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Period of Record General Climate Summary - Growing Degree Days

Station:(213411) GULL LAKE DAM
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 0 0 14 141 469 736 919 844 528 228 24 1 3905
40 S 0 0 15 155 625 1361 2280 3124 3653 3880 3905 3905 3905
45 M 0 0 5 73 327 586 764 689 384 128 7 0 2964
45 S 0 0 5 78 405 991 1756 2445 2828 2957 2964 2964 2964
50 M 0 0 1 33 203 437 609 534 251 62 1 0 2133
50 S 0 0 1 35 238 675 1284 1818 2069 2131 2133 2133 2133
55 M 0 0 0 13 108 294 455 381 143 24 0 0 1418
55 S 0 0 0 14 122 416 870 1251 1394 1418 1418 1418 1418
60 M 0 0 0 4 47 168 303 235 68 7 0 0 833
60 S 0 0 0 4 52 219 523 758 826 833 833 833 833
Corn Growing Degree Days
50 M 0 0 12 102 283 453 601 536 303 131 14 0 2437
50 S 0 1 12 114 397 851 1452 1987 2290 2422 2436 2437 2437
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