GIANT FOREST, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(043397) GIANT FOREST
From Year=1931 To Year=1968
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	12	14	51	118	260	469	750	724	564	321	103	28	3413
40 S	12	25	76	194	454	923	1673	2397	2961	3282	3384	3413	3413
45 M	1	1	12	46	147	328	595	569	418	194	41	7	2358
45 S	1	3	14	60	208	535	1130	1699	2117	2311	2351	2358	2358
50 M	0	0	2	10	64	203	440	416	278	94	10	1	1517
50 S	0	0	2	12	76	278	718	1134	1412	1506	1516	1517	1517
55 M	0	0	0	1	19	104	288	266	154	31	1	0	866
55 S	0	0	0	1	20	124	412	679	833	864	866	866	866
60 M	0	0	0	0	3	41	150	134	62	5	0	0	395
60 S	0	0	0	0	3	44	195	329	391	395	395	395	395

Corn Growing Degree Days
50 M	12	14	48	88	162	275	461	447	347	193	63	19	2129
50 S	12	26	75	162	325	599	1061	1507	1854	2047	2110	2129	2129

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