BUTTONWILLOW, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(041244) BUTTONWILLOW
From Year=1948 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	191	315	496	647	906	1088	1291	1238	1039	782	398	187	8577
40 S	191	506	1002	1649	2555	3643	4934	6171	7211	7992	8391	8577	8577
45 M	86	184	342	497	751	938	1136	1083	889	627	255	83	6872
45 S	86	270	612	1110	1861	2799	3934	5017	5907	6533	6788	6872	6872
50 M	30	83	200	349	596	788	981	928	739	472	136	27	5330
50 S	30	113	313	662	1259	2047	3027	3955	4695	5167	5303	5330	5330
55 M	8	24	91	213	442	638	826	773	589	322	54	6	3985
55 S	8	32	122	336	778	1416	2241	3014	3604	3926	3979	3985	3985
60 M	1	4	28	107	295	488	671	618	439	187	14	1	2852
60 S	1	5	33	140	435	923	1593	2211	2651	2838	2852	2852	2852

Corn Growing Degree Days
50 M	110	188	296	397	564	679	795	765	646	496	262	122	5321
50 S	110	299	595	992	1556	2235	3031	3795	4441	4937	5199	5321	5321

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