SELLS, ARIZONA

Period of Record General Climate Summary - Cooling Degree Days

Station:(027726) SELLS
From Year=1911 To Year=2009
Cooling Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
55 36 70 150 326 558 830 975 906 790 493 181 43 5357
57 21 46 109 272 497 770 913 844 730 432 139 23 4795
60 7 21 60 196 406 680 820 751 640 343 85 8 4018
65 1 4 15 92 261 530 665 596 490 206 28 1 2889
70 0 0 2 29 137 381 510 441 341 99 5 0 1945
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