TROUT LAKE, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(058454) TROUT LAKE
From Year=1914 To Year=1986
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	2	20	112	292	507	462	270	78	6	1	1751
40 S	0	0	3	22	135	427	934	1397	1667	1744	1751	1751	1751
45 M	0	0	0	2	31	163	352	308	136	17	0	0	1010
45 S	0	0	0	2	34	197	549	857	993	1010	1010	1010	1010
50 M	0	0	0	0	3	66	200	157	40	1	0	0	467
50 S	0	0	0	0	3	69	269	426	466	467	467	467	467
55 M	0	0	0	0	0	15	71	42	3	0	0	0	130
55 S	0	0	0	0	0	15	85	127	130	130	130	130	130
60 M	0	0	0	0	0	1	10	2	0	0	0	0	13
60 S	0	0	0	0	0	1	11	13	13	13	13	13	13

Corn Growing Degree Days
50 M	13	14	24	57	124	238	347	311	207	96	39	20	1489
50 S	13	27	51	108	232	470	817	1127	1335	1431	1469	1489	1489

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