MANZANITA LAKE, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(045311) MANZANITA LAKE
From Year=1949 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	8	11	24	91	261	464	691	647	486	251	53	13	3002
40 S	8	20	44	135	396	860	1551	2198	2684	2935	2989	3002	3002
45 M	0	1	5	34	151	324	537	492	344	141	14	2	2046
45 S	0	2	6	41	192	516	1053	1545	1889	2030	2044	2046	2046
50 M	0	0	0	8	73	200	384	342	213	64	2	0	1285
50 S	0	0	0	8	81	281	665	1007	1219	1283	1285	1285	1285
55 M	0	0	0	1	27	102	239	202	105	21	0	0	697
55 S	0	0	0	1	28	130	369	571	676	697	697	697	697
60 M	0	0	0	0	6	39	115	89	36	4	0	0	289
60 S	0	0	0	0	6	45	160	249	285	289	289	289	289

Corn Growing Degree Days
50 M	13	15	27	77	183	302	455	430	329	182	43	16	2073
50 S	13	29	56	132	315	617	1072	1502	1831	2013	2056	2073	2073

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 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