SACRAMENTO FAA ARPT, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(047630) SACRAMENTO FAA ARPT
From Year=1941 To Year=2006
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	602	411	348	203	75	12	1	1	7	85	357	589	2690
60	447	271	201	92	21	1	0	0	1	23	215	435	1707
57	355	190	126	47	7	0	0	0	0	8	140	343	1216
55	295	141	85	27	3	0	0	0	0	4	98	282	934
50	157	48	20	4	0	0	0	0	0	0	30	147	405

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