JULIAN CDF, CALIFORNIA

Period of Record General Climate Summary - Cooling Degree Days

Station:(044412) JULIAN
From Year=1893 To Year=2012
Cooling Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
55	5	6	23	56	151	340	553	563	410	181	42	3	2332
57	2	3	12	39	113	286	491	501	352	140	26	1	1967
60	0	1	4	22	67	210	399	408	269	88	10	0	1480
65	0	0	0	6	22	103	247	258	144	30	1	0	812
70	0	0	0	1	4	35	115	123	50	6	0	0	332

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 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