RIDDLE 2 NNE, OREGON

Period of Record General Climate Summary - Cooling Degree Days

Station:(357169) RIDDLE 2 NNE
From Year=1899 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 1 2 9 32 111 243 419 408 247 74 7 1 1555
57 0 1 4 18 77 190 358 346 194 47 3 0 1238
60 0 0 1 7 42 120 266 255 123 20 1 0 834
65 0 0 0 1 11 42 130 121 42 3 0 0 350
70 0 0 0 0 2 10 43 38 8 0 0 0 102
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