OJAI, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(046399) OJAI
From Year=1905 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
65 425 341 311 208 124 41 2 2 14 83 235 399 2185
60 273 207 171 93 37 6 0 0 1 21 115 249 1173
57 190 136 102 46 13 1 0 0 0 6 62 167 723
55 141 95 66 25 5 0 0 0 0 2 38 120 491
50 51 26 14 3 0 0 0 0 0 0 7 39 141
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