STOCKTON FIRE STN # 4, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(048560) STOCKTON FIRE STN # 4
From Year=1948 To Year=2005
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	176	293	444	573	780	934	1079	1046	924	722	390	187	7549
40 S	176	470	914	1486	2267	3201	4280	5326	6250	6972	7362	7549	7549
45 M	72	161	292	423	625	784	924	891	774	567	245	76	5834
45 S	72	234	525	948	1573	2357	3281	4172	4946	5513	5758	5834	5834
50 M	20	61	153	276	471	634	769	736	624	412	122	19	4298
50 S	20	81	234	511	981	1615	2384	3120	3744	4157	4279	4298	4298
55 M	3	12	57	149	318	484	614	581	474	263	40	3	2999
55 S	3	16	72	221	540	1024	1638	2218	2693	2956	2996	2999	2999
60 M	0	1	13	60	183	336	459	426	326	134	7	0	1943
60 S	0	1	14	74	257	592	1051	1477	1803	1937	1943	1943	1943

Corn Growing Degree Days
50 M	81	161	258	349	482	579	661	646	576	452	229	94	4566
50 S	81	242	500	849	1330	1909	2570	3216	3792	4244	4472	4566	4566

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 Apr 5, 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