ESTES PARK, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(052759) ESTES PARK
From Year=1896 To Year=1994
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	7	9	27	95	268	494	684	630	409	191	41	13	2868
40 S	7	17	43	138	407	901	1585	2215	2624	2814	2855	2868	2868
45 M	1	2	6	35	144	346	529	475	267	87	11	2	1907
45 S	1	3	9	44	188	535	1064	1539	1806	1893	1905	1907	1907
50 M	0	0	1	8	55	208	375	321	141	26	2	0	1137
50 S	0	0	1	9	64	273	647	968	1109	1135	1137	1137	1137
55 M	0	0	0	1	13	95	222	172	51	5	0	0	558
55 S	0	0	0	1	14	109	331	503	553	558	558	558	558
60 M	0	0	0	0	1	26	88	54	10	1	0	0	180
60 S	0	0	0	0	1	27	115	169	179	180	180	180	180

Corn Growing Degree Days
50 M	5	8	26	91	202	338	446	410	297	167	36	8	2033
50 S	5	13	39	130	332	671	1116	1526	1822	1990	2025	2033	2033

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