LODI, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(045032) LODI
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
65 598 409 340 196 78 15 1 2 14 112 372 597 2735
60 443 269 194 86 20 2 0 0 1 34 228 442 1718
57 352 188 120 43 6 0 0 0 0 13 151 350 1223
55 292 140 80 24 2 0 0 0 0 6 107 290 942
50 158 50 18 3 0 0 0 0 0 0 35 155 420
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