High Yield Ag Solutions

Hybrid Corn Planting Forecast

Guide: OK to plant corn when 5-Day GDU Accumulation greater than or equal to 40 and GDU are trending up. Careful with minimum temperatures below 50 (highlighted in yellow).
Clarksdale, MS Greenwood, MS Leland, MS Yazoo City, MS Bainbridge, GA Newport, AR
Date Low Temp (F) GDU 5 Day GDU Accumulation Low Temp (F) GDU 5 Day GDU Accumulation Low Temp (F) GDU 5 Day GDU Accumulation Low Temp (F) GDU 5 Day GDU Accumulation Low Temp (F) GDU 5 Day GDU Accumulation Low Temp (F) GDU 5 Day GDU Accumulation
10/10/2021 64.0 26 128 68.0 28.00 140 65.0 28.00 137 64.0 24.00 120 66.0 26.00 116
10/11/2021 64.0 23 126 67.0 27.00 138 62.0 25.00 135 63.0 24.00 122 59.0 20.00 106
10/12/2021 57.0 22 113 68.0 28.00 122 61.0 24.00 122 64.0 24.00 116 53.0 18.00 95
10/13/2021 72.0 29 101 71.0 29.00 106 72.0 30.00 110 63.0 24.00 104 68.0 26.00 87
10/14/2021 72.0 28 84 71.0 28.00 90 73.0 30.00 93 63.0 24.00 92 69.0 26.00 72
10/15/2021 59.0 24 68 64.0 26.00 76 63.0 26.00 77 64.0 26.00 82 51.0 16.00 58
10/16/2021 50.0 10 61 48.0 11.00 68 48.0 12.00 69 57.0 18.00 74 46.0 9.00 56
10/17/2021 45.0 10 70 43.0 12.00 78 44.0 12.00 78 50.0 12.00 77 42.0 10.00 59
10/18/2021 45.0 12 72 44.0 13.00 80 42.0 13.00 82 48.0 12.00 87 44.0 11.00 60
10/19/2021 45.0 12 77 47.0 14.00 85 45.0 14.00 88 49.0 14.00 92 44.0 12.00 64
10/20/2021 52.0 17 90 54.0 18.00 95 51.0 18.00 98 55.0 18.00 96 46.0 14.00 76
10/21/2021 57.0 19 85 57.0 21.00 98 56.0 21.00 100 62.0 21.00 101 50.0 12.00 75
10/22/2021 50.0 12 74 48.0 14.00 89 52.0 16.00 92 61.0 22.00 96 45.0 11.00 71
10/23/2021 50.0 17 72 52.0 18.00 91 52.0 19.00 93 54.0 17.00 86 50.0 15.00 70
10/24/2021 66.0 25 59 64.0 24.00 83 64.0 24.00 84 64.0 24.00 92 54.0 18.00 87 66.0 24.00 59
10/25/2021 53.0 12 38 60.0 21.00 66 60.0 20.00 68 64.0 24.00 77 67.0 23.00 79 52.0 13.00 41
10/26/2021 46.0 8 32 49.0 12.00 54 50.0 13.00 58 52.0 15.00 63 57.0 16.00 64 44.0 8.00 36
10/27/2021 51.0 10 32 54.0 16.00 54 56.0 17.00 57 57.0 17.00 60 51.0 12.00 58 51.0 10.00 38
10/28/2021 50.0 4 30 55.0 10.00 50 54.0 10.00 52 56.0 12.00 56 61.0 18.00 58 50.0 4.00 36
10/29/2021 49.0 4 30 51.0 7.00 50 51.0 8.00 52 53.0 9.00 57 55.0 10.00 52 49.0 6.00 36
10/30/2021 46.0 6 31 49.0 9.00 51 49.0 10.00 52 49.0 10.00 58 50.0 8.00 54 46.0 8.00 36
10/31/2021 45.0 8 31 47.0 12.00 52 47.0 12.00 52 47.0 12.00 60 48.0 10.00 58 44.0 10.00 34
11/01/2021 46.0 8 29 48.0 12.00 50 49.0 12.00 50 50.0 13.00 60 48.0 12.00 60 45.0 8.00 31
11/02/2021 46.0 4 27 51.0 10.00 48 52.0 10.00 48 52.0 13.00 58 50.0 12.00 60 47.0 4.00 30
11/03/2021 41.0 5 29 45.0 8.00 48 46.0 8.00 48 46.0 10.00 55 50.0 12.00 59 41.0 6.00 32
11/04/2021 46.0 6 30 50.0 10.00 49 49.0 10.00 50 52.0 12.00 55 51.0 12.00 57 44.0 6.00 32
11/05/2021 46.0 6 31 49.0 10.00 49 48.0 10.00 50 51.0 12.00 54 52.0 12.00 57 44.0 7.00 33

This table shows the five-day forward looking GDU accumulation for previous and forecast weather observations. The GDU accumulation is for a row in the table and includes the next 4 days. Researchers recommend that when a location receives more than 40 accumulated GDUs hybrid corn can be planted. High Yield Ag Solutions and KTS Wireless do not warrant the success of any recommendation. Absolutely no warranties are made regarding the success of these recommendations for any particular purpose. User expressly assumes the risk of all factors, including but not limited to acts of God, drought, wind and rain damage, crop disease, and the like, which may affect these recommendations.