ALHAMBRA 2 NE, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(020104) ALHAMBRA
From Year=1946 To Year=1976
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	346	422	614	796	1076	1293	1547	1489	1275	967	562	369	10756
40 S	346	768	1382	2178	3254	4547	6094	7584	8859	9825	10388	10756	10756
45 M	204	285	459	646	921	1143	1392	1334	1125	812	413	222	8956
45 S	204	489	948	1594	2515	3658	5050	6385	7510	8321	8734	8956	8956
50 M	91	160	308	496	766	993	1237	1179	975	657	269	99	7231
50 S	91	251	559	1055	1821	2815	4052	5231	6206	6863	7132	7231	7231
55 M	24	65	173	348	611	843	1082	1024	825	503	144	26	5667
55 S	24	88	261	609	1220	2063	3145	4170	4995	5498	5641	5667	5667
60 M	3	16	72	211	457	693	927	869	675	353	54	3	4333
60 S	3	19	90	301	758	1451	2378	3247	3922	4275	4330	4333	4333

Corn Growing Degree Days
50 M	268	310	419	507	646	751	940	910	773	598	394	283	6798
50 S	268	578	997	1504	2150	2900	3840	4750	5523	6121	6515	6798	6798

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