RAMONA FIRE DEPT, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(047228) RAMONA FIRE DEPT
From Year=1974 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 40 42 61 119 236 382 555 588 496 290 108 36 2952
57 24 25 37 81 183 323 493 526 436 232 73 21 2453
60 9 10 15 40 113 236 400 433 347 154 35 8 1800
65 2 2 3 8 34 109 246 279 207 59 8 1 956
70 0 0 1 1 6 36 112 140 98 15 1 0 411
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