RICHLAND, WASHINGTON

Period of Record General Climate Summary - Cooling Degree Days

Station:(457015) RICHLAND
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 0 1 5 54 222 411 618 590 323 66 3 0 2294
57 0 0 2 34 173 353 556 528 267 43 1 0 1957
60 0 0 1 15 111 267 463 435 190 20 0 0 1503
65 0 0 0 3 45 145 312 283 89 3 0 0 881
70 0 0 0 0 14 63 177 151 30 0 0 0 435
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