RAMONA SPAULDING, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(047231) RAMONA SPAULDING
From Year=1949 To Year=1973
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	341	349	409	495	667	810	1055	1079	945	760	525	383	7818
40 S	341	690	1099	1594	2261	3071	4127	5205	6150	6910	7435	7818	7818
45 M	199	213	257	345	512	660	900	924	795	605	376	238	6023
45 S	199	411	668	1013	1525	2185	3086	4009	4805	5409	5785	6023	6023
50 M	93	100	125	204	358	510	745	769	645	450	234	122	4354
50 S	93	193	318	521	879	1389	2134	2903	3548	3999	4232	4354	4354
55 M	33	35	41	92	210	360	590	614	495	300	119	47	2937
55 S	33	68	110	202	412	772	1363	1976	2471	2772	2891	2937	2937
60 M	9	9	8	27	92	217	435	459	346	166	45	14	1826
60 S	9	19	26	54	145	362	797	1256	1602	1768	1812	1826	1826

Corn Growing Degree Days
50 M	239	242	283	332	425	502	636	648	577	492	355	270	5001
50 S	239	481	763	1096	1521	2023	2659	3307	3885	4376	4731	5001	5001

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