ORICK PRAIRIE, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(046498) ORICK PRAIRIE CREEK PK
From Year=1937 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	154	190	238	288	397	484	580	595	554	444	264	161	4348
40 S	154	344	582	870	1266	1750	2330	2925	3480	3924	4187	4348	4348
45 M	56	78	104	146	243	334	425	440	404	290	130	60	2709
45 S	56	134	238	384	627	960	1386	1826	2230	2520	2649	2709	2709
50 M	11	19	26	45	106	186	270	285	255	145	40	13	1402
50 S	11	30	56	101	207	393	663	948	1203	1348	1389	1402	1402
55 M	1	2	2	8	26	62	120	133	114	44	6	1	520
55 S	1	3	5	13	39	102	221	354	468	513	519	520	520
60 M	0	0	0	1	4	10	21	24	27	7	0	0	95
60 S	0	0	0	1	5	15	37	61	88	94	95	95	95

Corn Growing Degree Days
50 M	52	82	112	143	200	247	309	323	320	245	112	48	2193
50 S	52	134	246	389	588	835	1144	1467	1787	2033	2145	2193	2193

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