U.S. Objective Corn Yield Data - Nov 2020
Corn for Grain Objective Yield Data
The National Agricultural Statistics Service is conducting objective yield
surveys in 10 corn-producing States during 2020. Randomly selected plots in
corn for grain fields are visited monthly from September through harvest to
obtain specific counts and measurements. Data in these tables are rounded
actual field counts from this survey.
Corn for Grain Plant Population per Acre - Selected States: 2016-2020
[Blank data cells indicate estimation period has not yet begun]
-------------------------------------------------------------------------------------------------------------------------------------
State : : : : : :: State : : : : :
and month : 2016 : 2017 : 2018 : 2019 : 2020 :: and month : 2016 : 2017 : 2018 : 2019 : 2020
-------------------------------------------------------------------------------------------------------------------------------------
: number :: : number
: :: :
Illinois : :: Nebraska :
September .....: 31,100 30,800 32,000 31,100 30,600 :: All corn :
October .......: 31,100 30,900 32,000 30,950 30,400 :: September ....: 25,900 25,950 27,100 25,850 27,450
November ......: 31,100 30,950 32,000 30,900 30,400 :: October ......: 25,950 25,800 26,750 25,850 27,450
Final .........: 31,100 30,950 32,000 30,900 :: November .....: 26,000 25,700 26,750 25,700 27,400
: :: Final ........: 26,000 25,700 26,750 25,700
Indiana : :: :
September .....: 30,200 29,550 30,450 29,300 29,850 :: Irrigated :
October .......: 29,950 29,350 30,400 29,050 29,800 :: September ....: 28,200 29,050 30,300 28,300 29,950
November ......: 29,800 29,200 30,400 29,000 29,850 :: October ......: 28,200 29,000 29,900 28,350 30,100
Final .........: 29,800 29,200 30,400 28,950 :: November .....: 28,300 28,750 29,900 28,300 30,100
: :: Final ........: 28,300 28,750 29,900 28,300
Iowa : :: :
September .....: 31,250 31,300 31,350 30,850 31,050 :: Non-irrigated :
October .......: 31,050 31,150 31,150 30,800 31,000 :: September ....: 22,900 22,500 23,350 23,300 24,950
November ......: 31,050 31,150 31,100 30,750 31,050 :: October ......: 23,000 22,200 23,100 23,250 24,750
Final .........: 31,050 31,150 31,100 30,750 :: November .....: 23,000 22,250 23,150 23,000 24,700
: :: Final ........: 23,000 22,250 23,150 23,000
Kansas : :: :
September .....: 22,550 22,050 22,600 21,350 21,700 :: Ohio :
October .......: 22,550 22,100 22,450 21,200 21,650 :: September .....: 30,250 29,250 30,550 30,050 29,800
November ......: 22,550 22,300 22,450 21,200 21,650 :: October .......: 30,100 29,150 30,400 30,100 29,900
Final .........: 22,550 22,300 22,450 21,200 :: November ......: 30,250 29,100 30,400 30,000 29,900
: :: Final .........: 30,250 29,100 30,400 30,000
Minnesota : :: :
September .....: 30,800 30,750 30,950 30,700 31,750 :: South Dakota :
October .......: 30,700 30,550 30,900 30,650 31,800 :: September .....: 26,200 26,250 27,000 26,400 25,450
November ......: 30,550 30,600 30,900 30,550 31,800 :: October .......: 26,100 26,200 26,750 26,100 25,400
Final .........: 30,550 30,600 30,900 30,650 :: November ......: 26,000 26,200 27,000 26,000 25,550
: :: Final .........: 26,000 26,200 27,000 25,900
Missouri : :: :
September .....: 27,300 27,850 28,500 28,200 28,200 :: Wisconsin :
October .......: 27,750 27,850 28,400 27,500 28,150 :: September .....: 30,100 29,450 31,000 30,250 30,300
November ......: 27,800 27,950 28,400 27,600 28,200 :: October .......: 29,900 29,100 30,600 30,150 30,400
Final .........: 27,800 27,950 28,400 27,600 :: November ......: 29,800 29,150 30,650 29,750 30,300
: :: Final .........: 29,800 29,100 30,650 29,850
: :: :
: :: 10 State :
: :: September .....: 29,050 28,800 29,500 28,650 29,000
: :: October .......: 28,950 28,700 29,350 28,500 28,950
: :: November ......: 28,950 28,700 29,400 28,450 28,950
: :: Final .........: 28,950 28,700 29,350 28,450
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Corn for Grain Number of Ears per Acre - Selected States: 2016-2020
[Blank data cells indicate estimation period has not yet begun]
-------------------------------------------------------------------------------------------------------------------------------------
State : : : : : :: State : : : : :
and month : 2016 : 2017 : 2018 : 2019 : 2020 :: and month : 2016 : 2017 : 2018 : 2019 : 2020
-------------------------------------------------------------------------------------------------------------------------------------
: number :: : number
: :: :
Illinois : :: Nebraska :
September .....: 30,350 30,200 31,550 30,300 29,900 :: All corn :
October .......: 30,450 30,300 31,500 30,300 29,800 :: September ....: 25,700 25,800 27,100 25,850 26,800
November ......: 30,450 30,250 31,500 30,150 29,800 :: October ......: 25,350 26,050 26,750 25,950 26,850
Final .........: 30,450 30,250 31,500 30,150 :: November .....: 25,400 25,950 26,800 25,700 26,750
: :: Final ........: 25,400 25,950 26,800 25,700
Indiana : :: :
September .....: 29,600 28,900 30,000 28,900 29,600 :: Irrigated :
October .......: 29,400 29,100 29,800 28,700 29,600 :: September ....: 27,850 28,650 29,950 28,200 28,900
November ......: 29,250 28,850 29,750 28,650 29,600 :: October ......: 27,500 28,950 29,350 28,150 28,850
Final .........: 29,250 28,850 29,750 28,600 :: November .....: 27,550 28,750 29,300 28,000 28,800
: :: Final ........: 27,550 28,750 29,300 28,000
Iowa : :: :
September .....: 30,550 30,600 31,150 30,250 30,600 :: Non-irrigated :
October .......: 30,400 30,600 30,900 30,200 30,450 :: September ....: 22,850 22,600 23,850 23,500 24,650
November ......: 30,500 30,600 30,800 30,100 30,550 :: October ......: 22,550 22,800 23,650 23,700 24,800
Final .........: 30,500 30,600 30,800 30,100 :: November .....: 22,550 22,900 23,850 23,400 24,700
: :: Final ........: 22,550 22,900 23,850 23,400
Kansas : :: :
September .....: 22,650 22,800 22,350 21,550 22,050 :: Ohio :
October .......: 22,450 22,600 21,650 22,250 21,250 :: September .....: 29,750 29,500 30,750 29,850 29,350
November ......: 22,450 22,650 21,700 22,200 21,250 :: October .......: 29,200 29,250 30,300 29,750 29,700
Final .........: 22,450 22,650 21,700 22,200 :: November ......: 29,600 29,150 30,300 29,550 29,700
: :: Final .........: 29,600 29,150 30,300 29,550
Minnesota : :: :
September .....: 30,550 30,750 30,850 30,050 31,750 :: South Dakota :
October .......: 30,350 30,850 30,850 29,800 31,850 :: September .....: 25,650 26,250 28,100 26,450 25,550
November ......: 30,250 30,850 30,800 29,650 31,850 :: October .......: 25,350 26,150 27,750 25,300 25,550
Final .........: 30,250 30,600 30,800 29,700 :: November ......: 25,450 26,200 27,950 25,000 25,700
: :: Final .........: 25,450 25,850 28,050 24,900
Missouri : :: :
September .....: 26,900 27,750 27,400 26,950 27,650 :: Wisconsin :
October .......: 27,150 27,800 27,300 26,950 27,600 :: September .....: 29,300 28,950 30,700 29,850 30,050
November ......: 27,150 27,850 27,300 27,100 27,650 :: October .......: 28,900 28,800 30,450 30,250 30,400
Final .........: 27,150 27,850 27,300 27,100 :: November ......: 28,750 28,600 30,450 29,850 30,350
: :: Final .........: 28,750 28,550 30,450 29,950
: :: :
: :: 10-State :
: :: September .....: 28,550 28,550 29,350 28,200 28,650
: :: October .......: 28,350 28,550 29,100 28,200 28,600
: :: November ......: 28,400 28,500 29,100 28,050 28,600
: :: Final .........: 28,400 28,450 29,100 28,050
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Corn Objective Yield Percent of Samples Processed in the Lab -
United States: 2016-2020
---------------------------------------------------------------------------
: October : November
Year :-----------------------------------------------------------
:Dent stage 1/ : Mature 2/ :Dent stage 1/ : Mature 2/
---------------------------------------------------------------------------
: percent
:
2016 ..........: 17 73 (Z) 96
2017 ..........: 41 51 (Z) 96
2018 ..........: 13 80 (Z) 96
2019 ..........: 49 29 1 94
2020 ..........: 25 68 (Z) 96
---------------------------------------------------------------------------
(Z) Less than half of the unit shown.
1/ Includes corn in the dent stage of development. Ears are firm and
solid. Kernels fully dented with no milk present in most kernels.
2/ Includes that portion of the crop that is mature and ready for harvest.
No green foliage is present.
Corn for Grain Percentage Distribution by Plant Population Per Acre - Selected
States: 2016-2020
----------------------------------------------------------------------------------------
: Plant populations
State and year :-----------------------------------------------------------
:Less than: 20,000- : 22,501- : 25,001- : 27,501- :More than
: 20,000 : 22,500 : 25,000 : 27,500 : 30,000 : 30,000
----------------------------------------------------------------------------------------
: Percent
:
Illinois ...............2016: 0.9 0.5 4.3 11.8 18.0 64.5
2017: 0.5 1.4 3.8 11.5 20.6 62.2
2018: - 0.9 1.4 6.6 15.6 75.5
2019: 0.9 2.8 3.7 9.3 18.7 64.6
2020: 0.6 1.9 5.8 13.5 16.0 62.2
:
Indiana ................2016: 1.7 1.7 8.3 11.6 19.8 56.9
2017: 5.7 4.9 6.5 13.0 21.1 48.8
2018: 1.5 0.8 2.3 10.7 27.5 57.2
2019: 5.6 5.6 5.6 11.1 24.1 48.0
2020: 1.3 3.8 5.1 12.8 19.2 57.8
:
Iowa ...................2016: 0.4 1.8 2.2 8.9 22.7 64.0
2017: 1.3 3.4 2.1 5.9 13.5 73.8
2018: 0.4 1.7 3.3 6.3 19.2 69.1
2019: 0.8 0.8 3.8 9.0 21.1 64.5
2020: - - 4.3 9.4 21.7 64.6
:
Kansas .................2016: 27.9 14.8 19.4 12.0 17.6 8.3
2017: 24.3 21.2 17.2 21.2 12.1 4.0
2018: 33.0 12.4 12.4 14.4 7.2 20.6
2019: 39.9 8.0 12.0 14.7 14.7 10.7
2020: 30.1 14.5 12.7 13.6 16.4 12.7
:
Minnesota ..............2016: 0.8 3.0 4.5 11.4 21.2 59.1
2017: 2.8 4.7 5.6 7.5 12.1 67.3
2018: - 1.7 8.7 6.1 13.9 69.6
2019: 1.4 4.2 8.3 2.8 25.0 58.3
2020: - 0.8 2.3 3.8 19.5 73.6
:
Missouri ...............2016: 3.0 6.0 14.0 28.0 23.0 26.0
2017: 1.9 1.0 15.5 26.2 26.2 29.2
2018: 2.2 6.5 8.6 20.4 28.0 34.3
2019: 2.8 8.3 16.7 22.2 16.7 33.3
2020: 2.8 0.9 11.0 22.0 33.0 30.3
:
Nebraska ...............2016: 9.6 10.1 16.3 20.2 19.7 24.1
2017: 16.8 6.3 12.6 19.4 17.8 27.1
2018: 12.0 4.9 7.1 16.4 25.1 34.5
2019: 15.1 12.3 12.3 17.9 19.8 22.6
2020: 10.8 8.8 8.8 8.8 23.0 39.8
:
Ohio ...................2016: 1.9 2.9 1.0 9.6 26.9 57.7
2017: 2.7 4.4 7.1 15.0 25.7 45.1
2018: 1.0 3.9 3.9 7.8 23.5 59.9
2019: - 4.3 4.3 12.8 19.1 59.5
2020: - - 14.4 13.6 25.4 46.6
:
South Dakota ...........2016: 13.2 5.3 17.1 26.3 18.4 19.7
2017: 8.1 13.5 16.2 16.2 25.7 20.3
2018: 7.4 12.6 11.6 18.9 21.1 28.4
2019: 9.3 7.0 23.3 23.3 30.1 7.0
2020: 13.7 9.6 21.9 21.9 13.7 19.2
:
Wisconsin ..............2016: 2.4 4.9 3.7 11.0 18.3 59.7
2017: 4.0 2.7 6.7 20.0 21.3 45.3
2018: 2.0 2.0 - 7.9 19.8 68.3
2019: - - 9.4 15.6 25.0 50.0
2020: 1.4 1.4 8.1 6.8 23.0 59.3
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- Represents zero.
Corn for Grain Frequency of Farmer Reported Row Widths - Selected States: 2016-2020
--------------------------------------------------------------------------------------------
: Row width (inches)
State and year :---------------------------------------------------------------
: Less than : : : : More than
: 30 : 30 : 36 : 38 : 38
--------------------------------------------------------------------------------------------
: number
:
Illinois ...............2016: 6 218 - 1 -
2017: 6 210 4 1 -
2018: 9 211 - - -
2019: 2 110 1 - -
2020: 8 148 2 - -
:
Indiana ................2016: 8 118 1 1 1
2017: 7 117 - - -
2018: 9 126 1 1 -
2019: 4 53 1 - -
2020: 2 79 1 - -
:
Iowa ...................2016: 12 213 4 4 -
2017: 2 236 3 3 -
2018: 12 234 2 1 -
2019: 3 136 - 1 -
2020: 9 140 5 3 -
:
Kansas .................2016: 8 105 - - -
2017: 2 106 2 - -
2018: 10 91 - - -
2019: 9 70 - - -
2020: 2 110 - - -
:
Minnesota ..............2016: 27 113 2 - -
2017: 27 89 2 - -
2018: 21 97 3 2 -
2019: 15 63 3 1 -
2020: 25 109 - 1 -
:
Missouri ...............2016: 5 96 1 2 -
2017: 3 101 5 2 -
2018: 5 90 1 2 1
2019: 5 30 1 2 -
2020: 7 99 - 5 -
:
Nebraska ...............2016: 162 23 - -
2017: 2 169 23 2 -
2018: 6 160 25 - -
2019: 3 98 15 - -
2020: 2 138 15 - -
:
Ohio ...................2016: 4 105 - 1 -
2017: 2 109 1 1 -
2018: 3 100 - - -
2019: 2 45 1 - -
2020: 5 113 - - -
:
South Dakota ...........2016: 5 71 4 1 2
2017: 6 75 1 1 -
2018: 8 92 2 2 -
2019: 5 45 - 1 -
2020: 11 62 2 2 -
:
Wisconsin ..............2016: 2 84 2 2 -
2017: 4 83 5 1 -
2018: 4 108 4 2 -
2019: 1 39 - - -
2020: 3 78 1 2 -
--------------------------------------------------------------------------------------------
- Represents zero.
Corn for Grain Percentage Distribution by Measured Row Width and Average Row Width - Selected
States: 2016-2020
----------------------------------------------------------------------------------------------
: : Row width (inches) :
State and year :Samples :-----------------------------------------------:Average
: : 20.5 : 20.6- :30.6- :34.6- : 36.6- :38.6 or : row
: :or less : 30.5 : 34.5 : 36.5 : 38.5 :greater : width
----------------------------------------------------------------------------------------------
: number ----------------- percent ---------------- inches
:
Illinois ...............2016: 211 2.4 87.6 9.5 - - 0.5 29.8
2017: 209 1.4 85.1 12.0 0.5 0.5 0.5 30.1
2018: 212 1.9 87.7 10.4 - - - 29.9
2019: 107 - 83.2 15.9 0.9 - - 30.2
2020: 156 2.6 85.2 10.9 - 1.3 - 29.8
:
Indiana ................2016: 121 3.3 72.7 22.3 1.7 - - 29.8
2017: 123 2.4 78.9 17.9 0.8 - - 29.8
2018: 131 6.1 71.7 19.8 0.8 0.8 0.8 29.8
2019: 54 1.9 77.7 18.5 - 1.9 - 30.2
2020: 78 1.3 80.7 16.7 - 1.3 - 30.2
:
Iowa ...................2016: 225 2.2 76.9 19.1 0.9 0.9 - 30.0
2017: 237 0.8 76.4 19.0 0.4 3.0 0.4 30.4
2018: 239 3.8 77.4 17.2 0.8 0.8 - 29.9
2019: 133 1.5 78.1 18.8 0.8 0.8 - 30.0
2020: 138 2.9 79.7 11.6 2.9 2.9 - 30.1
:
Kansas .................2016: 108 4.6 85.2 10.2 - - - 29.6
2017: 99 2.0 75.8 21.2 - - 1.0 30.1
2018: 97 3.1 76.3 20.6 - - - 29.7
2019: 75 4.0 81.3 14.7 - - - 29.9
2020: 110 1.8 78.2 20.0 - - - 29.7
:
Minnesota ..............2016: 132 2.3 78.0 17.4 0.8 1.5 - 28.8
2017: 107 4.7 81.4 8.4 0.9 3.7 0.9 28.9
2018: 115 1.7 82.6 11.3 2.6 0.9 0.9 29.3
2019: 72 5.6 72.1 18.1 4.2 - - 29.0
2020: 133 - 84.9 14.3 - - 0.8 28.9
:
Missouri ...............2016: 100 1.0 76.0 20.0 1.0 2.0 - 30.0
2017: 103 1.9 66.1 25.2 3.9 1.0 1.9 30.4
2018: 93 1.1 76.2 18.3 2.2 1.1 1.1 30.1
2019: 36 2.8 74.9 13.9 2.8 5.6 - 30.2
2020: 109 5.5 80.7 11.0 - 2.8 - 29.6
:
Nebraska ...............2016: 178 - 65.2 20.2 9.0 4.5 1.1 31.2
2017: 191 - 70.7 15.7 9.4 4.2 - 31.0
2018: 183 1.6 65.6 15.3 12.6 4.9 - 31.2
2019: 106 1.9 71.7 14.2 11.3 0.9 - 30.8
2020: 148 - 67.6 23.0 7.4 2.0 - 30.8
:
Ohio ...................2016: 104 4.8 81.7 10.6 1.9 1.0 - 29.8
2017: 113 0.9 83.2 15.0 0.9 - - 30.0
2018: 102 2.9 79.5 17.6 - - - 29.9
2019: 47 4.3 87.2 6.4 2.1 - - 29.8
2020: 118 1.7 88.1 10.2 - - - 29.9
:
South Dakota ...........2016: 76 2.6 64.6 26.3 3.9 1.3 1.3 30.4
2017: 74 8.1 62.1 28.4 - 1.4 - 29.6
2018: 95 5.3 69.4 20.0 2.1 2.1 1.1 30.0
2019: 43 4.7 67.4 25.6 - 2.3 - 30.0
2020: 73 5.5 72.6 15.1 2.7 1.4 2.7 29.8
:
Wisconsin ..............2016: 82 1.2 72.0 22.0 1.2 1.2 2.4 30.5
2017: 75 1.3 61.5 29.3 5.3 1.3 1.3 30.6
2018: 101 0.0 75.2 21.8 - 3.0 - 30.2
2019: 32 3.1 84.4 12.5 - - - 29.6
2020: 74 - 75.6 18.9 2.7 1.4 1.4 30.4
----------------------------------------------------------------------------------------------
- Represents zero.
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