New Hampshire river levels

66 active gauges · data refreshed 2 min ago

33 gauges with a water-level reading and an official flood stage; 0 at action level below flood stage. 9 gauges without a usable water-level reading; 24 with a reading but no published minor flood stage.

This summary uses the latest available readings, which may be delayed. Check each gauge’s observation time below. Below-stage readings do not rule out flooding elsewhere, including streets and unmonitored waterways.

Rivers: Connecticut River · Ashuelot River · Androscoggin River · Merrimack River · Contoocook River · Saco River · Cocheco River · Lamprey River · Exeter River · Pemigewasset River · Suncook River · Piscataquog River · Spicket River · Ammonoosuc River

Towns: Goffstown · Dover · Keene · Conway · Peterborough

GaugeStatusStageFlowUpdated
Ammonoosuc River at Bethlehem Junction, NHNo flooding1.17 ft42 cfs
Androscoggin River near Gorham, NHNo flooding2.83 ft1,160 cfs
Ashuelot River above the Branch, at Keene, NHNo flooding64.72 ft—
Ashuelot River at Hinsdale, NHNo flooding3.24 ft154 cfs
Ashuelot River at West Swanzey, NHNo flooding5.32 ft97 cfs
Ashuelot River near Gilsum, NHNo flooding1.80 ft20 cfs
Baker River near Rumney, NHNo flooding0.28 ft26 cfs
Cockermouth River below Hardy Brook, at Groton, NHNo flooding1.22 ft3 cfs
Cold River at High Street, at Alstead, NHNo flooding1.57 ft11 cfs
Connecticut River at North Stratford, NHNo flooding2.97 ft329 cfs
Connecticut River at North Walpole, NHNo flooding5.99 ft1,590 cfs
Connecticut River at West Lebanon, NHNo flooding3.89 ft973 cfs
Connecticut River near Dalton, NHNo flooding7.00 ft466 cfs
Contoocook River at Peterborough, NHNo flooding1.39 ft32 cfs
Contoocook River near Henniker, NHNo flooding5.59 ft189 cfs
Lamprey River near Newmarket, NHNo flooding0.82 ft17 cfs
Merrimack River near Goffs Falls, below Manchester, NHNo flooding3.16 ft1,270 cfs
Merrimack River at Franklin Junction, NHNo flooding4.37 ft981 cfs
Merrimack River at Nashua, NHNo flooding4.64 ft—
Pemigewasset River at Plymouth, NHNo flooding0.56 ft191 cfs
Pemigewasset River at Woodstock, NHNo flooding2.18 ft77 cfs
Piscataquog River near Goffstown, NHNo flooding3.01 ft14 cfs
Saco River at River Street, at Bartlett, NHNo flooding2.54 ft33 cfs
Saco River near Conway, NHNo flooding2.23 ft152 cfs
Smith River near Bristol, NHNo flooding1.74 ft24 cfs
Souhegan River (Site Wlr-1) near Milford, NHNo flooding3.28 ft36 cfs
Souhegan River at Merrimack, NHNo flooding2.51 ft65 cfs
Spicket River near Methuen, MANo flooding3.65 ft24 cfs
Sugar River at West Claremont, NHNo flooding1.16 ft73 cfs
Suncook River at North Chichester, NHNo flooding3.11 ft62 cfs
Upper Ammonoosuc River near Groveton, NHNo flooding1.76 ft53 cfs
Warner River at Davisville, NHNo flooding3.39 ft33 cfs
Winnipesaukee River at Tilton, NHNo flooding2.45 ft263 cfs
Ammonoosuc River below Lisbon Dam, at Lisbon, NHNo current data———
Cocheco River, at Spaulding Turnpike, at Dover, NHNo current data———
Lucy Brook near North Conway, NHNo current data———
Mink Brook near Etna, NHNo current data———
North Branch River near Antrim, NHNo current data———
S Br Ashuelot River at Webb, near Marlborough, NHNo current data———
S Br Piscataquog River at River Rd, near Goffstown, NHNo current data———
Stony Brook Tributary near Temple, NHNo current data———
Suncook River at Nh 28, near Suncook, NHNo current data———
Androscoggin River at Errol, NHNo flood stage defined1.79 ft1,050 cfs
Androscoggin River below Bog Brook at Cambridge NHNo flood stage defined1.21 ft1,050 cfs
Ashuelot River below Surry Mt Dam, near Keene, NHNo flood stage defined4.92 ft29 cfs
Bearcamp River at South Tamworth, NHNo flood stage defined3.30 ft12 cfs
Beaver Brook at North Pelham, NHNo flood stage defined5.58 ft4 cfs
Blackwater River near Webster, NHNo flood stage defined2.26 ft39 cfs
Cocheco River near Rochester, NHNo flood stage defined2.50 ft8 cfs
Connecticut River below Indian Stream near Pittsburg, NHNo flood stage defined2.55 ft248 cfs
Contoocook River below Hopkinton Dam at W Hopkinton, NHNo flood stage defined1.81 ft182 cfs
Diamond River near Wentworth Location, NHNo flood stage defined1.68 ft24 cfs
East Branch Pemigewasset River at Lincoln, NHNo flood stage defined3.50 ft49 cfs
Exeter River at Haigh Road, near Brentwood, NHNo flood stage defined4.15 ft11 cfs
Exeter River at Odell Road, near Sandown, NHNo flood stage defined0.30 ft0 cfs
Isinglass River at Rochester Neck Rd, near Dover, NHNo flood stage defined3.08 ft12 cfs
Lamprey River at Langford Road, at Raymond, NHNo flood stage defined1.75 ft5 cfs
Nubanusit Brook below Macdowell Dam near Peterborough NHNo flood stage defined2.48 ft—
Oyster River near Durham, NHNo flood stage defined0.63 ft1 cfs
Peabody River at Gorham, New HampshireNo flood stage defined1.95 ft26 cfs
Piscataquog River below Everett Dam, near E Weare, NHNo flood stage defined4.45 ft3 cfs
South Branch Piscataquog River near Goffstown, NHNo flood stage defined3.10 ft16 cfs
Spicket River at North Salem, NHNo flood stage defined2.00 ft0 cfs
Sugar River 0.2 Mi below Nh 11, at Sunapee, NHNo flood stage defined4.18 ft15 cfs
Swift River 0.5 Mi below Hobbs Br, near Conway, NHNo flood stage defined3.89 ft38 cfs
Winnicut River at Greenland, near Portsmouth, NHNo flood stage defined4.84 ft22 cfs
Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.