FLORISSANT FOSSIL BED, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(052965) FLORISSANT FOSSIL BED
From Year=1988 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	0	0	10	66	231	457	619	559	340	99	8	0	2389
40 S	0	0	10	76	307	764	1383	1942	2282	2381	2389	2389	2389
45 M	0	0	1	18	112	308	464	404	198	29	0	0	1534
45 S	0	0	1	19	130	439	903	1307	1505	1534	1534	1534	1534
50 M	0	0	0	3	34	169	309	250	83	3	0	0	852
50 S	0	0	0	3	38	206	516	766	849	852	852	852	852
55 M	0	0	0	1	7	61	160	108	20	0	0	0	356
55 S	0	0	0	1	7	68	228	336	356	356	356	356	356
60 M	0	0	0	0	1	11	41	18	1	0	0	0	72
60 S	0	0	0	0	1	12	52	71	72	72	72	72	72

Corn Growing Degree Days
50 M	5	6	42	107	230	363	440	391	295	161	38	4	2082
50 S	5	11	52	159	390	752	1193	1584	1879	2040	2078	2082	2082

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