United States Department of Agriculture

Agricultural Marketing Service

Federal Grain Inspection Service

Report August 1, 2023

UGMA Moisture Meter Performance

This document contains plots that show the performance for instruments based on FGIS’s Unified Grain 

Moisture Algorithm (UGMA). The data were collected on FGIS’s UGMA Master System for the crops listed 

on each plot. The differences are instrument moisture results minus USDA-FGIS air oven moisture results.

The plots show data for the spring/summer and fall harvest grain groups. The specific grain types included 

in each grain group are listed below the grain group title of each plot. The “mean” value is the average 

difference between the UGMA results and the air oven results for all samples on the plot. The Standard 

Deviation of Differences (SDD) value is a measure of the variability of differences between the UGMA 

results and the air oven results. Approximately two thirds of UGMA results were within +/- the listed SDD 

value for that grain group.

The y-axis range for all plots is +/- 2 % moisture difference, and the x-axis is the % moisture (air oven 

value).

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online at How to File a Program Discrimination Complaint and at any USDA office or write a letter addressed to USDA and 

provide in the letter all of the information requested in the form. To request a copy of the complaint form, call (866) 632-9992. 

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Distribution: FGIS, OSP, Industry Originating Office: TSD IIB
UGMA Moisture Meter Performance 

Spring/Summer and Fall Crops

August 1, 2023

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Contents

1. Barley Grain Group 2012 - 2022 ...........................................................................................3

2. Durum Grain Group 2018 - 2022...........................................................................................3

3. Oats Grain Group 2018 - 2022 ..............................................................................................4

4. Hulless Oats Grain Group Year 2019 ...................................................................................4

5. Hard wheat Grain Group 2018 - 2022...................................................................................5

6. Soft Wheat Grain Group 2018 - 2022....................................................................................5

7. Triticale & Rye Grain Group 2010 - 2022 .............................................................................6

8. Corn Grain Group 2018 - 2022..............................................................................................6

9. Sorghum Grain Group 2018 - 2022.......................................................................................7

10. Soybean Grain Group 2018 - 2022 .....................................................................................7

11. Sunflower Grain Group 2014 - 2022...................................................................................8

12. Long Grain Rough Rice Group 2018 - 2022 ......................................................................8

13. Medium Grain Rough Rice Group 2018 - 2022..................................................................9

14. Short Grain Rough Rice Group 2015 - 2022......................................................................9

15. Brown Rice Group 2012 - 2018.........................................................................................10

16. Long & Medium Milled Rice Group 2011 - 2022..............................................................10

17. Short Grain Milled Rice Group 2012 - 2022 .....................................................................11

18. Parboiled Rice Group 2012 - 2021....................................................................................11

19. Canola Grain Group 2014 - 2018 ......................................................................................12

20. Bean 1 Grain Group 2014 - 2021 ......................................................................................12

21. Bean 2 Grain Group 2019 - 2021 ......................................................................................13

22. Bean 3 Grain Group 2016 - 2021 ......................................................................................13

23. Bean 4 Grain Group 2008 - 2022 ......................................................................................14

24. Bean 5 Grain Group 2016 - 2019 ......................................................................................14

25. Peas Grain Group 2012 - 2021..........................................................................................15

26. Mustard Grain Group 2012 - 2022 ....................................................................................15

27. Oriental Mustard Grain Group 2008 - 2015......................................................................16

28. Flaxseed Grain Group 2009 - 2018...................................................................................16

29. Safflower Grain Group 2008 - 2022 ..................................................................................17

30. Buckwheat Grain Group 2012 - 2013 ...............................................................................17

31. Popcorn Grain Group 2012 - 2022....................................................................................18
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1. Barley Grain Group 2012 - 2022

2. Durum Grain Group 2018 - 2022
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Spring/Summer and Fall Crops

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3. Oats Grain Group 2018 - 2022

4. Hulless Oats Grain Group Year 2019
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Spring/Summer and Fall Crops

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5. Hard wheat Grain Group 2018 - 2022

6. Soft Wheat Grain Group 2018 - 2022
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Spring/Summer and Fall Crops

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7. Triticale & Rye Grain Group 2010 - 2022

8. Corn Grain Group 2018 - 2022
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Spring/Summer and Fall Crops

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9. Sorghum Grain Group 2018 - 2022

10. Soybean Grain Group 2018 - 2022
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Spring/Summer and Fall Crops

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11. Sunflower Grain Group 2014 - 2022

12. Long Grain Rough Rice Group 2018 - 2022
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Spring/Summer and Fall Crops

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13. Medium Grain Rough Rice Group 2018 - 2022

14. Short Grain Rough Rice Group 2015 - 2022
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Spring/Summer and Fall Crops

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15. Brown Rice Group 2012 - 2018

16. Long & Medium Milled Rice Group 2011 - 2022
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Spring/Summer and Fall Crops

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17. Short Grain Milled Rice Group 2012 - 2022

18. Parboiled Rice Group 2012 - 2021
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Spring/Summer and Fall Crops

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19. Canola Grain Group 2014 - 2018

20. Bean 1 Grain Group 2014 - 2021
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Spring/Summer and Fall Crops

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21. Bean 2 Grain Group 2019 - 2021

22. Bean 3 Grain Group 2016 - 2021
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Spring/Summer and Fall Crops

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23. Bean 4 Grain Group 2008 - 2022

24. Bean 5 Grain Group 2016 - 2019
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Spring/Summer and Fall Crops

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25. Peas Grain Group 2012 - 2021

26. Mustard Grain Group 2012 - 2022
UGMA Moisture Meter Performance 

Spring/Summer and Fall Crops

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27. Oriental Mustard Grain Group 2008 - 2015

28. Flaxseed Grain Group 2009 - 2018
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Spring/Summer and Fall Crops

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29. Safflower Grain Group 2008 - 2022

30. Buckwheat Grain Group 2012 - 2013
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Spring/Summer and Fall Crops

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31. Popcorn Grain Group 2012 - 2022