Connecticut River in New Hampshire
Around here
Around Connecticut River
Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US
About this river
Connecticut River is a 43.4 mile river. Streamflow is measured at the USGS gauge Connecticut River near Dalton, NH (site 01131500). The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1927 to 2026
Connecticut River typically runs highest in April, at a median 6,055 cfs, and lowest in September, at 1,100 cfs. The highest flow on record for any single day is 46,500 cfs, in 1936.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 1,850 | 1,450 to 2,550 |
| February | 1,550 | 1,210 to 2,080 |
| March | 2,080 | 1,250 to 3,570 |
| April | 6,055 | 4,375 to 10,200 |
| May | 4,200 | 2,750 to 6,490 |
| June | 1,940 | 1,330 to 3,000 |
| July | 1,280 | 909 to 1,980 |
| August | 1,150 | 800 to 1,770 |
| September | 1,100 | 775 to 1,745 |
| October | 1,550 | 1,060 to 2,520 |
| November | 2,365 | 1,655 to 3,420 |
| December | 2,130 | 1,610 to 3,000 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 99 years of record. Statistics published by the US Geological Survey for Connecticut River near Dalton, NH (site 01131500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
8 mapped launches sit in the mapped area of Connecticut River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.
- French PondFrench PondPublic
- Franconia Notch State ParkEcho LakePublic
- Streeter PondStreeter PondPublic
- Pine IslandMoore ReservoirPublic
- Pattenville Picnic AreaMoore ReservoirPublic
- Comerford Picnic AreaConnecticut River (Comerford Reservoir)Public
- Moore Dam Visitor CenterConnecticut River (Moore Reservoir)Public
- Dodge HillConnecticut River (Moore Reservoir)Public
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Connecticut River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
See every free widget you can put on your site, including live conditions and a 7 day forecast.
