SUPAI, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(028343) SUPAI
From Year=1899 To Year=1987
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 741 505 361 160 44 2 0 0 7 130 447 733 3130
60 586 364 222 76 15 0 0 0 1 58 302 578 2202
57 494 283 152 43 7 0 0 0 0 32 222 485 1717
55 432 231 113 28 4 0 0 0 0 20 174 424 1425
50 283 120 45 8 1 0 0 0 0 5 80 275 816
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