New Hampshire River Flow Rates & Stream Gauge Data

Live USGS stream gauge data for New Hampshire — current CFS flow rates, gauge heights, water temperatures, and wading conditions for New Hampshire rivers and streams. Updated every 15 minutes. Know before you go.

Browse USGS monitoring stations across New Hampshire rivers and streams. Each gauge page shows 7, 14, and 30-day flow rate charts with wading condition indicators — so you know whether the water is high, dropping, or fishable before you drive to the river.