EHRENBERG 2 E, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(022790) EHRENBERG 2 E
From Year=1977 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	487	556	776	981	1253	1494	1699	1673	1436	1114	696	457	12622
40 S	487	1044	1819	2801	4053	5547	7247	8920	10355	11469	12166	12622	12622
45 M	334	416	621	831	1098	1344	1544	1518	1286	959	546	304	10800
45 S	334	750	1370	2201	3299	4643	6188	7705	8991	9950	10497	10800	10800
50 M	188	278	466	681	943	1194	1389	1363	1136	804	397	161	8999
50 S	188	466	931	1613	2555	3749	5139	6502	7637	8441	8839	8999	8999
55 M	74	151	314	531	788	1044	1234	1208	986	649	256	57	7291
55 S	74	225	539	1070	1858	2902	4136	5344	6330	6979	7234	7291	7291
60 M	15	59	177	383	633	894	1079	1053	836	495	134	9	5767
60 S	15	74	251	634	1267	2161	3240	4293	5129	5623	5757	5767	5767

Corn Growing Degree Days
50 M	282	332	481	626	799	914	1055	1049	907	721	429	267	7860
50 S	282	614	1094	1720	2518	3432	4487	5536	6443	7164	7593	7860	7860

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