MACKAY LOST RIVER RS, IDAHO

Period of Record General Climate Summary - Heating Degree Days

Station:(105462) MACKAY RANGER STN
From Year=1908 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 1475 1220 1053 700 455 221 44 69 277 625 1023 1400 8562
60 1320 1078 898 550 307 114 11 20 152 470 873 1245 7040
57 1227 994 805 461 227 70 4 9 97 380 783 1152 6208
55 1165 937 743 403 179 48 2 5 69 322 723 1090 5686
50 1010 796 588 264 86 15 0 1 26 193 573 935 4488
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