ASH FORK 3, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(020487) ASH FORK 2
From Year=1940 To Year=1999
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 921 844 762 562 272 104 0 0 27 282 -99 -99 -99
60 766 699 607 412 127 26 0 0 1 135 -99 -99 -99
57 673 612 514 322 66 8 0 0 0 66 -99 -99 -99
55 611 554 452 262 36 2 0 0 0 35 -99 -99 -99
50 456 409 297 117 3 0 0 0 0 0 -99 -99 -99
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