FORT COLLINS, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(053005) FORT COLLINS
From Year=1900 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 1164 967 852 550 300 81 10 17 170 489 841 1111 6553
60 1009 826 697 402 172 28 2 2 82 338 691 956 5207
57 916 741 605 318 114 13 1 1 50 255 601 863 4477
55 854 685 543 266 84 7 0 0 35 204 541 801 4022
50 700 545 396 156 33 2 0 0 14 106 395 647 2993
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 Jul 28, 2006
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