GRAND RAPIDS 1 N, NORTH DAKOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(323665) GRAND RAPIDS 1 N
From Year=1950 To Year=1962
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 2 11 171 497 752 940 926 550 262 19 0 4131
40 S 0 2 13 185 682 1434 2374 3300 3851 4112 4131 4131 4131
45 M 0 1 2 99 354 602 785 771 406 158 4 0 3182
45 S 0 1 3 101 455 1058 1843 2614 3020 3178 3182 3182 3182
50 M 0 0 0 51 222 454 630 616 275 86 0 0 2334
50 S 0 0 0 51 274 728 1358 1974 2249 2334 2334 2334 2334
55 M 0 0 0 23 120 311 475 462 160 37 0 0 1589
55 S 0 0 0 23 143 455 930 1392 1552 1589 1589 1589 1589
60 M 0 0 0 9 52 181 322 312 80 11 0 0 968
60 S 0 0 0 9 61 243 565 877 957 968 968 968 968
Corn Growing Degree Days
50 M 0 2 13 139 327 473 607 594 356 201 27 0 2739
50 S 0 2 15 154 481 955 1562 2156 2511 2712 2739 2739 2739
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