TRINIDAD, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(058429) TRINIDAD
From Year=1898 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	41	62	159	320	578	833	994	940	719	430	145	51	5271
40 S	41	103	262	582	1159	1992	2986	3926	4645	5075	5220	5271	5271
45 M	12	21	76	198	427	683	839	785	570	289	66	16	3982
45 S	12	33	109	307	734	1417	2256	3041	3610	3899	3966	3982	3982
50 M	2	5	27	100	284	533	684	630	423	164	22	3	2877
50 S	2	7	34	134	418	951	1635	2265	2688	2852	2874	2877	2877
55 M	0	1	6	37	159	386	529	475	280	72	4	0	1950
55 S	0	1	7	45	204	590	1119	1594	1874	1946	1949	1950	1950
60 M	0	0	1	9	67	244	374	321	153	21	0	0	1190
60 S	0	0	1	10	77	322	696	1017	1169	1190	1190	1190	1190

Corn Growing Degree Days
50 M	58	74	143	237	375	531	645	609	465	308	136	65	3647
50 S	58	132	275	512	887	1418	2063	2672	3138	3446	3582	3647	3647

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