MANSFIELD, WASHINGTON

Period of Record General Climate Summary - Heating Degree Days

Station:(454971) MANSFIELD
From Year=1922 To Year=1986
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 1327 1010 819 544 441 148 19 98 305 609 1071 1341 7731
60 1172 868 664 394 292 61 2 32 163 454 921 1186 6209
57 1079 783 571 304 210 29 0 11 102 361 831 1093 5375
55 1017 726 509 246 158 15 0 4 68 301 771 1031 4846
50 862 585 354 125 56 2 0 0 10 156 621 876 3645
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 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