WaterLevels.org
New Hampshire Station Directory

Active Monitoring Locations

Real-time hydrological observation sites grouped by region, with ongoing streamflow, stage height, and temperature metrics.

Total Gauges
68
Critical Alerts
1
Offline / Stale
12

Belknap

2 stations
ID: 01080000

Lake Winnipesaukee At Weirs Beach, NH

September 30, 2017 at 12:45:00 AM EDT

Latitude 43°36'27" N, Longitude 71°27'32" W

Gauge Height Quality
Stage Height 3.38 ft
Water Temp
Status Offline
ID: 01081000

Winnipesaukee River At Tilton, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 43°26'30" N, Longitude 71°35'15" W

Streamflow Gauge Height
Flow Rate 314 ft³/s
Stage Height 2.61 ft
Status Nominal

Carroll

5 stations
ID: 01064801

Bearcamp River At South Tamworth, NH

August 2, 2026 at 04:00:00 AM EDT

Latitude 43°49'48" N, Longitude 71°17'16" W

Streamflow Gauge Height
Flow Rate 13 ft³/s
Stage Height 3.31 ft
Status Nominal
ID: 01064400

Lucy Brook Near North Conway, NH

April 4, 1992 at 11:59:45 PM EST

Latitude 44°4'13" N, Longitude 71°10'22" W

Streamflow
Flow Rate 12 ft³/s
Status Offline
ID: 010642505

Saco River At River Street, At Bartlett, NH

August 2, 2026 at 03:45:00 AM EDT

Latitude 44°5'2" N, Longitude 71°17'8" W

Streamflow Gauge Height Quality
Flow Rate 75 ft³/s
Stage Height 2.72 ft
Status Nominal
ID: 01064500

Saco River Near Conway, NH

August 2, 2026 at 03:45:00 AM EDT

Latitude 43°59'27" N, Longitude 71°5'26" W

Streamflow Gauge Height
Flow Rate 236 ft³/s
Stage Height 2.50 ft
Status Nominal
ID: 01064485

Swift River 0.5 Mi Bl Hobbs Branch, Near Conway, NH

August 25, 2011 at 09:45:00 AM EDT

Latitude 43°59'35" N, Longitude 71°12'27" W

Streamflow Gauge Height
Flow Rate 71 ft³/s
Stage Height 5.28 ft
Status Offline

Cheshire

8 stations
ID: 01158110

Ashuelot River Above The Branch, At Keene, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 42°55'9" N, Longitude 72°16'45" W

Streamflow Gauge Height
Flow Rate 21 ft³/s
Stage Height 65.76 ft
Status Nominal
ID: 01161000

Ashuelot River At Hinsdale, NH

August 2, 2026 at 03:45:00 AM EDT

Latitude 42°47'9" N, Longitude 72°29'10" W

Streamflow Gauge Height
Flow Rate 665 ft³/s
Stage Height 4.56 ft
Status Nominal
ID: 01160350

Ashuelot River At West Swanzey, NH

August 2, 2026 at 03:45:00 AM EDT

Latitude 42°52'17" N, Longitude 72°19'41" W

Streamflow Gauge Height
Flow Rate 490 ft³/s
Stage Height 6.71 ft
Status Nominal
ID: 01158000

Ashuelot River Below Surry Mt Dam, Near Keene, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 42°59'41" N, Longitude 72°18'40" W

Streamflow Gauge Height
Flow Rate 95 ft³/s
Stage Height 5.56 ft
Status Nominal
ID: 01157000

Ashuelot River Near Gilsum, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 43°2'21" N, Longitude 72°16'12" W

Streamflow Gauge Height Quality
Flow Rate 54 ft³/s
Stage Height 2.35 ft
Status Nominal
ID: 01154950

Cold River At High Street, At Alstead, NH

August 2, 2026 at 03:45:00 AM EDT

Latitude 43°8'58" N, Longitude 72°21'42" W

Streamflow Gauge Height Quality
Flow Rate 28 ft³/s
Stage Height 1.90 ft
Status Nominal
ID: 01154500

Connecticut River At North Walpole, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 43°7'34" N, Longitude 72°26'12" W

Streamflow Gauge Height
Flow Rate 2,600 ft³/s
Stage Height 6.69 ft
Status Nominal
ID: 01160000

S Branch Ashuelot River At Webb, Near Marlborough, NH

August 12, 2011 at 12:30:00 PM EDT

Latitude 42°52'19" N, Longitude 72°12'49" W

Streamflow Gauge Height
Flow Rate 25 ft³/s
Stage Height 2.02 ft
Status Offline

Coos

9 stations
ID: 01053500

Androscoggin River At Errol, NH

August 2, 2026 at 04:00:00 AM EDT

Latitude 44°46'57" N, Longitude 71°7'43" W

Streamflow Gauge Height
Flow Rate 1,500 ft³/s
Stage Height 2.23 ft
Status Nominal
ID: 01053600

Androscoggin River Below Bog Brook At Cambridge Nh

August 2, 2026 at 04:15:00 AM EDT

Latitude 44°39'58" N, Longitude 71°10'53" W

Streamflow Gauge Height
Flow Rate 1,480 ft³/s
Stage Height 1.61 ft
Status Nominal
ID: 01054000

Androscoggin River Near Gorham, NH

August 2, 2026 at 03:15:00 AM EDT

Latitude 44°26'9" N, Longitude 71°11'25" W

Streamflow Gauge Height
Flow Rate 1,610 ft³/s
Stage Height 3.28 ft
Status Nominal
ID: 01129500

Connecticut River At North Stratford, NH

August 2, 2026 at 03:15:00 AM EDT

Latitude 44°44'59" N, Longitude 71°37'52" W

Streamflow Gauge Height Quality
Flow Rate 514 ft³/s
Stage Height 3.29 ft
Status Nominal
ID: 01129200

Connecticut River Below Indian Stream Near Pittsburg, NH

August 2, 2026 at 03:15:00 AM EDT

Latitude 45°2'25" N, Longitude 71°26'38" W

Streamflow Gauge Height Quality
Flow Rate 311 ft³/s
Stage Height 2.71 ft
Status Nominal
ID: 01131500

Connecticut River Near Dalton, NH

August 2, 2026 at 03:15:00 AM EDT

Latitude 44°24'36" N, Longitude 71°43'14" W

Streamflow Gauge Height
Flow Rate 604 ft³/s
Stage Height 7.24 ft
Status Nominal
ID: 01052500

Diamond River Near Wentworth Location, NH

August 2, 2026 at 03:15:00 AM EDT

Latitude 44°52'39" N, Longitude 71°3'27" W

Streamflow Gauge Height
Flow Rate 30 ft³/s
Stage Height 1.76 ft
Status Nominal
ID: 01054114

Peabody River At Gorham, New Hampshire

August 2, 2026 at 04:00:00 AM EDT

Latitude 44°22'53" N, Longitude 71°10'14" W

Streamflow Gauge Height
Flow Rate 25 ft³/s
Stage Height 1.94 ft
Status Nominal
ID: 01130000

Upper Ammonoosuc River Near Groveton, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 44°37'30" N, Longitude 71°28'8" W

Streamflow Gauge Height
Flow Rate 109 ft³/s
Stage Height 1.92 ft
Status Nominal

Grafton

9 stations
ID: 01137500

Ammonoosuc River At Bethlehem Junction, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 44°16'7" N, Longitude 71°37'49" W

Streamflow Gauge Height
Flow Rate 58 ft³/s
Stage Height 1.35 ft
Status Nominal
ID: 01137940

Ammonoosuc River Below Lisbon Dam, At Lisbon, NH

July 6, 2011 at 01:30:00 PM EDT

Latitude 44°12'45" N, Longitude 71°54'51" W

Streamflow Gauge Height
Flow Rate 155 ft³/s
Stage Height 3.04 ft
Status Offline
ID: 01076000

Baker River Near Rumney, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 43°47'44" N, Longitude 71°50'43" W

Streamflow Gauge Height
Flow Rate 23 ft³/s
Stage Height 0.25 ft
Status Nominal
ID: 01077400

Cockermouth River Below Hardy Brook, At Groton, NH

August 2, 2026 at 04:00:00 AM EDT

Latitude 43°42'14" N, Longitude 71°50'0" W

Streamflow Gauge Height
Flow Rate 3 ft³/s
Stage Height 1.16 ft
Status Nominal
ID: 01144500

Connecticut River At West Lebanon, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 43°38'46" N, Longitude 72°18'44" W

Streamflow Gauge Height
Flow Rate 1,730 ft³/s
Stage Height 4.55 ft
Status Nominal
ID: 01074520

East Branch Pemigewasset River At Lincoln, NH

August 2, 2026 at 03:15:00 AM EDT

Latitude 44°2'51" N, Longitude 71°39'35" W

Streamflow Gauge Height
Flow Rate 62 ft³/s
Stage Height 2.92 ft
Status Nominal
ID: 01141800

Mink Brook Near Etna, NH

September 30, 1998 at 11:45:00 PM EDT

Latitude 43°42'8" N, Longitude 72°11'13" W

Streamflow
Flow Rate 1 ft³/s
Status Offline
ID: 01076500

Pemigewasset River At Plymouth, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 43°45'33" N, Longitude 71°41'8" W

Streamflow Gauge Height
Flow Rate 208 ft³/s
Stage Height 0.64 ft
Status Nominal
ID: 01075000

Pemigewasset River At Woodstock, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 43°58'34" N, Longitude 71°40'46" W

Streamflow Gauge Height
Flow Rate 95 ft³/s
Stage Height 2.27 ft
Status Nominal

Hillsborough

12 stations
ID: 01082000

Contoocook River At Peterborough, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 42°51'45" N, Longitude 71°57'33" W

Streamflow Gauge Height
Flow Rate 152 ft³/s
Stage Height 2.16 ft
Status Action
ID: 01096508

Merrimack River At Nashua, NH

August 2, 2026 at 03:15:00 AM EDT

Latitude 42°45'48" N, Longitude 71°26'34" W

Gauge Height
Stage Height 4.78 ft
Status Nominal
ID: 01092000

Merrimack River Near Goffs Falls, Below Manchester, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 42°56'53" N, Longitude 71°27'48" W

Streamflow Gauge Height
Flow Rate 2,180 ft³/s
Stage Height 3.79 ft
Status Nominal
ID: 01084000

North Branch River Near Antrim, NH

July 5, 2011 at 11:45:00 PM EDT

Latitude 43°4'54" N, Longitude 71°58'42" W

Streamflow Gauge Height
Flow Rate 61 ft³/s
Stage Height 2.36 ft
Status Offline
ID: 01083000

Nubanusit Bk Below Macdowell Dam Near Peterborough Nh

August 2, 2026 at 03:30:00 AM EDT

Latitude 42°53'34" N, Longitude 71°59'12" W

Gauge Height
Stage Height 3.92 ft
Status Nominal
ID: 01090800

Piscataquog River Bl Everett Dam, Near E Weare, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 43°5'29" N, Longitude 71°39'34" W

Streamflow Gauge Height
Flow Rate 33 ft³/s
Stage Height 5.07 ft
Status Nominal
ID: 01091500

Piscataquog River Near Goffstown, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 43°1'0" N, Longitude 71°33'2" W

Streamflow Gauge Height
Flow Rate 35 ft³/s
Stage Height 3.25 ft
Status Nominal
ID: 01091003

S Branch Piscataquog River At River Rd, Near Goffstown, NH

March 28, 2019 at 08:00:00 AM EDT

Latitude 43°0'59" N, Longitude 71°37'36" W

Gauge Height
Stage Height 300.59 ft
Status Offline
ID: 01094000

Souhegan River At Merrimack, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 42°51'27" N, Longitude 71°30'22" W

Streamflow Gauge Height
Flow Rate 288 ft³/s
Stage Height 3.32 ft
Status Nominal
ID: 01093852

Souhegan River (Site Wlr 1) Near Milford, NH

August 2, 2026 at 03:45:00 AM EDT

Latitude 42°50'33" N, Longitude 71°42'24" W

Streamflow Gauge Height Quality
Flow Rate 218 ft³/s
Stage Height 4.36 ft
Status Nominal
ID: 01091000

South Branch Piscataquog River Near Goffstown, NH

August 2, 2026 at 03:45:00 AM EDT

Latitude 43°0'53" N, Longitude 71°38'29" W

Streamflow Gauge Height Quality
Flow Rate 51 ft³/s
Stage Height 3.47 ft
Status Nominal
ID: 01093800

Stony Brook Tributary Near Temple, NH

September 30, 2004 at 11:45:00 PM EDT

Latitude 42°51'36" N, Longitude 71°49'58" W

Streamflow
Flow Rate 6 ft³/s
Status Offline

Merrimack

8 stations
ID: 01087000

Blackwater River Near Webster, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 43°17'49" N, Longitude 71°41'40" W

Streamflow Gauge Height
Flow Rate 56 ft³/s
Stage Height 2.44 ft
Status Nominal
ID: 01085500

Contoocook River Bl Hopkinton Dam At W Hopkinton, NH

August 2, 2026 at 04:00:00 AM EDT

Latitude 43°11'34" N, Longitude 71°44'50" W

Streamflow Gauge Height
Flow Rate 1,230 ft³/s
Stage Height 3.49 ft
Status Nominal
ID: 01085000

Contoocook River Near Henniker, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 43°9'7" N, Longitude 71°51'26" W

Streamflow Gauge Height
Flow Rate 961 ft³/s
Stage Height 7.40 ft
Status Nominal
ID: 01081500

Merrimack River At Franklin Junction, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 43°25'22" N, Longitude 71°39'10" W

Streamflow Gauge Height
Flow Rate 712 ft³/s
Stage Height 3.99 ft
Status Nominal
ID: 01078000

Smith River Near Bristol, NH

August 2, 2026 at 03:45:00 AM EDT

Latitude 43°33'59" N, Longitude 71°44'52" W

Streamflow Gauge Height Quality
Flow Rate 20 ft³/s
Stage Height 1.65 ft
Status Nominal
ID: 01089925

Suncook River At Nh 28, Near Suncook, NH

November 15, 2025 at 11:45:00 PM EST

Latitude 43°9'35" N, Longitude 71°24'23" W

Streamflow Gauge Height
Flow Rate 161 ft³/s
Stage Height 285.54 ft
Status Offline
ID: 01089500

Suncook River At North Chichester, NH

August 2, 2026 at 04:15:00 AM EDT

Latitude 43°15'24" N, Longitude 71°22'10" W

Streamflow Gauge Height
Flow Rate 13 ft³/s
Stage Height 2.60 ft
Status Nominal
ID: 01086000

Warner River At Davisville, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 43°15'3" N, Longitude 71°43'56" W

Streamflow Gauge Height
Flow Rate 37 ft³/s
Stage Height 3.42 ft
Status Nominal

Rockingham

8 stations
ID: 010965852

Beaver Brook At North Pelham, NH

August 2, 2026 at 03:15:00 AM EDT

Latitude 42°46'58" N, Longitude 71°21'13" W

Streamflow Gauge Height
Flow Rate 8 ft³/s
Stage Height 5.69 ft
Status Nominal
ID: 01073587

Exeter River At Haigh Road, Near Brentwood, NH

August 2, 2026 at 03:15:00 AM EDT

Latitude 42°59'4" N, Longitude 71°2'18" W

Streamflow Gauge Height
Flow Rate 23 ft³/s
Stage Height 4.37 ft
Status Nominal
ID: 010735562

Exeter River At Odell Road, Near Sandown, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 42°56'56" N, Longitude 71°9'53" W

Streamflow Gauge Height
Flow Rate 2 ft³/s
Stage Height 0.50 ft
Status Nominal
ID: 01073319

Lamprey River At Langford Road, At Raymond, NH

August 2, 2026 at 03:45:00 AM EDT

Latitude 43°2'29" N, Longitude 71°12'6" W

Streamflow Gauge Height Quality
Flow Rate 18 ft³/s
Stage Height 2.05 ft
Status Nominal
ID: 01073389

Pawtuckaway Lake Near Nottingham, NH

September 26, 2017 at 09:15:00 AM EDT

Latitude 43°5'4" N, Longitude 71°9'22" W

Gauge Height Quality
Stage Height 1.20 ft
Water Temp
Status Offline
ID: 01100505

Spicket River At North Salem, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 42°50'57" N, Longitude 71°12'54" W

Streamflow Gauge Height
Flow Rate 1 ft³/s
Stage Height 2.07 ft
Status Nominal
ID: 01100561

Spicket River Near Methuen, MA

August 2, 2026 at 03:15:00 AM EDT

Latitude 42°44'35" N, Longitude 71°12'30" W

Streamflow Gauge Height
Flow Rate 17 ft³/s
Stage Height 3.61 ft
Status Nominal
ID: 01073785

Winnicut River At Greenland, Near Portsmouth, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 43°2'9" N, Longitude 70°50'51" W

Streamflow Gauge Height
Flow Rate 10 ft³/s
Stage Height 4.33 ft
Status Nominal

Strafford

5 stations
ID: 01072880

Cocheco River, At Spaulding Turnpike, At Dover, NH

June 30, 1996 at 11:45:00 PM EDT

Latitude 43°12'21" N, Longitude 70°53'45" W

Streamflow
Flow Rate 86 ft³/s
Status Offline
ID: 01072800

Cocheco River Near Rochester, NH

August 2, 2026 at 04:00:00 AM EDT

Latitude 43°16'6" N, Longitude 70°58'25" W

Streamflow Gauge Height
Flow Rate 9 ft³/s
Stage Height 2.55 ft
Status Nominal
ID: 01072870

Isinglass River At Rochester Neck Rd, Near Dover, NH

August 2, 2026 at 03:15:00 AM EDT

Latitude 43°14'5" N, Longitude 70°57'23" W

Streamflow Gauge Height Quality
Flow Rate 5 ft³/s
Stage Height 2.70 ft
Status Nominal
ID: 01073500

Lamprey River Near Newmarket, NH

August 2, 2026 at 03:15:00 AM EDT

Latitude 43°6'9" N, Longitude 70°57'9" W

Streamflow Gauge Height
Flow Rate 73 ft³/s
Stage Height 1.43 ft
Status Nominal
ID: 01073000

Oyster River Near Durham, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 43°8'55" N, Longitude 70°57'54" W

Streamflow Gauge Height
Flow Rate 1 ft³/s
Stage Height 0.65 ft
Status Nominal

Sullivan

2 stations
ID: 01152010

Sugar River 0.2 Mi Below Nh 11, At Sunapee, NH

August 2, 2026 at 04:00:00 AM EDT

Latitude 43°23'11" N, Longitude 72°5'28" W

Streamflow Gauge Height
Flow Rate 19 ft³/s
Stage Height 4.28 ft
Status Nominal
ID: 01152500

Sugar River At West Claremont, NH

August 2, 2026 at 03:30:00 AM EDT

Latitude 43°23'15" N, Longitude 72°21'43" W

Streamflow Gauge Height
Flow Rate 116 ft³/s
Stage Height 1.36 ft
Status Nominal