WATSONVILLE WATERWORKS, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(049473) WATSONVILLE WATERWORKS
From Year=1948 To Year=2005
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 490 374 366 291 227 149 118 102 104 180 316 474 3192
60 336 236 217 155 94 37 17 13 18 66 177 320 1686
57 245 158 137 86 38 8 1 1 3 25 107 229 1039
55 189 113 92 50 16 2 0 0 0 11 69 173 716
50 76 34 21 7 1 0 0 0 0 1 14 64 218
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