CORTEZ, COLORADO

Period of Record General Climate Summary - Growing Degree Days

Station:(051886) CORTEZ
From Year=1911 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 2 12 75 231 488 748 977 922 655 334 57 4 4506
40 S 2 15 89 321 808 1556 2534 3456 4111 4445 4502 4506 4506
45 M 0 1 23 122 340 598 822 767 506 198 15 0 3393
45 S 0 1 24 146 485 1084 1906 2673 3179 3378 3393 3393 3393
50 M 0 0 4 48 205 449 667 612 359 92 2 0 2438
50 S 0 0 4 52 257 706 1374 1985 2345 2436 2438 2438 2438
55 M 0 0 0 12 97 304 513 457 220 28 0 0 1629
55 S 0 0 0 12 109 413 925 1382 1602 1629 1629 1629 1629
60 M 0 0 0 1 30 171 358 303 101 4 0 0 968
60 S 0 0 0 1 31 202 561 863 964 968 968 968 968
Corn Growing Degree Days
50 M 7 22 91 204 356 499 622 593 442 269 78 12 3195
50 S 7 29 120 324 679 1178 1800 2393 2835 3104 3182 3195 3195
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