SAN LUIS LAKES 3W, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(057433) SAN LUIS LAKES 3W
From Year=1946 To Year=1955
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 1 11 116 324 567 765 682 485 196 8 0 3156
40 S 0 1 13 128 452 1019 1784 2466 2951 3147 3155 3156 3156
45 M 0 0 1 45 192 417 610 527 335 94 0 0 2222
45 S 0 0 1 47 239 656 1266 1793 2128 2222 2222 2222 2222
50 M 0 0 0 9 86 273 455 372 192 29 0 0 1416
50 S 0 0 0 9 95 368 823 1195 1387 1416 1416 1416 1416
55 M 0 0 0 1 22 146 301 218 76 5 0 0 769
55 S 0 0 0 1 23 169 470 688 764 769 769 769 769
60 M 0 0 0 0 2 49 150 78 18 0 0 0 298
60 S 0 0 0 0 2 52 202 280 298 298 298 298 298
Corn Growing Degree Days
50 M 4 15 42 144 265 409 500 463 388 233 57 7 2526
50 S 4 19 61 204 470 878 1378 1841 2229 2463 2520 2526 2526
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