LEROY 9 WSW, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(054945) LEROY 5 WSW
From Year=1893 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	11	29	103	244	504	797	1037	987	686	352	93	19	4862
40 S	11	40	143	387	891	1688	2725	3712	4398	4750	4844	4862	4862
45 M	2	8	47	143	360	647	882	832	540	230	42	5	3737
45 S	2	9	57	200	560	1207	2089	2921	3461	3691	3733	3737	3737
50 M	0	1	17	70	231	499	727	678	399	130	13	1	2765
50 S	0	1	18	88	319	818	1545	2223	2622	2751	2764	2765	2765
55 M	0	0	4	27	127	356	572	523	269	59	2	0	1940
55 S	0	0	4	31	158	514	1086	1609	1878	1938	1940	1940	1940
60 M	0	0	1	7	55	224	419	370	157	21	0	0	1254
60 S	0	0	1	8	63	287	706	1076	1233	1254	1254	1254	1254

Corn Growing Degree Days
50 M	19	38	99	184	312	491	654	626	433	253	87	25	3222
50 S	19	57	156	341	653	1144	1798	2424	2857	3110	3197	3222	3222

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