OURAY, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(056203) OURAY
From Year=1893 To Year=2006
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 2 4 29 128 338 586 766 714 508 245 39 3 3360
40 S 2 5 34 162 500 1086 1852 2566 3073 3319 3358 3360 3360
45 M 0 0 7 53 205 437 611 559 361 130 9 0 2373
45 S 0 0 7 60 265 702 1313 1872 2233 2363 2373 2373 2373
50 M 0 0 1 14 99 294 456 404 223 50 1 0 1540
50 S 0 0 1 14 113 407 863 1267 1490 1540 1540 1540 1540
55 M 0 0 0 2 29 164 302 251 104 9 0 0 860
55 S 0 0 0 2 31 195 496 747 851 860 860 860 860
60 M 0 0 0 0 4 66 154 110 29 0 0 0 363
60 S 0 0 0 0 4 70 224 334 362 363 363 363 363
Corn Growing Degree Days
50 M 3 4 25 94 217 367 469 426 307 167 32 3 2115
50 S 3 7 32 126 343 710 1179 1605 1912 2079 2111 2115 2115
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