JOSHUA TREE, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(044405) JOSHUA TREE
From Year=1959 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
65 463 436 300 168 46 4 0 0 0 73 283 559 2332
60 310 296 171 85 17 0 0 0 0 28 169 404 1478
57 222 217 112 52 7 0 0 0 0 13 113 317 1053
55 170 170 79 34 4 0 0 0 0 7 83 261 807
50 74 78 26 9 1 0 0 0 0 1 30 141 360
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