FOUNTAIN HILLS, ARIZONA

Period of Record General Climate Summary - Cooling Degree Days

Station:(023190) FOUNTAIN HILLS
From Year=1979 To Year=2012
Cooling Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
55 55 99 238 435 720 962 1128 1112 919 608 224 52 6550
57 31 68 188 378 658 902 1066 1050 859 547 177 30 5953
60 11 34 124 296 565 812 973 957 769 456 116 11 5123
65 1 6 49 172 413 662 818 802 619 309 44 1 3895
70 0 0 12 79 269 513 663 647 470 179 10 0 2841
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