WELLTON, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(029211) WELLTON
From Year=1922 To Year=1980
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 430 260 147 39 5 0 0 0 0 15 193 409 1496
60 278 138 54 8 0 0 0 0 0 3 88 258 827
57 194 81 23 2 0 0 0 0 0 1 47 174 522
55 145 52 11 1 0 0 0 0 0 0 28 125 362
50 55 13 1 0 0 0 0 0 0 0 6 39 114
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