FORT ROSS, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(043191) FORT ROSS
From Year=1948 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
65 487 410 440 397 352 264 247 222 201 266 363 483 4132
60 332 270 285 248 199 120 98 80 72 124 215 328 2372
57 240 187 195 162 114 48 32 23 25 56 132 236 1450
55 181 135 137 108 65 18 9 6 8 26 85 177 957
50 61 38 32 17 4 0 0 0 0 1 15 61 231
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