Heavy Rain in New Hampshire
Every heavy rain event the National Weather Service has filed in New Hampshire, year by year, with the most significant episodes. Rainfall totals unusual for the place and season that did not produce a flood.
The most significant on the map
The most significant heavy rain episodes in New Hampshire.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The record
- Events
- 31
- Deaths
- 0
- Injuries
- 0
- Damage
- $44,000
Every year
The most significant
Ranked by deaths, injuries, damage and size together.
- Debris Flow and Flooding in New Hampshire, October 29 to 30, 2012On Monday, October 29th, Hurricane Sandy (and its remnants) tracked northwest from well off the North Carolina coast to southeastern Pennsylvania, making landfall near the southern tip of New Jersey.
- Heavy Rain in New Hampshire, September 10, 1999Heavy rains developed over all of New Hampshire as a southeast flow of tropical moisture developed ahead of an approaching cold front. Rainfall amounts generally ranged from 1 to 2 inches in the northern part of the state to 2 to 4 inches in the southern part of the state.
- Heavy Rain in New Hampshire, April 16, 1996A low pressure system that developed near Wilmington, Delaware, and tracked north-northeastward along the Connecticut River Valley through western New England brought a strong south to southeast flow of moisture laden air from the Atlantic.
- Heavy Rain and Strong Wind in New Hampshire, September 16 to 17, 1999Tropical Storm Floyd brought torrential rainfall and strong winds to southern New Hampshire, as it tracked from Northern Connecticut into central and northeast Massachusetts.
- Flood and Heavy Rain in New Hampshire, March 8 to 13, 1998A powerful storm system moving slowly northeast from the Ohio Valley to the eastern Great Lakes brought strong winds and heavy rainfall to New Hampshire, resulting in urban street flooding, basement flooding, and some minor river flooding.
- Heavy Rain in New Hampshire, April 16, 1996
- Heavy Rain in New Hampshire, July 13, 1996
- Heavy Rain in New Hampshire, July 13, 1996Tropical Storm Bertha brought heavy rainfall to the region. Note: The heavy rain lasted until 2200 EST, but the Storm Data entry program did not allow for that long of an event length.The center of the storm passed well to the southeast of New Hampshire...over Rhode Island and…
- Heavy Rain in New Hampshire, October 20 to 21, 1996
- Heavy Rain in New Hampshire, May 19 to 20, 1999A cold front approaching from the west, and low pressure off the mid Atlantic coast, combined to bring a southerly flow of warm and humid air to southwest New Hampshire. Locally heavy rain fell in showers and thunderstorms, especially across higher elevations.
- Heavy Rain in New Hampshire, April 21 to 22, 2000Low pressure moving across southeast New England brought heavy rain to Hillsborough County. Many locations received around 3 inches of rain, with as much as 3.66 inches reported in Greenville. No flooding was observed.
- Heavy Rain in New Hampshire, September 15 to 16, 2002Bands of showers and isolated thunderstorms brought heavy rain to parts of southern New Hampshire. The heavy rain was attributed to the remnants of Tropical Storm Hanna interacting with an eastward moving cold front.
More
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.