WILLOWS 6 W, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(049699) WILLOWS 6 W
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
65 618 431 363 208 74 12 0 1 8 90 359 597 2761
60 463 291 219 103 25 2 0 0 1 29 219 443 1794
57 371 210 145 59 10 1 0 0 0 12 146 351 1303
55 311 161 102 38 4 0 0 0 0 5 104 291 1017
50 170 62 32 9 0 0 0 0 0 0 33 153 461
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