TIMPAS 13 SW, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(058290) TIMPAS 13 SW
From Year=1978 To Year=1993
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	29	55	174	364	644	924	1128	1065	789	434	140	26	5770
40 S	29	84	258	621	1265	2189	3316	4381	5170	5604	5744	5770	5770
45 M	7	19	91	238	494	774	973	910	642	297	73	8	4525
45 S	7	26	117	355	850	1623	2596	3506	4147	4444	4517	4525	4525
50 M	1	4	36	135	352	624	818	755	497	176	30	2	3430
50 S	1	5	42	177	528	1153	1970	2725	3222	3398	3428	3430	3430
55 M	0	1	11	61	219	476	663	600	357	83	8	0	2478
55 S	0	1	11	72	291	768	1430	2031	2387	2471	2478	2478	2478
60 M	0	0	3	21	114	333	508	446	227	28	1	0	1679
60 S	0	0	3	23	137	470	977	1424	1650	1678	1679	1679	1679

Corn Growing Degree Days
50 M	43	68	163	274	409	575	708	679	500	311	127	37	3893
50 S	43	110	273	547	956	1531	2239	2917	3417	3728	3856	3893	3893

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