MONTEBELLO, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(045790) MONTEBELLO
From Year=1979 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	577	565	670	764	875	968	1131	1160	1073	943	703	591	10018
40 S	577	1142	1812	2576	3451	4419	5549	6709	7782	8725	9428	10018	10018
45 M	422	424	515	614	720	818	976	1005	923	788	553	436	8193
45 S	422	846	1361	1975	2695	3513	4488	5493	6416	7204	7757	8193	8193
50 M	269	285	360	464	565	668	821	850	773	633	403	284	6373
50 S	269	554	914	1377	1943	2610	3431	4281	5053	5687	6089	6373	6373
55 M	131	157	210	315	410	518	666	695	623	478	255	144	4602
55 S	131	288	498	813	1224	1741	2407	3102	3724	4203	4458	4602	4602
60 M	43	65	89	178	256	368	511	540	473	324	122	48	3017
60 S	43	108	198	375	632	999	1510	2050	2522	2846	2969	3017	3017

Corn Growing Degree Days
50 M	321	319	383	461	553	642	764	782	713	607	417	338	6299
50 S	321	640	1023	1483	2037	2678	3443	4224	4937	5544	5962	6299	6299

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