SANTA BARBARA, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(047902) SANTA BARBARA
From Year=1927 To Year=2005
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	432	428	517	571	654	707	834	864	806	736	567	463	7579
40 S	432	860	1377	1948	2602	3309	4143	5006	5812	6549	7115	7579	7579
45 M	280	287	362	421	499	557	679	709	656	581	417	309	5756
45 S	280	567	928	1350	1849	2406	3084	3793	4449	5030	5447	5756	5756
50 M	139	153	209	272	344	407	524	554	506	426	268	163	3965
50 S	139	292	502	773	1118	1524	2048	2602	3108	3534	3802	3965	3965
55 M	44	52	82	131	190	257	369	399	356	272	130	54	2333
55 S	44	95	177	308	498	755	1123	1522	1878	2150	2280	2333	2333
60 M	8	10	18	40	63	112	214	244	207	126	38	9	1089
60 S	8	18	36	77	140	252	465	709	916	1042	1080	1089	1089

Corn Growing Degree Days
50 M	240	230	274	307	359	409	521	552	501	435	327	261	4415
50 S	240	470	744	1051	1410	1819	2340	2892	3393	3827	4154	4415	4415

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