CLOVERDALE, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(041838) CLOVERDALE 3 S
From Year=1950 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	246	313	431	539	743	903	1031	1019	904	732	421	246	7528
40 S	246	558	990	1529	2272	3175	4206	5225	6129	6861	7282	7528	7528
45 M	115	179	280	390	588	753	876	864	754	577	274	115	5765
45 S	115	294	573	963	1551	2305	3181	4044	4798	5376	5649	5765	5765
50 M	33	74	147	249	433	603	721	709	604	423	145	35	4176
50 S	33	107	254	503	936	1539	2260	2969	3573	3996	4141	4176	4176
55 M	5	19	59	134	284	454	566	554	454	273	58	6	2867
55 S	5	24	84	217	501	955	1521	2075	2529	2803	2861	2867	2867
60 M	1	3	17	57	156	308	411	399	306	146	17	1	1820
60 S	1	3	20	77	233	541	952	1350	1657	1802	1820	1820	1820

Corn Growing Degree Days
50 M	121	164	241	320	448	553	623	619	551	441	227	120	4429
50 S	121	285	527	847	1295	1848	2471	3090	3640	4081	4309	4429	4429

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