CALEXICO, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(041288) CALEXICO
From Year=1904 To Year=2010
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	411	522	727	882	1106	1333	1545	1520	1293	986	639	408	11372
40 S	411	933	1660	2542	3647	4981	6525	8045	9338	10325	10964	11372	11372
45 M	261	381	572	732	951	1183	1390	1365	1143	831	489	257	9555
45 S	261	642	1214	1946	2897	4080	5470	6835	7978	8809	9298	9555	9555
50 M	128	244	417	582	796	1033	1235	1210	993	676	342	124	7780
50 S	128	372	789	1371	2167	3200	4435	5645	6638	7314	7656	7780	7780
55 M	40	122	266	432	641	883	1080	1055	843	522	203	33	6121
55 S	40	162	429	861	1502	2385	3464	4519	5363	5885	6088	6121	6121
60 M	5	41	135	285	486	733	925	900	693	370	91	4	4669
60 S	5	46	181	466	952	1686	2610	3510	4204	4574	4665	4669	4669

Corn Growing Degree Days
50 M	271	331	461	552	687	802	958	942	806	623	412	267	7111
50 S	271	601	1062	1614	2301	3102	4061	5003	5809	6432	6844	7111	7111

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