NORTH LAKE, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(055990) NORTH LAKE
From Year=1909 To Year=1980
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	3	4	16	67	233	452	616	575	378	165	24	7	2542
40 S	3	7	23	90	323	775	1392	1966	2345	2510	2534	2542	2542
45 M	0	0	3	20	115	305	461	420	238	70	4	1	1637
45 S	0	1	3	23	138	444	905	1325	1563	1632	1636	1637	1637
50 M	0	0	0	3	36	169	307	266	115	16	0	0	913
50 S	0	0	0	4	39	208	515	781	896	913	913	913	913
55 M	0	0	0	0	5	65	158	125	35	1	0	0	389
55 S	0	0	0	0	5	70	228	352	388	389	389	389	389
60 M	0	0	0	0	0	14	43	32	5	0	0	0	93
60 S	0	0	0	0	0	14	57	88	93	93	93	93	93

Corn Growing Degree Days
50 M	9	8	27	85	202	328	399	372	276	165	51	17	1940
50 S	9	18	45	130	332	660	1059	1431	1707	1872	1922	1940	1940

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