CAREFREE, ARIZONA

Period of Record General Climate Summary - Heating Degree Days

Station:(021282) CAREFREE
From Year=1962 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 400 290 203 79 9 0 0 0 1 25 180 419 1605
60 253 167 104 31 2 0 0 0 0 8 89 269 923
57 175 108 63 15 1 0 0 0 0 4 53 188 607
55 130 76 42 9 0 0 0 0 0 3 35 142 437
50 50 24 12 1 0 0 0 0 0 0 10 60 158
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