ALAMO DAM 6 ESE, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(020099) ALAMO DAM 6 ESE
From Year=1962 To Year=1974
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	266	397	581	769	1092	1316	1579	1519	1253	911	525	277	10486
40 S	266	663	1244	2014	3106	4422	6001	7520	8773	9684	10209	10486	10486
45 M	138	260	427	619	937	1166	1424	1364	1103	757	378	146	8720
45 S	138	399	826	1445	2382	3548	4972	6336	7439	8196	8573	8720	8720
50 M	49	139	281	469	782	1016	1269	1209	953	604	240	53	7063
50 S	49	188	468	938	1720	2736	4005	5213	6166	6771	7010	7063	7063
55 M	11	56	156	322	627	866	1114	1054	803	454	127	11	5601
55 S	11	67	223	545	1172	2038	3152	4206	5009	5463	5590	5601	5601
60 M	1	15	66	191	473	716	959	899	653	309	50	1	4333
60 S	1	16	83	274	746	1462	2421	3320	3973	4282	4332	4333	4333

Corn Growing Degree Days
50 M	238	305	404	496	657	765	939	922	761	575	378	231	6671
50 S	238	543	948	1443	2101	2866	3804	4726	5487	6062	6440	6671	6671

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