UTLEYVILLE, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(058574) UTLEYVILLE
From Year=1920 To Year=1956
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	77	40	97	411	557	971	1093	1015	784	495	129	52	5721
40 S	77	117	213	625	1182	2153	3246	4261	5045	5540	5668	5721	5721
45 M	17	11	28	271	418	821	938	860	634	350	53	22	4422
45 S	17	28	56	326	744	1566	2504	3364	3998	4348	4400	4422	4422
50 M	2	2	8	152	284	674	783	705	485	221	12	6	3333
50 S	2	4	11	163	447	1121	1904	2609	3094	3315	3327	3333	3333
55 M	0	0	1	64	162	529	628	551	341	117	0	1	2394
55 S	0	0	1	65	227	755	1384	1934	2276	2393	2393	2394	2394
60 M	0	0	0	14	74	387	473	397	207	47	0	0	1598
60 S	0	0	0	14	88	475	949	1345	1552	1598	1598	1598	1598

Corn Growing Degree Days
50 M	92	74	100	317	355	608	699	648	501	354	144	62	3953
50 S	92	166	265	583	937	1545	2243	2892	3393	3747	3891	3953	3953

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