Arizona republican., 1906-07-27
THE WEATHER BULLETIN
Directors Report for Week Ending
 July g, 1906.

The temperature was generally be- low the normal values on Tuesday and Wednesday. There was a gradual in- crease in temperature during Thursday and Friday, terminating in the highest readings of the season to date. During the remainder of the week the temper ature approached close to the normal. The night temperatures ranged from AS degrees to so over the northern counties, from 64 degrees to S6 degrees over the central counties, and from 66 degrees to SS degrees over the southern counties. The extreme temperatures recorded during the week were as fol-
 lows: At Flagstaff the maximum temperature was S2 degrees, on the goth; the minimum temperature was 4S degrees on the 17th; at Phoenix, the maximum temperature was 1OS de- grees, on the goth; the minimum tenn perature was 76 degrees, on the 17th; at Yuma, the maximum temperature was 106 degrees. on the 18th; the min- imum temperature was "A degrees, on the 16th. Light frost formed over a few localities of the northern counties, on Tuesday morning. The average weekly temperature for the Territory was 2 degrees above the normal. The average daily excess for the northern division was 1 degree for the central division the average daily excess was 3 degrees, and for the southern division the average daily excess was degrees.
 There was much cloudiness over the northern central and southeastern counties while over the southwestern counties the skies were almost cloud less Light showers occurred. over the northern counties on the 16th and 18th; moderate precipitation over the central nd urday and Sunday. Thundershowers were frequent over Yavapai, Maricopa, Gila, Pinal, Graham and the southern portions of Navajo and Apache coun- ties on the 20th and 21st. There was a marked absence of high winds throughout the week. The prevailing nd-directiOns and average hourly wind velocities were as follows: over the northern section the prevailing wind direction was northwest, and the average hourly wind velocity, miles per hour; over the central section, the prevailing wind-direction was south east and the average hourly wind-ve- locity, miles per hour; over the southern section the prevailing wind direction was southwest, and the aver age hourly wind-velocity, 4 miles per hour. The relative humidity averaged less than the preceding week. At Phoenix, the average daily humidity was 30 per cent; the average during daylight was 16 per cent; the average during the night was A per cent; the greatest humidity was 7S per cent, and the least humidity was 14 per cent. The following amounts of rainfall were re- ported during the week: At Flagstaff, 0.O6 inch, departure, -0.40 inch; at Phoenix, trace, departure, -0.27 inch; at Yuma, 600 inch. departure -0.O7 inch. Several sandstOrms, of moderate character, occurred over the central and southern counties on the 18th and goth. A destructive hailstorm occurred at Young on the 17th.
 Owing to the absence of heavy rains the volume of water in the various stream beds was slightly less. In some localities, particularly over the south ern counties, water has become scarce Many of the water holes over the ranges are dry. Tn other localities where the heavy rains, of the preced- ing week, filled the arroyos, there is a sufficient supply of water that will last several weeks to come. The upper Salt. upper Gila, upper Agua Fria Verde, san Pedro Santa Cruz, Sar Francisco, and Big Williams rivers contain average supplies of water. The Little Colorado and Colorado river.