SAN MARCIAL, NEW MEXICO

Period of Record General Climate Summary - Growing Degree Days

Station:(297907) SAN MARCIAL
From Year=1914 To Year=1949
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	45	145	340	549	810	1060	1211	1125	893	589	203	49	7018
40 S	45	189	529	1078	1888	2948	4159	5284	6178	6766	6969	7018	7018
45 M	12	54	204	401	655	910	1056	970	743	434	99	12	5550
45 S	12	66	270	670	1326	2236	3291	4262	5005	5439	5538	5550	5550
50 M	2	14	97	259	501	760	901	815	594	283	36	3	4264
50 S	2	16	113	372	873	1633	2533	3349	3942	4226	4262	4264	4264
55 M	0	2	35	133	349	610	746	660	445	152	7	0	3141
55 S	0	3	38	171	521	1130	1876	2536	2981	3133	3141	3141	3141
60 M	0	1	10	48	208	460	591	505	299	59	1	0	2180
60 S	0	1	10	58	266	726	1317	1822	2121	2180	2180	2180	2180

Corn Growing Degree Days
50 M	68	159	288	401	531	636	748	708	577	428	208	74	4827
50 S	68	228	516	916	1447	2083	2831	3540	4117	4545	4753	4827	4827

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