ALPINE, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(040136) ALPINE
From Year=1952 To Year=2012
Cooling Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
55 67 66 90 159 257 418 621 650 563 375 154 59 3479
57 45 44 61 118 202 358 559 588 503 317 115 37 2948
60 21 23 31 71 130 272 466 495 414 233 68 16 2240
65 3 5 7 26 50 146 312 340 270 123 22 2 1306
70 0 0 1 7 15 66 172 196 153 55 4 0 670
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 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