SILVERTON, OREGON

Period of Record General Climate Summary - Cooling Degree Days

Station:(357823) SILVERTON
From Year=1962 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 0 1 3 20 87 190 356 366 227 50 3 0 1303
57 0 0 1 12 61 143 294 304 175 30 1 0 1022
60 0 0 0 4 34 87 207 215 109 12 0 0 670
65 0 0 0 0 11 32 93 96 38 2 0 0 273
70 0 0 0 0 2 9 31 32 8 0 0 0 82
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