MONTROSE #2, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(055722) MONTROSE 2
From Year=1895 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 14 96 267 537 796 996 926 656 333 58 5 4686
40 S 3 17 112 380 916 1712 2709 3634 4290 4624 4681 4686 4686
45 M 0 2 36 154 387 646 841 771 507 202 17 1 3564
45 S 0 3 39 192 580 1225 2067 2837 3344 3546 3564 3564 3564
50 M 0 0 9 71 251 497 686 616 361 97 3 0 2591
50 S 0 0 10 80 331 827 1514 2129 2491 2588 2591 2591 2591
55 M 0 0 1 22 136 351 531 461 224 33 0 0 1760
55 S 0 0 1 24 160 510 1042 1503 1727 1760 1760 1760 1760
60 M 0 0 0 4 54 216 377 307 108 6 0 0 1072
60 S 0 0 0 4 58 274 651 958 1066 1072 1072 1072 1072
Corn Growing Degree Days
50 M 4 19 89 197 353 508 633 592 430 249 65 7 3146
50 S 4 23 112 309 662 1171 1803 2395 2824 3074 3139 3146 3146
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