BALCH POWER HOUSE, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(040449) BALCH POWER HOUSE
From Year=1950 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	169	255	399	509	780	975	1250	1256	1055	793	366	177	7982
40 S	169	423	822	1331	2111	3085	4336	5592	6646	7440	7805	7982	7982
45 M	63	133	253	363	625	825	1095	1101	905	638	226	69	6295
45 S	63	196	449	811	1436	2261	3356	4457	5362	6000	6226	6295	6295
50 M	13	52	132	230	471	675	940	946	755	484	113	14	4825
50 S	13	64	196	426	897	1572	2512	3458	4213	4698	4811	4825	4825
55 M	1	13	50	124	326	526	785	791	605	337	42	1	3600
55 S	1	14	64	188	514	1040	1825	2616	3221	3558	3599	3600	3600
60 M	0	1	13	53	197	379	630	636	456	205	11	0	2580
60 S	0	1	14	66	263	642	1272	1908	2364	2569	2580	2580	2580

Corn Growing Degree Days
50 M	57	121	212	290	482	629	819	824	689	489	167	58	4837
50 S	57	178	390	680	1162	1791	2610	3433	4122	4612	4778	4837	4837

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