ROSEAU, MINNESOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(217087) ROSEAU 1 E
From Year=1895 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 8 113 405 656 836 764 449 176 9 0 3416
40 S 0 0 8 121 526 1183 2018 2782 3231 3407 3416 3416 3416
45 M 0 0 2 57 273 507 681 609 313 96 2 0 2540
45 S 0 0 2 60 333 840 1521 2130 2442 2538 2540 2540 2540
50 M 0 0 1 26 166 361 526 455 195 44 0 0 1774
50 S 0 0 1 27 193 554 1080 1535 1730 1774 1774 1774 1774
55 M 0 0 0 10 89 227 372 307 105 16 0 0 1126
55 S 0 0 0 10 99 326 698 1006 1110 1126 1126 1126 1126
60 M 0 0 0 3 40 120 227 176 47 5 0 0 619
60 S 0 0 0 3 43 163 390 567 614 619 619 619 619
Corn Growing Degree Days
50 M 0 0 6 83 264 408 535 485 277 112 6 0 2176
50 S 0 0 6 89 353 761 1296 1781 2058 2170 2176 2176 2176
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