EHRENBERG, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(022787) EHRENBERG
From Year=1941 To Year=1977
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	400	505	711	910	1195	1387	1634	1596	1370	1043	636	417	11803
40 S	400	904	1615	2525	3720	5107	6741	8337	9707	10750	11386	11803	11803
45 M	253	364	556	760	1040	1237	1479	1441	1220	888	486	266	9989
45 S	253	617	1173	1932	2972	4210	5688	7130	8349	9238	9723	9989	9989
50 M	125	230	402	610	885	1087	1324	1286	1070	733	338	133	8222
50 S	125	355	757	1366	2251	3339	4662	5949	7018	7752	8090	8222	8222
55 M	43	115	254	460	730	937	1169	1131	920	579	200	42	6579
55 S	43	157	411	871	1601	2538	3707	4839	5758	6337	6537	6579	6579
60 M	8	42	130	315	575	787	1014	976	770	426	92	7	5141
60 S	8	49	179	494	1069	1856	2870	3846	4616	5042	5134	5141	5141

Corn Growing Degree Days
50 M	280	335	451	565	732	828	982	970	832	655	419	286	7336
50 S	280	616	1067	1632	2364	3192	4174	5144	5975	6630	7050	7336	7336

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