About this river
Farmington River is a 3.3 mile river near Collinsville Canoe & Kayak in Connecticut. Streamflow is measured at the USGS gauge Farmington River at Unionville, CT (site 01188090). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1978 to 2026
Farmington River typically runs highest in April, at a median 951 cfs, and lowest in September, at 335 cfs. The highest flow on record for any single day is 15,900 cfs, in 2007.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 568 | 385 to 874 | |
| February | 550 | 385 to 810 | |
| March | 784 | 515 to 1,170 | |
| April | 951 | 539 to 1,625 | |
| May | 564 | 402 to 939 | |
| June | 459 | 341 to 747 | |
| July | 357 | 286 to 470 | |
| August | 373 | 231 to 506 | |
| September | 335 | 180 to 476 | |
| October | 348 | 200 to 608 | |
| November | 497 | 339 to 784 | |
| December | 576 | 352 to 903 |
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 49 years of record. Statistics published by the US Geological Survey for Farmington River at Unionville, CT (site 01188090). 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 Farmington 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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