COTTONWOOD, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(022193) COTTONWOOD
From Year=1911 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
65 668 481 376 179 49 2 0 0 2 95 380 645 2877
60 513 340 233 84 17 0 0 0 0 40 238 490 1956
57 420 259 161 49 8 0 0 0 0 22 162 397 1478
55 359 208 121 33 5 0 0 0 0 14 120 336 1197
50 214 103 51 10 1 0 0 0 0 5 48 192 625
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