PHOENIX S MTN, ARIZONA

Period of Record General Climate Summary - Cooling Degree Days

Station:(026479) PHOENIX SOUTH MOUNTAIN
From Year=1975 To Year=1983
Cooling Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
55 53 92 131 370 582 962 1024 1012 842 555 234 91 5949
57 33 63 97 318 521 902 962 950 782 494 189 62 5373
60 13 33 57 246 430 812 869 857 692 404 131 30 4574
65 2 9 18 140 289 662 714 702 542 270 56 4 3407
70 0 1 2 60 166 512 559 547 396 157 14 0 2414
Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. This is done for each day of the month and summed.
Table updated on Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu