BLACK CANYON GUNNISON, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(050754) BLACK CANYON GUNNISON
From Year=2004 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 37 118 347 596 823 751 480 181 41 0 3375
40 S 0 0 37 154 502 1098 1921 2673 3153 3334 3375 3375 3375
45 M 0 0 10 49 219 448 668 596 338 86 11 0 2426
45 S 0 0 10 59 278 727 1395 1991 2329 2415 2426 2426 2426
50 M 0 0 1 13 112 306 513 441 205 28 1 0 1621
50 S 0 0 1 15 127 433 946 1387 1592 1620 1621 1621 1621
55 M 0 0 0 2 40 177 358 288 94 6 0 0 965
55 S 0 0 0 2 42 219 577 865 959 965 965 965 965
60 M 0 0 0 0 8 76 206 145 26 0 0 0 461
60 S 0 0 0 0 8 84 290 435 461 461 461 461 461
Corn Growing Degree Days
50 M 1 3 50 117 263 401 528 481 332 160 47 1 2384
50 S 1 3 53 170 433 834 1362 1844 2176 2336 2383 2384 2384
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