FT COLLINS, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(053005) FORT COLLINS
From Year=1893 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 1160 971 848 546 298 79 10 16 167 490 838 1115 6537
60 1005 830 693 398 170 27 2 2 80 339 688 960 5194
57 912 745 601 314 112 12 1 1 48 256 598 867 4467
55 850 689 540 262 83 7 0 0 34 205 538 805 4013
50 695 548 394 153 33 1 0 0 13 106 392 650 2987
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