OURAY, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(056203) OURAY
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	2	4	29	128	342	585	769	715	506	244	40	3	3366
40 S	2	6	34	163	505	1090	1859	2574	3080	3324	3364	3366	3366
45 M	0	0	6	54	209	436	614	560	360	129	9	0	2377
45 S	0	0	7	60	269	706	1320	1879	2239	2368	2377	2377	2377
50 M	0	0	1	14	102	292	459	405	222	49	1	0	1544
50 S	0	0	1	14	116	408	868	1272	1494	1543	1544	1544	1544
55 M	0	0	0	2	30	162	305	251	103	9	0	0	862
55 S	0	0	0	2	31	193	498	749	852	862	862	862	862
60 M	0	0	0	0	5	64	156	110	28	0	0	0	362
60 S	0	0	0	0	5	68	224	334	362	362	362	362	362

Corn Growing Degree Days
50 M	3	5	25	95	219	366	472	427	306	166	33	4	2119
50 S	3	7	32	127	346	712	1184	1611	1917	2083	2116	2119	2119

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