ASPEN 1 SW, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(050372) ASPEN 1 SW
From Year=1980 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 1 19 89 284 511 702 656 424 169 24 0 2878
40 S 0 1 20 109 393 903 1605 2261 2685 2854 2878 2878 2878
45 M 0 0 3 31 163 364 547 501 283 74 5 0 1970
45 S 0 0 3 34 197 561 1108 1609 1892 1966 1970 1970 1970
50 M 0 0 0 6 69 225 393 346 155 22 0 0 1215
50 S 0 0 0 6 75 300 693 1039 1194 1215 1215 1215 1215
55 M 0 0 0 0 17 109 240 196 57 3 0 0 622
55 S 0 0 0 0 18 126 367 562 619 622 622 622 622
60 M 0 0 0 0 2 32 105 69 11 0 0 0 218
60 S 0 0 0 0 2 34 138 207 218 218 218 218 218
Corn Growing Degree Days
50 M 1 4 27 84 206 340 442 405 286 144 32 2 1972
50 S 1 5 32 115 321 661 1103 1508 1795 1939 1970 1972 1972
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