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Period of Record General Climate Summary - Heating Degree Days

Station:(218243) THIEF RIVER FALLS
From Year=1900 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 1982 1634 1354 751 387 125 43 68 299 662 1164 1705 10175
60 1827 1493 1199 603 257 53 11 20 185 511 1014 1550 8723
57 1734 1408 1106 516 190 27 4 8 130 424 924 1457 7928
55 1672 1351 1044 460 152 17 2 4 99 369 864 1395 7429
50 1517 1210 890 327 76 4 0 0 44 246 715 1240 6268
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