Arizona republican., 1907-05-29
WEEKLY WEATHER BULLETIN.
For the Week Ending May 27, 1907.
 GENERAL. SUMMARY.

High temperature continued until Z Wednesday. Decidedly lower temper atures prevailed during the remainder , of the week. The night temperatures ranged from 2S degrees to 46 degrees ! over the northern section; from 40 de- 1 grees to 66 degrees over the central section. and from i2 degrees to 6S de- grees over the southern section. The extreme ranges in temperature were as follows: At Flagstaff. the maxi mum temperature was "A degrees. on | the 21st: the minimum temperature
 was 31 degrees. on the 18th. At Phoe-
 nix. the maximum temperature was 99 degrees. on the Fist: the minimum temperature was 52 degrees, on the l 24th. At Yuma, the maximum tenn perature was 101 degrees. on the 20th; ! the minimum temperature was 54 de- 1 grees on the 24th. The weekly mean ! temperature for the territory was 6S | degrees. or normal. For the northern counties. the weekly mean tempera- ture was 53 degrees. being an excess of degrees. for the central counties. l a degrees. or normal: for the south ern counties, 75 degrees. being a de- fciency of 1 degree. Heavy to killing frost formed over the northern coun-
 ties almost nightly. and light frost over the central counties on Friday morn ing
 There was more than the usual amount of cloudiness. and the sun
 shine was somewhat deficient. Light and scatterd thundershowers oc-
 cured over a few localities in
 the northern and central counties during Friday. and on Sunday night. There were clear days and 2
 partly cloudy days. The week was windy turnout. particularly between
 the hours of II a. m. and p. m.. and at intervals during the night A max imum wind- velocity. of 3S miles per hour. from the southwest. occurred at Flagstaff. on the 23d. The prevailing
 wind directions and average wind
 velOcities were as follows: over the
 northern section, west, miles per
 hour; central section. southwest, s
 miles per hour. and for the southern section. miles per hour. The total
 weekly amounts of precipitation were
 as follows: At Flagstaff trace. a de-
 ficiency of 0.5O inch: Phoenix. trace. or
 normal: Yuma. O00 or normal. At uptlllN. lilt NtthlN lltsti
 was 20 per cent or per cent less than
 the mean humidity for the preceding
 week. The average of the daylight hu-
 midity was per cent: the average of
 the night humidity was 31 per cent.
 The greatest humidity was 43 per
 oenton the 27th: the least humidity
 was 8 per cent. on the 23d.
 The volume of water in the larger
 rivcrbeds is diminishing slowly. No
 run-off whatever occurred from the
 light precipitation over the northern
 and central counties on the 24th and
 27th. There are good discharges in
 the Colorado. the Little Colorado. the
 upper Gila. the Verde and upper Salt
 rivers. The lower Gila and lower Salt
 riverbeds contain fairly-large volumes
 Of water. There are still moderate
 depths of snow over the higher eleva-
 tions of the Bradshaw. the San Fran-
 cisco, MOgollon and the Mt Graham
 ranges. There is much less snow in
 the mountains than during the same
 period of last year. At the intakes of
 the canals upon larger streams. the depth of water varies from it. to it.
 There were maximum flows of water in many of the canals during the en-
 tire week. There is, as yet, a large and plentiful supply of water for ir-