Rivers in New Hampshire
Sugar River (NH) at West Claremont
Below flood stage
1.80ftStage
Observed Wed, Sep 30, 12:30 AM EDT
- Flood stage
- 7.00 ft
- Forecast crest
- 1.70 ftWed, Sep 30, 2:00 AM EDT
- Record crest
- 11.80 ft1936
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 11.00 ft |
| Moderate flood | 9.00 ft |
| Minor flood | 7.00 ft |
| Action | 5.00 ft |
- 12.00 ftMaria, Potvin, Mechanic, and Willard Streets are flooded in West Claremont.
- 10.00 ftTwistback Road and Beauregard Street are flooded in West Claremont.
- 7.00 ftMinor lowland flooding begins.
Flood outlook
Chance of flooding, October to December
| Category | Chance |
|---|---|
| Minor flooding | 6% |
| Moderate flooding | Under 5% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 28, 2026.
Crest history
18 crests on NOAA’s list since 1936.
| # | Date | Stage |
|---|---|---|
| 1 | March 12, 1936 | 11.80 ft |
| 2 | February 16, 1984 | 11.43 ft |
| 3 | March 27, 1992 | 10.99 ft |
| 4 | March 19, 1936 | 10.92 ft |
| 5 | September 21, 1938 | 10.49 ft |
| 6 | October 9, 2005 | 8.95 ft |
| 7 | January 9, 1978 | 8.71 ft |
| 8 | February 11, 1970 | 8.68 ft |
| 9 | April 1, 1987 | 8.51 ft |
| 10 | July 11, 2023 | 8.48 ft |
| 11 | April 17, 2007 | 8.12 ft |
| 12 | March 30, 1993 | 7.76 ft |
| 13 | May 30, 1984 | 7.70 ft |
| 14 | December 22, 1973 | 7.47 ft |
| 15 | April 3, 2005 | 7.31 ft |
| 16 | September 17, 1999 | 7.12 ft |
| 17 | April 19, 1997 | 7.02 ft |
| 18 | March 14, 1977 | 7.00 ft |
Most recent crests
- July 11, 2023: 8.48 ft
- April 17, 2007: 8.12 ft
- October 9, 2005: 8.95 ft
- April 3, 2005: 7.31 ft
- September 17, 1999: 7.12 ft
- April 19, 1997: 7.02 ft
- March 30, 1993: 7.76 ft
- March 27, 1992: 10.99 ft
- April 1, 1987: 8.51 ft
- May 30, 1984: 7.70 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the Northeast River Forecast Center. Forecasts are issued routinely year-round.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.