MASSADONA 3 E, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(055422) MASSADONA 3 E
From Year=1988 To Year=2009
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	2	63	186	464	726	1003	922	594	282	36	2	4281
40 S	0	2	65	251	715	1441	2444	3367	3961	4243	4279	4281	4281
45 M	0	0	20	95	322	577	848	767	448	162	9	0	3248
45 S	0	0	20	115	437	1013	1862	2629	3077	3239	3248	3248	3248
50 M	0	0	4	36	199	430	693	612	309	73	1	0	2358
50 S	0	0	4	40	239	669	1363	1975	2284	2358	2358	2358	2358
55 M	0	0	1	8	101	291	538	457	183	24	0	0	1604
55 S	0	0	1	9	110	401	939	1397	1580	1604	1604	1604	1604
60 M	0	0	0	1	37	166	384	305	85	3	0	0	982
60 S	0	0	0	1	38	204	589	893	979	982	982	982	982

Corn Growing Degree Days
50 M	1	2	60	144	300	458	639	592	380	206	37	2	2820
50 S	1	3	63	207	507	965	1604	2196	2576	2781	2818	2820	2820

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