FT VALLEY, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(023160) FORT VALLEY
From Year=1909 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 1214 1032 983 747 540 268 92 129 305 627 908 1163 8007
60 1059 891 828 597 385 143 19 33 163 472 758 1008 6355
57 966 806 735 507 295 85 5 10 96 379 668 915 5467
55 904 750 673 447 238 56 2 4 62 318 608 853 4914
50 749 608 518 300 116 15 0 0 17 179 458 698 3657
Heating Degree Day units are computed as the difference between the base temperature and the daily average temperature. (Base Temp. - Daily Ave. Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is below the base temperature. Negative numbers are discarded. Example: If the days high temperature was 65 and the low temperature was 31, the base 50 heating degree day units is 50 - ((65 + 31) / 2) = 2. 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