LODI, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(045032) LODI
From Year=1893 To Year=2012
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 600 420 351 206 89 17 2 3 18 124 381 598 2808
60 445 279 203 92 24 2 0 0 2 40 236 443 1765
57 353 198 127 46 7 0 0 0 0 16 158 351 1257
55 293 149 86 25 3 0 0 0 0 7 113 291 968
50 158 57 21 3 0 0 0 0 0 1 37 154 431
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 Oct 31, 2012
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