FOLSOM DAM, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(043113) FOLSOM DAM
From Year=1955 To Year=1993
Cooling Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
55 2 19 55 146 324 521 694 668 532 333 66 3 3363
57 1 9 33 107 267 461 632 606 472 276 42 1 2907
60 0 2 12 62 189 373 539 513 383 198 18 0 2289
65 0 0 1 19 90 234 385 358 239 95 3 0 1426
70 0 0 0 3 34 124 238 211 121 36 0 0 768
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