CROOKSTON NW EXP STN, MINNESOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(211891) CROOKSTON NW EXP STN
From Year=1890 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 13 148 466 735 916 848 522 213 16 0 3877
40 S 0 0 13 161 627 1362 2278 3127 3649 3861 3877 3877 3877
45 M 0 0 4 79 328 585 761 693 381 120 4 0 2956
45 S 0 0 4 83 410 996 1757 2450 2831 2951 2956 2956 2956
50 M 0 0 1 37 208 437 606 538 253 58 1 0 2141
50 S 0 0 1 38 247 684 1290 1829 2082 2140 2141 2141 2141
55 M 0 0 0 14 117 296 452 386 149 23 0 0 1438
55 S 0 0 0 15 132 428 880 1265 1414 1438 1438 1438 1438
60 M 0 0 0 4 57 172 301 243 74 8 0 0 859
60 S 0 0 0 4 61 233 534 777 851 859 859 859 859
Corn Growing Degree Days
50 M 0 0 9 101 291 456 596 542 316 131 11 0 2452
50 S 0 0 9 110 400 856 1452 1994 2311 2441 2452 2452 2452
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