YELLOWSTONE PARK, WYOMING

Period of Record General Climate Summary - Cooling Degree Days

Station:(489905) YELLOWSTONE PARK
From Year=1894 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 0 1 17 88 271 231 62 3 0 0 674
57 0 0 0 0 9 61 216 178 40 1 0 0 505
60 0 0 0 0 2 31 140 108 18 0 0 0 298
65 0 0 0 0 0 7 46 31 3 0 0 0 87
70 0 0 0 0 0 1 8 4 0 0 0 0 13
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