COTTONWOOD, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(022193) COTTONWOOD
From Year=1949 To Year=1977
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 679 495 406 193 55 3 0 0 2 99 395 662 2990
60 524 355 261 93 18 0 0 0 0 43 250 507 2052
57 432 274 184 54 8 0 0 0 0 24 173 415 1564
55 370 222 141 38 4 0 0 0 0 16 130 353 1276
50 224 114 63 13 1 0 0 0 0 6 54 208 683
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 Jul 28, 2006
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