ROSCOE, SOUTH DAKOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(397277) ROSCOE
From Year=1934 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 2 30 178 484 761 957 919 587 258 31 0 4209
40 S 0 2 32 211 694 1455 2412 3332 3919 4177 4209 4209 4209
45 M 0 0 11 100 342 611 802 764 441 154 10 0 3236
45 S 0 0 11 111 453 1064 1866 2630 3072 3226 3236 3236 3236
50 M 0 0 4 47 216 462 647 609 306 81 2 0 2374
50 S 0 0 4 51 267 729 1376 1986 2291 2372 2374 2374 2374
55 M 0 0 1 20 117 319 493 455 189 36 0 0 1628
55 S 0 0 1 20 137 456 948 1404 1593 1628 1628 1628 1628
60 M 0 0 0 7 51 189 341 306 101 12 0 0 1007
60 S 0 0 0 7 58 247 588 894 995 1007 1007 1007 1007
Corn Growing Degree Days
50 M 1 3 29 131 294 469 618 586 367 180 31 2 2710
50 S 1 4 32 164 458 927 1545 2131 2498 2678 2709 2710 2710
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