Upper Iowa River Near Dorchester, IA
USGS Site No: 05388250 • Upper Iowa River • Allamakee County, IA
Upper Iowa River Near Dorchester, IA on the Upper Iowa River is currently at 613 cfs (High — 76th percentile for this date) . Gage height: 7.46 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 28 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 | 157 | |
| 25th | Low threshold | 220 | |
| 50th (Median) | Normal (median) | 307 | |
| 75th | High threshold | 550 | |
| 95th | Very High threshold | 1,400 | Today: 613 cfs |
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 | 643 | — |
| May 27, 2026 | 664 | — |
| May 26, 2026 | 679 | — |
| May 25, 2026 | 698 | — |
| May 24, 2026 | 722 | — |
| May 23, 2026 | 744 | — |
| May 22, 2026 | 767 | — |
| May 19, 2026 | 728 | — |
| May 18, 2026 | 716 | — |
| May 17, 2026 | 658 | — |
| May 16, 2026 | 655 | — |
| May 15, 2026 | 605 | — |
| Apr 20, 2026 | 1,320 | — |
| Apr 19, 2026 | 1,450 | — |
| Apr 18, 2026 | 1,600 | — |
| Apr 17, 2026 | 1,710 | — |
| Apr 16, 2026 | 1,700 | — |
| Apr 15, 2026 | 1,440 | — |
| Apr 14, 2026 | 1,380 | — |
| Apr 13, 2026 | 1,350 | — |
| Apr 12, 2026 | 1,430 | — |
| Apr 11, 2026 | 1,490 | — |
| Apr 10, 2026 | 1,680 | — |
| Apr 9, 2026 | 1,920 | — |
| Apr 8, 2026 | 2,220 | — |
| Apr 7, 2026 | 2,620 | — |
| Apr 6, 2026 | 3,230 | — |
| Apr 5, 2026 | 3,660 | — |
| Apr 4, 2026 | 4,170 | — |
| Apr 3, 2026 | 1,120 | — |
Station Information
- USGS Site No
- 05388250
- State
- IA
- County
- Allamakee County
- Coordinates
- 43.4211, -91.5088
- Drainage Area
- 770 mi²
- Datum (ft)
- 659.8
- HUC Code
- 07060002
Flood Stage Thresholds
- Action Stage
- 11.0 ft
- Flood Stage
- 14.0 ft
- Moderate Flood
- 17.0 ft
- Major Flood
- 19.0 ft
Currently 6.54 ft below flood stage.
Recent Extremes
- Max discharge
-
10,800 cfsAug 18, 2025
- Min discharge
-
104 cfsDec 14, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Upper Iowa River at Decorah, IAHigh16.5 mi · 363 cfs
-
Upper Iowa River at Bluffton, IANormal19.6 mi · 280 cfs
-
South Fork Root River Near Houston, MNNormal22.1 mi · 163 cfs
-
Root River Near Houston, MNHigh24.2 mi · 855 cfs
-
Yellow River Near Ion, IAHigh24.6 mi · 193 cfs