BERTHOUD PASS, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(050674) BERTHOUD PASS
From Year=1950 To Year=1985
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	0	0	21	136	327	280	115	13	0	0	892
40 S	0	0	0	0	21	158	485	765	880	892	892	892	892
45 M	0	0	0	0	3	52	178	139	36	1	0	0	409
45 S	0	0	0	0	3	55	233	372	408	409	409	409	409
50 M	0	0	0	0	0	12	59	37	5	0	0	0	114
50 S	0	0	0	0	0	13	71	109	114	114	114	114	114
55 M	0	0	0	0	0	1	7	4	0	0	0	0	12
55 S	0	0	0	0	0	1	7	12	12	12	12	12	12
60 M	0	0	0	0	0	0	0	0	0	0	0	0	0
60 S	0	0	0	0	0	0	0	0	0	0	0	0	0

Corn Growing Degree Days
50 M	0	0	0	1	19	87	186	157	74	14	0	0	538
50 S	0	0	0	1	20	107	293	450	524	538	538	538	538

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