WINTER PARK, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(059175) WINTER PARK
From Year=1942 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	0	0	1	18	123	313	512	452	195	51	0	0	1664
40 S	0	0	1	19	141	454	966	1418	1613	1664	1664	1664	1664
45 M	0	0	0	2	44	181	357	299	87	10	0	0	979
45 S	0	0	0	2	46	227	584	882	969	979	979	979	979
50 M	0	0	0	0	9	77	205	150	26	0	0	0	467
50 S	0	0	0	0	9	86	291	441	467	467	467	467	467
55 M	0	0	0	0	1	18	79	40	3	0	0	0	141
55 S	0	0	0	0	1	19	98	139	141	141	141	141	141
60 M	0	0	0	0	0	1	14	4	0	0	0	0	18
60 S	0	0	0	0	0	1	15	18	18	18	18	18	18

Corn Growing Degree Days
50 M	0	1	5	53	147	298	405	373	228	99	11	0	1620
50 S	0	1	7	59	206	504	909	1282	1510	1609	1620	1620	1620

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