POWAY VALLEY, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(047111) POWAY VALLEY
From Year=1893 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 41 55 72 166 257 406 554 599 487 305 116 34 3091
57 23 30 45 117 198 346 492 537 427 246 77 16 2553
60 10 9 18 57 117 257 399 444 337 163 33 4 1847
65 3 0 2 7 24 115 244 289 192 55 4 0 935
70 0 0 0 0 1 19 99 138 74 10 0 0 341
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