BROWNS PARK REFUGE, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(051017) BROWNS PARK REFUGE
From Year=1966 To Year=1997
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	38	175	427	665	869	810	516	210	25	2	3742
40 S	2	6	44	218	645	1310	2179	2989	3505	3716	3741	3742	3742
45 M	0	1	7	81	281	515	714	655	370	102	5	0	2729
45 S	0	1	7	88	369	884	1598	2253	2622	2724	2729	2729	2729
50 M	0	0	1	28	155	367	559	500	232	33	0	0	1875
50 S	0	0	1	29	184	551	1110	1610	1842	1875	1875	1875	1875
55 M	0	0	0	7	60	227	404	346	116	6	0	0	1167
55 S	0	0	0	7	67	294	698	1044	1161	1167	1167	1167	1167
60 M	0	0	0	1	12	109	252	197	39	1	0	0	610
60 S	0	0	0	1	12	121	373	570	609	610	610	610	610

Corn Growing Degree Days
50 M	5	20	74	186	338	471	566	549	420	251	56	7	2943
50 S	5	25	99	285	623	1095	1661	2210	2630	2881	2936	2943	2943

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