WISDOM, MONTANA

Period of Record General Climate Summary - Heating Degree Days

Station:(249067) WISDOM
From Year=1923 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 1587 1350 1252 893 636 380 199 273 519 831 1196 1525 10641
60 1432 1209 1097 743 481 238 80 133 370 676 1046 1370 8877
57 1339 1124 1004 653 390 164 38 72 284 583 956 1277 7885
55 1277 1068 942 593 330 122 22 44 230 522 896 1215 7261
50 1122 927 787 444 195 47 4 11 118 369 746 1060 5830
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