NEW HAMPSHIRE FLOW REPORT

Last Updated: December 31, 2025

New Hampshire's streamflow report indicates varied conditions across the state's rivers, with several noteworthy trends affecting recreational activities and water resources. Streamflow measurements reveal significant departures from normal levels, with the Pemigewasset River at Plymouth showing a notably high flow at 4800 cubic feet per second (cfs), 71.33% above normal, potentially impacting the surrounding watershed and communities like Plymouth. Conversely, the Winnipesaukee River at Tilton is experiencing a severe low at 205 cfs, which is 82.6% below its average, suggesting a flow drought that could affect local ecosystems. The Connecticut River at North Stratford stands out with a streamflow of 4920 cfs, which is 102.58% above normal, indicating the potential for flooding and impacting whitewater conditions.

The Androscoggin River reveals contrasting situations; near Gorham, the flow is 1940 cfs, down by 36.52%, while at Errol a low flow of 1220 cfs is observed, 47.03% below normal, reflecting variable conditions that could influence river use in these areas. Whitewater enthusiasts should be cautious as gage heights, such as the 8.91 feet at the Connecticut River near Dalton, could suggest challenging conditions. Meanwhile, cities like Rochester might see the effects of increased streamflow in the Cocheco River, which is at 359 cfs, 44.73% above normal. The Ashuelot River near Gilsum, a popular recreational river, is experiencing an unusual spike in streamflow at 425 cfs, 91.32% above the norm, which could enhance whitewater trails but also raise safety concerns. These data points suggest a need for vigilance among river users and water managers alike, as fluctuations in streamflow could have implications for safety, water supply, and environmental health throughout the state.