VISTA 1 NE, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(049378) VISTA 1 NE
From Year=1957 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	486	466	534	592	714	794	952	1000	927	821	611	489	8388
40 S	486	953	1487	2079	2794	3587	4540	5539	6466	7287	7898	8388	8388
45 M	332	325	379	442	559	644	797	845	777	666	461	335	6564
45 S	332	658	1037	1479	2039	2682	3480	4324	5101	5767	6228	6564	6564
50 M	188	189	227	293	404	494	642	690	627	511	312	190	4766
50 S	188	377	603	896	1301	1794	2437	3126	3753	4264	4576	4766	4766
55 M	79	79	96	156	250	344	487	535	477	356	171	76	3104
55 S	79	157	253	409	660	1003	1491	2025	2502	2858	3029	3104	3104
60 M	24	24	25	57	112	196	332	380	327	205	65	19	1765
60 S	24	48	73	130	242	437	770	1150	1476	1681	1746	1765	1765

Corn Growing Degree Days
50 M	275	261	289	332	412	489	633	672	604	505	354	278	5105
50 S	275	536	825	1158	1570	2059	2692	3364	3968	4473	4827	5105	5105

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