MOUNT SHASTA, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(045983) MOUNT SHASTA
From Year=1948 To Year=2010
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 78 206 394 348 194 39 1 0 1272
57 0 0 0 5 54 161 334 289 149 24 0 0 1015
60 0 0 0 1 28 104 246 205 91 10 0 0 684
65 0 0 0 0 6 38 119 88 28 1 0 0 280
70 0 0 0 0 1 9 36 22 4 0 0 0 72
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