Arizona republican., 1907-06-13
WEEKLY WEATHER BULLETIN.
For the Week Ending June 10, 1907.
 GENERAL SUMMARY.

Tuesday and Wednesday had normal
 temperatures. From Thursday to Sun
 day, inclusive, unseasonably low tenn
 perature prevailed, the average daily
 deficiency for that period being g de-
 grees. On Monday, the temperature
 increased slowly, but had not reached
 the normal values. Frost occurred
 frequently over the northern counties.
 Light frost and heavy dew formed
 over the central and elevated sections
 of the southern counties on Sunday
 morning. The night temperatures
 ranged from 2 degrees 10 iS degrees
 over the northern section; from 40 de-
 grees to 66 degrees over the central
 section, and from 45 degrees to 70 de-
 grees over the southern section. The extreme ranges in temperature were
 as follows: At Flagstaff, the max
 imum temperature was "A degrees, on the Sd; the minimum temperature was g degrees, on the 9th. At Phoenix. the maximum temperature was 9S de- grees, on the 4th. the minimum tenn perature was 54 degrees, on the 9th. At Yuma, the maximum temperature was 96 degrees, on the 4th; the min imum temperature was 56 degrees, on the 9th. The weekly mean temper ature for the Territory was 6s degrees. being a deficiency of 6 degrees. For the northern counties, the weekly mean temperature was 54 degrees, being a deficiency of , degrees; for the central counties, 1S degrees, being a deficiency of degrees; for the southern counties, 1S degrees. being a deficiency of de- grees.
 The early portion of the week was clear. The weather was partly cloudy to cloudy from Thursday to Saturday. inclusive, with rain, hail, and thun- derstorms. changing into sleet and snow, in the northern counties on Sat- urday. and rain, hail and thunder storms in the central and southern counties on Friday and Saturday. No precipitation occurred over the ex- treme southwest section. Sunday and Monday were cloudless. There was a slight deficiency in sunshine. The humidity remained abnormally high. There were four clear days, partly cloudy days and 1 cloudy day. Fol- lowing are the total weekly amounts of precipitation: At Flagstaff, 0.20 inch. being an excess of 0.06 inch; Phoenix. trace. being an excess of trace; Yuma. 0.00 being a deficiency of trace. At Phoenix, the weekly mean humidity was 34 per cent, or per cent greater than the normal for June, and 13 per cent less than the mean humid ity for the preceding week. The aver age of the daylight humidity was IS per cent; the average of the night humidity was 51 per cent. The great est humidity was 76 per cent. on the 9th; the least humidity was 13 per cent, on the 4th. Local sandstorms and high winds occurred on Friday. The prevailing nd-directions and the average wind-velocities were as follows: over the northern section. the prevailing wind-direction was southwest. and the average wind velocity, : miles per hour; central section, southwest, miles per hour; southern section, southwest, 6 miles per hour.
 The volume of streamflow within the Colorado river is somewhat less than that of the preceding week. The river was receding rapidly at Fort Mohave and falling slowly at Yuma on Satur- day last There are still good depths of flowing water in the Little Colo rado, the upper Gila, the upper Salt, Verde and San Francisco drainage areas. Over the lower Salt, the lower Gila, the Hassayampa and San Pedro