MESA LAKES RESORT, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(055520) MESA LAKES RESORT
From Year=1971 To Year=1979
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	4	76	333	511	444	231	55	2	0	1657
40 S	0	0	0	4	81	414	925	1369	1600	1655	1657	1657	1657
45 M	0	0	0	0	18	202	356	289	107	10	0	0	981
45 S	0	0	0	0	18	220	576	865	972	981	981	981	981
50 M	0	0	0	0	1	91	202	142	31	1	0	0	468
50 S	0	0	0	0	1	92	295	436	467	468	468	468	468
55 M	0	0	0	0	0	24	66	32	5	0	0	0	127
55 S	0	0	0	0	0	24	90	122	127	127	127	127	127
60 M	0	0	0	0	0	2	8	1	0	0	0	0	11
60 S	0	0	0	0	0	2	10	11	11	11	11	11	11

Corn Growing Degree Days
50 M	0	0	1	4	68	222	303	259	144	48	2	0	1051
50 S	0	0	1	5	72	294	597	856	1000	1048	1051	1051	1051

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