PITKIN, COLORADO

Period of Record General Climate Summary - Heating Degree Days

Station:(056513) PITKIN
From Year=1909 To Year=1986
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 1645 1434 1329 1025 735 480 310 360 537 856 1218 1566 11495
60 1490 1292 1174 875 580 330 156 206 387 701 1068 1411 9670
57 1397 1207 1081 785 487 241 73 120 297 608 978 1318 8593
55 1335 1151 1019 725 425 184 35 73 237 546 918 1256 7905
50 1180 1009 864 575 271 73 2 11 104 391 768 1101 6350
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