GUNNISON 3 SW, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(053662) GUNNISON 1 N
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 0 0 4 66 255 476 674 613 368 106 3 0 2566
40 S 0 0 4 71 326 802 1476 2089 2457 2563 2566 2566 2566
45 M 0 0 0 16 128 328 519 458 225 32 0 0 1707
45 S 0 0 0 16 145 473 991 1449 1674 1706 1707 1707 1707
50 M 0 0 0 2 43 186 364 304 100 5 0 0 1004
50 S 0 0 0 2 44 231 594 898 999 1004 1004 1004 1004
55 M 0 0 0 0 7 74 210 155 26 0 0 0 473
55 S 0 0 0 0 7 81 291 446 473 473 473 473 473
60 M 0 0 0 0 1 15 74 43 3 0 0 0 136
60 S 0 0 0 0 1 15 89 132 136 136 136 136 136
Corn Growing Degree Days
50 M 0 1 18 115 256 391 475 444 335 190 32 1 2258
50 S 0 1 19 134 391 781 1256 1701 2035 2225 2257 2258 2258
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