RUSH 1N, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(057287) RUSH
From Year=1916 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	14	21	72	204	447	716	926	853	587	294	77	17	4229
40 S	14	35	107	311	758	1474	2400	3254	3841	4135	4212	4229	4229
45 M	2	6	28	109	306	567	771	698	442	176	30	4	3140
45 S	2	8	36	145	451	1018	1789	2487	2929	3106	3136	3140	3140
50 M	0	1	8	46	182	419	616	544	304	86	7	0	2214
50 S	0	1	9	55	237	656	1273	1816	2120	2206	2213	2214	2214
55 M	0	0	1	14	88	278	462	390	180	32	1	0	1445
55 S	0	0	1	15	103	381	842	1232	1412	1444	1445	1445	1445
60 M	0	0	0	2	30	155	309	241	83	7	0	0	827
60 S	0	0	0	2	32	188	497	738	821	827	827	827	827

Corn Growing Degree Days
50 M	32	39	89	179	302	447	582	536	384	236	92	35	2955
50 S	32	71	160	339	641	1089	1671	2207	2591	2827	2919	2955	2955

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