MITCHELL CAVERNS, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(045721) MITCHELL CAVERNS
From Year=1958 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	221	246	375	560	857	1122	1319	1262	1040	781	405	235	8424
40 S	221	467	842	1402	2259	3381	4700	5962	7002	7783	8188	8424	8424
45 M	114	138	239	416	702	972	1164	1107	890	628	270	124	6764
45 S	114	252	491	907	1609	2581	3744	4852	5742	6369	6639	6764	6764
50 M	46	64	133	285	549	822	1009	952	740	477	157	50	5281
50 S	46	109	242	527	1076	1897	2906	3858	4598	5075	5232	5281	5281
55 M	11	22	60	173	401	672	854	797	590	335	75	12	4002
55 S	11	33	94	267	668	1340	2193	2991	3581	3916	3990	4002	4002
60 M	1	4	20	88	266	524	699	642	442	208	25	2	2921
60 S	1	6	25	113	379	903	1601	2244	2686	2894	2920	2921	2921

Corn Growing Degree Days
50 M	93	113	193	330	558	758	893	862	710	491	203	101	5305
50 S	93	206	399	729	1287	2045	2938	3799	4510	5001	5204	5305	5305

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