MANZANITA LAKE, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(045311) MANZANITA LAKE
From Year=1949 To Year=2006
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	9	11	24	91	261	464	687	647	482	253	53	14	2996
40 S	9	20	44	135	396	860	1548	2194	2676	2929	2983	2996	2996
45 M	0	1	5	34	151	324	533	492	340	142	14	2	2039
45 S	0	2	6	41	192	516	1048	1541	1881	2023	2037	2039	2039
50 M	0	0	0	8	73	200	380	342	209	65	2	0	1279
50 S	0	0	0	8	81	281	661	1003	1212	1277	1279	1279	1279
55 M	0	0	0	1	26	102	236	202	103	21	0	0	691
55 S	0	0	0	1	27	129	365	567	670	691	691	691	691
60 M	0	0	0	0	5	39	113	89	35	4	0	0	285
60 S	0	0	0	0	5	44	157	246	281	285	285	285	285

Corn Growing Degree Days
50 M	13	16	27	77	182	302	453	430	326	183	44	17	2069
50 S	13	29	56	133	315	617	1070	1499	1825	2008	2052	2069	2069

M = Monthly Data
S - Running sum of monthly data.
Growing 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.
Corn Growing Degree Day units have the limitations that the maximum daily temperatures greater than 86 F are set to 86 F and minimums less than 50 F are set to 50 F.
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