NORTHGLENN, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(055984) NORTHGLENN
From Year=1984 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	44	51	162	295	561	835	1049	986	690	378	128	39	5217
40 S	44	94	256	552	1113	1948	2997	3982	4672	5050	5178	5217	5217
45 M	14	16	81	181	413	685	894	831	543	248	64	13	3985
45 S	14	31	112	293	706	1392	2285	3116	3659	3908	3972	3985	3985
50 M	4	3	34	93	278	536	739	676	401	141	26	3	2934
50 S	4	7	41	134	412	949	1687	2363	2764	2906	2931	2934	2934
55 M	0	0	9	37	162	390	584	521	269	66	6	0	2045
55 S	0	1	10	47	209	599	1183	1704	1973	2039	2045	2045	2045
60 M	0	0	1	10	76	252	430	368	154	22	1	0	1314
60 S	0	0	1	11	87	339	769	1137	1291	1314	1314	1314	1314

Corn Growing Degree Days
50 M	55	62	145	219	354	514	653	621	435	271	114	47	3490
50 S	55	117	262	481	835	1349	2002	2622	3057	3328	3443	3490	3490

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