Connecticut River Flow Rates & Stream Gauge Data
Live USGS stream gauge data for Connecticut — current CFS flow rates, gauge heights, water temperatures, and wading conditions for Connecticut rivers and streams. Updated every 15 minutes. Know before you go.
Planning with Connecticut river conditions
Browse USGS monitoring stations across Connecticut rivers and streams. Each gauge page
shows current readings plus 7, 14, and 30-day flow-rate charts with condition indicators.
Compare the station name and location with your intended reach, then use the recent trend
alongside the current reading. Rain, snowmelt, dams, tributaries, and the distance between
stations can produce different conditions on the same river.
Plan seasonal fly selection with the Connecticut hatch chart .
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Browse all monitoring stations Aspetuck River At Aspetuck, Ct — USGS 01209105 Bride Brook Nr East Lyme, Ct — USGS 0112779610 Broad Brook At Broad Brook, Ct — USGS 01184490 Bunnell Brook Near Burlington, Ct — USGS 01188000 Byram River At Pemberwick, Ct — USGS 01212500 Coginchaug River At Middlefield, Ct — USGS 01192883 Connecticut River At Hartford, Ct — USGS 01190070 Connecticut River At Middle Haddam, Ct — USGS 01193050 Connecticut River At Thompsonville, Ct — USGS 01184000 East Branch Eightmile River Near North Lyme, Ct — USGS 01194500 Eightmile River At North Plain, Ct — USGS 01194000 Farm River At Totoket Road At Totoket, Ct — USGS 01195399 Farmington R At Rainbow, Ct. — USGS 01190000 Farmington River At Tariffville, Ct — USGS 01189995 Farmington River At Unionville, Ct — USGS 01188090 Fenton River At Mansfield, Ct — USGS 01121330 Fivemile River Near New Canaan, Ct — USGS 01209761 French River At North Grosvenordale, Ct — USGS 01125100 Hockanum River Near East Hartford, Ct — USGS 01192500 Honeypot Brook At Creamery Road At Cheshire, Ct — USGS 01196210 Hop Brook Near Naugatuck, Ct — USGS 01208420 Housatonic River At Falls Village, Ct — USGS 01199000 Housatonic River At Gaylordsville, Ct — USGS 01200500 Housatonic River At Stevenson, Ct — USGS 01205500 Housatonic River Near New Milford, Ct — USGS 01200600 Hubbard River Near West Hartland, Ct — USGS 01187300 Indian River Near Clinton, Ct — USGS 01195100 Little River At Harrisville, Ct — USGS 01125490 Little River Near Hanover, Ct — USGS 01123000 Mattabesset River At Route 372 At East Berlin — USGS 01192704 Mill River Near Fairfield, Ct — USGS 01208925 Mill River Near Hamden, Ct — USGS 01196620 Mount Hope River Near Warrenville, Ct — USGS 01121000 Muddy River Near East Wallingford, Ct — USGS 01196561 Natchaug River At Marcy Rd. Near Chaplin, Ct — USGS 01120790 Natchaug River At Willimantic, Ct — USGS 01122000 Naugatuck River At Beacon Falls, Ct — USGS 01208500 Naugatuck River At Thomaston, Ct — USGS 01206900 Naugatuck River At Waterbury, Ct — USGS 01208171 Nepaug R Nr Nepaug, Ct. — USGS 01187800 Nonewaug River At Minortown, Ct — USGS 01203600 North Branch Park River At Hartford, Ct — USGS 01191000 Norwalk River At South Wilton, Ct — USGS 01209700 Pendleton Hill Brook Near Clarks Falls, Ct — USGS 01118300 Pomperaug River At Southbury, Ct — USGS 01204000 Pootatuck River At Berkshire — USGS 012035055 Pootatuck River At Sandy Hook, Ct — USGS 01203510 Poquonnock River At Long Hill, Ct — USGS 01119001 Quinebaug River At Jewett City, Ct — USGS 01127000 Quinebaug River At Putnam, Ct — USGS 01125500 Quinebaug River At Quinebaug, Ct — USGS 01124000 Quinebaug River At West Thompson, Ct — USGS 01124151 Quinnipiac River At Southington, Ct — USGS 01195490 Quinnipiac River At Wallingford, Ct — USGS 01196500 Ridgefield Brook At Shields Lane Nr Ridgefield, Ct — USGS 012095493 Rippowam River At Stamford, Ct. — USGS 01209901 Rooster River At Fairfield, Ct — USGS 01208873 Salmon Creek At Lime Rock, Ct — USGS 01199050 Salmon River Near East Hampton, Ct — USGS 01193500 Sasco Brook Near Southport, Ct — USGS 01208950 Saugatuck R Below Saugatuck Res Nr Lyons Plain, Ct — USGS 01209005 Saugatuck River Near Redding, Ct — USGS 01208990 Saugatuck River Near Westport, Ct — USGS 01209500 Shepaug R Nr Roxbury, Ct — USGS 01203000 Shepaug River At Peters Dam At Woodville, Ct — USGS 01202501 Shetucket River At Taftville, Ct — USGS 011230695 Shetucket River Near Willimantic, Ct — USGS 01122500 Still River At Robertsville, Ct — USGS 01186500 Still River At Route 7 At Brookfield Center, Ct — USGS 01201487 Stony Brook Near West Suffield, Ct — USGS 01184100 Weekeepeemee River At Hotchkissville, Ct — USGS 01203805 West Branch Farmington River At Riverton, Ct — USGS 01186000 Willimantic River At Merrow Rd. Near Merrow, Ct — USGS 01119382 Willimantic River Near Coventry, Ct — USGS 01119500 Yantic River At Yantic, Ct — USGS 01127500