N WILLAMETTE EXP STN, OREGON

Period of Record General Climate Summary - Cooling Degree Days

Station:(356151) N WILLAMETTE EXP STN
From Year=1963 To Year=2007
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 2 22 97 211 369 369 224 44 3 0 1341
57 0 0 1 13 69 161 308 307 173 26 1 0 1058
60 0 0 0 5 39 101 220 219 108 10 0 0 702
65 0 0 0 0 12 38 100 99 38 1 0 0 288
70 0 0 0 0 2 10 32 31 8 0 0 0 84
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