1960 0.00 0.00 12.32 111.77 0.41 0.03 0.00 0.00 0.00 

1961 0.00 0.00 4.47 0.51 0.14 0.00 0.00 0.00 0.00 

1962 0.00 0.00 0.00 218.53 30.25 23.72 99.76 3.79 13.77 

1963 0.06 0.00 4.11 21.09 2.44 1.29 0.00 0.00 0.00 

1964 0.07 0.12 0.05 22.98 0.71 190.13 15.81 0.18 0.32 

1965 0.10 0.07 0.05 3,466.47 98.22 14.80 7.32 1.99 4.40 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Elm River at the mouth—Continued

1966 0.43 0.21 3,392.00 257.24 89.49 22.79 10.05 48.47 1.30 

1967 0.14 0.12 159.90 1,102.16 385.81 27.62 2.70 0.08 0.05 

1968 0.12 0.07 23.14 2.56 2.84 354.53 3.37 1.38 0.69 

1969 0.12 0.10 0.07 3,260.02 55.93 19.10 20.24 0.87 3.47 

1970 0.41 0.46 0.22 1,772.47 385.73 177.00 9.10 0.34 0.37 

1971 0.10 0.14 9.20 276.32 11.46 14.64 20.88 0.24 0.13 

1972 0.25 0.14 390.82 704.28 200.08 27.27 3.31 0.24 0.08 

1973 0.10 0.19 150.56 2.39 0.71 0.63 0.45 0.08 0.13 

1974 0.05 0.10 0.05 1,422.14 304.89 89.57 2.81 5.52 0.21 

1975 0.23 0.19 0.86 1,039.25 213.98 23.43 245.98 0.08 0.08 

1976 0.13 0.15 105.84 56.57 1.15 0.25 1.17 0.06 0.06 

1977 0.04 0.04 0.04 0.30 0.20 0.15 0.60 0.04 0.07 

1978 0.12 0.07 186.33 1,141.21 17.11 4.06 2.84 0.05 0.18 

1979 0.46 0.46 0.44 11,418.27 418.98 15.96 10.31 1.63 0.68 

1980 0.18 0.09 4.13 49.17 0.42 0.13 2.61 0.99 0.68 

1981 0.04 0.07 0.06 0.06 0.24 0.12 1.09 0.79 0.47 

1982 0.09 0.07 11.27 573.42 38.65 6.30 8.43 0.66 0.37 

1983 0.34 0.29 312.93 163.18 24.18 295.69 55.25 11.23 6.70 

1984 0.30 0.23 350.41 130.45 22.28 249.82 2.75 0.97 0.64 

1985 0.00 0.02 120.13 27.94 7.27 2.84 0.70 1.35 0.28 

1986 0.14 0.11 203.48 233.09 65.08 7.43 8.51 0.72 0.27 

1987 0.55 0.19 2,261.17 1,353.08 70.52 30.22 2.35 69.53 8.15 

1988 0.50 0.63 256.02 66.54 3.58 0.80 1.80 1.10 0.62 

1989 0.07 0.07 0.02 753.50 7.00 1.64 1.90 0.96 0.54 

1990 0.04 0.04 0.04 0.51 0.33 0.37 1.18 0.52 0.38 

1991 0.00 0.05 0.05 0.48 18.18 7.38 10.33 0.80 0.48 

1992 0.00 0.00 149.89 0.74 0.39 0.50 3.57 1.20 1.50 

1993 0.07 0.11 43.20 53.09 4.38 7.46 219.40 608.66 104.65 

1994 1.62 0.90 724.67 67.78 89.62 55.35 10.07 127.26 260.15 

1995 2.91 0.95 4,225.83 1,223.70 611.17 31.79 34.80 22.46 13.30 

1996 1.17 0.47 8.55 5,247.53 519.57 49.61 18.39 1.16 0.41 

1997 0.52 0.83 1.41 16,327.12 338.75 57.22 46.72 16.22 2.00 

1998 0.11 103.89 1,011.07 118.17 25.04 25.91 58.83 0.92 0.30 

1999 0.92 0.56 2,075.06 3,010.21 3,549.44 487.70 60.58 9.94 20.59 

2000 2.48 25.87 23.83 2,128.61 12.90 38.60 53.91 20.39 1.03 

2001 12.36 19.17 59.25 10,035.27 325.06 178.27 50.49 92.35 2.07 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Wild Rice River (Minn.) at the mouth

1931 2.19 21.31 120.04 64.06 56.98 54.09 21.81 14.73 6.01 

1932 11.93 12.89 89.18 234.86 112.96 66.16 6.60 2.29 5.47 

1933 4.14 3.90 168.83 227.79 135.57 49.52 9.61 7.36 8.01 

1934 12.20 17.95 57.32 269.75 59.92 30.40 3.59 0.99 5.47 

1935 9.71 17.95 249.39 146.73 134.13 91.28 61.86 19.49 9.15 

1936 2.39 0.62 111.81 1,103.65 226.84 35.73 1.68 2.20 0.47 

1937 5.74 4.57 2.43 261.17 242.51 100.26 16.79 21.49 17.83 

1938 3.83 5.10 204.84 97.86 611.17 188.44 21.34 7.02 7.31 

1939 5.50 3.65 498.71 515.42 68.32 38.29 8.08 1.24 1.25 

1940 0.51 0.44 1.71 436.53 143.23 36.57 6.11 12.46 5.53 

1941 10.08 10.62 104.58 668.58 101.89 133.36 14.16 7.52 24.49 

1942 1.68 1.07 41.12 166.38 741.59 482.80 53.54 45.47 325.85 

1943 11.79 8.36 131.85 2,205.04 576.93 1,043.64 594.50 214.89 64.94 

1944 9.04 10.51 31.34 319.37 531.29 700.34 1,188.42 1,016.83 807.42 

1945 79.73 66.51 1,133.70 1,527.39 710.51 257.91 105.50 99.46 157.61 

1946 36.93 24.02 783.90 927.91 451.00 280.37 213.22 31.99 37.92 

1947 57.18 48.99 185.90 1,883.18 702.03 778.61 103.80 14.41 6.34 

1948 4.29 3.57 3.41 881.49 165.76 40.99 19.49 4.16 0.19 

1949 0.84 0.42 0.49 238.85 104.86 215.76 453.65 290.75 58.68 

1950 14.06 13.22 89.05 1,829.50 1,730.72 511.06 273.48 7.94 4.83 

1951 3.18 2.95 8.59 840.96 208.34 76.05 9.34 8.22 17.58 

1952 104.07 87.18 85.05 1,304.23 313.63 9.69 289.05 155.70 61.54 

1953 38.71 38.40 208.00 526.74 465.83 940.35 592.62 250.29 94.59 

1954 64.52 76.37 134.74 765.48 631.07 345.93 125.62 35.69 30.82 

1955 22.98 32.52 34.74 640.96 299.75 276.77 148.60 181.23 15.57 

1956 14.27 19.30 24.74 1,236.86 442.43 238.11 43.74 24.36 20.34 

1957 15.11 15.11 169.69 449.90 341.48 350.91 386.71 115.03 367.01 

1958 51.51 45.11 115.48 181.79 106.98 170.53 235.14 46.29 39.61 

1959 23.39 20.35 124.95 317.48 318.92 284.18 224.76 93.63 40.14 

1960 58.96 49.20 100.42 943.80 431.09 453.86 224.55 107.61 176.99 

1961 41.96 37.98 219.06 320.21 635.94 193.83 57.62 26.27 36.86 

1962 27.28 23.60 35.05 649.27 1,009.73 1,881.13 830.94 217.24 120.96 

1963 10.91 6.00 118.00 499.27 390.84 850.21 137.27 58.26 66.20 

1964 20.46 25.39 29.90 1,240.02 674.71 511.80 185.78 54.02 43.53 

1965 31.16 32.94 24.63 2,377.93 795.03 774.80 257.17 72.77 80.39 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Wild Rice River (Minn.) at the mouth—Continu

1966 89.70 58.85 1,563.18 2,052.66 1,045.53 305.05 131.87 232.28 110.37 

1967 64.41 72.28 324.95 1,652.65 681.38 552.69 267.66 46.39 18.22 

1968 33.89 22.87 218.85 407.48 336.82 256.85 198.81 71.81 92.26 

1969 58.64 64.73 74.84 2,608.45 576.84 322.63 177.52 54.12 39.72 

1970 71.65 56.65 61.90 1,505.28 1,134.40 1,401.31 223.60 39.61 25.21 

1971 36.51 39.45 205.69 836.43 351.76 171.17 79.97 38.24 128.27 

1972 95.68 73.44 1,042.12 1,831.60 948.30 347.84 160.89 125.94 66.20 

1973 41.54 45.32 428.53 257.69 216.71 150.83 86.85 87.91 872.46 

1974 84.87 84.45 91.90 2,468.45 1,731.78 581.71 188.54 132.29 45.65 

1975 64.62 68.82 104.63 2,268.45 1,224.43 932.62 3,321.63 226.56 86.96 

1976 67.04 77.32 493.37 873.80 206.75 87.07 43.64 8.59 0.76 

1977 0.10 0.23 30.32 176.21 59.43 38.87 13.48 1.15 27.02 

1978 85.29 54.03 151.58 3,432.68 431.95 175.72 77.46 67.17 97.88 

1979 31.26 30.63 64.32 3,221.09 1,202.07 444.83 640.69 86.29 50.43 

1980 48.89 50.57 74.74 708.64 164.04 51.82 14.87 8.77 14.62 

1981 9.38 12.90 55.16 111.05 189.74 155.34 189.26 158.73 180.08 

1982 65.46 62.95 230.74 1,723.18 648.87 233.19 120.97 42.50 22.39 

1983 49.20 48.68 759.59 377.16 186.13 448.63 823.16 181.00 108.89 

1984 67.56 129.98 832.75 931.17 261.54 1,646.44 127.28 25.66 17.08 

1985 35.61 26.81 887.61 333.61 2,196.77 1,266.46 802.52 524.73 329.53 

1986 126.84 107.01 632.11 2,490.56 1,706.51 524.27 219.66 93.50 133.10 

1987 85.50 79.21 909.49 457.58 492.41 290.67 410.39 249.54 105.94 

1988 69.24 62.42 491.90 755.06 220.07 60.14 19.47 25.96 33.83 

1989 52.86 57.05 75.77 2,512.29 522.94 280.67 67.06 17.19 117.77 

1990 16.87 20.54 147.25 513.90 322.00 298.46 79.20 16.49 5.14 

1991 17.83 28.33 154.00 245.37 581.98 144.28 152.24 29.88 25.39 

1992 38.61 40.91 518.43 215.13 239.37 120.38 635.03 277.78 326.32 

1993 74.49 77.95 258.11 1,120.83 369.79 447.51 1,699.55 1,942.01 378.13 

1994 88.65 81.09 361.58 1,174.25 738.67 765.16 887.54 255.22 445.89 

1995 129.25 121.59 1,445.28 903.13 910.03 238.18 1,038.85 326.46 151.42 

1996 156.00 156.63 152.11 3,250.02 2,180.61 537.11 151.25 69.01 45.47 

1997 138.38 22.87 136.63 5,383.39 1,216.78 698.28 1,682.36 314.80 166.15 

1998 196.70 804.76 1,437.91 845.88 2,263.86 1,868.36 1,861.27 204.75 84.88 

1999 161.46 146.35 1,323.17 2,163.93 2,036.50 985.01 1,070.44 692.59 1,409.24 

2000 174.15 180.44 1,030.68 662.45 375.11 2,656.03 1,036.56 229.60 309.65 

2001 257.03 219.26 233.69 4,839.36 1,546.00 936.18 290.28 376.58 162.25 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Red River of the North at Halstad, Minn.

1931 41.75 73.20 241.31 556.68 366.32 257.90 139.88 49.55 20.76 

1932 68.82 86.69 639.15 2,035.95 535.24 209.82 78.49 20.42 14.77 

1933 13.02 0.53 495.33 1,159.05 452.29 224.10 33.68 14.07 10.38 

1934 28.50 40.42 209.82 788.30 230.91 78.39 67.27 10.13 6.65 

1935 9.10 24.23 478.69 778.46 500.74 263.60 391.02 75.48 70.07 

1936 28.31 12.79 27.29 2,899.00 803.00 194.00 58.30 8.67 11.80 

1937 9.71 2.50 17.43 1,156.00 883.00 517.00 230.48 125.47 339.52 

1938 11.62 30.21 719.74 485.60 2,382.82 1,053.99 212.28 44.36 80.15 

1939 167.53 168.68 229.01 1,613.76 530.95 360.54 183.67 29.49 87.32 

1940 2.63 18.24 109.14 2,117.27 1,081.69 505.74 134.45 8.48 64.70 

1941 80.51 151.23 225.67 3,655.71 1,190.23 2,504.26 278.06 59.65 724.15 

1942 169.70 164.40 944.58 1,786.68 3,859.37 3,317.10 1,492.05 821.33 1,375.89 

1943 529.64 499.65 878.62 13,519.59 2,438.06 5,817.22 3,104.34 1,321.05 741.01 

1944 369.29 275.88 394.62 1,953.25 2,591.03 4,039.18 4,195.58 3,038.39 2,667.40 

1945 698.78 632.33 6,346.65 5,017.31 2,335.93 1,667.90 801.27 339.12 630.27 

1946 321.24 217.95 4,721.71 3,544.44 1,448.68 978.18 1,593.57 1,186.73 599.26 

1947 674.62 528.99 870.90 13,036.44 2,798.12 3,258.66 1,025.63 369.92 637.99 

1948 256.72 189.07 941.17 8,672.66 2,883.39 1,238.86 609.17 476.52 431.99 

1949 134.93 150.75 566.50 3,398.43 1,244.18 771.47 1,848.87 753.65 753.36 

1950 173.18 227.57 885.70 14,531.93 11,680.42 3,216.30 2,079.98 1,287.75 1,080.90 

1951 279.51 263.93 1,484.96 7,922.61 1,969.15 1,574.69 1,327.37 770.26 653.58 

1952 832.19 778.99 1,127.85 15,690.74 2,126.25 1,072.73 2,780.67 880.20 622.11 

1953 247.01 329.67 1,318.13 1,965.02 2,150.30 7,942.83 2,806.06 1,472.04 639.73 

1954 467.59 517.72 988.86 2,595.90 2,089.88 2,218.42 1,411.07 608.45 370.64 

1955 195.38 268.02 441.17 2,903.00 1,056.30 1,038.46 1,546.41 1,209.43 403.15 

1956 359.33 369.76 423.35 4,747.33 2,216.97 1,635.03 630.40 503.25 676.84 

1957 98.44 123.28 978.50 2,111.27 1,561.02 1,940.43 1,615.68 949.82 2,138.60 

1958 410.88 418.67 1,102.01 1,496.47 828.82 759.78 2,117.02 472.26 486.72 

1959 300.96 358.26 647.33 1,339.32 1,027.51 2,079.70 1,542.16 538.59 397.52 

1960 335.09 323.97 547.92 5,667.20 2,143.67 1,614.20 1,009.14 470.16 488.87 

1961 205.57 213.39 1,043.16 1,044.73 1,289.99 768.56 325.67 288.60 244.23 

1962 108.39 172.64 392.02 7,228.65 6,216.84 10,182.63 9,059.54 2,637.35 1,223.73 

1963 258.18 230.97 792.52 2,272.27 1,425.16 3,901.46 982.65 563.60 525.92 

1964 192.25 218.48 388.86 4,277.73 2,482.47 1,795.64 982.25 479.76 424.23 

1965 219.69 408.79 246.52 12,831.67 3,524.60 4,368.92 1,940.36 1,200.02 908.13 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Red River of the North at Halstad, Minn.—Contin

1966 628.32 611.75 10,736.77 9,393.25 4,316.02 2,151.65 1,443.84 1,774.76 872.87 

1967 550.73 428.29 2,017.79 7,327.87 3,584.77 3,577.67 1,625.55 565.57 273.21 

1968 192.48 208.04 1,229.03 1,653.41 1,545.41 1,685.17 1,063.35 545.20 491.38 

1969 327.73 361.23 772.40 22,133.07 5,646.29 1,986.09 2,126.02 694.12 347.80 

1970 314.47 290.06 579.68 6,223.90 3,407.47 5,003.78 1,278.34 430.72 340.51 

1971 195.86 233.23 1,794.37 3,657.42 1,601.14 1,093.08 1,406.40 462.14 841.53 

1972 821.68 817.55 6,999.65 6,455.62 4,538.47 3,106.20 1,580.03 1,176.88 776.18 

1973 424.29 566.74 3,075.82 1,561.22 1,006.33 715.68 466.68 376.98 1,445.81 

1974 798.51 629.56 1,159.59 7,753.16 5,177.20 3,118.81 1,513.80 981.01 504.70 

1975 332.63 474.05 901.90 12,023.33 6,133.18 4,820.05 19,906.31 1,547.41 852.70 

1976 457.44 566.58 2,819.30 3,997.49 1,281.35 558.28 324.22 102.50 86.46 

1977 113.63 100.85 553.34 970.06 575.69 321.27 301.36 87.50 223.76 

1978 668.78 406.60 2,435.39 17,884.37 2,259.52 1,528.70 2,030.84 649.51 417.25 

1979 133.64 159.00 453.36 19,344.38 8,045.41 2,514.49 2,345.54 1,365.31 845.68 

1980 507.00 454.38 849.37 4,316.70 1,036.84 862.03 355.06 339.70 279.33 

1981 168.33 363.28 864.83 846.08 1,127.33 701.41 738.59 640.36 396.07 

1982 316.10 371.66 1,295.26 9,670.73 2,269.40 1,413.36 1,141.23 664.88 436.52 

1983 313.91 290.14 3,949.36 2,991.07 1,111.78 1,673.40 3,626.33 1,015.75 887.62 

1984 491.01 629.08 4,978.21 9,185.75 1,952.48 5,744.79 1,535.81 591.63 350.20 

1985 675.18 506.55 3,908.96 2,073.48 4,987.89 4,301.93 2,444.53 1,820.57 1,711.97 

1986 847.77 833.67 5,740.21 12,809.03 8,090.81 3,482.30 2,308.16 1,232.82 2,265.80 

1987 979.11 1,015.28 4,736.50 5,185.71 2,151.21 1,444.66 1,534.16 1,115.24 627.48 

1988 354.73 510.70 2,827.00 2,444.47 983.55 612.34 289.98 201.29 224.52 

1989 162.48 193.76 908.32 14,997.53 1,940.91 1,596.89 691.45 353.47 930.29 

1990 171.33 173.34 375.72 1,411.29 1,205.61 1,615.72 762.44 336.39 274.23 

1991 119.91 284.01 747.67 1,288.42 2,245.64 1,809.11 2,415.87 700.89 860.36 

1992 344.58 392.62 2,698.32 1,245.23 1,056.28 1,717.14 2,008.45 883.91 858.22 

1993 438.89 475.74 1,473.52 8,410.04 1,924.84 2,987.30 12,252.58 11,032.08 2,455.92 

1994 904.12 891.18 5,842.65 8,716.65 4,212.13 2,554.88 6,111.38 1,726.05 2,042.48 

1995 863.68 839.98 11,861.75 11,826.03 5,105.24 2,409.01 4,570.57 1,362.95 863.04 

1996 782.16 597.76 3,541.79 14,738.21 9,430.28 3,751.73 1,386.95 969.18 575.17 

1997 799.94 1,027.95 1,844.57 40,864.14 14,342.51 4,354.45 5,075.39 1,756.45 1,248.21 

1998 1,023.02 1,995.20 8,981.05 6,647.93 8,621.16 5,943.44 8,726.09 1,869.47 1,135.27 

1999 861.19 693.34 6,651.12 11,129.81 8,439.56 4,247.20 3,468.12 2,408.23 4,578.32 

2000 821.50 1,017.31 6,144.00 4,354.31 2,876.47 10,487.46 6,764.76 1,943.85 2,237.54 

2001 1,108.48 1,000.95 1,850.19 29,087.76 12,262.97 7,384.42 4,292.57 2,552.32 1,270.66 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Goose River at the mouth

1931 0.14 1.68 12.01 28.50 3.81 4.54 1.36 1.43 0.35 

1932 0.21 21.18 289.49 253.75 29.36 13.50 1.05 0.32 0.42 

1933 0.21 0.17 139.72 112.41 17.68 6.44 1.24 0.25 0.12 

1934 0.08 0.13 3.37 35.20 2.20 2.95 1.33 1.55 2.97 

1935 0.21 0.32 74.45 34.03 21.32 92.14 12.86 1.07 0.43 

1936 0.21 0.21 1.06 202.49 15.11 2.97 0.62 0.11 0.11 

1937 0.11 0.21 0.53 16.38 8.03 10.34 2.60 4.00 2.14 

1938 0.11 0.11 37.33 6.92 5.73 1.45 0.01 0.00 0.00 

1939 0.00 0.00 105.29 39.88 1.20 9.66 0.13 0.00 0.00 

1940 0.00 0.00 0.00 166.23 9.70 1.75 0.00 5.03 0.01 

1941 0.00 0.00 26.06 550.04 15.00 65.79 7.43 1.35 2.71 

1942 0.08 0.00 9.84 273.21 86.89 33.64 6.48 3.80 2.91 

1943 0.47 0.34 228.65 129.75 35.68 97.93 23.04 2.27 0.49 

1944 0.18 0.13 2.15 69.66 17.79 22.71 6.13 41.79 13.61 

1945 0.70 0.68 104.76 43.07 19.50 18.32 6.41 1.39 1.17 

1946 0.50 0.59 223.12 54.88 17.14 9.76 9.48 0.58 0.90 

1947 0.23 0.15 129.22 419.77 41.04 55.72 9.83 2.08 0.95 

1948 0.48 0.11 0.57 1,956.85 158.57 24.86 16.71 10.61 1.02 

1949 0.49 0.27 1.21 548.98 40.61 170.25 19.93 13.39 1.19 

1950 2.85 2.51 47.96 2,305.68 2,437.55 144.65 62.04 12.86 7.69 

1951 6.64 6.15 97.95 307.67 29.36 15.43 3.87 1.69 4.60 

1952 0.00 1.95 15.10 348.83 12.00 1.53 140.79 9.78 1.51 

1953 1.99 2.03 30.20 23.18 30.64 145.40 108.86 2.33 3.06 

1954 2.70 17.05 61.47 65.09 20.68 44.14 5.03 0.75 0.38 

1955 0.60 0.74 1.04 228.23 6.80 66.11 6.06 2.76 0.17 

1956 0.98 0.89 1.11 299.95 59.72 61.75 6.84 1.43 1.40 

1957 1.41 1.14 19.82 19.29 8.80 11.61 6.04 0.47 57.15 

1958 1.38 1.22 2.03 17.16 5.58 3.74 31.43 4.13 0.85 

1959 0.36 0.36 36.09 39.92 7.54 7.66 0.88 1.79 0.67 

1960 1.29 1.21 76.72 463.52 16.43 13.97 11.29 4.79 2.09 

1961 1.17 1.23 58.21 28.97 21.36 4.08 0.53 0.45 0.79 

1962 0.96 0.91 1.26 734.18 192.15 156.90 51.79 12.15 131.93 

1963 2.82 0.67 31.52 95.01 20.07 11.61 13.00 2.59 0.74 

1964 0.36 0.36 1.98 159.67 20.38 295.80 32.64 6.43 9.46 

1965 3.54 2.31 1.83 1,736.00 184.31 75.30 73.57 25.81 39.39 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Goose River at the mouth—Continued

1966 11.80 7.63 1,176.60 503.72 176.81 94.90 127.57 142.39 20.53 

1967 5.40 4.49 301.23 1,006.44 432.46 105.19 19.14 3.08 1.71 

1968 4.83 2.88 127.24 55.88 37.95 413.23 58.14 21.31 14.31 

1969 4.57 4.13 6.52 1,686.01 143.38 86.33 79.68 16.70 34.67 

1970 11.27 11.91 14.50 1,261.68 339.46 284.66 42.18 9.93 10.13 

1971 4.14 5.61 84.27 521.16 70.74 74.87 67.25 7.84 4.96 

1972 8.19 5.58 448.73 813.30 253.21 104.44 12.93 8.02 3.50 

1973 4.25 6.68 293.25 54.07 20.38 13.58 4.70 2.65 5.33 

1974 1.77 3.60 2.96 1,136.18 305.60 197.55 41.32 44.56 7.09 

1975 7.68 6.91 28.76 978.68 260.92 96.30 63.61 3.78 2.98 

1976 4.66 5.92 250.81 245.28 25.31 7.54 2.28 0.99 0.77 

1977 0.78 0.77 2.86 19.18 10.89 5.89 5.02 0.67 2.59 

1978 4.60 2.48 322.44 1,023.18 84.38 37.51 11.34 2.00 6.29 

1979 1.80 2.17 3.34 3,060.77 451.19 76.82 47.47 16.18 3.45 

1980 5.32 5.01 58.81 229.08 10.46 2.84 0.47 1.59 2.41 

1981 2.29 5.14 10.51 7.03 8.01 15.43 8.19 8.73 2.96 

1982 5.54 4.44 85.72 868.56 68.89 20.46 20.14 1.71 0.44 

1983 9.49 8.47 445.18 245.56 61.18 138.86 67.18 31.07 47.47 

1984 8.92 7.48 428.81 427.53 88.93 122.68 4.44 0.06 0.00 

1985 0.88 2.54 366.38 80.40 43.61 14.68 0.62 20.36 0.87 

1986 6.44 5.62 416.15 282.36 233.47 44.68 50.04 7.98 5.29 

1987 13.45 7.21 981.51 1,109.24 158.36 109.82 570.55 171.54 53.57 

1988 13.13 14.72 371.27 264.49 40.18 14.46 4.84 0.84 0.58 

1989 4.85 4.41 6.87 839.53 55.39 22.29 3.38 1.41 1.54 

1990 0.89 1.28 2.73 25.21 11.25 9.27 14.89 4.54 0.00 

1991 0.29 3.11 7.66 25.10 85.93 51.22 9.55 0.59 0.00 

1992 0.40 0.22 292.36 31.27 13.18 11.46 115.72 14.79 19.50 

1993 4.18 5.62 167.82 237.59 45.75 51.86 781.19 551.80 214.29 

1994 24.57 17.90 590.67 266.83 176.36 152.15 456.65 237.75 349.40 

1995 33.68 18.43 1,297.48 1,057.44 552.97 112.93 329.36 93.00 70.18 

1996 20.65 12.71 81.46 2,114.25 506.80 143.47 95.14 17.14 9.30 

1997 13.24 17.26 36.37 3,628.68 402.76 154.93 497.80 78.43 25.07 

1998 5.74 230.27 685.32 347.66 99.54 101.14 82.29 12.64 4.89 

1999 18.32 14.09 944.60 1,622.91 1,422.88 489.87 327.86 59.79 89.14 

2000 30.93 109.10 128.68 75.72 85.50 1,022.16 654.66 98.25 20.57 

2001 49.89 42.47 354.15 1,376.17 458.58 125.36 70.29 88.50 16.61 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Marsh River at the mouth

1931 0.01 0.14 7.46 26.53 5.29 6.69 0.08 0.07 0.04 

1932 0.09 0.10 196.92 9.53 1.79 8.12 0.04 0.00 0.03 

1933 0.01 0.01 12.36 8.96 2.60 2.00 0.07 0.04 0.05 

1934 0.09 0.18 2.00 12.61 0.49 0.40 0.01 0.00 0.03 

1935 0.06 0.18 40.69 3.68 2.54 3.99 1.55 0.22 0.05 

1936 0.00 0.00 0.29 218.42 7.49 1.24 0.00 0.01 0.00 

1937 0.03 0.01 0.13 11.82 8.60 5.02 0.18 0.26 0.19 

1938 0.01 0.03 18.26 1.63 57.42 9.75 0.26 0.04 0.04 

1939 0.03 0.01 60.85 46.77 0.64 1.27 0.05 0.00 0.00 

1940 0.00 0.00 0.00 33.42 2.91 0.77 0.03 0.11 0.03 

1941 0.06 0.08 12.02 79.19 1.45 26.58 0.12 0.04 0.33 

1942 0.00 0.00 3.87 4.75 85.42 52.96 1.22 0.92 25.62 

1943 0.09 0.05 149.74 886.61 51.00 433.25 70.73 12.69 1.68 

1944 0.05 0.08 0.19 110.12 59.48 155.06 448.22 224.11 196.63 

1945 1.07 0.45 577.98 832.06 252.28 30.63 9.90 3.57 2.50 

1946 0.00 0.00 480.55 370.42 83.00 17.78 17.50 0.08 0.62 

1947 0.00 0.00 29.08 1,682.90 580.17 830.67 177.62 90.11 76.57 

1948 45.95 32.58 38.21 867.63 363.45 139.74 103.92 55.52 16.00 

1949 23.62 19.34 23.93 286.48 271.15 562.67 800.18 495.94 101.46 

1950 35.30 30.89 68.61 2,031.91 3,578.39 1,408.38 1,121.37 182.68 69.46 

1951 83.71 80.60 141.45 1,573.17 976.84 411.71 140.15 83.00 167.50 

1952 16.09 14.02 19.57 516.50 171.19 123.47 276.07 74.25 5.20 

1953 0.23 0.17 68.88 61.47 52.64 137.42 163.13 9.04 2.24 

1954 0.27 0.06 8.78 179.00 82.32 30.63 3.02 0.15 0.00 

1955 0.00 0.00 0.64 91.88 12.84 20.37 24.07 15.31 0.00 

1956 0.00 0.00 0.01 419.34 51.28 32.27 1.39 0.05 0.12 

1957 0.00 0.00 53.54 46.93 14.08 56.88 23.52 1.24 7.07 

1958 0.00 0.44 1.76 5.46 1.85 4.10 21.19 0.35 0.00 

1959 0.00 0.01 24.19 26.31 9.23 6.78 1.74 0.00 0.00 

1960 0.00 0.00 31.33 143.97 14.49 17.23 11.31 0.38 4.74 

1961 0.00 0.00 47.06 17.05 34.18 4.14 0.00 0.00 0.02 

1962 0.00 0.00 0.34 129.42 271.42 474.61 361.39 11.96 2.05 

1963 0.20 0.00 27.23 44.55 15.86 44.71 0.61 0.00 0.00 

1964 0.00 0.00 0.00 136.69 31.72 25.43 4.46 0.08 0.23 

1965 0.00 0.00 0.00 757.90 35.41 40.61 28.71 4.96 5.14 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Marsh River at the mouth—Continued

1966 0.20 0.09 514.78 385.36 68.92 13.66 3.25 2.32 3.17 

1967 0.00 0.00 79.45 189.84 41.16 13.56 1.60 0.00 0.00 

1968 0.00 0.00 26.31 15.60 7.41 21.47 1.45 0.00 0.00 

1969 0.00 0.00 0.00 804.43 42.94 33.77 58.52 4.36 3.20 

1970 0.23 0.22 1.94 463.23 79.31 188.15 3.19 0.06 0.19 

1971 0.00 0.00 61.74 133.12 7.37 3.77 0.63 0.00 0.00 

1972 0.65 0.00 420.26 424.76 72.33 6.44 7.19 3.32 0.80 

1973 0.13 0.10 111.18 13.62 5.76 1.01 0.00 0.00 35.00 

1974 0.38 0.23 0.22 1,024.81 204.97 28.30 1.71 5.31 0.11 

1975 0.31 0.16 0.17 730.80 117.59 23.25 314.63 1.22 0.01 

1976 0.00 0.01 90.03 93.86 3.34 5.55 0.02 0.00 0.00 

1977 0.00 0.00 3.69 13.48 1.86 0.77 0.00 0.00 0.01 

1978 0.03 0.03 20.49 894.07 13.61 1.36 0.02 0.01 0.00 

1979 0.00 0.00 0.00 1,182.92 59.75 18.32 73.02 1.96 0.12 

1980 0.02 0.00 8.92 140.00 1.18 0.00 0.00 0.05 0.00 

1981 0.00 1.77 1.72 0.10 65.22 5.36 1.61 0.27 6.34 

1982 0.13 0.30 93.60 445.91 33.91 3.91 1.61 0.17 0.00 

1983 1.73 1.03 452.65 90.95 5.93 337.88 76.16 28.03 25.30 

1984 0.73 3.54 310.76 186.03 12.99 40.04 3.02 0.15 0.10 

1985 0.58 0.36 258.87 18.90 406.93 15.31 12.48 11.13 5.24 

1986 0.58 0.52 217.07 425.55 185.28 26.39 25.16 5.73 0.75 

1987 0.44 0.35 272.60 27.63 45.40 8.09 354.97 17.23 1.97 

1988 0.26 0.21 108.27 65.70 2.13 0.14 0.00 3.99 7.77 

1989 0.00 0.00 0.64 804.57 17.09 6.29 0.10 0.00 0.00 

1990 0.35 0.48 0.87 37.15 4.88 41.98 7.04 0.00 0.00 

1991 0.18 0.31 12.16 6.52 98.45 37.47 3.88 0.17 0.00 

1992 0.84 1.32 84.21 6.34 3.73 23.79 37.34 27.32 29.95 

1993 0.56 0.64 104.56 175.83 4.92 4.97 137.01 47.28 0.66 

1994 2.67 2.34 450.76 145.16 43.52 127.03 169.48 2.50 125.36 

1995 1.95 2.17 539.24 101.42 114.06 15.43 229.31 6.00 0.83 

1996 1.31 1.10 45.17 851.63 304.56 14.71 3.87 0.25 -0.32 

1997 1.21 1.04 17.71 1,730.49 109.90 404.06 341.75 3.30 1.82 

1998 7.22 90.26 177.15 94.39 394.00 245.51 64.13 0.70 -0.10 

1999 5.20 8.32 777.53 248.80 130.17 13.17 55.79 3.43 70.15 

2000 4.63 10.41 11.04 33.84 10.15 393.80 72.20 4.58 0.96 

2001 9.77 7.74 248.87 909.53 38.01 13.66 1.27 15.45 3.38 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Sand Hill River at the mouth

1931 3.57 9.26 34.85 58.94 19.68 14.15 9.71 7.23 7.96 

1932 5.75 6.35 27.93 51.30 61.77 16.91 3.97 9.43 8.55 

1933 2.39 2.50 45.02 49.51 25.19 13.09 5.25 4.30 4.59 

1934 5.86 8.23 20.06 60.28 11.15 8.51 2.52 0.96 19.68 

1935 4.85 8.23 60.27 29.67 24.93 22.49 21.16 38.61 8.64 

1936 4.27 0.60 33.08 310.83 42.12 9.81 1.43 4.67 4.79 

1937 3.14 2.82 1.89 58.05 45.02 24.44 7.98 9.60 17.13 

1938 2.24 3.08 52.02 18.52 113.25 42.70 9.55 12.52 4.28 

1939 3.03 2.37 101.21 128.10 12.72 10.43 4.62 1.14 1.14 

1940 2.08 0.45 1.45 105.57 26.62 10.01 3.75 6.38 3.48 

1941 5.00 5.47 31.46 173.42 42.40 31.45 7.02 14.54 18.94 

1942 5.86 0.91 15.65 34.34 137.36 98.13 19.00 22.61 19.53 

1943 5.70 4.53 37.42 310.20 118.70 236.89 66.88 33.74 19.70 

1944 4.57 5.42 12.78 64.38 59.30 58.89 98.70 126.58 73.34 

1945 11.77 8.71 182.65 297.58 146.48 98.19 42.13 30.81 45.86 

1946 7.02 5.29 146.62 227.25 75.36 42.83 32.63 13.03 18.89 

1947 12.81 13.11 24.22 693.05 193.86 372.36 66.07 30.61 19.60 

1948 8.81 6.50 5.86 515.65 76.67 35.05 34.14 22.53 12.83 

1949 9.16 9.03 14.63 173.46 61.02 198.61 69.91 29.19 13.03 

1950 11.09 7.06 9.99 825.95 1,167.79 116.58 183.15 43.54 18.59 

1951 14.12 12.10 10.90 432.60 132.84 45.06 20.51 18.59 25.86 

1952 12.10 11.09 15.14 223.92 47.28 21.72 53.44 18.79 14.75 

1953 7.97 10.89 69.02 100.10 66.57 81.12 50.21 28.89 16.47 

1954 5.34 6.49 20.28 145.41 57.58 82.43 29.60 11.01 8.07 

1955 6.87 7.42 7.49 151.57 31.82 34.75 15.76 12.53 6.56 

1956 5.27 5.46 7.49 319.58 106.37 60.71 16.16 11.62 11.62 

1957 8.59 7.60 49.04 121.39 41.52 119.81 131.83 23.84 52.53 

1958 14.02 12.51 22.40 30.98 23.94 25.86 63.54 18.08 11.42 

1959 4.85 3.87 37.24 79.32 68.90 27.78 16.67 14.45 7.97 

1960 12.10 9.86 16.45 163.57 39.70 47.48 42.02 16.26 14.65 

1961 6.77 7.34 64.88 53.28 42.13 13.44 10.30 6.36 9.93 

1962 2.04 3.58 6.27 256.01 234.87 295.58 301.04 60.71 47.28 

1963 9.33 4.98 37.74 95.26 47.68 58.09 33.74 12.22 10.71 

1964 6.66 9.67 11.91 228.26 89.71 48.79 68.79 17.78 34.85 

1965 10.89 8.41 10.70 925.04 136.88 127.29 55.46 25.66 31.01 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Sand Hill River at the mouth—Continued

1966 18.25 16.34 388.10 943.10 193.66 68.39 25.46 27.98 22.12 

1967 12.61 14.42 90.82 344.00 103.44 73.74 26.77 12.83 12.22 

1968 10.29 8.03 101.72 68.52 37.98 272.05 48.99 15.15 12.32 

1969 4.74 5.69 7.57 675.09 131.02 104.25 50.51 20.61 25.05 

1970 13.11 11.19 12.82 758.13 243.66 166.99 37.88 16.97 13.44 

1971 11.70 12.61 43.69 348.24 61.97 36.89 17.71 10.77 33.63 

1972 26.02 19.26 321.40 723.12 171.27 49.72 29.53 33.90 17.67 

1973 11.09 12.30 230.17 51.56 37.92 22.75 12.55 12.89 81.21 

1974 18.86 18.15 19.17 717.97 303.50 88.41 19.83 25.01 18.88 

1975 12.00 13.82 23.71 762.98 223.09 49.42 184.39 35.82 18.88 

1976 16.04 15.23 84.56 319.68 41.78 33.66 20.01 11.03 7.53 

1977 7.93 8.25 19.07 52.07 32.99 41.03 11.32 7.25 15.68 

1978 18.46 13.31 37.54 954.60 64.11 54.07 22.13 15.68 17.50 

1979 12.20 13.01 17.36 876.80 162.14 71.83 168.16 46.40 18.18 

1980 19.36 21.48 43.29 282.55 33.98 12.01 10.31 11.38 11.21 

1981 8.12 12.30 33.10 25.53 51.45 39.20 24.55 17.27 34.85 

1982 12.20 10.29 50.35 350.66 145.87 36.26 43.84 13.90 10.30 

1983 19.36 19.16 336.94 183.05 55.26 230.64 114.82 50.29 72.73 

1984 27.03 47.20 203.33 339.86 56.12 602.39 46.11 17.76 11.97 

1985 14.25 11.26 155.78 77.20 316.54 170.02 183.36 259.02 94.86 

1986 30.36 23.09 219.38 584.67 271.85 70.83 84.86 27.81 21.59 

1987 17.35 16.24 186.88 80.83 111.29 61.00 140.14 105.69 28.08 

1988 20.47 16.54 127.55 211.00 37.55 37.45 15.08 10.85 14.50 

1989 13.92 11.30 14.33 783.66 80.61 41.93 29.34 12.82 14.77 

1990 8.65 11.40 60.24 89.41 40.01 60.19 19.08 9.77 8.40 

1991 6.32 10.99 51.46 49.40 98.17 31.64 32.96 11.64 10.48 

1992 10.59 14.22 80.93 54.40 36.85 21.36 29.87 54.74 85.81 

1993 14.32 12.20 39.76 341.64 47.20 51.62 227.31 431.18 41.74 

1994 17.55 14.12 52.98 223.72 106.57 176.86 379.69 64.78 124.97 

1995 23.40 22.19 459.44 231.51 158.60 42.12 330.42 46.13 27.61 

1996 31.77 28.94 31.38 1,177.62 374.62 91.74 34.45 21.82 18.22 

1997 24.20 22.09 24.42 1,582.26 178.04 188.02 483.28 63.52 40.97 

1998 32.27 184.45 425.33 155.10 454.27 281.10 228.13 46.52 23.80 

1999 30.25 35.40 615.95 971.46 380.19 162.24 106.81 135.93 377.49 

2000 33.89 37.11 94.15 107.97 75.08 257.92 189.79 48.61 33.50 

2001 37.11 33.48 62.26 823.42 160.64 87.16 40.98 44.68 46.77 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Red Lake River at the mouth

1931 127.17 160.23 285.23 391.53 252.68 245.90 84.81 33.33 23.06 

1932 56.96 60.84 237.60 1,403.98 347.32 88.53 40.66 20.87 13.99 

1933 24.77 31.66 117.12 659.23 177.60 134.10 40.11 16.83 14.54 

1934 16.80 19.92 141.59 542.54 167.87 87.87 48.31 13.44 9.69 

1935 17.34 22.83 369.45 562.78 309.95 173.77 98.69 35.08 61.97 

1936 34.24 26.92 26.95 1,478.67 513.88 99.78 28.63 14.43 11.37 

1937 21.32 19.17 28.36 437.00 782.74 418.04 769.62 1,268.86 631.26 

1938 63.53 86.90 670.71 317.38 3,637.18 1,137.71 380.00 118.91 155.52 

1939 169.17 152.91 217.15 714.11 451.37 338.80 197.16 101.53 257.49 

1940 168.96 187.15 201.34 2,182.28 1,098.37 526.56 236.61 163.50 156.39 

1941 225.49 228.07 213.14 2,865.33 806.89 2,771.60 553.77 333.55 974.87 

1942 482.53 514.62 1,689.75 3,151.10 3,091.82 892.25 313.99 373.23 1,394.54 

1943 391.11 363.86 572.63 4,293.12 2,480.89 3,769.42 1,547.55 1,017.16 1,039.90 

1944 445.27 483.07 534.64 1,438.62 1,343.18 2,495.10 1,621.87 2,084.16 1,675.42 

1945 764.23 753.79 3,686.93 5,631.07 3,170.51 1,521.32 940.77 626.01 1,059.24 

1946 613.15 583.75 3,918.58 4,185.96 1,907.11 1,107.11 835.09 382.84 507.65 

1947 534.65 489.21 686.83 4,613.54 3,615.32 6,089.65 2,701.65 1,028.64 1,238.26 

1948 983.05 686.92 731.54 7,092.42 3,725.70 1,170.50 1,043.39 720.55 619.57 

1949 378.62 380.77 515.69 2,800.38 1,372.69 3,203.30 1,326.78 2,161.76 1,377.06 

1950 715.56 705.76 858.95 6,235.09 16,710.47 5,138.83 3,936.63 1,825.15 2,045.91 

1951 1,790.78 1,576.49 1,765.53 6,032.67 4,661.23 2,127.88 1,328.97 571.37 797.05 

1952 1,227.60 1,302.98 1,275.16 3,502.91 2,122.42 1,865.58 2,542.09 938.58 655.30 

1953 395.63 404.57 910.37 963.63 1,128.97 1,368.31 1,133.34 494.43 429.29 

1954 316.27 326.07 446.52 2,013.42 1,426.24 1,321.32 736.40 474.10 391.81 

1955 346.31 363.33 395.65 2,806.87 772.24 1,221.86 532.24 295.74 282.52 

1956 243.47 248.43 249.08 3,689.10 2,720.23 926.34 955.74 329.18 1,412.03 

1957 248.86 127.50 724.51 2,717.03 1,390.17 3,056.85 3,642.64 1,502.74 2,391.27 

1958 890.55 835.63 1,083.56 1,061.91 530.39 659.68 1,674.33 398.04 113.44 

1959 79.58 90.24 323.15 1,644.43 749.32 525.94 347.46 199.70 141.02 

1960 198.78 190.17 206.89 2,468.20 826.26 1,030.42 459.92 77.19 93.15 

1961 69.46 73.55 439.09 716.09 622.66 101.67 98.17 57.74 202.11 

1962 85.07 88.30 111.64 3,084.13 5,158.64 7,874.50 4,148.80 2,082.12 1,894.14 

1963 1,063.85 954.98 1,372.41 3,460.52 2,271.92 2,432.58 1,365.90 717.92 878.69 

1964 591.12 557.63 396.67 1,999.23 1,433.68 2,743.29 1,269.97 829.96 512.89 

1965 675.22 688.46 693.16 7,930.15 4,180.15 4,230.73 1,986.91 874.34 1,251.15 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Red Lake River at the mouth—Continued

1966 1,174.55 1,125.01 1,829.22 11,111.56 5,747.37 2,626.35 1,523.52 1,923.41 1,631.48 

1967 1,139.01 1,167.01 1,584.58 7,401.97 5,196.56 2,758.96 1,452.74 921.26 916.39 

1968 341.72 285.62 1,317.21 918.13 442.24 2,367.63 3,965.43 2,039.44 1,443.50 

1969 1,345.77 1,340.38 1,325.87 8,495.49 3,996.77 2,236.12 1,308.32 1,038.34 1,347.32 

1970 1,204.70 1,120.71 1,129.94 6,069.75 4,259.63 4,485.67 1,712.94 911.16 1,060.33 

1971 836.85 931.72 1,069.54 3,258.94 1,570.26 1,345.19 914.89 747.74 620.65 

1972 976.84 997.62 2,484.12 5,883.25 3,266.28 1,874.83 1,117.22 1,340.12 1,401.97 

1973 655.19 658.53 1,840.05 628.96 687.07 572.46 359.18 596.71 2,399.79 

1974 1,004.84 1,090.55 1,090.97 7,450.04 6,303.61 3,138.35 1,864.13 2,268.74 1,596.51 

1975 1,077.89 983.78 1,018.69 6,594.92 5,149.52 2,871.69 7,582.21 2,013.02 1,916.74 

1976 1,447.03 1,340.43 1,741.58 3,721.07 1,480.70 1,386.08 1,095.82 1,141.84 738.92 

1977 197.47 202.21 306.85 495.43 416.23 376.10 515.26 268.40 500.23 

1978 679.14 677.20 757.82 8,159.33 1,981.28 1,539.60 1,581.98 969.15 674.44 

1979 536.58 554.43 647.94 8,444.73 4,989.41 2,906.58 2,553.43 1,726.54 1,283.28 

1980 1,176.44 1,126.45 1,213.31 3,048.72 980.11 746.82 440.43 462.99 425.56 

1981 143.11 169.39 354.28 373.80 356.82 1,005.23 1,486.14 962.62 1,489.54 

1982 1,067.95 995.28 1,103.84 5,095.66 3,835.18 1,906.42 2,207.75 1,490.49 1,096.81 

1983 1,178.51 1,049.69 2,918.39 2,673.12 1,732.87 2,895.48 2,170.61 1,955.70 1,624.17 

1984 1,054.52 1,136.46 2,018.22 2,792.57 1,355.09 3,874.36 1,487.91 910.39 640.28 

1985 1,093.05 1,025.21 2,382.59 2,205.73 3,059.42 3,256.16 3,307.97 4,237.63 2,958.33 

1986 1,075.24 1,031.78 2,586.03 6,240.20 4,819.94 1,996.89 1,439.34 1,198.89 1,304.18 

1987 786.09 756.94 2,208.66 1,082.19 1,512.01 857.68 938.81 748.64 501.34 

1988 185.86 184.40 597.28 1,632.23 317.46 245.71 184.15 199.91 227.94 

1989 206.52 179.92 226.09 3,991.41 1,046.46 627.07 392.47 193.84 183.18 

1990 115.72 123.90 335.12 562.63 330.54 551.34 218.44 159.09 102.58 

1991 116.64 118.11 237.90 368.49 535.15 332.26 703.82 247.24 491.01 

1992 178.86 185.44 1,195.25 1,601.06 1,074.15 338.04 582.76 626.71 1,379.21 

1993 633.34 648.52 1,030.56 3,035.47 1,167.09 1,660.48 2,689.70 3,101.35 2,653.27 

1994 721.77 657.19 1,493.26 1,414.22 1,419.85 2,017.14 4,788.48 1,286.68 1,468.29 

1995 961.89 956.20 4,703.60 2,986.93 2,517.28 975.58 1,966.52 1,170.68 1,058.24 

1996 1,131.85 1,228.75 1,358.10 9,081.42 7,784.73 3,378.43 2,384.46 1,776.22 1,180.91 

1997 1,247.10 1,116.07 1,241.41 12,957.95 4,302.94 3,612.43 5,913.32 1,707.17 1,495.42 

1998 1,036.36 1,938.97 3,146.19 2,178.62 3,876.28 3,283.43 3,006.67 1,280.92 1,104.04 

1999 784.07 740.13 2,458.02 8,787.64 6,054.47 3,804.36 2,538.75 2,595.60 5,923.41 

2000 1,167.87 1,145.50 2,465.80 2,379.87 1,634.82 2,762.09 2,394.37 1,010.30 943.01 

2001 1,097.14 1,033.33 1,171.24 8,032.35 3,960.05 3,155.68 1,921.24 3,555.77 1,644.26 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Red River of the North at Grand Forks, N. Dak

1931 161.30 273.40 477.00 1,092.00 612.30 492.30 276.80 136.30 59.50 

1932 159.70 207.30 1,173.00 3,933.00 919.50 401.10 177.60 58.60 43.40 

1933 38.60 33.60 926.90 2,254.00 767.60 428.20 116.50 41.50 31.30 

1934 39.00 40.70 419.20 1,540.00 373.30 150.90 153.30 30.60 20.70 

1935 27.70 31.80 898.10 1,521.00 856.10 503.10 666.20 404.40 183.80 

1936 58.60 54.30 63.70 4,829.00 1,482.00 274.30 88.80 32.10 20.30 

1937 18.80 2.87 42.10 1,485.00 1,636.00 922.00 767.00 1,333.00 793.80 

1938 61.30 89.50 1,309.00 954.10 4,560.16 1,992.06 698.14 190.30 208.55 

1939 237.10 228.60 454.50 3,126.00 911.76 686.66 388.44 118.80 225.75 

1940 161.30 170.00 229.10 4,088.10 1,955.26 960.86 297.54 212.70 171.05 

1941 334.25 357.95 448.25 7,013.15 2,166.31 4,704.11 987.19 756.65 1,602.40 

1942 517.65 550.65 1,659.22 5,391.68 7,597.53 4,321.16 1,085.40 916.02 2,981.90 

1943 779.57 752.24 1,369.17 19,549.58 4,988.22 10,277.28 4,943.18 2,323.65 1,626.43 

1944 724.04 659.17 700.22 3,464.25 3,580.19 6,047.24 5,959.42 5,065.99 4,210.75 

1945 1,384.14 1,412.06 9,572.80 12,063.31 5,898.09 3,171.96 1,637.71 1,027.26 1,371.31 

1946 866.70 793.64 7,127.06 9,302.44 3,502.84 2,145.24 2,358.51 1,235.27 1,263.12 

1947 1,083.56 845.15 1,487.60 20,766.44 7,180.28 10,124.72 3,829.47 1,421.52 1,408.59 

1948 1,119.45 925.34 1,420.51 20,372.66 7,221.55 2,550.92 1,746.01 1,180.02 939.09 

1949 432.56 444.58 892.02 6,945.43 2,740.34 4,876.53 3,598.71 3,107.25 1,636.74 

1950 795.97 735.36 1,371.69 26,131.93 36,660.59 9,741.36 7,382.82 2,825.83 2,274.74 

1951 1,943.99 1,831.57 2,448.44 15,915.61 7,528.31 3,998.75 2,252.74 1,100.77 1,441.77 

1952 1,742.23 1,854.85 1,976.74 19,490.74 4,518.52 2,776.83 5,578.07 1,863.41 1,324.34 

1953 582.80 638.20 2,143.13 3,356.02 3,221.57 9,203.93 4,499.46 1,937.04 1,320.55 

1954 699.63 840.56 1,700.74 4,836.90 3,618.15 3,685.52 2,179.47 992.73 771.60 

1955 547.62 631.10 768.48 6,133.00 1,878.57 2,315.56 2,054.81 1,581.43 850.08 

1956 394.89 488.50 687.85 9,495.69 5,082.60 2,827.49 1,498.16 820.71 1,478.01 

1957 358.53 373.84 1,665.43 4,700.63 3,053.65 4,055.89 5,615.44 2,535.18 4,322.94 

1958 1,209.17 1,213.82 1,935.86 2,656.83 1,429.45 1,427.24 3,726.78 863.02 568.25 

1959 268.00 347.81 1,077.84 3,150.82 1,708.28 2,611.30 1,928.06 721.99 549.09 

1960 487.02 444.34 822.64 9,146.64 3,137.38 2,534.74 1,756.98 569.40 650.38 

1961 261.09 264.69 1,782.48 1,876.94 2,257.44 913.10 418.41 314.14 396.84 

1962 172.69 229.04 459.96 11,564.09 10,635.55 19,216.17 13,656.38 4,662.79 3,133.74 

1963 1,175.58 1,040.37 2,075.06 5,858.81 3,453.97 6,237.10 2,521.59 1,243.14 1,338.03 

1964 738.75 736.88 799.90 6,651.33 4,081.50 4,620.76 2,337.89 1,223.51 897.88 

1965 888.69 1,059.99 886.26 25,120.27 8,062.63 8,502.04 4,071.00 2,130.07 2,045.48 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Red River of the North at Grand Forks, N. Dak.—Con

1966 1,783.72 1,695.15 11,566.31 25,226.85 10,588.05 4,732.77 3,033.48 3,636.81 2,423.22 

1967 1,650.13 1,519.69 3,215.33 17,063.54 9,189.82 6,333.16 3,058.45 1,312.77 974.26 

1968 538.78 521.44 2,176.57 2,713.15 1,987.24 4,614.52 4,298.01 2,313.80 1,727.73 

1969 1,499.13 1,352.63 1,972.94 30,755.19 11,011.64 4,167.73 3,315.88 1,656.67 1,570.15 

1970 1,396.87 1,471.46 1,689.22 14,546.47 8,289.48 9,829.72 3,032.84 1,281.70 1,328.86 

1971 1,093.26 1,169.63 2,669.91 7,688.63 3,168.55 2,401.14 2,257.77 1,180.01 1,405.97 

1972 1,694.08 1,477.95 9,654.19 15,018.03 7,753.08 5,099.86 2,476.30 2,393.49 2,019.62 

1973 1,121.69 1,158.14 5,632.36 2,170.03 1,577.09 1,267.46 810.27 908.15 3,237.25 

1974 1,736.91 1,564.96 1,911.13 17,185.01 13,327.97 6,164.78 3,033.73 2,920.56 1,934.14 

1975 1,315.23 1,473.65 1,928.64 19,547.38 14,598.15 6,543.22 25,216.44 3,121.16 2,334.34 

1976 1,673.37 1,660.51 3,952.37 9,483.01 2,635.69 1,818.44 1,290.70 1,055.68 760.37 

1977 306.93 280.75 726.38 1,607.10 980.61 762.27 742.28 318.40 607.58 

1978 1,259.76 1,051.58 3,322.51 31,360.03 4,307.77 2,851.35 3,178.83 1,520.81 1,082.64 

1979 648.41 677.67 1,000.43 33,608.16 17,465.14 5,711.66 5,648.18 3,276.48 1,949.22 

1980 1,362.05 1,418.94 1,988.76 9,319.95 2,010.01 1,589.80 767.70 585.19 801.93 

1981 330.89 556.60 1,283.34 1,245.52 1,658.48 1,441.49 2,491.67 1,579.47 1,919.27 

1982 1,155.40 1,102.00 2,535.10 17,957.74 6,024.38 3,439.87 3,310.81 2,071.69 1,439.05 

1983 1,514.23 1,470.52 8,104.05 7,210.21 3,135.13 5,146.13 6,232.02 2,870.15 2,644.79 

1984 1,678.96 1,867.49 6,478.97 15,541.03 3,708.58 11,967.66 3,118.36 1,519.23 1,036.77 

1985 1,399.65 1,375.45 6,630.38 4,925.14 9,029.60 7,603.36 6,084.63 6,493.94 4,823.40 

1986 1,792.33 1,726.25 7,685.94 20,822.55 14,163.20 5,511.06 3,841.64 2,330.31 3,419.87 

1987 1,681.60 1,762.99 7,942.80 8,539.02 3,654.52 2,568.91 3,439.18 2,146.83 1,196.89 

1988 501.09 558.52 3,201.80 4,719.77 1,340.12 848.81 459.57 379.72 444.48 

1989 302.81 319.49 917.34 22,731.70 3,097.30 2,151.30 1,037.51 530.97 1,002.84 

1990 257.44 286.26 1,185.98 2,753.39 1,686.61 2,290.03 1,104.76 538.21 392.84 

1991 243.25 446.45 919.48 1,853.37 3,182.54 2,276.28 3,185.50 1,074.90 1,364.19 

1992 573.68 600.80 4,586.35 2,927.03 2,152.21 2,174.35 2,825.86 1,445.83 2,189.52 

1993 852.63 1,098.50 2,374.30 14,307.97 3,289.58 4,415.36 13,527.97 16,388.06 5,361.70 

1994 1,591.97 1,512.20 8,170.47 12,561.34 6,104.84 5,392.66 13,059.52 3,512.27 3,830.71 

1995 1,812.46 1,758.59 17,885.53 18,290.95 9,235.68 3,664.23 7,527.04 2,693.10 2,171.29 

1996 2,029.07 1,741.18 5,079.22 29,092.34 20,320.01 7,577.34 3,889.33 2,788.28 1,804.91 

1997 1,884.11 1,641.39 2,189.23 58,723.64 23,799.26 8,137.32 13,799.51 3,409.46 2,508.40 

1998 1,994.68 3,588.94 14,191.91 9,681.27 13,318.75 9,369.36 12,888.60 3,098.02 2,181.38 

1999 1,670.41 1,558.15 11,602.31 26,865.60 16,744.34 9,610.46 6,560.90 5,277.17 11,223.50 

2000 1,945.21 1,948.72 8,297.54 6,480.07 4,165.79 11,511.94 10,669.53 3,075.73 2,964.28 

2001 2,537.37 2,389.64 3,268.04 38,221.82 15,204.39 9,433.97 5,671.24 5,692.97 2,760.81 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Turtle River at the mouth

1931 0.87 0.87 6.65 34.16 6.14 7.75 3.26 2.59 0.47 

1932 0.29 19.97 221.56 208.88 29.94 16.71 2.79 1.04 0.55 

1933 0.00 0.00 57.56 106.43 20.19 9.90 4.05 2.02 4.21 

1934 0.58 0.47 28.43 40.69 4.00 5.70 3.22 2.73 3.32 

1935 0.29 0.43 63.64 39.56 23.36 64.81 13.08 2.19 0.56 

1936 0.29 0.29 1.29 173.27 17.87 5.74 2.00 1.61 0.16 

1937 0.16 0.29 0.68 21.59 10.94 13.84 4.88 4.80 2.46 

1938 0.16 0.16 33.75 10.58 8.42 3.46 0.19 0.01 0.00 

1939 0.00 0.00 87.50 45.11 2.50 13.20 0.76 0.00 0.00 

1940 0.00 0.00 0.00 147.15 12.66 3.95 2.00 5.51 0.02 

1941 0.00 0.00 24.26 396.43 17.77 51.09 9.32 2.51 3.06 

1942 0.11 0.13 9.92 222.06 69.56 31.83 8.56 4.66 3.26 

1943 0.60 0.45 178.39 119.85 34.83 67.65 18.74 3.42 0.63 

1944 0.26 0.18 2.45 71.60 20.29 24.13 8.28 19.59 13.47 

1945 0.87 0.85 87.09 48.08 21.79 20.73 8.51 2.55 1.41 

1946 0.11 0.11 158.55 39.95 9.01 5.82 54.96 0.33 6.55 

1947 0.21 0.11 82.71 217.90 23.59 67.33 9.49 9.84 1.74 

1948 0.13 0.11 0.11 1,313.50 78.32 100.99 24.16 11.45 2.51 

1949 0.15 0.11 0.11 434.00 32.86 38.93 9.62 3.49 0.47 

1950 0.11 0.00 0.00 2,242.20 1,667.17 55.99 48.44 10.21 22.44 

1951 5.71 2.24 46.49 238.10 27.60 16.15 4.52 13.74 47.52 

1952 0.83 0.11 2.02 188.56 16.95 8.02 46.95 4.24 0.80 

1953 1.29 0.90 20.42 30.69 30.11 102.71 48.66 4.66 1.19 

1954 0.31 1.37 30.02 51.12 18.89 23.36 12.94 2.36 1.79 

1955 1.21 0.75 0.06 253.90 21.64 126.07 12.02 4.16 0.79 

1956 0.39 0.53 0.76 364.60 71.68 49.01 8.02 2.47 5.15 

1957 3.24 0.72 51.01 45.81 18.55 15.92 1.88 8.08 246.53 

1958 2.53 4.71 13.77 26.18 16.26 15.92 22.44 1.25 0.36 

1959 0.02 0.00 43.33 67.14 18.89 12.82 8.95 3.31 0.21 

1960 2.72 2.05 42.09 484.66 27.94 20.27 8.13 2.31 1.40 

1961 0.88 0.62 40.62 29.23 16.72 3.93 1.32 0.76 1.34 

1962 0.00 0.00 0.00 405.45 152.40 194.43 23.59 3.97 5.36 

1963 0.54 0.00 24.26 51.91 15.92 14.31 11.56 3.71 0.74 

1964 0.00 0.00 0.08 167.35 23.02 308.13 23.82 8.71 16.15 

1965 1.33 1.66 2.36 629.33 98.36 83.36 22.21 7.43 37.44 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Turtle River at the mouth—Continued

1966 5.42 1.86 540.75 445.84 169.58 39.73 52.10 25.31 9.23 

1967 4.51 5.42 108.78 604.05 218.70 36.76 7.57 2.58 0.95 

1968 2.18 1.94 113.75 56.65 23.13 61.95 66.30 15.11 15.46 

1969 1.99 0.20 0.09 712.83 36.18 43.40 18.32 4.89 12.48 

1970 4.75 0.94 2.16 702.45 180.46 65.04 17.18 14.77 12.37 

1971 4.10 5.55 71.04 378.89 58.92 55.71 36.05 6.78 4.73 

1972 8.00 5.52 331.16 547.88 159.38 70.55 12.60 6.87 3.26 

1973 4.21 6.58 223.95 57.73 22.06 16.33 6.24 3.08 5.10 

1974 1.66 3.56 2.91 722.73 184.51 110.81 26.55 8.04 6.82 

1975 7.52 6.80 26.26 638.68 163.14 66.61 34.82 4.08 2.71 

1976 4.41 5.64 193.81 202.70 26.13 10.44 3.06 5.10 2.03 

1977 0.43 0.41 2.72 24.11 13.39 8.78 6.81 1.56 2.42 

1978 4.61 2.47 244.42 662.68 67.75 34.16 11.63 2.58 6.18 

1979 2.25 2.65 3.86 1,642.78 250.27 57.19 29.55 11.34 4.03 

1980 5.61 5.32 51.25 191.91 13.54 5.61 1.98 3.16 2.98 

1981 2.59 5.44 10.54 10.65 10.89 18.30 9.70 7.38 2.93 

1982 5.82 4.76 72.43 578.18 57.58 21.88 17.17 2.72 0.32 

1983 9.55 8.61 329.00 203.29 53.04 86.59 36.20 16.18 42.07 

1984 9.02 7.68 317.86 321.76 70.91 79.35 6.36 4.31 -0.17 

1985 1.07 2.84 275.08 80.05 40.21 17.19 2.47 5.22 1.26 

1986 6.69 5.91 309.22 228.07 149.85 38.79 30.30 7.20 5.43 

1987 13.16 7.42 680.11 708.04 110.29 72.73 136.34 4.14 47.50 

1988 12.87 14.29 278.45 216.10 38.22 17.48 7.78 2.32 0.98 

1989 5.15 4.72 7.13 562.00 48.45 23.17 6.12 2.82 1.86 

1990 1.08 1.52 3.05 30.85 14.21 12.78 14.46 5.62 0.27 

1991 0.39 3.43 7.87 30.75 68.97 42.67 11.67 6.12 4.83 

1992 0.51 0.30 223.58 36.87 16.17 14.56 52.21 11.53 19.07 

1993 7.28 8.42 81.38 112.78 25.67 28.64 190.74 174.94 154.75 

1994 15.79 18.64 357.61 197.15 61.62 77.85 60.92 31.45 108.67 

1995 24.03 18.90 478.71 349.27 163.17 48.40 72.17 34.34 21.28 

1996 19.63 17.70 22.02 658.07 157.21 65.96 67.30 21.78 12.03 

1997 14.11 20.91 113.55 1,005.03 192.04 37.26 349.76 67.78 27.95 

1998 14.77 59.26 239.35 184.52 41.98 35.13 54.07 12.18 6.39 

1999 17.69 19.63 267.89 412.39 397.80 129.24 97.76 137.60 56.50 

2000 16.62 14.86 32.11 34.98 35.18 1,911.80 170.02 39.78 32.83 

2001 24.77 23.85 149.10 333.12 101.64 37.72 27.62 29.17 18.49 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Forest River at the mouth

1931 2.70 2.29 12.31 42.73 26.85 12.69 8.92 2.98 1.32 

1932 0.15 9.16 35.92 161.95 55.77 21.51 9.63 0.74 0.30 

1933 0.00 0.00 88.08 273.47 45.68 20.37 6.22 3.04 5.08 

1934 1.99 0.78 35.92 69.97 20.18 9.56 1.66 0.00 0.00 

1935 0.22 0.65 99.26 71.56 27.41 16.60 13.00 5.00 2.97 

1936 0.00 0.00 0.00 190.01 34.07 15.86 2.66 0.00 0.00 

1937 0.00 0.00 0.00 25.22 19.41 12.26 0.97 0.21 0.00 

1938 0.00 0.00 42.80 19.53 17.25 4.59 2.66 0.00 0.00 

1939 0.00 0.00 36.58 67.48 13.19 3.06 24.93 0.00 0.00 

1940 0.00 0.00 0.00 74.05 21.32 5.92 0.00 25.13 0.42 

1941 0.00 0.00 0.00 619.75 41.30 42.07 14.26 6.74 17.30 

1942 0.55 0.00 225.52 630.40 74.04 27.60 14.01 28.93 8.93 

1943 2.17 1.90 253.94 175.09 44.92 365.46 346.42 38.64 18.27 

1944 1.18 0.05 0.44 164.26 41.88 48.73 18.08 6.72 13.10 

1945 3.54 2.28 127.46 67.29 29.84 22.56 8.30 4.31 1.47 

1946 0.70 0.27 220.35 60.03 15.74 13.21 7.96 0.00 4.42 

1947 0.69 0.03 128.03 137.56 25.53 23.01 29.10 7.97 5.42 

1948 4.80 1.05 0.25 1,691.40 157.80 60.12 27.76 14.12 7.04 

1949 1.58 0.70 0.85 686.38 55.67 25.83 16.63 4.90 0.97 

1950 0.97 0.97 1.13 2,237.66 2,248.95 80.31 42.01 11.95 13.26 

1951 5.07 6.25 44.38 282.66 40.67 23.01 9.62 13.84 12.50 

1952 1.53 0.95 5.08 136.56 24.35 11.24 43.20 7.94 4.47 

1953 0.80 0.11 4.24 31.15 24.49 76.30 14.99 3.18 0.40 

1954 0.39 0.32 35.14 56.62 27.17 65.02 14.84 16.48 9.55 

1955 1.82 0.71 0.05 414.10 32.81 137.16 16.63 4.23 2.51 

1956 0.73 0.66 0.83 727.34 130.48 309.95 39.64 16.33 20.78 

1957 6.30 2.22 67.09 36.79 30.37 22.21 9.66 11.64 84.11 

1958 3.73 1.26 8.63 35.51 24.29 60.80 19.09 5.73 3.16 

1959 0.46 0.23 15.45 152.59 27.40 16.42 8.57 3.28 0.74 

1960 2.69 1.46 29.39 862.01 45.66 22.65 6.96 2.91 1.48 

1961 0.97 0.09 33.38 34.80 17.31 7.78 8.46 0.85 0.09 

1962 0.35 0.09 0.09 566.83 93.91 395.70 30.08 17.61 12.28 

1963 1.40 0.09 60.12 49.17 28.15 33.79 39.43 5.63 1.27 

1964 0.30 0.22 0.46 197.40 41.65 395.85 75.06 18.05 15.53 

1965 5.36 3.94 4.13 685.04 93.61 106.82 34.83 17.16 23.84 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Forest River at the mouth—Continued

1966 6.98 3.06 623.45 506.23 339.29 85.15 54.27 26.22 14.76 

1967 5.01 3.54 176.34 510.50 312.86 58.58 25.92 13.30 8.57 

1968 2.90 2.24 94.69 65.53 31.71 27.85 24.73 17.61 15.68 

1969 1.23 0.66 0.74 741.94 79.21 30.08 18.35 7.07 7.72 

1970 7.57 3.23 1.22 682.20 207.17 62.29 59.17 17.01 9.78 

1971 1.34 1.41 10.69 728.86 88.42 45.22 99.70 31.26 17.31 

1972 1.20 0.45 383.89 506.94 106.82 46.41 14.93 6.78 6.65 

1973 0.65 0.82 84.73 56.85 28.15 42.25 9.22 2.27 6.71 

1974 3.63 0.91 1.39 940.10 721.09 261.80 40.91 29.19 11.37 

1975 8.23 5.20 7.84 405.80 241.17 42.99 161.15 13.87 9.80 

1976 5.09 5.84 153.87 551.47 51.45 26.07 12.71 4.40 2.36 

1977 0.09 0.09 15.74 46.89 26.36 16.27 10.17 4.75 6.27 

1978 1.42 0.32 106.07 704.82 83.81 90.94 39.28 12.22 12.92 

1979 2.87 1.97 1.52 1,691.49 538.95 94.50 94.21 18.05 25.63 

1980 1.52 1.92 11.69 99.94 18.79 10.97 2.87 2.06 4.52 

1981 5.79 24.14 47.46 55.29 22.65 32.01 18.36 7.27 22.80 

1982 2.22 0.50 47.88 468.38 93.61 89.15 350.13 143.19 20.72 

1983 13.52 17.46 337.09 280.75 78.03 48.49 27.86 11.85 25.48 

1984 1.18 6.32 75.91 126.70 39.73 38.69 14.83 4.77 5.69 

1985 0.27 0.09 249.61 90.71 46.41 39.44 7.93 9.19 12.78 

1986 8.95 7.17 270.38 160.98 128.06 24.15 89.36 31.34 18.68 

1987 13.51 10.26 174.07 1,207.26 121.68 42.56 40.67 22.43 11.52 

1988 8.88 1.03 57.00 140.50 105.06 44.67 7.23 3.32 0.50 

1989 1.68 1.63 1.52 128.98 45.98 13.12 3.66 0.40 0.14 

1990 0.08 0.08 0.97 37.81 16.73 12.40 4.24 0.08 0.03 

1991 0.00 0.00 4.12 32.76 20.80 6.27 21.55 9.58 18.27 

1992 9.92 8.31 265.59 86.35 35.64 22.27 10.15 5.22 0.97 

1993 2.20 3.81 18.67 138.88 35.32 32.42 197.48 486.77 102.69 

1994 8.60 6.34 217.83 234.33 78.20 128.22 97.48 21.26 22.64 

1995 9.23 8.38 557.78 438.71 213.56 91.98 114.26 30.91 17.15 

1996 11.86 5.48 164.87 1,142.02 567.46 139.54 48.56 24.21 11.21 

1997 4.43 3.98 3.97 1,479.44 478.54 87.14 519.43 108.53 43.16 

1998 21.96 69.77 351.65 343.69 53.66 55.53 59.50 20.43 12.20 

1999 13.90 14.45 374.55 681.82 300.58 117.43 79.44 49.70 31.34 

2000 16.26 15.43 33.58 25.33 22.76 97.49 42.96 18.57 14.12 

2001 17.79 15.98 80.23 396.89 98.58 53.89 41.93 43.99 15.27 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Snake River at the mouth

1931 2.14 1.96 48.84 47.39 45.13 7.08 4.21 0.88 0.46 

1932 0.03 0.98 25.61 427.32 77.02 25.47 1.22 0.15 0.19 

1933 0.00 0.00 64.40 826.05 79.05 10.67 2.22 0.92 6.65 

1934 1.44 1.38 25.61 209.61 8.22 4.25 0.08 1.03 0.38 

1935 0.03 0.06 107.38 182.40 22.41 244.79 8.38 2.22 0.23 

1936 0.18 0.00 0.30 505.85 43.37 4.28 0.15 0.04 0.04 

1937 0.18 0.03 0.13 236.31 74.96 18.62 19.24 4.97 1.57 

1938 0.00 0.00 84.95 23.16 21.72 1.84 19.08 0.00 0.00 

1939 0.00 0.00 15.45 78.46 7.84 17.17 0.57 0.00 0.00 

1940 0.00 0.00 0.00 115.82 15.68 2.29 0.61 1.22 0.00 

1941 0.00 0.00 0.79 1,092.34 62.87 164.60 6.27 1.03 119.93 

1942 1.07 0.28 180.48 1,536.04 204.90 74.69 14.23 13.84 13.50 

1943 1.93 1.59 369.34 398.73 105.74 1,206.25 65.13 13.73 4.05 

1944 2.17 1.04 0.70 280.62 26.12 75.95 157.83 277.87 80.35 

1945 11.87 16.94 574.21 731.76 168.17 52.29 49.57 29.08 39.19 

1946 2.63 2.69 342.60 188.33 34.72 40.35 12.73 1.57 3.67 

1947 0.55 0.31 8.67 398.13 35.49 2,962.55 63.37 11.01 4.02 

1948 4.07 1.59 0.99 2,801.88 718.20 27.08 14.11 5.47 1.53 

1949 3.70 3.70 0.66 1,383.45 177.56 849.83 72.05 9.90 1.57 

1950 2.60 2.08 0.40 3,107.58 6,373.61 294.89 643.70 24.55 3.56 

1951 9.82 8.41 13.77 1,114.87 275.35 27.46 5.85 11.59 105.17 

1952 3.15 5.90 11.32 587.39 74.96 13.39 23.06 1.51 0.00 

1953 0.00 0.00 51.95 109.87 84.13 64.63 13.19 0.94 0.00 

1954 0.00 0.00 0.00 83.23 67.73 86.27 10.65 0.32 0.00 

1955 0.04 0.00 0.00 113.60 40.67 233.81 15.01 0.63 0.00 

1956 0.07 0.00 0.00 212.58 224.28 45.77 531.93 20.08 12.46 

1957 5.93 4.77 131.71 227.01 160.62 247.43 335.01 14.42 624.89 

1958 7.65 5.20 12.44 40.37 20.35 18.55 713.99 20.19 0.59 

1959 0.61 0.00 5.33 691.63 114.35 60.04 38.13 16.67 9.29 

1960 6.42 3.39 5.56 1,016.26 190.83 188.15 39.77 3.39 0.85 

1961 1.00 0.59 76.11 90.34 41.30 2.96 0.00 0.00 5.62 

1962 1.15 0.39 0.00 810.43 1,143.08 1,842.92 167.89 28.07 29.06 

1963 1.24 0.00 61.88 624.12 159.47 117.02 26.31 17.86 0.55 

1964 0.00 0.00 0.00 244.22 170.56 1,170.61 154.50 107.84 32.24 

1965 7.83 3.58 4.53 1,910.41 607.29 390.46 352.60 19.20 30.44 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Snake River at the mouth—Continued

1966 12.39 5.87 307.76 2,472.31 886.85 125.05 409.96 92.55 18.13 

1967 1.99 1.62 51.62 1,563.60 903.29 80.31 18.78 0.60 0.00 

1968 0.00 0.40 86.04 63.54 15.45 889.91 783.98 107.46 106.70 

1969 2.75 5.05 9.83 1,828.67 241.69 180.12 43.98 4.51 0.83 

1970 1.09 0.11 0.00 1,001.37 1,263.16 2,523.25 97.14 10.52 3.34 

1971 4.74 4.40 20.42 536.09 106.31 46.27 12.96 1.00 0.34 

1972 1.10 0.18 68.17 700.89 137.67 66.54 8.49 0.07 0.09 

1973 0.00 0.00 115.16 21.25 12.62 1.40 0.00 0.09 0.30 

1974 0.32 0.17 0.00 1,410.39 733.11 172.09 11.51 1.89 1.34 

1975 2.43 1.16 4.10 742.92 481.09 175.92 2,629.95 42.07 5.89 

1976 5.17 5.50 69.82 625.77 62.34 12.58 4.97 0.27 0.00 

1977 0.00 0.00 2.47 34.09 16.75 12.43 0.85 1.22 0.28 

1978 3.79 2.54 44.34 1,585.78 446.29 187.01 234.43 27.19 4.09 

1979 2.66 1.88 4.70 2,022.59 484.92 182.42 47.04 6.16 2.55 

1980 3.88 3.18 6.62 372.62 25.70 3.03 0.07 0.53 2.27 

1981 0.04 1.55 18.23 17.80 8.11 32.12 81.46 0.17 2.96 

1982 0.31 4.07 30.97 940.15 391.22 61.95 200.01 44.74 1.89 

1983 14.22 10.15 718.43 515.24 216.84 234.43 75.34 3.82 1.20 

1984 5.02 3.21 190.94 373.28 85.66 346.86 11.82 0.56 0.05 

1985 0.43 0.43 227.34 275.33 160.24 969.45 284.91 112.82 137.29 

1986 11.35 10.09 412.99 1,040.09 708.26 131.56 10.67 2.08 0.71 

1987 1.83 1.83 391.15 387.51 74.96 34.65 6.00 1.30 0.09 

1988 0.27 0.18 1.16 189.62 45.89 102.87 3.27 0.03 0.04 

1989 0.03 0.04 0.07 764.76 108.61 107.46 11.28 0.33 0.01 

1990 0.00 0.00 31.83 44.01 10.48 17.94 8.60 0.07 0.00 

1991 0.00 0.04 0.28 0.65 16.34 12.65 155.34 12.99 1.47 

1992 2.58 1.35 283.27 339.23 145.51 20.07 46.84 2.11 2.79 

1993 2.31 2.11 29.82 398.62 60.73 196.47 374.58 1,010.56 1,041.92 

1994 8.17 3.43 158.51 176.42 117.47 41.39 557.01 93.51 529.85 

1995 26.82 11.38 1,108.59 452.89 414.73 46.14 358.91 43.90 38.81 

1996 7.52 4.31 4.90 1,902.32 3,425.28 54.91 41.12 13.31 4.60 

1997 8.41 7.16 8.21 3,195.86 579.55 67.03 907.64 16.34 11.77 

1998 14.37 91.62 845.17 439.95 410.55 719.98 761.88 18.14 10.92 

1999 6.18 8.44 275.33 2,957.27 1,183.32 2,001.13 642.56 494.95 684.26 

2000 10.95 213.46 301.80 427.37 131.64 968.02 231.84 90.72 25.57 

2001 19.66 17.10 88.03 2,201.11 551.16 242.18 32.13 386.72 15.05 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Park River at the mouth

1931 0.03 0.58 39.10 186.92 18.30 4.45 1.44 0.28 0.15 

1932 0.00 2.75 21.07 259.92 31.77 8.17 0.39 0.00 0.00 

1933 0.00 0.00 56.20 578.00 32.65 17.86 0.73 0.29 0.00 

1934 0.00 0.07 21.07 109.59 3.16 0.60 0.02 0.00 0.12 

1935 0.00 0.00 96.80 92.59 8.89 5.72 2.93 0.73 0.00 

1936 0.00 0.00 0.00 318.92 17.57 19.03 0.05 0.00 0.00 

1937 0.00 0.00 0.00 126.73 30.89 5.40 6.95 1.71 0.00 

1938 0.00 0.00 75.45 7.59 8.61 0.51 6.90 0.00 0.00 

1939 0.00 0.00 12.32 33.30 3.00 4.14 0.18 0.00 0.00 

1940 0.00 0.00 0.00 53.39 6.15 0.55 0.20 0.40 0.00 

1941 0.00 0.00 0.53 811.08 25.76 17.57 2.17 0.34 46.55 

1942 0.00 0.00 168.17 1,226.24 87.25 24.01 5.09 4.95 4.82 

1943 0.13 0.15 360.23 238.98 44.06 296.15 220.46 18.59 0.37 

1944 0.01 0.00 0.46 156.09 10.41 12.18 3.54 16.69 11.43 

1945 0.36 0.31 576.03 188.69 83.00 46.11 10.75 1.24 0.89 

1946 0.14 0.17 332.55 96.24 13.97 7.22 1.86 0.19 0.55 

1947 0.00 0.00 6.66 238.56 14.27 30.45 90.76 18.59 5.48 

1948 0.67 0.16 0.65 2,541.56 318.40 55.34 66.17 44.65 3.41 

1949 0.31 0.27 0.44 1,080.13 75.24 16.83 3.34 1.68 0.09 

1950 0.14 0.14 0.24 2,881.56 3,031.73 95.15 31.03 18.88 1.84 

1951 1.51 0.78 17.00 465.18 49.48 9.41 1.03 4.36 60.46 

1952 0.13 0.00 0.28 65.89 12.06 0.58 0.33 0.00 32.35 

1953 0.28 0.00 3.12 11.37 7.70 14.79 1.68 0.07 0.29 

1954 0.02 2.05 8.29 22.62 19.91 191.62 27.81 8.84 7.13 

1955 0.27 0.27 1.12 625.63 67.92 112.43 15.37 1.90 17.27 

1956 0.86 0.86 17.58 1,425.48 654.93 241.38 29.55 5.81 11.84 

1957 3.03 8.35 81.64 68.30 34.24 16.08 3.61 7.68 222.20 

1958 3.18 2.73 5.96 26.15 6.66 4.78 5.03 0.97 0.86 

1959 1.41 0.86 1.79 342.26 40.39 9.42 5.66 0.91 0.87 

1960 0.92 0.88 2.32 1,324.33 50.93 17.40 2.40 0.90 1.48 

1961 0.86 0.86 5.31 18.56 4.27 0.86 0.95 0.94 0.92 

1962 0.98 4.87 15.19 1,007.65 152.08 341.66 28.09 16.96 1.03 

1963 0.86 1.19 43.43 36.97 13.65 155.01 26.04 13.79 0.86 

1964 0.96 1.88 1.88 312.20 86.21 843.92 94.84 4.71 2.56 

1965 1.01 2.89 9.05 1,254.92 239.04 125.58 33.07 15.40 56.20 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Park River at the mouth—Continued

1966 3.73 1.13 418.97 896.52 646.44 125.15 199.95 49.61 3.83 

1967 2.41 2.69 156.11 895.39 751.84 34.97 3.76 0.98 0.86 

1968 0.89 3.17 118.03 66.05 75.37 34.82 14.62 1.25 1.02 

1969 0.97 3.99 12.13 1,208.42 45.66 22.09 11.28 1.47 4.15 

1970 1.23 1.03 1.70 891.18 304.91 57.51 22.82 1.29 0.87 

1971 0.87 1.73 24.74 1,231.74 84.89 111.82 110.21 8.12 0.91 

1972 0.86 6.16 451.71 587.29 84.60 14.85 1.18 0.90 3.66 

1973 1.85 1.29 88.95 40.48 19.01 14.69 1.42 2.20 1.69 

1974 3.06 3.36 12.80 1,515.40 1,007.58 148.27 9.03 7.51 1.98 

1975 7.85 5.38 5.96 346.34 214.44 23.40 117.39 1.59 1.26 

1976 8.37 7.52 48.76 763.32 40.36 120.87 6.67 1.86 1.82 

1977 3.80 3.54 9.30 13.20 7.90 3.04 0.98 0.92 0.87 

1978 4.37 3.06 28.89 1,215.79 145.85 33.86 7.82 1.58 4.03 

1979 2.36 2.15 4.43 2,038.28 417.92 69.80 80.43 10.08 7.63 

1980 4.49 2.95 4.38 131.00 19.20 37.08 2.22 4.12 59.11 

1981 7.89 63.19 158.48 152.45 41.70 74.61 86.75 14.29 15.83 

1982 7.83 5.08 41.19 699.41 163.74 143.85 372.81 56.84 2.62 

1983 19.47 14.62 561.79 449.78 85.55 109.19 31.30 2.24 0.69 

1984 1.10 2.75 51.99 109.41 31.18 25.34 3.75 2.33 0.45 

1985 1.21 1.38 307.23 97.39 32.03 20.88 4.75 38.30 4.18 

1986 11.82 15.83 320.95 274.45 157.03 27.00 81.45 34.46 12.62 

1987 0.84 3.05 137.07 1,388.81 69.79 21.29 14.07 7.21 0.61 

1988 0.55 1.39 5.81 60.11 12.04 8.47 2.31 0.85 0.54 

1989 0.47 0.47 3.75 45.93 16.45 2.80 1.36 0.79 0.57 

1990 0.35 0.32 0.86 13.73 6.78 2.75 0.72 0.60 0.43 

1991 0.33 0.35 0.40 0.38 7.75 2.66 24.12 3.87 2.10 

1992 14.16 6.79 502.81 305.98 52.86 34.22 8.37 6.57 0.47 

1993 0.93 15.64 29.97 129.68 87.75 39.64 583.44 832.56 106.44 

1994 9.44 8.39 279.97 311.47 160.54 53.38 31.52 3.51 0.54 

1995 1.52 1.42 919.47 608.21 175.76 43.90 63.44 34.66 7.55 

1996 0.86 9.61 13.63 1,506.70 724.31 106.04 15.69 10.72 1.13 

1997 3.44 3.64 13.56 2,520.98 587.08 63.99 646.04 30.87 5.72 

1998 9.09 33.42 711.80 972.28 141.58 185.91 149.93 7.15 3.75 

1999 3.91 4.14 219.73 855.84 339.18 122.30 38.47 19.99 4.70 

2000 3.50 3.82 11.72 8.76 9.06 52.60 34.48 4.48 1.39 

2001 6.98 5.71 47.48 1,004.82 253.27 104.19 22.54 39.16 0.57 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Red River of the North at Drayton, N. Dak.

1931 157.52 271.28 492.19 1,164.16 638.05 576.97 336.18 154.88 64.30 

1932 155.93 206.07 1,254.05 4,410.11 973.64 512.41 218.16 66.87 46.92 

1933 36.58 33.81 981.79 2,472.58 807.04 895.42 144.65 47.44 33.85 

1934 36.97 40.90 430.35 1,664.17 381.48 172.12 189.02 35.03 22.40 

1935 26.07 32.01 950.10 1,642.83 903.96 383.56 791.20 457.01 198.33 

1936 56.03 54.46 60.71 5,768.00 1,826.00 398.90 117.80 50.10 27.40 

1937 17.55 2.94 39.48 1,729.00 1,952.00 968.40 907.65 1,497.40 854.95 

1938 58.66 89.47 1,405.51 1,011.75 5,143.24 2,248.03 828.01 215.80 224.98 

1939 233.42 227.10 468.08 3,473.63 965.11 575.81 467.57 135.01 243.51 

1940 157.52 169.22 229.66 4,591.01 2,132.85 918.97 360.56 241.07 184.57 

1941 331.44 354.55 461.38 8,045.22 2,372.63 4,585.65 1,160.59 852.32 1,724.24 

1942 518.64 543.43 1,793.71 11,448.68 7,905.53 4,358.62 1,350.19 1,044.80 3,212.02 

1943 786.63 742.91 1,438.75 21,879.58 5,784.83 10,651.08 5,581.04 2,598.17 1,749.31 

1944 728.89 650.42 727.78 3,840.80 3,963.06 6,645.27 6,687.26 5,648.71 4,522.13 

1945 1,413.65 1,386.95 11,018.32 15,743.31 6,816.09 3,514.96 1,899.49 1,154.25 1,473.26 

1946 876.62 782.52 8,052.29 12,191.44 3,723.84 2,231.24 2,697.68 1,387.18 1,353.97 

1947 1,100.92 832.50 1,592.08 24,585.22 10,054.28 10,944.72 4,809.47 1,770.52 1,514.81 

1948 1,137.98 911.07 1,487.21 24,235.00 12,104.55 3,144.92 2,119.01 1,323.64 1,007.63 

1949 430.97 439.73 923.50 11,605.43 3,060.34 5,493.53 3,717.71 3,307.25 1,761.74 

1950 812.97 733.56 1,293.69 33,151.93 59,040.59 14,021.36 8,084.82 3,121.83 2,348.74 

1951 1,988.99 1,840.57 2,460.44 18,705.61 8,357.31 4,377.75 2,444.74 1,232.77 1,725.77 

1952 1,634.23 1,861.85 1,997.74 19,450.74 5,734.52 2,842.83 5,632.07 2,146.41 1,385.34 

1953 607.00 650.70 1,906.13 3,847.02 3,218.57 9,097.93 5,209.46 2,130.04 1,420.55 

1954 696.43 833.06 1,681.74 5,499.90 3,964.15 4,091.52 2,326.47 1,105.83 768.90 

1955 545.02 617.20 745.98 7,808.00 2,254.57 3,094.56 2,172.81 1,689.43 933.68 

1956 385.63 470.34 672.59 11,499.83 8,262.74 4,036.63 2,595.30 1,030.75 1,644.15 

1957 384.66 372.97 1,434.66 5,141.86 3,698.88 3,639.12 6,719.67 2,679.41 5,450.17 

1958 1,239.47 1,229.12 1,903.16 3,038.13 1,600.75 1,622.54 4,071.08 1,016.82 605.85 

1959 261.90 357.41 931.74 5,162.12 1,873.58 2,767.60 2,211.36 853.89 623.69 

1960 561.42 527.64 812.44 13,873.94 3,801.68 2,744.04 2,134.28 653.60 775.18 

1961 302.39 276.69 1,773.78 2,275.24 2,492.74 1,080.40 490.81 357.94 431.74 

1962 175.49 216.24 427.26 15,015.39 10,805.02 23,297.53 14,658.59 5,764.74 3,294.41 

1963 1,214.88 1,057.67 1,857.36 6,523.11 3,623.46 6,504.47 2,914.92 1,303.18 1,345.91 

1964 751.26 765.89 790.61 7,924.74 4,744.10 7,555.24 3,249.33 1,533.96 895.27 

1965 829.30 1,024.50 944.87 25,951.68 12,984.23 9,420.52 4,792.44 2,219.22 2,087.47 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Red River of the North at Drayton, N. Dak.—Conti

1966 1,958.13 1,710.56 8,980.72 38,258.26 14,119.65 5,401.25 3,660.92 3,655.96 2,552.21 

1967 1,658.54 1,469.10 2,721.74 22,854.95 14,441.42 6,340.64 3,185.89 1,451.92 994.75 

1968 472.79 518.35 2,013.98 3,704.56 2,293.84 5,630.00 5,846.45 2,730.95 2,082.72 

1969 1,530.54 1,418.04 2,016.35 29,546.60 17,673.24 4,711.21 3,620.32 1,821.82 1,615.14 

1970 1,368.28 1,337.87 1,558.63 17,737.88 13,996.08 12,510.20 3,865.28 1,323.85 1,376.85 

1971 1,059.67 1,148.04 2,888.32 11,724.04 3,615.15 2,656.62 2,607.21 1,289.16 1,589.96 

1972 1,729.49 1,448.36 8,316.60 21,549.44 9,328.68 5,983.34 2,597.74 2,567.64 2,199.61 

1973 1,125.10 1,194.55 6,272.77 2,662.44 1,797.69 1,439.94 831.61 975.50 3,184.24 

1974 1,781.32 1,580.37 1,880.54 19,466.42 18,439.57 7,871.26 3,473.17 3,455.71 2,114.13 

1975 1,344.64 1,476.06 1,876.05 17,088.79 22,849.75 6,342.70 28,188.88 4,122.31 2,591.33 

1976 1,600.14 1,692.28 3,548.14 13,547.78 3,138.64 2,178.27 1,546.43 1,244.84 779.29 

1977 290.66 268.08 662.71 2,066.43 1,085.81 890.86 790.74 336.39 540.54 

1978 1,319.39 1,064.21 2,991.14 37,921.66 6,759.58 3,500.04 3,826.39 1,655.11 1,190.21 

1979 691.67 719.47 919.43 31,389.77 31,225.73 6,406.77 6,143.57 3,318.42 2,105.92 

1980 1,411.77 1,480.77 1,791.72 10,655.41 2,236.64 1,672.40 859.19 621.04 883.28 

1981 343.90 511.44 1,581.39 1,543.30 1,672.51 1,483.13 2,852.48 1,621.43 2,012.78 

1982 1,132.16 1,073.26 2,102.05 24,207.88 7,814.29 3,793.03 4,357.87 2,466.71 1,435.57 

1983 1,523.15 1,470.32 9,739.79 11,104.86 3,528.20 5,232.93 6,755.66 3,143.84 3,099.65 

1984 1,582.84 1,638.28 5,316.74 19,321.62 4,108.09 12,357.49 3,389.14 1,481.15 1,057.93 

1985 1,340.34 1,344.12 7,282.01 5,780.08 9,222.48 8,348.33 7,032.94 7,271.17 5,033.11 

1986 1,882.44 1,581.37 6,459.02 22,883.67 16,396.09 5,757.18 4,236.52 2,639.91 3,239.22 

1987 1,813.64 1,647.98 7,671.74 16,153.63 3,623.11 3,071.60 2,983.01 2,737.43 1,278.68 

1988 511.71 553.39 2,683.67 6,651.54 1,673.27 1,155.55 516.31 345.55 402.25 

1989 296.16 320.18 836.85 24,781.53 4,346.37 2,396.21 1,325.54 543.34 1,108.67 

1990 244.55 282.40 1,238.62 3,126.59 1,700.18 2,203.60 1,270.98 525.08 402.21 

1991 237.18 433.97 837.38 2,162.59 3,107.83 2,323.57 3,341.78 1,148.73 1,420.78 

1992 577.20 578.76 5,256.14 4,440.14 2,834.29 2,370.50 3,122.21 1,564.98 2,631.32 

1993 858.40 1,008.71 1,756.78 15,545.25 3,806.61 4,508.61 12,068.85 20,917.17 7,023.11 

1994 1,562.84 1,483.02 9,147.35 15,652.28 6,445.11 5,710.90 14,054.61 3,911.98 4,134.55 

1995 1,961.44 1,745.45 18,237.61 25,120.86 10,367.48 4,016.14 8,048.37 2,768.63 2,313.88 

1996 2,052.98 1,799.14 5,025.17 31,644.46 31,169.06 10,943.97 4,197.00 3,086.78 1,897.30 

1997 1,985.99 1,623.30 2,314.13 57,225.90 36,359.41 8,675.92 15,103.64 3,802.98 2,821.03 

1998 2,360.56 2,668.72 16,553.81 12,891.43 13,571.02 9,680.76 15,786.19 3,570.05 2,316.84 

1999 1,869.47 1,790.15 7,990.37 40,577.67 20,345.67 12,115.57 8,075.14 6,253.63 12,026.89 

2000 2,029.13 1,909.56 8,755.46 7,003.19 4,436.75 12,234.37 14,288.01 3,307.83 2,960.39 

2001 2,562.38 2,446.58 3,380.00 37,544.26 24,696.13 10,619.07 6,056.59 6,898.91 2,966.18 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Pembina River at the mouth

1931 8.16 7.48 51.66 529.01 119.45 25.94 12.56 2.41 0.45 

1932 0.15 3.91 16.11 483.30 215.99 82.81 24.54 7.10 2.14 

1933 0.00 0.00 20.46 823.62 644.94 371.96 86.65 31.64 33.61 

1934 5.37 5.45 85.94 392.33 178.54 78.74 23.15 1.59 0.12 

1935 0.00 0.00 14.40 164.68 74.67 125.85 72.58 27.33 17.33 

1936 0.64 0.04 0.00 778.60 498.28 228.55 66.30 24.08 29.43 

1937 0.63 0.00 0.00 128.11 87.00 76.18 16.63 14.54 0.47 

1938 0.00 0.00 205.02 115.42 91.07 42.57 14.54 0.06 0.00 

1939 0.00 0.00 1.28 62.64 20.54 14.79 0.87 0.00 0.00 

1940 0.00 0.00 0.00 195.41 52.18 10.36 0.78 7.64 0.02 

1941 0.00 0.00 0.00 1,395.35 419.35 230.04 66.87 28.78 186.81 

1942 7.33 1.85 116.23 2,635.32 1,170.47 423.95 141.19 163.95 108.81 

1943 8.25 6.33 314.82 734.95 394.94 612.17 322.18 215.34 185.62 

1944 8.80 3.70 3.79 449.91 239.47 291.52 596.70 854.20 540.51 

1945 52.54 57.20 1,239.59 1,255.30 898.31 535.78 312.10 154.99 110.60 

1946 12.97 12.31 818.03 770.35 330.36 133.56 76.94 33.86 27.78 

1947 1.86 1.22 2.33 835.40 336.85 309.93 116.45 137.76 72.19 

1948 19.88 7.01 7.40 1,666.23 1,094.71 465.19 376.04 222.93 125.22 

1949 14.21 12.41 15.56 2,928.84 1,661.59 693.76 284.39 148.59 74.54 

1950 9.79 7.77 11.11 2,301.59 4,142.44 1,366.22 650.44 423.63 237.30 

1951 35.90 27.82 110.41 1,137.32 579.12 292.71 128.03 80.19 56.95 

1952 4.53 3.59 13.88 416.42 226.09 130.95 75.51 22.62 6.41 

1953 1.52 0.71 6.53 99.22 106.04 208.38 99.78 79.48 20.17 

1954 2.71 3.13 28.81 195.05 139.46 556.97 710.65 417.36 231.83 

1955 13.81 20.44 18.23 1,993.96 924.74 658.74 417.11 117.13 64.00 

1956 17.71 19.56 23.06 2,006.83 2,950.39 997.29 426.59 200.07 178.68 

1957 23.33 11.65 230.48 357.84 272.27 178.16 84.38 103.07 182.47 

1958 42.38 28.62 51.56 252.53 148.50 52.83 70.54 9.87 6.42 

1959 6.66 6.00 17.12 783.90 233.06 168.00 49.80 22.50 19.71 

1960 75.08 46.86 29.82 2,402.12 1,392.64 509.08 214.94 100.62 49.22 

1961 9.34 5.51 88.91 299.01 199.19 61.30 16.66 5.33 5.95 

1962 5.09 2.99 3.79 1,038.72 639.17 510.50 184.11 116.70 125.90 

1963 32.55 16.52 108.02 232.33 226.07 483.91 228.97 156.82 99.73 

1964 9.90 8.34 4.76 563.95 445.98 452.89 131.05 65.42 93.84 

1965 17.34 11.83 19.55 1,467.14 1,047.66 575.51 218.92 95.69 127.51 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Pembina River at the mouth—Continued

1966 36.44 25.84 513.77 2,138.10 1,429.62 438.62 344.80 142.04 57.77 

1967 17.45 17.32 124.98 1,374.08 1,591.47 330.42 117.35 43.13 24.89 

1968 19.78 16.40 214.22 281.65 266.77 121.99 90.28 166.87 366.18 

1969 31.03 26.99 42.68 3,898.80 1,951.93 666.65 395.59 191.75 126.43 

1970 35.50 33.22 28.55 2,231.21 2,945.66 1,634.95 844.90 342.50 194.44 

1971 34.90 20.81 22.90 3,130.83 1,667.00 737.15 398.31 278.88 164.77 

1972 24.49 21.32 542.83 1,653.75 978.00 380.50 220.32 190.30 123.54 

1973 13.07 13.91 192.48 141.87 100.14 66.08 77.17 68.21 67.27 

1974 23.18 15.91 44.63 3,752.94 5,394.03 1,892.33 548.89 156.69 104.16 

1975 27.28 20.44 19.82 454.32 1,328.23 686.82 279.52 114.45 60.73 

1976 25.37 28.66 45.88 3,198.21 1,492.37 608.23 263.29 94.67 48.70 

1977 8.57 8.52 36.96 83.22 96.58 65.12 45.50 13.10 34.52 

1978 13.72 25.05 39.04 1,754.12 624.66 209.92 71.36 51.78 52.76 

1979 10.20 26.98 59.81 2,709.61 3,912.45 955.79 352.28 96.63 128.03 

1980 19.92 17.07 27.16 311.34 92.51 41.48 15.80 43.29 102.60 

1981 14.13 74.39 194.11 355.01 202.36 129.13 49.50 36.60 49.80 

1982 5.49 3.17 70.02 884.43 773.08 616.36 313.14 156.07 87.61 

1983 15.65 7.84 326.28 1,239.18 522.54 305.00 86.72 29.75 23.14 

1984 1.76 1.05 34.40 212.09 196.91 166.05 59.52 11.53 13.91 

1985 1.22 1.12 714.60 999.47 310.94 174.51 177.84 174.28 103.19 

1986 18.70 10.87 807.71 1,285.59 997.37 424.16 254.83 171.33 129.01 

1987 17.07 21.19 159.22 2,769.63 957.88 293.83 128.34 66.81 72.39 

1988 5.62 3.18 60.26 187.52 77.03 20.08 6.90 3.00 2.36 

1989 1.27 0.88 43.64 220.98 121.16 74.15 17.92 7.13 1.61 

1990 1.24 1.19 5.97 338.83 146.29 208.18 68.65 12.24 6.00 

1991 1.00 1.25 12.45 77.95 108.72 206.03 284.84 121.77 30.57 

1992 10.19 10.05 540.08 2,650.51 953.06 259.25 119.90 41.41 35.57 

1993 6.55 5.01 90.57 681.29 399.28 284.83 994.77 1,410.29 740.99 

1994 54.15 42.25 513.14 1,361.31 592.99 249.58 197.68 148.49 205.36 

1995 137.28 75.76 1,564.29 4,869.37 3,358.48 1,342.14 543.79 912.73 379.14 

1996 27.91 16.54 109.62 3,901.80 3,278.30 1,019.44 524.38 341.42 212.25 

1997 46.26 43.44 84.28 5,352.05 5,761.98 1,051.34 2,209.14 474.39 194.83 

1998 38.96 40.31 846.43 5,541.05 1,709.97 684.64 531.74 304.77 166.92 

1999 29.34 28.83 415.19 1,589.16 1,829.06 1,976.80 819.96 258.64 139.36 

2000 33.94 36.41 176.40 155.86 121.18 119.34 64.02 64.81 51.51 

2001 20.03 15.51 57.46 3,594.15 1,924.17 708.74 347.97 263.40 129.32 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Red River of the North at Emerson, Manitoba

1931 176.00 199.60 959.60 3,385.00 881.00 660.10 356.40 157.50 81.00 

1932 166.50 138.00 1,364.00 7,809.00 1,925.00 586.00 256.10 62.50 40.00 

1933 54.00 49.40 861.90 5,839.00 1,548.00 1,026.00 253.40 73.10 45.90 

1934 54.30 32.60 491.80 2,178.00 662.60 196.10 138.20 46.60 23.80 

1935 14.10 27.00 749.00 3,325.00 1,173.00 438.20 1,082.00 514.10 268.70 

1936 56.80 54.00 58.20 6,739.00 2,602.00 583.30 120.60 79.30 66.80 

1937 7.05 1.21 2.25 2,025.00 2,886.00 1,059.00 830.40 1,565.00 818.30 

1938 53.30 75.90 1,453.00 1,282.00 4,870.16 2,584.06 855.64 218.10 193.75 

1939 197.60 255.40 259.90 3,718.00 1,193.16 658.76 566.64 188.10 230.65 

1940 135.30 148.20 224.30 5,085.10 2,232.26 1,053.06 358.04 255.70 187.15 

1941 312.05 348.05 361.85 13,650.15 3,120.31 5,284.11 1,426.89 756.05 1,853.40 

1942 537.25 612.55 1,998.22 16,578.68 9,868.53 4,909.16 1,244.40 1,138.02 3,029.90 

1943 804.67 771.54 1,508.17 24,369.58 6,486.22 12,327.28 6,468.18 2,625.65 1,828.43 

1944 689.84 743.57 834.12 4,502.25 4,005.19 7,569.24 6,866.42 6,038.99 5,952.75 

1945 1,301.14 1,404.06 9,600.80 20,023.31 8,682.09 4,053.96 2,197.71 1,319.26 1,811.31 

1946 948.40 817.24 6,413.06 14,401.44 4,155.84 2,322.24 2,561.51 1,281.27 1,242.12 

1947 1,039.56 903.45 1,167.60 18,976.44 11,634.28 11,854.72 5,327.47 2,037.52 1,586.59 

1948 1,097.45 856.84 1,230.51 25,462.66 19,454.55 3,906.92 3,191.01 1,684.02 1,056.49 

1949 464.46 454.58 809.12 14,885.43 5,175.34 6,103.53 3,706.71 3,331.25 1,830.74 

1950 842.27 751.86 1,241.49 28,571.93 72,970.59 20,961.36 9,731.82 3,601.83 2,665.74 

1951 2,067.99 1,810.57 2,466.44 21,185.61 10,195.31 4,852.75 2,745.74 1,448.77 1,969.77 

1952 1,783.23 1,899.85 2,017.74 20,010.74 6,863.52 3,098.83 5,834.07 2,310.41 1,439.34 

1953 616.90 642.00 1,602.13 4,268.02 3,301.57 9,148.93 5,504.46 2,202.04 1,417.55 

1954 721.13 834.96 1,460.74 5,850.90 4,332.15 4,681.52 3,047.47 1,560.53 972.80 

1955 554.12 616.80 738.48 11,135.00 3,396.57 4,364.56 2,642.81 1,820.43 1,012.88 

1956 393.63 474.74 657.99 13,319.83 14,589.74 5,500.63 4,184.30 1,278.75 2,056.15 

1957 386.36 353.77 1,559.66 6,167.86 4,507.88 4,008.12 9,140.67 2,945.41 6,446.17 

1958 1,267.58 1,249.23 1,877.27 3,383.24 1,722.86 1,571.65 4,137.19 1,046.03 585.96 

1959 242.81 318.22 789.75 6,207.23 2,215.69 2,928.71 2,147.47 837.10 620.90 

1960 607.71 522.23 740.03 16,915.33 5,231.07 3,048.43 2,267.67 680.69 711.77 

1961 311.38 234.38 1,829.17 2,771.63 2,519.13 1,132.79 461.60 373.23 331.63 

1962 174.18 214.53 374.25 15,676.78 12,894.41 25,308.92 15,749.98 5,991.13 3,273.80 

1963 1,119.27 1,013.06 1,633.75 7,941.50 3,852.85 7,484.86 3,115.31 1,447.57 1,367.24 

1964 745.55 758.18 785.90 8,833.13 5,500.49 9,584.63 3,648.72 1,555.35 877.70 

1965 855.69 1,043.39 912.06 25,623.07 18,535.62 10,273.91 5,391.83 2,523.61 2,273.80 

Year January February March April May June July August September 
Estimated naturalized streamflow, in cubic feet per second, for the Red River of the North at Emerson, Manitoba—Con

1966 1,773.52 1,533.95 7,163.11 45,689.65 19,971.04 6,514.64 4,833.31 3,930.35 3,020.54 

1967 1,581.93 1,398.49 2,599.13 25,566.34 19,922.81 6,897.03 3,497.28 1,625.31 1,074.98 

1968 441.18 477.64 1,739.37 5,057.95 2,612.23 6,074.39 6,974.84 3,454.34 3,183.05 

1969 1,702.93 1,456.43 2,040.74 31,227.99 26,354.69 6,106.62 4,097.04 2,233.44 1,805.59 

1970 1,442.67 1,349.26 1,597.02 19,579.27 23,017.53 16,991.61 5,655.00 1,808.47 1,581.30 

1971 1,029.06 1,017.13 2,212.71 15,065.43 5,622.60 3,481.03 3,046.93 1,617.78 1,681.41 

1972 1,832.88 1,598.75 7,896.99 23,230.83 11,049.13 6,272.75 2,686.46 2,609.26 2,184.06 

1973 1,112.49 1,114.94 5,988.16 2,920.83 1,940.14 1,552.35 876.63 954.72 2,748.69 

1974 1,751.71 1,597.76 1,890.93 19,857.81 29,841.02 10,999.67 3,921.89 3,487.33 2,203.58 

1975 1,331.03 1,454.45 1,845.44 13,760.18 27,271.20 7,296.11 27,970.60 4,833.93 2,677.78 

1976 1,494.86 1,608.00 3,047.92 17,679.50 4,522.39 2,641.00 1,743.34 1,202.70 798.44 

1977 275.58 258.40 639.24 2,375.35 1,351.73 1,077.91 790.58 356.08 558.28 

1978 1,203.66 928.88 2,563.44 37,212.93 9,573.97 3,573.36 3,733.27 1,849.82 1,240.75 

1979 532.43 578.85 817.98 28,214.42 48,359.05 7,851.36 6,313.27 3,353.89 2,240.83 

1980 1,380.49 1,354.46 1,624.11 10,760.62 2,569.90 1,776.72 968.92 623.06 883.23 

1981 334.72 471.20 1,822.36 2,077.76 1,696.57 1,757.83 2,828.59 1,634.22 1,929.43 

1982 1,174.01 1,090.21 1,913.06 22,640.52 8,877.37 4,351.93 4,205.35 2,642.85 1,530.10 

1983 1,532.02 1,379.75 9,773.71 12,696.79 4,089.88 4,949.51 6,603.91 2,763.79 2,961.28 

1984 1,383.28 1,331.62 3,771.12 19,222.93 4,115.59 12,019.45 3,460.68 1,573.72 1,047.04 

1985 1,233.27 1,181.22 7,306.51 7,418.51 9,099.57 8,036.43 7,450.87 7,371.50 5,992.10 

1986 1,922.13 1,714.99 7,241.68 28,065.56 21,848.13 6,690.26 4,490.07 2,773.12 3,171.96 

1987 1,775.43 1,595.55 6,792.92 23,486.03 4,440.04 3,771.35 3,230.75 2,850.26 1,300.78 

1988 522.65 551.63 2,523.63 7,025.45 1,690.70 1,299.24 634.90 355.38 412.05 

1989 290.70 344.52 809.92 22,362.58 6,656.90 2,796.34 1,321.12 525.20 1,113.04 

1990 243.96 292.96 1,269.56 3,810.55 1,848.89 2,393.02 1,354.65 557.28 411.24 

1991 229.11 392.03 753.43 2,367.20 3,184.50 2,574.68 4,136.27 1,342.21 1,605.46 

1992 609.52 632.40 7,425.18 10,366.00 4,687.87 2,702.86 3,116.61 1,286.79 2,701.47 

1993 905.07 1,027.88 1,496.02 15,546.52 4,028.41 4,555.34 11,840.29 26,338.74 9,139.35 

1994 1,520.31 1,499.36 7,130.81 17,673.72 7,160.02 5,741.36 13,457.00 4,344.10 4,700.81 

1995 1,954.89 1,757.77 17,859.17 33,312.38 13,408.78 5,542.16 8,557.48 3,826.60 2,778.50 

1996 1,891.82 1,617.92 3,823.08 29,676.37 41,120.55 14,885.89 4,868.37 3,240.18 1,923.39 

1997 1,988.59 1,857.81 2,249.86 51,407.14 53,510.41 10,468.02 19,016.12 4,448.27 3,055.76 

1998 2,031.35 2,518.38 20,755.61 19,951.70 14,642.09 10,668.87 16,528.75 3,636.47 2,483.84 

1999 2,175.64 1,995.25 7,352.51 45,988.52 21,816.74 14,626.94 9,570.58 6,195.65 11,368.47 

2000 2,106.32 1,821.61 8,750.57 7,184.36 4,496.58 11,706.55 16,491.60 3,742.14 3,595.76 

2001 2,568.38 2,347.60 3,728.09 40,225.23 30,927.55 11,690.42 7,171.46 9,236.97 2,861.73 

Year January February March April May June July August September