CANON CITY, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(051294) CANON CITY
From Year=1893 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 70 83 179 350 614 872 1073 1020 756 463 191 81 5752
40 S 70 154 333 683 1297 2169 3242 4262 5018 5481 5671 5752 5752
45 M 25 34 92 226 463 722 918 865 607 321 101 32 4405
45 S 25 58 150 376 839 1561 2479 3344 3951 4273 4374 4405 4405
50 M 5 10 37 123 319 573 763 710 461 196 40 8 3246
50 S 5 15 52 175 495 1067 1831 2541 3002 3198 3237 3246 3246
55 M 1 2 10 52 191 425 608 555 320 97 9 1 2273
55 S 1 3 13 66 256 682 1290 1845 2166 2263 2272 2273 2273
60 M 0 0 2 15 91 284 454 401 192 34 1 0 1475
60 S 0 0 2 17 108 392 846 1247 1439 1474 1475 1475 1475
Corn Growing Degree Days
50 M 73 82 151 244 390 552 696 667 488 316 157 79 3895
50 S 73 155 306 549 939 1492 2188 2855 3343 3659 3816 3895 3895
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