RUSTIC 9 WSW, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(057296) RUSTIC 9 WSW
From Year=1993 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 1212 1115 1016 828 577 275 82 119 346 684 966 1219 8438
60 1057 973 861 678 424 151 23 35 210 529 816 1064 6821
57 964 889 768 588 335 97 9 14 144 438 726 971 5943
55 902 832 706 528 280 68 5 8 108 379 666 909 5392
50 747 691 551 381 164 24 1 2 47 245 517 754 4125
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