ORACLE 2 SE, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(026119) ORACLE 2 SE
From Year=1950 To Year=2011
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	196	239	380	568	874	1127	1232	1159	1017	760	397	212	8162
40 S	196	436	816	1384	2258	3385	4617	5775	6792	7553	7949	8162	8162
45 M	89	129	243	421	719	977	1077	1004	867	606	260	103	6495
45 S	89	218	461	882	1601	2578	3655	4659	5525	6131	6392	6495	6495
50 M	27	53	131	282	565	827	922	849	717	454	144	35	5004
50 S	27	80	210	492	1057	1884	2806	3655	4371	4825	4969	5004	5004
55 M	5	13	54	161	413	677	767	694	567	309	60	7	3725
55 S	5	18	72	232	645	1322	2089	2783	3349	3659	3718	3725	3725
60 M	1	2	15	69	270	527	612	539	417	179	15	0	2646
60 S	1	2	17	86	356	883	1495	2034	2451	2630	2645	2646	2646

Corn Growing Degree Days
50 M	116	146	233	357	570	732	816	783	681	481	235	125	5275
50 S	116	262	495	852	1422	2154	2970	3753	4435	4915	5150	5275	5275

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