EVERGREEN, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(052790) EVERGREEN
From Year=1961 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	6	9	42	117	306	552	754	698	447	192	43	8	3174
40 S	6	15	57	174	480	1032	1786	2484	2930	3123	3166	3174	3174
45 M	1	1	10	44	178	404	599	543	306	89	10	1	2185
45 S	1	2	12	56	234	638	1236	1780	2085	2174	2184	2185	2185
50 M	0	0	1	10	80	260	444	389	178	25	1	0	1388
50 S	0	0	1	11	91	352	796	1185	1362	1388	1388	1388	1388
55 M	0	0	0	1	23	135	291	237	76	3	0	0	767
55 S	0	0	0	1	24	159	450	687	764	767	767	767	767
60 M	0	0	0	0	3	48	146	101	19	0	0	0	318
60 S	0	0	0	0	3	52	197	298	317	318	318	318	318

Corn Growing Degree Days
50 M	31	34	75	134	243	380	489	459	336	210	83	35	2507
50 S	31	65	140	273	516	896	1385	1844	2180	2390	2472	2507	2507

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