CIRCLE F RANCH, NEW MEXICO

Period of Record General Climate Summary - Growing Degree Days

Station:(291840) CIRCLE F RANCH
From Year=1980 To Year=1995
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	85	149	292	521	755	1002	1117	1052	834	560	260	98	6726
40 S	85	235	527	1048	1803	2805	3922	4973	5808	6368	6628	6726	6726
45 M	28	68	165	376	600	852	962	897	685	408	151	38	5231
45 S	28	96	261	638	1238	2090	3052	3948	4633	5042	5192	5231	5231
50 M	5	22	70	241	446	702	807	742	536	265	68	12	3916
50 S	5	27	97	338	784	1486	2293	3034	3570	3835	3904	3916	3916
55 M	0	5	20	124	295	552	652	587	388	139	21	2	2786
55 S	0	6	26	150	445	997	1649	2235	2623	2762	2784	2786	2786
60 M	0	1	3	45	163	403	497	432	244	48	4	0	1838
60 S	0	1	3	48	211	614	1110	1542	1786	1834	1838	1838	1838

Corn Growing Degree Days
50 M	106	159	261	382	493	621	719	688	538	387	222	120	4695
50 S	106	265	525	907	1400	2021	2741	3428	3967	4353	4575	4695	4695

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