CLARK, SOUTH DAKOTA

Period of Record General Climate Summary - Heating Degree Days

Station:(391739) CLARK
From Year=1893 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 1662 1383 1119 624 298 84 16 31 204 546 1028 1479 8474
60 1507 1242 964 480 184 31 3 8 113 401 878 1324 7135
57 1414 1157 871 399 129 15 1 2 73 321 788 1231 6403
55 1352 1101 810 348 99 9 0 1 52 272 728 1169 5942
50 1197 960 659 232 46 2 0 0 20 168 581 1014 4878
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