LEEDS, NORTH DAKOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(325078) LEEDS
From Year=1935 To Year=2007
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 9 131 424 690 880 825 473 185 11 0 3628
40 S 0 0 10 140 564 1254 2134 2960 3433 3617 3628 3628 3628
45 M 0 0 3 68 291 540 725 670 334 100 2 0 2734
45 S 0 0 3 71 362 902 1627 2298 2632 2732 2734 2734 2734
50 M 0 0 1 32 179 393 570 516 212 46 0 0 1949
50 S 0 0 1 33 212 605 1175 1691 1903 1949 1949 1949 1949
55 M 0 0 0 13 95 255 416 365 118 17 0 0 1279
55 S 0 0 0 13 108 363 779 1144 1262 1279 1279 1279 1279
60 M 0 0 0 4 41 139 268 226 56 4 0 0 740
60 S 0 0 0 4 45 184 453 679 735 740 740 740 740
Corn Growing Degree Days
50 M 0 0 8 99 270 420 561 518 296 135 12 0 2319
50 S 0 0 9 107 377 797 1358 1876 2172 2307 2319 2319 2319
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