WILLIAMS, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(049677) WILLIAMS
From Year=1952 To Year=1988
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 614 427 356 199 54 6 0 1 11 98 374 590 2729
60 459 287 211 95 14 1 0 0 2 32 233 435 1768
57 367 206 136 52 5 0 0 0 1 13 158 343 1280
55 307 155 94 31 2 0 0 0 0 6 114 282 993
50 167 54 25 6 0 0 0 0 0 1 38 142 432
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 Apr 5, 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