YAMPA, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(059265) YAMPA
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	8	63	240	455	664	620	373	134	13	0	2571
40 S	0	0	9	72	312	767	1431	2051	2424	2557	2571	2571	2571
45 M	0	0	1	19	125	309	509	465	236	52	2	0	1718
45 S	0	0	1	20	145	455	964	1429	1665	1716	1718	1718	1718
50 M	0	0	0	3	46	177	354	311	118	12	0	0	1022
50 S	0	0	0	3	49	226	580	891	1009	1022	1022	1022	1022
55 M	0	0	0	0	9	75	202	163	38	2	0	0	488
55 S	0	0	0	0	9	84	286	449	487	488	488	488	488
60 M	0	0	0	0	1	18	72	47	5	0	0	0	144
60 S	0	0	0	0	1	19	91	138	144	144	144	144	144

Corn Growing Degree Days
50 M	0	1	12	71	194	319	429	401	272	138	21	1	1859
50 S	0	1	13	85	278	598	1026	1427	1699	1837	1858	1859	1859

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