CRATER LAKE NATL PARK H, OREGON

Period of Record General Climate Summary - Heating Degree Days

Station:(351946) CRATER LAKE NATL PARK H
From Year=1931 To Year=2006
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 1217 1082 1141 968 796 564 313 313 460 736 998 1176 9764
60 1062 941 986 818 641 416 180 179 316 581 848 1021 7990
57 969 856 893 728 548 331 118 116 239 489 758 928 6973
55 907 800 831 668 487 277 85 84 193 430 698 866 6325
50 752 658 676 519 338 160 32 32 103 291 548 711 4822
Heating Degree Day units are computed as the difference between the base temperature and the daily average temperature. (Base Temp. - Daily Ave. Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is below the base temperature. Negative numbers are discarded. Example: If the days high temperature was 65 and the low temperature was 31, the base 50 heating degree day units is 50 - ((65 + 31) / 2) = 2. 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