CATHAY BULL RUN RANCH, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(041588) CATHAY BULL RUN RANCH
From Year=1948 To Year=1977
Heating Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
65 660 485 462 325 135 28 1 3 15 138 412 640 3304
60 506 344 310 195 57 6 0 0 2 56 270 485 2233
57 413 263 226 131 30 2 0 0 1 28 194 393 1681
55 352 212 175 96 18 1 0 0 0 17 149 333 1353
50 210 102 74 34 3 0 0 0 0 4 62 195 685
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