COLUMBIA 8 N, SOUTH DAKOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(391873) COLUMBIA 8 N
From Year=1949 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 0 1 26 194 518 787 989 924 585 252 27 0 4304
40 S 0 1 27 221 739 1526 2515 3439 4024 4276 4303 4304 4304
45 M 0 0 9 110 373 637 834 769 439 149 8 0 3328
45 S 0 0 9 119 493 1129 1963 2733 3172 3321 3328 3328 3328
50 M 0 0 3 55 243 487 679 614 303 75 1 0 2461
50 S 0 0 3 58 301 788 1467 2082 2385 2460 2461 2461 2461
55 M 0 0 1 24 136 342 524 460 187 31 0 0 1705
55 S 0 0 1 24 161 503 1027 1487 1674 1705 1705 1705 1705
60 M 0 0 0 8 62 209 371 311 100 9 0 0 1069
60 S 0 0 0 8 70 279 649 960 1060 1069 1069 1069 1069
Corn Growing Degree Days
50 M 1 2 23 136 314 495 651 601 369 174 26 1 2794
50 S 1 3 25 161 475 970 1622 2223 2592 2766 2792 2794 2794
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