THIEF RIVER FALLS 2, MINNESOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(218247) THIEF RIVER FALLS 2
From Year=1972 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 0 10 159 490 727 894 839 518 182 16 0 3835
40 S 0 0 10 168 659 1386 2280 3119 3636 3818 3834 3835 3835
45 M 0 0 1 87 353 577 739 684 376 97 5 0 2919
45 S 0 0 1 88 441 1018 1757 2441 2817 2914 2919 2919 2919
50 M 0 0 0 43 230 428 584 529 247 43 1 0 2107
50 S 0 0 0 43 274 702 1286 1815 2063 2106 2107 2107 2107
55 M 0 0 0 19 133 287 430 377 142 15 0 0 1403
55 S 0 0 0 19 152 438 868 1245 1387 1402 1403 1403 1403
60 M 0 0 0 7 66 164 280 236 71 4 0 0 828
60 S 0 0 0 7 73 237 517 753 824 828 828 828 828
Corn Growing Degree Days
50 M 0 0 7 114 312 454 580 536 309 107 8 0 2428
50 S 0 0 7 121 434 887 1467 2004 2312 2420 2428 2428 2428
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