WOONSOCKET, SOUTH DAKOTA

Period of Record General Climate Summary - Heating Degree Days

Station:(399457) WOONSOCKET
From Year=1939 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 1352 -99 -99 563 81 22 2 4 96 -99 -99 1128 -99
60 1197 -99 -99 415 32 5 0 0 51 -99 -99 973 -99
57 1104 -99 -99 331 18 2 0 0 33 -99 -99 880 -99
55 1042 -99 -99 281 12 1 0 0 23 -99 -99 818 -99
50 887 -99 -99 170 2 0 0 0 7 -99 -99 663 -99
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