SAN LUIS 1S, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(057430) SAN LUIS 1 E
From Year=1980 To Year=2006
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 1393 1130 946 690 450 183 73 117 299 661 997 1341 8282
60 1238 989 791 540 299 75 10 23 160 506 847 1186 6665
57 1145 904 698 450 216 37 2 6 93 414 757 1093 5815
55 1083 847 636 390 167 22 0 2 60 353 697 1031 5290
50 928 706 482 249 76 4 0 0 16 210 547 876 4094
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