FARMINGTON RGNL AP, NEW MEXICO

Period of Record General Climate Summary - Growing Degree Days

Station:(293128) FARMINGTON FAA AIRPORT
From Year=1941 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	4	26	117	340	630	886	1118	1051	774	432	79	8	5466
40 S	4	31	147	488	1117	2004	3122	4173	4947	5379	5458	5466	5466
45 M	0	4	46	209	476	736	963	896	624	287	24	0	4265
45 S	0	4	50	258	734	1470	2434	3330	3954	4241	4265	4265	4265
50 M	0	0	12	103	328	586	808	741	474	162	3	0	3220
50 S	0	0	12	116	444	1030	1839	2580	3054	3216	3220	3220	3220
55 M	0	0	1	37	196	437	653	586	327	69	0	0	2306
55 S	0	0	1	38	234	671	1324	1910	2236	2306	2306	2306	2306
60 M	0	0	0	7	90	291	498	431	187	16	0	0	1521
60 S	0	0	0	7	98	388	887	1318	1505	1521	1521	1521	1521

Corn Growing Degree Days
50 M	8	35	117	254	418	562	713	680	502	301	83	13	3685
50 S	8	43	160	415	832	1394	2108	2788	3290	3590	3673	3685	3685

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