Great Miami River at Sidney OH
USGS Site No: 03261500 • Great Miami River • Shelby County, OH
Great Miami River at Sidney OH on the Great Miami River is currently at 1,360 cfs (Very High — 96th percentile for this date) . Gage height: 4.01 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 27 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.
| Percentile | Label | CFS Threshold | Today's Flow |
|---|---|---|---|
| 10th | Very Low threshold | 39 | |
| 25th | Low threshold | 56 | |
| 50th (Median) | Normal (median) | 89 | |
| 75th | High threshold | 135 | |
| 95th | Very High threshold | 1,220 |
30-Day Hydrograph
Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 2,960 | — |
| May 27, 2026 | 2,670 | — |
| May 26, 2026 | 2,230 | — |
| May 25, 2026 | 3,540 | — |
| May 24, 2026 | 5,210 | — |
| May 23, 2026 | 4,540 | — |
| May 22, 2026 | 1,670 | — |
| May 21, 2026 | 2,680 | — |
| May 20, 2026 | 3,290 | — |
| May 19, 2026 | 757 | — |
| May 18, 2026 | 260 | — |
| May 17, 2026 | 191 | — |
| May 16, 2026 | 180 | — |
| May 15, 2026 | 224 | — |
| Apr 21, 2026 | 191 | — |
| Apr 20, 2026 | 249 | — |
| Apr 19, 2026 | 293 | — |
| Apr 18, 2026 | 340 | — |
| Apr 17, 2026 | 440 | — |
| Apr 16, 2026 | 631 | — |
| Apr 15, 2026 | 397 | — |
| Apr 14, 2026 | 224 | — |
| Apr 13, 2026 | 249 | — |
| Apr 12, 2026 | 303 | — |
| Apr 11, 2026 | 339 | — |
| Apr 10, 2026 | 391 | — |
| Apr 9, 2026 | 547 | — |
| Apr 8, 2026 | 774 | — |
| Apr 7, 2026 | 1,040 | — |
| Apr 6, 2026 | 1,340 | — |
Station Information
- USGS Site No
- 03261500
- State
- OH
- County
- Shelby County
- Coordinates
- 40.2870, -84.1499
- Drainage Area
- 541 mi²
- Datum (ft)
- 923.7
- HUC Code
- 05080001
Flood Stage Thresholds
- Action Stage
- 8.0 ft
- Flood Stage
- 10.0 ft
- Moderate Flood
- 14.6 ft
- Major Flood
- 18.0 ft
Currently 5.99 ft below flood stage.
Recent Extremes
- Max discharge
-
5,530 cfsMar 27, 2026
- Min discharge
-
42 cfsOct 2, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Loramie Creek at Lockington OHVery High7.1 mi · 686 cfs
-
Great Miami River at Piqua OHVery High10.3 mi · 2,230 cfs
-
Loramie Creek Near Newport OHVery High12.4 mi · 364 cfs
-
Bokengehalas Creek at DE Graff OHVery High12.6 mi · 111 cfs
-
Great Miami River at Troy OHHigh17.8 mi · 2,290 cfs