Counties That Reported Historic August Rainfall in 2025

A person joyfully standing in the rain with arms wide open in a dramatic black and white scene.

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Last month, rainfall totals fell well short of historic norms in much of the United States. According to the National Oceanic and Atmospheric Administration, an average of 2.3 inches of rain fell across the Lower 48 in August 2025, about a third of an inch less than the 20th century baseline average. Limited precipitation, in addition to above-average temperatures reported throughout the summer of 2025, have fueled drought conditions in much of the country.

Recent data from the U.S. Drought Monitor shows that 66.4% of land area in the United States is currently abnormally dry – including over 23% of land area reporting severe drought conditions, or worse. Other parts of the country, however, are experiencing the opposite extreme. Precipitation totals hit record or near-record highs in over a dozen U.S. counties last month.

Using data from NOAA, Climate Crisis 247 identified the U.S. counties where August rainfall totals hit a historic high in 2025. We reviewed last month’s precipitation volume for over 3,100 counties and county equivalents, and identified those for which August 2025 ranks among the three rainiest August periods since record keeping began in 1895. All supplemental precipitation data is from NOAA. Population data are five-year estimates from the U.S. Census Bureau’s 2023 American Community Survey. Counties are listed in ascending order, based on the difference between total precipitation in August 2025 and the average August precipitation from 1901 to 2000.

The counties on this list span four states – Georgia, Oklahoma, South Dakota, and Wisconsin – and are collectively home to more than 1.3 million Americans.

17. Perkins County, South Dakota

Total rainfall in county, August 2025: 3.68 inches (2nd wettest wettest August on record)
Average August rainfall in county, 1901-2000: 1.54 inches
Total precipitation in August 2025 compared to baseline, August average: +2.14 inches
County population: 3,058

16. Stanley County, South Dakota

*Photo by Jean-Luc Crucifix on Unsplash*

Total rainfall in county, August 2025: 4.32 inches (3rd wettest wettest August on record)
Average August rainfall in county, 1901-2000: 1.86 inches
Total precipitation in August 2025 compared to baseline, August average: +2.46 inches
County population: 3,012

15. Haakon County, South Dakota

Total rainfall in county, August 2025: 4.27 inches (wettest wettest August on record)
Average August rainfall in county, 1901-2000: 1.79 inches
Total precipitation in August 2025 compared to baseline, August average: +2.48 inches
County population: 1,708

14. Ziebach County, South Dakota

Total rainfall in county, August 2025: 5.85 inches (2nd wettest wettest August on record)
Average August rainfall in county, 1901-2000: 1.67 inches
Total precipitation in August 2025 compared to baseline, August average: +4.18 inches
County population: 2,410

13. Harper County, Oklahoma

Total rainfall in county, August 2025: 6.99 inches (2nd wettest wettest August on record)
Average August rainfall in county, 1901-2000: 2.62 inches
Total precipitation in August 2025 compared to baseline, August average: +4.37 inches
County population: 3,231

12. Ellis County, Oklahoma

Total rainfall in county, August 2025: 7.09 inches (3rd wettest wettest August on record)
Average August rainfall in county, 1901-2000: 2.59 inches
Total precipitation in August 2025 compared to baseline, August average: +4.5 inches
County population: 3,717

11. Dewey County, Oklahoma

Total rainfall in county, August 2025: 7.21 inches (2nd wettest wettest August on record)
Average August rainfall in county, 1901-2000: 2.7 inches
Total precipitation in August 2025 compared to baseline, August average: +4.51 inches
County population: 4,433

10. Milwaukee County, Wisconsin

Total rainfall in county, August 2025: 8.09 inches (3rd wettest wettest August on record)
Average August rainfall in county, 1901-2000: 3.25 inches
Total precipitation in August 2025 compared to baseline, August average: +4.84 inches
County population: 927,656

9. Bibb County, Georgia

Total rainfall in county, August 2025: 9.5 inches (3rd wettest wettest August on record)
Average August rainfall in county, 1901-2000: 4.19 inches
Total precipitation in August 2025 compared to baseline, August average: +5.31 inches
County population: 156,543

8. Jones County, Georgia

*Photo by Mehmet Suat Gunerli on Pexels*

Total rainfall in county, August 2025: 9.61 inches (3rd wettest wettest August on record)
Average August rainfall in county, 1901-2000: 4.19 inches
Total precipitation in August 2025 compared to baseline, August average: +5.42 inches
County population: 28,526

7. Ozaukee County, Wisconsin

Total rainfall in county, August 2025: 8.77 inches (2nd wettest wettest August on record)
Average August rainfall in county, 1901-2000: 3.26 inches
Total precipitation in August 2025 compared to baseline, August average: +5.51 inches
County population: 92,345

6. Baldwin County, Georgia

Total rainfall in county, August 2025: 9.97 inches (3rd wettest wettest August on record)
Average August rainfall in county, 1901-2000: 4.22 inches
Total precipitation in August 2025 compared to baseline, August average: +5.75 inches
County population: 43,669

5. Putnam County, Georgia

Total rainfall in county, August 2025: 9.97 inches (2nd wettest wettest August on record)
Average August rainfall in county, 1901-2000: 4.19 inches
Total precipitation in August 2025 compared to baseline, August average: +5.78 inches
County population: 22,524

4. Morgan County, Georgia

Total rainfall in county, August 2025: 9.99 inches (3rd wettest wettest August on record)
Average August rainfall in county, 1901-2000: 4.18 inches
Total precipitation in August 2025 compared to baseline, August average: +5.81 inches
County population: 20,614

3. Hancock County, Georgia

*Photo by reza shayestehpour on Unsplash*

Total rainfall in county, August 2025: 10.34 inches (3rd wettest wettest August on record)
Average August rainfall in county, 1901-2000: 4.25 inches
Total precipitation in August 2025 compared to baseline, August average: +6.09 inches
County population: 8,630

2. Taliaferro County, Georgia

Total rainfall in county, August 2025: 10.61 inches (3rd wettest wettest August on record)
Average August rainfall in county, 1901-2000: 4.3 inches
Total precipitation in August 2025 compared to baseline, August average: +6.31 inches
County population: 1,740

1. Greene County, Georgia

Total rainfall in county, August 2025: 10.64 inches (3rd wettest wettest August on record)
Average August rainfall in county, 1901-2000: 4.19 inches
Total precipitation in August 2025 compared to baseline, August average: +6.45 inches
County population: 19,586

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