LAKEPORT, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(044701) LAKEPORT
From Year=1920 To Year=2001
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	110	184	284	415	635	829	1047	1007	825	583	272	135	6326
40 S	110	294	578	993	1628	2457	3505	4511	5336	5919	6191	6326	6326
45 M	33	76	148	270	480	679	892	852	675	428	141	44	4719
45 S	33	109	257	527	1007	1687	2579	3431	4105	4534	4675	4719	4719
50 M	6	19	54	145	329	529	737	697	526	278	52	8	3380
50 S	6	24	79	224	553	1082	1819	2516	3042	3320	3373	3380	3380
55 M	0	2	11	59	193	381	582	542	378	147	12	1	2309
55 S	0	2	13	73	265	646	1229	1770	2149	2296	2308	2309	2309
60 M	0	0	1	16	91	242	428	387	237	57	1	0	1461
60 S	0	0	1	17	108	350	778	1165	1402	1459	1461	1461	1461

Corn Growing Degree Days
50 M	72	119	194	287	420	514	612	595	518	392	172	77	3972
50 S	72	191	385	671	1092	1606	2218	2813	3331	3724	3895	3972	3972

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