BOULDER, UTAH

Period of Record General Climate Summary - Heating Degree Days

Station:(420849) BOULDER
From Year=1954 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 1134 917 805 565 308 81 4 15 135 429 810 1089 6293
60 979 776 650 417 181 30 0 2 56 285 660 934 4971
57 886 691 557 332 121 15 0 0 30 209 570 841 4253
55 824 635 496 278 89 8 0 0 19 166 510 779 3804
50 669 494 347 161 36 1 0 0 6 84 363 624 2784
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