LOS GATOS, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(045123) LOS GATOS
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	244	308	417	502	646	771	901	884	808	668	418	263	6830
40 S	244	552	969	1470	2116	2888	3789	4673	5480	6148	6566	6830	6830
45 M	112	173	264	352	491	621	746	729	658	513	270	127	5056
45 S	112	285	549	901	1392	2014	2760	3488	4146	4659	4929	5056	5056
50 M	32	67	130	207	337	471	591	574	508	358	137	39	3452
50 S	32	100	230	437	774	1245	1837	2410	2918	3276	3413	3452	3452
55 M	5	14	44	94	191	322	436	419	358	210	46	6	2144
55 S	5	19	63	157	348	670	1106	1525	1882	2092	2138	2144	2144
60 M	0	1	9	31	81	181	282	264	212	90	8	0	1159
60 S	0	1	11	41	123	303	585	849	1060	1151	1159	1159	1159

Corn Growing Degree Days
50 M	113	156	230	297	387	471	563	552	496	397	227	122	4011
50 S	113	269	499	796	1183	1654	2217	2769	3265	3662	3889	4011	4011

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