LANGDON EXP FARM, NORTH DAKOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(324958) LANGDON EXPERIMENT FARM
From Year=1897 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 8 102 374 629 814 756 441 155 7 0 3286
40 S 0 0 8 109 484 1113 1927 2683 3124 3279 3286 3286 3286
45 M 0 0 2 49 248 481 659 601 307 81 2 0 2429
45 S 0 0 2 52 300 781 1439 2040 2347 2428 2429 2429 2429
50 M 0 0 1 21 146 337 504 447 191 36 0 0 1682
50 S 0 0 1 21 167 504 1008 1454 1646 1682 1682 1682 1682
55 M 0 0 0 7 74 207 351 300 104 13 0 0 1057
55 S 0 0 0 7 82 289 640 940 1044 1057 1057 1057 1057
60 M 0 0 0 2 31 106 210 171 48 3 0 0 572
60 S 0 0 0 2 33 139 349 520 568 572 572 572 572
Corn Growing Degree Days
50 M 0 0 6 78 245 379 510 469 277 113 8 0 2085
50 S 0 0 7 84 329 708 1218 1688 1964 2077 2085 2085 2085
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