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Flash Flood — Grafton, NH

Jun 25, 2023

On the evening of June 25, moderate to heavy rain occurred with rainfall rates briefly reaching up to 4��� per hour. Numerous storms repeatedly traveled over the same area of Southern Grafton County through midnight before the rain ended shortly after. After a short break in the rain activity from midnight through the morning of June 26, showers and thunderstorms began to redevelop across southern New Hampshire by midday. Rounds of heavy showers and thunderstorms moved through Hillsborough

Source: NOAA National Weather Service Storm Events Database (event 1108944). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Grafton, NH

This event is one of many recorded floods in Grafton County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.

View Grafton County flood data →

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