CHICO UNIV FARM, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(041715) CHICO EXPERIMENT STN
From Year=1906 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 2 9 47 144 339 541 725 663 506 251 36 3 3265
57 0 3 27 104 282 481 663 601 446 197 20 1 2825
60 0 1 10 57 202 392 570 508 357 125 7 0 2228
65 0 0 1 13 98 250 415 354 216 44 0 0 1391
70 0 0 0 1 35 132 263 205 102 10 0 0 748
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