Average flow of the Great Miami River at Dayton, by month, in cubic feet per second.
Great Miami River at Dayton: 1,158 in October 2026. Change from September 2026: −59.3%. From a year earlier: +109.8%.
Next update: November 2026 figures, expected around Dec 2, 2026.
What this means
The Great Miami River at Dayton figure, 1,158, was 109.8% higher than in October 2025 (552).
| October 2026 | October 2025 | Change | |
|---|---|---|---|
| Great Miami River at Dayton | 1,158 | 552 | +109.8% |
Common questions
What is the latest figure for great Miami River flow in At Dayton?
Great Miami River at Dayton: 1,158 in October 2026, from the U.S. Geological Survey.
How has the figure for great Miami River flow in At Dayton changed over the past year?
It was 1,158 in October 2026, against 552 in October 2025 (+109.8%).
How often is the figure for great Miami River flow updated?
Monthly, from the U.S. Geological Survey. Next update: November 2026 figures, expected around Dec 2, 2026.
Related data
About this data
The monthly average of the USGS gauge's daily mean discharge (cubic feet per second) for the Great Miami River at Dayton, site 03270500, measured since 1913. Recent values are provisional until USGS reviews them, which can take months; months missing more than a few days are left out. Flow is not the same as river height (stage), which is what flood warnings use.
Source: U.S. Geological Survey, Great Miami River at Dayton, gauge 03270500, daily values. Updated November 5, 2026, monthly. Download the data (CSV).