CATHAY BULL RUN RANCH, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(041588) CATHAY BULL RUN RANCH
From Year=1948 To Year=1977
Cooling Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
55 2 9 23 74 246 489 716 681 506 240 37 4 3027
57 1 5 12 49 196 430 654 619 446 190 22 1 2625
60 1 1 4 24 130 344 561 526 358 125 9 0 2082
65 0 0 0 4 53 216 407 374 221 51 1 0 1326
70 0 0 0 0 16 114 260 230 107 14 0 0 740
Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. 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