LAKE SOLANO, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(044712) LAKE SOLANO
From Year=1975 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	587	405	317	182	69	10	1	1	10	84	341	570	2578
60	432	265	177	81	22	2	0	0	2	25	200	415	1621
57	340	185	107	43	8	0	0	0	0	9	129	323	1144
55	279	137	70	25	3	0	0	0	0	4	90	262	871
50	140	47	16	4	0	0	0	0	0	0	27	126	361

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