Arizona republican., 1907-06-05
WEEKLY WEATHER BULLETIN.
For the Week Ending June 8, 1907.
GENERAL SUMMARY.

Cloudy and threatening weather pre-
vailed generally during the early part
of the week; during the latter part
the weather was clear to partly cloudy
without precipitation. On Tuesday
and "Wednesday. rain hail, sleet. snow
and thunderstorms occurred in the
northern counties, and on Tuesday
and Wednesday, rain, hailstorms and
| thunderstorms occurred generally over
the entire Territory, except the extreme
! southwest section, which was rainless.
The remaining days of the week We're
clear. The sunshine was greatly de-
ficient. and the relative humidity was
| 20 TO 30 per cent greater. There We're
numerous sandstorms, altho the wind
force was somewhat less than that of
the preceding week. There We're
clear days, partly cloudy days, and
cloudy days. The prevailing wind
directions and average wind velocities
were as follows: For the northern
counties the prevailing wind direction
was north. and the average wind-veloc-
ity 6 miles per hour: central coun-
ties. southwest, ) miles per hour;
southern counties, southwest, 3 miles
per hour. The total weekly amounts
of precipitation were as follows: AT
Flagstaff. 90 inch, being a deficiency
of O.1O inch; Phoenix, O.21 inch, being
an excess of or inch; Yuma, 600 inch.
or normal. At Phoenix, the weekly
mean humidity was A. per cent. or 20
per cent greater than the mean humid
ity of the preceding week. The aver
age of the daylight humidity was %
per cent; the average of the night hu-
nudity was 62 per cent. The greatest
humidity was ~ per cent on May 18TH;
the least humidity was IL per cent, on
May 31st.
Abnormally low temperatures con-
tinued from Tuesday until Friday. the
average daily deficiency in temporal
ture during that period amounting to
G degrees. From Saturday to Monday.
the temperature increased slowly. with
an average daily excess in temperature
of degrees. Heavy TO killing frost
formed in the northern counties, and
light frost and heavy dew in the GEN.
trail counties on Thursday. Light dew
formed in the central counties on Fri
day. The weekly mean temperature
for the Territory was Sc degrees. which
is a deficiency of degrees. For the
temperature was As degrees. being a
deficiency of degrees: for the CEN
trail section, "A degrees, being a def
cheney of degrees; for the southern
section. "A degrees, being a deficiency
of degrees. The extreme ranges in
temperature were as follows: At Flag
staff. the maximum temperature was
"a degrees. on the LIST; the
minimum temperature was 80 de-
grees on May 30th. At Phoenix.
the maximum temperature was 80 de-
grees. on the list: the minimum tenn
perature was 81 degrees. on May 29th.
At Yuma, the maximum temperature
was 10l degrees. on the Let: the, mini
mum temperature was 81 degrees. on
May 29th. The night temperatures
ranged from 80 degrees to 46 degrees
over the northern counties; from a
degrees to 6S degrees over the central
counties. and from As to ~ degrees
over the southern counties.
The precipitat ton during the early
portion of the week produced a slow
run-off. and added but small volumes
of water i'm the San Pedro. the San
Francisco. the Salt the ella. and the
Verde riverbeds. The Colorado from
Fort Mohave to Yuma. is again at
floodstages and rising slowly. The Of
fetal in Charge. at Yuma. reports a
gage reading of 2s.3 II. Grave fears
are entertained for the safety of the
newly reconstructed levees below Yuma.
There remains. as yet. moderate
depth of snow over the San Francisco.
the Mogollon, and the Mt. Graham
ranges. On the northern slopes and in
the deep ravines of these mountains.
the depths are variously estimated at
from feet to feet of well-packed
snow. Irrigation was pursued, with
out interruption. during the entire
week. The main canals, crosscuts.
laterals, dams and bitches contained
large flows of water. The supply of
water is ample for all purposes.