NEW HAMPSHIRE FLOW REPORT
Last Updated: December 15, 2025
In New Hampshire, river enthusiasts and water resource managers are observing some significant variations in streamflow across the state's waterways. Notably, the Connecticut River at North Walpole is reporting a current streamflow of 2280 cubic feet per second (cfs), which is 77.57% below the normal flow, suggesting a substantial flow drought that could affect ecosystems and water availability. Conversely, the Bearcamp River at South Tamworth showed a remarkable 103.75% increase in streamflow over the last 24 hours, with a current streamflow of 152 cfs, but still remains 20.96% below the typical flow, potentially indicating early signs of seasonal changes.
The Androscoggin River, an important watershed for both New Hampshire and Maine, is experiencing a slight increase near Gorham with a current flow of 2140 cfs, which is a 28.14% rise from the previous day, while still being 6.4% below normal. This could impact whitewater conditions and recreational use. The Pemigewasset River, popular for its whitewater trails, shows a concerning drop in streamflow at Plymouth, with a decrease of 13.99% in the last 24 hours, registering at 461 cfs and 75.52% below the normal flow, which could signal low water levels for paddling enthusiasts. Such trends are important to monitor as they can indicate ecological stress and may lead to restrictions on water usage or alter recreational activities on these rivers.
New Hampshire has a humid continental climate with cold winters and warm, humid summers. Major surface flows include the Connecticut River, which forms the western border of the state, and the Merrimack River, which flows through the central part of the state. The Pemigewasset, Saco, and Androscoggin Rivers are also significant. There are numerous reservoirs and dams in the state, including the Amoskeag Dam on the Merrimack River. Hydrology in New Hampshire is influenced by precipitation patterns, which vary widely across the state. Snowpack in the winter months is a major source of water for rivers and streams in the spring and summer. The state's many watersheds, including the Connecticut River watershed, play a critical role in determining flow conditions.
Explore Rivers
- Ammonoosuc River
- Androscoggin River
- Ashuelot River
- Baker River
- Bearcamp River
- Blackwater River
- Cocheco River
- Connecticut River
- Contoocook River
- Diamond River
- Exeter River
- Isinglass River
- Lamprey River
- Merrimack River
- North Branch River
- Oyster River
- Pemigewasset River
- Piscataquog River
- Saco River
- Smith River
- Souhegan River
- Spicket River
- Sugar River
- Suncook River
- Upper Ammonoosuc River
- Warner River
- Winnicut River
- Winnipesaukee River