Upper Iowa River at Bluffton, IA
USGS Site No: 05387440 • Upper Iowa River • Winneshiek County, IA
Upper Iowa River at Bluffton, IA on the Upper Iowa River is currently at 280 cfs (Normal — 25th percentile for this date) . Gage height: 3.59 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for June 11 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 | 220 | |
| 25th | Low threshold | 279 | |
| 50th (Median) | Normal (median) | 453 | Today: 280 cfs |
| 75th | High threshold | 694 | |
| 95th | Very High threshold | 5,410 |
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 | 261 | — |
| May 27, 2026 | 277 | — |
| May 26, 2026 | 283 | — |
| May 25, 2026 | 297 | — |
| May 24, 2026 | 314 | — |
| May 23, 2026 | 328 | — |
| May 22, 2026 | 329 | — |
| May 21, 2026 | 343 | — |
| May 20, 2026 | 348 | — |
| May 19, 2026 | 293 | — |
| May 18, 2026 | 276 | — |
| May 17, 2026 | 256 | — |
| May 16, 2026 | 260 | — |
| May 15, 2026 | 251 | — |
| Apr 20, 2026 | 715 | — |
| Apr 19, 2026 | 803 | — |
| Apr 18, 2026 | 871 | — |
| Apr 17, 2026 | 963 | — |
| Apr 16, 2026 | 1,060 | — |
| Apr 15, 2026 | 937 | — |
| Apr 14, 2026 | 696 | — |
| Apr 13, 2026 | 672 | — |
| Apr 12, 2026 | 697 | — |
| Apr 11, 2026 | 739 | — |
| Apr 10, 2026 | 842 | — |
| Apr 9, 2026 | 972 | — |
| Apr 8, 2026 | 1,130 | — |
| Apr 7, 2026 | 1,360 | — |
| Apr 6, 2026 | 1,790 | — |
| Apr 5, 2026 | 2,120 | — |
Station Information
- USGS Site No
- 05387440
- State
- IA
- County
- Winneshiek County
- Coordinates
- 43.4069, -91.8990
- Drainage Area
- 367 mi²
- Datum (ft)
- 944.7
- HUC Code
- 07060002
Flood Stage Thresholds
- Action Stage
- 10.0 ft
- Flood Stage
- 12.0 ft
- Moderate Flood
- 13.0 ft
- Major Flood
- 15.0 ft
Currently 8.41 ft below flood stage.
Recent Extremes
- Max discharge
-
6,170 cfsAug 19, 2025
- Min discharge
-
79 cfsDec 5, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Upper Iowa River at Decorah, IANormal8.8 mi · 363 cfs
-
Turkey River at Spillville, IANormal14.0 mi · 107 cfs
-
Upper Iowa River Near Dorchester, IANormal19.6 mi · 613 cfs
-
Turkey River Near Eldorado, IALow24.8 mi · 383 cfs
-
Root River Near Pilot Mound, MNNormal26.8 mi · 427 cfs