REDFIELD, SOUTH DAKOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(397052) REDFIELD 2 NE
From Year=1949 To Year=2011
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 3 36 214 536 805 1013 961 612 275 34 1 4490
40 S 0 3 38 252 789 1593 2607 3568 4180 4455 4489 4490 4490
45 M 0 0 14 125 390 655 858 806 466 168 12 0 3495
45 S 0 0 14 139 529 1184 2043 2849 3315 3483 3494 3495 3495
50 M 0 0 4 64 258 506 703 651 329 90 3 0 2609
50 S 0 0 4 68 327 832 1536 2187 2516 2606 2609 2609 2609
55 M 0 0 1 28 149 360 548 497 210 41 0 0 1835
55 S 0 0 1 29 178 538 1087 1583 1793 1834 1835 1835 1835
60 M 0 0 0 10 72 226 395 347 118 15 0 0 1182
60 S 0 0 0 10 81 307 702 1049 1167 1182 1182 1182 1182
Corn Growing Degree Days
50 M 1 5 33 156 338 511 659 619 393 199 37 3 2953
50 S 1 6 39 195 533 1044 1703 2322 2715 2914 2951 2953 2953
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