SUGARLOAF RESERVOIR, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(058064) SUGARLOAF RESERVOIR
From Year=1948 To Year=2006
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	0	6	84	288	466	408	214	46	1	0	1513
40 S	0	0	0	6	90	378	844	1252	1466	1512	1513	1513	1513
45 M	0	0	0	0	21	156	311	254	93	7	0	0	843
45 S	0	0	0	0	22	177	489	743	835	843	843	843	843
50 M	0	0	0	0	3	57	160	111	23	1	0	0	355
50 S	0	0	0	0	3	60	220	331	354	355	355	355	355
55 M	0	0	0	0	0	10	43	22	3	0	0	0	78
55 S	0	0	0	0	0	10	53	75	78	78	78	78	78
60 M	0	0	0	0	0	1	4	1	0	0	0	0	5
60 S	0	0	0	0	0	1	4	5	5	5	5	5	5

Corn Growing Degree Days
50 M	0	0	2	15	91	229	327	286	186	74	6	0	1218
50 S	0	1	3	18	109	338	665	951	1137	1211	1218	1218	1218

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 Jul 28, 2006
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