THREE RIVERS HAMMOND RN, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(048917) THREE RIVERS HAMMOND RN
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	227	311	457	589	857	1067	1304	1266	1054	791	407	225	8552
40 S	227	538	994	1583	2440	3506	4810	6076	7130	7921	8328	8552	8552
45 M	102	178	304	440	702	917	1149	1111	904	636	262	101	6805
45 S	102	281	584	1024	1726	2643	3791	4902	5806	6442	6704	6805	6805
50 M	31	75	167	296	547	767	994	956	754	482	138	26	5232
50 S	31	106	273	569	1116	1883	2877	3833	4587	5068	5206	5232	5232
55 M	6	20	66	171	395	617	839	801	604	333	52	3	3906
55 S	6	26	92	263	659	1275	2114	2915	3519	3851	3903	3906	3906
60 M	0	2	15	79	254	468	684	646	455	198	12	0	2812
60 S	0	3	18	96	351	819	1502	2148	2603	2801	2812	2812	2812

Corn Growing Degree Days
50 M	142	195	282	371	532	651	785	770	646	495	258	145	5273
50 S	142	338	620	990	1523	2173	2959	3729	4375	4869	5128	5273	5273

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