Connecticut River at North Walpole, NH
USGS Site No: 01154500 • Connecticut River • Cheshire County, NH
Connecticut River at North Walpole, NH on the Connecticut River is currently at 11,400 cfs (High — 78th percentile for this date) . Gage height: 10.68 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 | 2,960 | |
| 25th | Low threshold | 4,910 | |
| 50th (Median) | Normal (median) | 7,160 | |
| 75th | High threshold | 10,100 | |
| 95th | Very High threshold | 18,000 | Today: 11,400 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 | 11,100 | — |
| May 27, 2026 | 14,100 | — |
| May 26, 2026 | 15,900 | — |
| May 25, 2026 | 11,000 | — |
| May 24, 2026 | 7,950 | — |
| May 23, 2026 | 7,620 | — |
| May 22, 2026 | 7,550 | — |
| May 21, 2026 | 10,800 | — |
| May 20, 2026 | 11,900 | — |
| May 19, 2026 | 14,100 | — |
| May 18, 2026 | 20,300 | — |
| May 17, 2026 | 28,100 | — |
| May 16, 2026 | 34,800 | — |
| May 15, 2026 | 30,700 | — |
| Apr 21, 2026 | 26,900 | — |
| Apr 20, 2026 | 29,800 | — |
| Apr 19, 2026 | 26,300 | — |
| Apr 18, 2026 | 30,400 | — |
| Apr 17, 2026 | 26,700 | — |
| Apr 16, 2026 | 22,800 | — |
| Apr 15, 2026 | 23,100 | — |
| Apr 14, 2026 | 18,300 | — |
| Apr 13, 2026 | 18,900 | — |
| Apr 12, 2026 | 18,800 | — |
| Apr 11, 2026 | 19,300 | — |
| Apr 10, 2026 | 18,300 | — |
| Apr 9, 2026 | 18,200 | — |
| Apr 8, 2026 | 18,600 | — |
| Apr 7, 2026 | 20,000 | — |
| Apr 6, 2026 | 21,700 | — |
Station Information
- USGS Site No
- 01154500
- State
- NH
- County
- Cheshire County
- Coordinates
- 43.1262, -72.4368
- Drainage Area
- 5,493 mi²
- Datum (ft)
- 217.5
- HUC Code
- 01080104
Flood Stage Thresholds
- Action Stage
- 26.0 ft
- Flood Stage
- 28.0 ft
- Moderate Flood
- 32.0 ft
- Major Flood
- 35.0 ft
Currently 17.32 ft below flood stage.
Recent Extremes
- Max discharge
-
48,600 cfsMay 10, 2025
- Min discharge
-
1,240 cfsOct 7, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Sugar River at West Claremont, NHNormal18.4 mi · 342 cfs
-
Sugar River 0.2 MI Below NH 11, at Sunapee, NHVery High25.0 mi · 128 cfs
-
Nubanusit Bk below Macdowell Dam near Peterborough NHUnknown27.9 mi · 0 cfs
-
Contoocook River Near Henniker, NHNormal29.3 mi · 426 cfs
-
Contoocook River at Peterborough, NHNormal30.2 mi · 66 cfs