VALYERMO FIRE STN 2, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(049251) VALYERMO RANGER STN
From Year=1915 To Year=1971
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 716 573 537 320 177 46 1 5 38 218 493 665 3788
60 561 432 383 189 81 13 0 1 10 104 345 510 2629
57 468 348 293 127 45 5 0 0 3 61 260 418 2027
55 407 292 237 93 28 2 0 0 1 41 208 357 1667
50 260 168 119 37 7 0 0 0 0 13 100 215 917
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