About this river
Connecticut River is an 18.4 mile river near Mahoosuc Outdoors in New Hampshire. Streamflow is measured at the USGS gauge Connecticut R below Indian Stream near Pittsburg, NH (site 01129200). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1957 to 2026
Connecticut River typically runs highest in January, at a median 735 cfs, and lowest in June, at 371 cfs. The highest flow on record for any single day is 5,610 cfs, in 2000.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 735 | 578 to 878 | |
| February | 689 | 463 to 847 | |
| March | 407 | 253 to 676 | |
| April | 545 | 343 to 919 | |
| May | 435 | 227 to 776 | |
| June | 371 | 212 to 581 | |
| July | 389 | 253 to 541 | |
| August | 410 | 296 to 559 | |
| September | 387 | 289 to 533 | |
| October | 445 | 306 to 658 | |
| November | 447 | 320 to 665 | |
| December | 698 | 458 to 861 |
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 69 years of record. Statistics published by the US Geological Survey for Connecticut R below Indian Stream near Pittsburg, NH (site 01129200). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
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.
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