RUSTIC 9 WSW, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(057296) RUSTIC 9 WSW
From Year=1993 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 2 27 67 233 481 730 674 413 161 34 4 2829
40 S 3 5 33 100 333 814 1544 2217 2630 2791 2825 2829 2829
45 M 0 0 6 21 127 336 575 519 274 75 8 0 1943
45 S 0 0 6 27 155 491 1066 1585 1860 1934 1943 1943 1943
50 M 0 0 0 4 52 204 421 365 153 26 0 0 1226
50 S 0 0 0 4 56 260 681 1046 1199 1225 1226 1226 1226
55 M 0 0 0 0 13 98 270 217 63 5 0 0 667
55 S 0 0 0 0 13 111 381 598 661 667 667 667 667
60 M 0 0 0 0 2 32 133 88 15 0 0 0 269
60 S 0 0 0 0 2 33 166 254 269 269 269 269 269
Corn Growing Degree Days
50 M 3 3 30 66 170 318 455 417 277 126 32 2 1900
50 S 3 6 36 102 273 591 1046 1463 1740 1866 1898 1900 1900
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