FREDERICK, SOUTH DAKOTA

Period of Record General Climate Summary - Heating Degree Days

Station:(393129) FREDERICK
From Year=1906 To Year=1958
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 1827 1482 1257 692 372 105 20 92 278 623 1089 1490 9329
60 1672 1341 1102 548 242 44 3 32 173 469 939 1335 7901
57 1579 1256 1009 466 178 22 0 10 124 379 849 1242 7116
55 1517 1200 947 414 142 13 0 3 96 322 789 1180 6624
50 1362 1058 794 292 75 0 0 0 50 200 639 1025 5496
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