INCHELIUM 2 NW, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(453903) INCHELIUM 2 NW
From Year=1953 To Year=1975
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 1242 970 866 573 321 136 43 51 225 592 898 1148 7065
60 1087 828 711 424 187 50 9 11 116 438 748 993 5602
57 994 744 618 335 123 22 3 3 68 346 658 900 4813
55 932 687 556 277 88 12 1 1 43 287 598 838 4321
50 777 546 401 146 28 1 0 0 11 156 449 683 3197
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