ASH MOUNTAIN, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(040343) ASH MOUNTAIN
From Year=1948 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	229	296	403	545	810	1059	1328	1296	1083	823	448	250	8569
40 S	229	525	928	1473	2283	3342	4670	5966	7049	7871	8319	8569	8569
45 M	112	171	259	398	655	909	1173	1141	933	668	305	129	6853
45 S	112	283	543	941	1596	2505	3678	4819	5752	6420	6724	6853	6853
50 M	40	77	139	265	502	759	1018	986	783	514	180	50	5313
50 S	40	117	256	521	1022	1781	2799	3786	4568	5082	5263	5313	5313
55 M	9	24	56	153	357	609	863	831	633	366	87	12	4002
55 S	9	34	90	243	600	1209	2072	2904	3536	3902	3990	4002	4002
60 M	1	5	14	71	228	462	708	676	484	231	33	2	2917
60 S	1	6	20	92	320	782	1490	2166	2650	2882	2915	2917	2917

Corn Growing Degree Days
50 M	129	167	227	322	505	672	832	816	684	511	260	141	5267
50 S	129	296	523	845	1350	2022	2854	3670	4354	4865	5126	5267	5267

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