WEED FIRE DEPT, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(049499) WEED FIRE DEPT
From Year=1957 To Year=1989
Cooling Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
55 0 0 1 11 65 189 349 327 148 34 0 0 1124
57 0 0 0 6 45 147 291 270 110 20 0 0 890
60 0 0 0 2 24 95 210 191 63 8 0 0 592
65 0 0 0 0 5 36 98 86 17 1 0 0 244
70 0 0 0 0 1 9 31 26 3 0 0 0 70
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 Apr 5, 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