SWAN FALLS POWER HOUSE, IDAHO

Period of Record General Climate Summary - Cooling Degree Days

Station:(108928) SWAN FALLS POWER HOUSE
From Year=1935 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 0 8 73 258 467 768 704 388 107 2 0 2776
57 0 0 4 50 210 408 706 642 332 76 1 0 2430
60 0 0 1 26 146 324 613 549 253 42 0 0 1955
65 0 0 0 7 68 200 459 397 139 11 0 0 1280
70 0 0 0 1 24 104 310 253 59 1 0 0 753
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