RIVERSIDE FIRE STA 3, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(047470) RIVERSIDE FIRE STN 3
From Year=1893 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	402	416	533	634	792	927	1143	1147	1008	819	561	418	8801
40 S	402	818	1351	1985	2778	3705	4848	5995	7002	7822	8383	8801	8801
45 M	255	277	378	484	637	777	988	992	858	664	412	267	6990
45 S	255	532	910	1395	2032	2809	3797	4789	5647	6311	6723	6990	6990
50 M	130	150	230	335	483	627	833	837	708	510	266	135	5244
50 S	130	280	510	846	1328	1956	2788	3625	4333	4843	5109	5244	5244
55 M	46	58	109	195	329	477	678	682	558	356	138	47	3673
55 S	46	104	213	408	737	1214	1892	2574	3132	3488	3626	3673	3673
60 M	10	15	35	86	185	328	523	527	408	211	49	9	2386
60 S	10	25	60	147	332	659	1182	1709	2117	2328	2377	2386	2386

Corn Growing Degree Days
50 M	264	261	331	387	487	576	702	704	617	510	369	278	5486
50 S	264	525	856	1243	1730	2305	3008	3712	4329	4839	5208	5486	5486

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