COAL CREEK CANYON, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(051681) COAL CREEK CANYON
From Year=1994 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 3 3 21 50 185 422 664 596 359 133 30 2 2468
40 S 3 6 27 77 262 684 1348 1944 2303 2436 2466 2468 2468
45 M 0 0 4 14 91 281 509 442 227 59 6 0 1633
45 S 0 0 4 18 109 390 899 1341 1568 1627 1633 1633 1633
50 M 0 0 0 2 35 158 356 290 118 19 0 0 979
50 S 0 0 0 2 38 195 552 842 960 979 979 979 979
55 M 0 0 0 0 9 68 209 149 45 3 0 0 483
55 S 0 0 0 0 9 76 286 435 480 483 483 483 483
60 M 0 0 0 0 1 19 87 44 10 0 0 0 160
60 S 0 0 0 0 1 20 106 150 160 160 160 160 160
Corn Growing Degree Days
50 M 2 2 20 47 132 265 396 351 229 94 23 2 1564
50 S 2 4 25 71 204 469 865 1216 1445 1539 1562 1564 1564
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