MT RUSHMORE NATL MEM, SOUTH DAKOTA

Period of Record General Climate Summary - Heating Degree Days

Station:(395870) MT RUSHMORE NATL MEM
From Year=1962 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 1207 1034 959 681 415 153 33 47 224 546 891 1156 7345
60 1052 893 804 536 282 75 9 15 134 404 741 1001 5946
57 959 808 712 452 213 44 4 7 94 326 652 908 5179
55 897 752 651 398 172 30 2 4 72 278 594 847 4696
50 743 612 505 273 91 9 0 1 34 176 454 693 3590
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