TACOMA, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(058154) TACOMA
From Year=1908 To Year=1987
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	29	88	285	540	767	695	490	179	31	0	3103
40 S	0	0	29	117	402	941	1708	2403	2893	3072	3103	3103	3103
45 M	0	0	7	27	153	390	612	541	343	81	6	0	2158
45 S	0	0	7	34	187	577	1188	1729	2072	2153	2158	2158	2158
50 M	0	0	1	5	59	247	457	387	201	22	0	0	1379
50 S	0	0	1	6	65	312	768	1155	1357	1379	1379	1379	1379
55 M	0	0	0	0	19	121	302	233	85	3	0	0	762
55 S	0	0	0	0	19	140	441	674	759	762	762	762	762
60 M	0	0	0	0	4	39	148	94	17	0	0	0	302
60 S	0	0	0	0	4	43	191	285	302	302	302	302	302

Corn Growing Degree Days
50 M	3	3	36	85	226	381	485	419	316	141	48	1	2143
50 S	3	5	41	126	351	732	1217	1636	1953	2093	2142	2143	2143

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