CHEYENNE WELLS, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(051564) CHEYENNE WELLS
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	21	42	133	316	603	884	1095	1046	760	430	120	27	5478
40 S	21	63	196	512	1115	1999	3094	4141	4901	5331	5451	5478	5478
45 M	6	14	65	197	452	734	940	891	612	295	54	7	4267
45 S	6	19	85	281	733	1467	2408	3299	3911	4206	4259	4267	4267
50 M	1	3	25	103	310	585	785	736	466	178	18	1	3212
50 S	1	4	29	133	443	1027	1813	2549	3016	3194	3211	3212	3212
55 M	0	0	7	43	186	437	630	581	327	89	4	0	2306
55 S	0	0	8	51	237	674	1305	1886	2214	2302	2306	2306	2306
60 M	0	0	1	13	92	296	476	427	203	33	0	0	1543
60 S	0	0	1	14	107	403	879	1306	1509	1542	1543	1543	1543

Corn Growing Degree Days
50 M	40	61	137	243	384	550	690	662	484	311	123	44	3729
50 S	40	100	237	480	864	1414	2105	2767	3251	3562	3685	3729	3729

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