SUMMIT 1 W, SOUTH DAKOTA

Period of Record General Climate Summary - Heating Degree Days

Station:(398116) SUMMIT 1 W
From Year=1956 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 1717 1411 1162 669 322 94 25 44 234 589 1086 1543 8896
60 1562 1270 1007 524 200 35 5 12 134 443 936 1388 7516
57 1469 1185 915 440 141 16 1 4 88 361 846 1295 6763
55 1407 1129 853 387 108 9 0 2 64 310 787 1233 6290
50 1252 987 702 265 49 2 0 0 25 197 639 1078 5195
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