ALPINE, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(040136) ALPINE
From Year=1952 To Year=2006
Cooling Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
55 64 68 91 161 260 425 627 652 561 378 154 60 3499
57 43 46 62 120 205 366 565 590 501 319 114 38 2966
60 20 24 31 72 133 280 472 497 411 235 67 16 2258
65 3 6 7 27 52 153 317 342 268 123 21 2 1321
70 0 0 1 7 16 71 176 198 152 56 4 0 680
Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. 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