ORLAND, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(046506) ORLAND
From Year=1948 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 2 14 57 161 372 575 731 672 536 293 45 3 3460
57 1 7 36 120 315 515 669 610 476 237 27 1 3014
60 0 1 15 72 234 426 576 517 387 163 11 0 2403
65 0 0 2 23 125 284 421 363 244 70 2 0 1534
70 0 0 0 4 54 161 271 215 124 23 0 0 852
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