ALTURAS RANGER STATION, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(040161) ALTURAS RANGER STATION
From Year=1905 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 1114 899 825 616 416 200 52 76 238 539 826 1062 6864
60 959 758 670 467 272 99 13 21 122 386 676 907 5350
57 866 673 577 378 197 58 5 9 74 299 586 814 4536
55 804 616 515 321 153 39 3 4 51 244 526 752 4028
50 649 475 363 192 70 11 0 1 17 129 377 597 2880
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