BLYTHE AP, CALIFORNIA

Period of Record General Climate Summary - Growing Degree Days

Station:(040927) BLYTHE CAA AIRPORT
From Year=1948 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	443	527	755	944	1235	1459	1696	1659	1419	1094	668	432	12330
40 S	443	970	1725	2669	3904	5362	7059	8717	10137	11231	11898	12330	12330
45 M	293	387	600	794	1080	1309	1541	1504	1269	939	518	280	10513
45 S	293	680	1280	2074	3154	4462	6004	7508	8777	9716	10233	10513	10513
50 M	159	250	445	644	925	1159	1386	1349	1119	784	369	144	8734
50 S	159	410	855	1499	2424	3582	4969	6317	7437	8221	8590	8734	8734
55 M	61	129	295	494	770	1009	1231	1194	969	630	230	49	7061
55 S	61	191	486	980	1750	2759	3990	5184	6153	6782	7012	7061	7061
60 M	13	48	163	348	615	859	1076	1039	819	476	115	9	5579
60 S	13	61	223	571	1186	2045	3121	4160	4979	5456	5570	5579	5579

Corn Growing Degree Days
50 M	266	320	467	594	771	881	1044	1031	886	698	413	260	7630
50 S	266	586	1052	1646	2417	3298	4342	5373	6259	6958	7370	7630	7630

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