Arizona republican., 1907-07-03
WEEKLY WEATHER BULLETIN.
For the Week Ending July i, 1907.


 The week turnout was almost cloud less over the entire Territory. There were a few clouds visible on Thurs day and Sunday. The average sum- shine was 99 per cent of the possible amount. No rainfall occurred. The departure in precipitation was as fol- lows: Flagstaff,-0.14 inch, Phoenix, -O.O7 inch; Yuma,-trace. The week gave clear days. There was in | creased wind-force. particularly in the afternoon and evening, and sand storms were numerous in the northern | and central counties on the 26th and 2Sth. A maximum wind-veiocity of 1 26 miles per hour, from the north- | west, was recorded at Flagstaff. on | the 26th. The prevailing wind-direc- | tions and the average wind-veloci- l ties were as follows: For the north | ern counties the prevailing wind-di- | rection was southwest, and the aver age wind-velocity, miles per hour; | central counties, west, 2 miles per | hour; southern counties, west, [ miles per hour. At Phoenix, the weekly mean humidity was IS per cent, or 4 per cent below the normal, and per | cent less than the mean humidity of ! the preceding week. The average of
 the daylight humidity was 6 per cent; | the average of the night humidity
 was 29 per cent The greatest hu-
 midity was 36 per cent, on the 29th; the least was per cent, on the 27th. The temperature continued abnor-
 mally low to and including Thursday. after which high summer tempera- | 1AI hn rai0 ! ever, were unseasonably cool. The
 last 3 days of the week showed an average daily excess in temperature | of degrees. The average daily de- | ficiency in temperature for the week was degrees. Frost and ice formed
 in the northern counties on Tuesday ! and Wednesday mornings. The ex- | treme ranges in temperature were as | follows: At Flagstaff. the maximum | temperature was S6 degrees, on the 2Sth; the minimum temperature was | g degrees, on the 26th. At Phoenix, l the maximum temperature was III | degrees on the 30th; the minimum | temperature was 61 degrees, on the | 18th. At Yuma, the maximum tenn perature was 113 degrees on the 2Sth; ! the minimum temperature was 64 de- grees, on the 18th. over the northern
 counties, the night temperatures rang
 ed from 31 degrees to 50 degrees;
 over the central counties, from 52 de-
 grees to 76 degrees; over the south
 ern counties, from 50 degrees to 79
 degrees. For the northern section
 the weekly mean temperature was 56
 degrees, being deficiency of degrees; for the central section, S5 degrees, be- ing a deficiency of degrees; for the | southern section, S4 degrees, being a deficiency of degrees.
 Reports from many of the weather
 correspondents indicate that the SUD- ply of water is decreasing rapidly. | There are still good depths of flowing
 water in the upper Gila, the upper Salt and the Verde riverbeds. The
 San Pedro. the Agua Fria, the Little Colorado. the Hassayampa and the
 Bill Williams Fork riverbeds are all
 most dry. The Colorado river. frssn
 Fort Mohave down to Yuma, still re-
 mains bankful. having receded but very slowly since the 22d. On Satur- | day last the river gage at Yuma read
 2S.6 it. There is a small shortage of
 water in some sections of the central
 and southern counties. The water holes upon the desert ranges have be-
 come dry. At the intakes of the larger streams, the diversion of water into
 the larger canals. crosscut canals
 dams and ditches show but a slight decrease in volume and flow. The
 present visible supply of irrigation
 water is fully 10 per cent greater
 than the supply available during the corresponding period of the summer i of 1906. The San Francisco. the Mo- gollon and Mount Graham ranges are still snowcapped.