NEVADA CITY, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(046136) NEVADA CITY
From Year=1893 To Year=2012
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	87	111	185	305	520	719	947	912	727	498	215	93	5320
40 S	87	199	383	689	1209	1928	2875	3787	4514	5012	5227	5320	5320
45 M	25	41	87	181	369	569	792	757	577	348	106	26	3878
45 S	25	66	153	334	703	1272	2064	2822	3399	3747	3852	3878	3878
50 M	3	10	30	88	233	421	637	602	429	213	38	3	2707
50 S	3	13	43	131	364	786	1422	2025	2453	2666	2704	2707	2707
55 M	0	1	7	32	125	281	482	448	286	108	8	0	1777
55 S	0	1	8	40	165	445	927	1375	1661	1769	1777	1777	1777
60 M	0	0	1	8	52	159	328	295	162	41	1	0	1048
60 S	0	0	1	8	61	220	548	844	1006	1047	1048	1048	1048

Corn Growing Degree Days
50 M	61	77	126	206	331	456	598	582	474	330	143	64	3448
50 S	61	138	264	470	801	1257	1856	2438	2912	3242	3384	3448	3448

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