DURANGO, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(052441) DURANGO WATER RESOURCES
From Year=1991 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	1	11	91	224	490	728	938	878	628	317	61	2	4371
40 S	1	12	104	328	818	1547	2485	3363	3991	4308	4369	4371	4371
45 M	0	2	29	112	340	578	783	723	478	187	20	0	3253
45 S	0	2	31	143	483	1062	1845	2568	3046	3233	3253	3253	3253
50 M	0	1	5	38	201	429	628	568	332	87	3	0	2291
50 S	0	1	6	44	245	674	1302	1870	2202	2289	2291	2291	2291
55 M	0	0	0	8	91	284	473	413	194	27	0	0	1491
55 S	0	0	0	8	100	383	857	1270	1464	1491	1491	1491	1491
60 M	0	0	0	1	26	153	319	259	80	3	0	0	843
60 S	0	0	0	1	27	181	500	759	839	843	843	843	843

Corn Growing Degree Days
50 M	6	21	102	197	347	478	602	560	403	239	68	7	3029
50 S	6	26	129	326	672	1150	1753	2313	2716	2955	3023	3029	3029

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