HURON RGNL AP, SOUTH DAKOTA

Period of Record General Climate Summary - Growing Degree Days

Station:(394127) HURON WB AIRPORT
From Year=1948 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 1 5 51 231 552 834 1055 987 641 295 44 2 4697
40 S 1 5 56 287 839 1674 2728 3715 4356 4651 4695 4697 4697
45 M 0 1 23 136 404 684 900 832 494 182 16 0 3672
45 S 0 1 24 160 564 1248 2148 2980 3474 3656 3672 3672 3672
50 M 0 0 9 71 268 535 745 677 354 99 4 0 2762
50 S 0 0 9 81 348 883 1628 2305 2659 2758 2762 2762 2762
55 M 0 0 3 33 154 388 590 522 230 45 1 0 1966
55 S 0 0 3 36 190 578 1168 1690 1920 1965 1966 1966 1966
60 M 0 0 1 12 74 250 436 370 132 16 0 0 1293
60 S 0 0 1 13 88 338 774 1144 1276 1293 1293 1293 1293
Corn Growing Degree Days
50 M 2 7 43 157 338 531 693 644 402 199 41 3 3061
50 S 2 9 52 209 547 1078 1771 2415 2817 3016 3057 3061 3061
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