Ashuelot River at West Swanzey, NH
USGS Site No: 01160350 • Ashuelot River • Cheshire County, NH
Ashuelot River at West Swanzey, NH on the Ashuelot River is currently at 328 cfs (Normal — 52th percentile for this date) . Gage height: 6.23 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 | 131 | |
| 25th | Low threshold | 181 | |
| 50th (Median) | Normal (median) | 317 | |
| 75th | High threshold | 493 | Today: 328 cfs |
| 95th | Very High threshold | 1,660 |
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 | 399 | — |
| May 27, 2026 | 476 | — |
| May 26, 2026 | 546 | — |
| May 25, 2026 | 435 | — |
| May 24, 2026 | 354 | — |
| May 23, 2026 | 366 | — |
| May 22, 2026 | 415 | — |
| May 21, 2026 | 490 | — |
| May 20, 2026 | 586 | — |
| May 19, 2026 | 717 | — |
| May 18, 2026 | 977 | — |
| May 17, 2026 | 1,340 | — |
| May 16, 2026 | 1,530 | — |
| May 15, 2026 | 1,330 | — |
| Apr 21, 2026 | 541 | — |
| Apr 20, 2026 | 573 | — |
| Apr 19, 2026 | 513 | — |
| Apr 18, 2026 | 554 | — |
| Apr 17, 2026 | 657 | — |
| Apr 16, 2026 | 613 | — |
| Apr 15, 2026 | 590 | — |
| Apr 14, 2026 | 487 | — |
| Apr 13, 2026 | 582 | — |
| Apr 12, 2026 | 623 | — |
| Apr 11, 2026 | 600 | — |
| Apr 10, 2026 | 697 | — |
| Apr 9, 2026 | 788 | — |
| Apr 8, 2026 | 890 | — |
| Apr 7, 2026 | 984 | — |
| Apr 6, 2026 | 1,160 | — |
Station Information
- USGS Site No
- 01160350
- State
- NH
- County
- Cheshire County
- Coordinates
- 42.8715, -72.3281
- Drainage Area
- 316 mi²
- Datum (ft)
- 442.0
- HUC Code
- 01080201
Flood Stage Thresholds
- Action Stage
- 10.0 ft
- Flood Stage
- 11.0 ft
- Moderate Flood
- 12.0 ft
- Major Flood
- 14.0 ft
Currently 4.77 ft below flood stage.
Recent Extremes
- Max discharge
-
2,820 cfsMay 11, 2025
- Min discharge
-
25 cfsSep 20, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Connecticut River Near Northfield, MAVery High14.9 mi · 9,230 cfs
-
East Branch Tully River Near Athol, MAUnknown16.7 mi · 33 cfs
-
Priest Brook Near Winchendon, MANormal16.9 mi · 15 cfs
-
Millers River Near Winchendon, MANormal17.9 mi · 63 cfs
-
Millers River at Erving, MANormal19.7 mi · 351 cfs