TWIN LAKES, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(049105) TWIN LAKES
From Year=1948 To Year=2000
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	3	2	5	29	121	296	525	504	358	167	30	5	2046
40 S	3	5	10	39	160	457	982	1486	1844	2012	2041	2046	2046
45 M	0	0	0	6	46	174	371	351	223	75	5	1	1253
45 S	0	0	1	6	53	227	598	949	1172	1247	1252	1253	1253
50 M	0	0	0	0	11	81	222	205	108	22	0	0	650
50 S	0	0	0	0	12	92	314	519	628	650	650	650	650
55 M	0	0	0	0	1	26	95	86	32	3	0	0	243
55 S	0	0	0	0	1	27	122	208	240	243	243	243	243
60 M	0	0	0	0	0	4	22	20	4	0	0	0	49
60 S	0	0	0	0	0	4	26	45	49	49	49	49	49

Corn Growing Degree Days
50 M	7	6	11	35	97	197	331	318	230	126	33	9	1401
50 S	7	13	24	59	156	353	683	1002	1232	1358	1391	1401	1401

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 Apr 5, 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