GUYMON, OKLAHOMA

Period of Record General Climate Summary - Growing Degree Days

Station:(343835) GUYMON
From Year=1909 To Year=2009
Growing Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
40 M 61 92 203 461 772 1032 1216 1185 899 585 205 73 6784
40 S 61 153 357 817 1590 2622 3838 5023 5922 6507 6711 6784 6784
45 M 23 41 113 326 618 882 1061 1030 750 435 113 27 5418
45 S 23 64 177 503 1122 2004 3065 4094 4844 5279 5391 5418 5418
50 M 6 14 53 208 466 732 906 875 601 296 50 7 4214
50 S 6 20 73 281 748 1480 2386 3260 3861 4157 4207 4214 4214
55 M 1 3 19 115 322 582 751 720 454 177 17 1 3164
55 S 1 5 24 139 461 1044 1795 2514 2969 3146 3163 3164 3164
60 M 0 1 5 52 197 435 596 565 315 90 3 0 2259
60 S 0 1 6 58 255 690 1286 1851 2165 2255 2259 2259 2259
Corn Growing Degree Days
50 M 81 99 179 305 476 658 785 765 570 383 173 87 4562
50 S 81 180 359 664 1140 1798 2583 3348 3919 4302 4475 4562 4562
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