New Hampshire

Storm History: Belknap County, New Hampshire

463 episodes, 584 events since 1960

Every storm the National Weather Service has filed in Belknap County, New Hampshire: floods, hail, damaging wind, tornadoes, winter storms, heat and the rest, with the most serious on record. Events filed by forecast zone count for every county the zone covers.

The record

Events
584
Deaths
3
Injuries
55
Damage
$23 million
Episodes
463

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

Open the live radar over Belknap County

Every year

From 1996 the record holds 48 kinds of event with each office’s narrative; before that, tornadoes, hail and thunderstorm wind only, and before 1955 tornadoes alone.

By kind of event

Counted under the kind that heads each episode.

Kind of eventEventsDeathsInjuriesDamage
Heavy Snow12300
Hail115030$368,000
Thunderstorm Wind7903$40,000
Winter Storm4000
Tornado3817$864,000
Flash Flood3012$3.9 million
Strong Wind3000$4,000
Winter Weather2400
Drought1900$9.6 million
Flood1600$2.7 million
High Wind1500$191,000
Lightning15012$367,000
Cold/Wind Chill1400
Extreme Cold/Wind Chill900
Blizzard500
Heavy Rain200
Ice Storm200$4.1 million
Heat200
Tropical Storm211
Debris Flow200$387,000
Coastal Flood100
Frost/Freeze100

The deadliest

The costliest

Damage within this county, in the dollars of its year.

The largest hail

The largest stone in each episode, which may have fallen in a neighboring county of the same episode.

The strongest tornadoes

Every tornado in Belknap County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Belknap CountyEvery warning in Belknap County since 1986Every county in New Hampshire

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.