WAHPETON 3 N, NORTH DAKOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(329100) WAHPETON 3 N
From Year=1893 To Year=1999
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 23 198 539 791 977 921 596 281 28 1 4355
40 S 0 1 24 221 760 1551 2528 3450 4045 4327 4354 4355 4355
45 M 0 0 8 113 394 641 822 766 450 172 9 0 3376
45 S 0 0 8 121 514 1156 1978 2744 3195 3367 3376 3376 3376
50 M 0 0 2 57 263 492 667 612 314 91 2 0 2500
50 S 0 0 2 59 322 814 1481 2093 2407 2499 2500 2500 2500
55 M 0 0 1 25 155 348 512 458 197 40 0 0 1736
55 S 0 0 1 25 181 528 1041 1498 1696 1736 1736 1736 1736
60 M 0 0 0 8 79 216 359 309 108 14 0 0 1093
60 S 0 0 0 8 87 303 662 971 1079 1093 1093 1093 1093
Corn Growing Degree Days
50 M 0 1 19 137 340 501 638 597 373 179 22 1 2808
50 S 0 1 20 157 497 998 1636 2233 2606 2785 2807 2808 2808
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