MANZANITA LAKE, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(045311) MANZANITA LAKE
From Year=1949 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	1067	936	960	768	541	299	123	152	277	551	842	1023	7538
60	912	795	805	618	391	178	45	63	155	400	692	868	5922
57	819	710	712	528	308	122	22	33	101	314	602	775	5046
55	757	654	650	469	257	92	14	20	74	262	542	713	4501
50	602	513	495	326	149	39	3	5	30	150	394	558	3263

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