KENTFIELD, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(044500) KENTFIELD
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	240	322	424	509	656	765	859	855	795	671	414	257	6767
40 S	240	561	986	1495	2151	2916	3775	4631	5425	6096	6510	6767	6767
45 M	111	185	271	360	501	615	704	700	645	516	265	124	4995
45 S	111	296	566	926	1427	2042	2746	3446	4091	4607	4872	4995	4995
50 M	31	72	132	214	346	465	549	545	495	361	131	36	3378
50 S	31	103	235	449	796	1261	1810	2355	2850	3211	3342	3378	3378
55 M	4	14	41	93	197	315	394	390	345	210	43	5	2051
55 S	4	19	60	153	349	665	1059	1449	1794	2003	2046	2051	2051
60 M	0	1	8	26	79	172	239	237	198	88	6	0	1055
60 S	0	1	9	35	115	287	526	763	961	1048	1055	1055	1055

Corn Growing Degree Days
50 M	96	158	232	298	391	462	533	531	488	399	208	107	3903
50 S	96	254	486	783	1174	1636	2169	2701	3189	3588	3796	3903	3903

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