DUNSMUIR TREATMENT PLAN, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(042574) DUNSMUIR TREATMENT PLAN
From Year=1978 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	61	104	206	348	589	777	981	938	743	509	171	67	5494
40 S	61	165	371	719	1308	2085	3066	4004	4747	5256	5427	5494	5494
45 M	11	36	96	214	435	627	826	783	593	357	74	15	4067
45 S	11	47	143	357	792	1419	2245	3028	3621	3978	4052	4067	4067
50 M	1	8	32	108	289	478	671	628	444	219	21	1	2900
50 S	1	9	41	149	438	916	1587	2215	2659	2878	2899	2900	2900
55 M	0	1	6	40	167	334	516	473	299	108	3	0	1947
55 S	0	1	7	47	214	548	1064	1537	1836	1944	1947	1947	1947
60 M	0	0	0	8	79	201	363	319	169	40	0	0	1179
60 S	0	0	0	8	87	288	651	970	1139	1179	1179	1179	1179

Corn Growing Degree Days
50 M	46	82	150	234	370	483	601	570	472	350	116	48	3522
50 S	46	128	278	512	882	1365	1966	2537	3008	3358	3474	3522	3522

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