New Jersey

Storm History: Mercer County, New Jersey

962 episodes, 1,167 events since 1955

Every storm the National Weather Service has filed in Mercer County, New Jersey: 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
1,167
Deaths
14
Injuries
136
Damage
$310 million
Episodes
962

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 Mercer 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
Thunderstorm Wind18402$1.5 million
Hail12608$2.6 million
Flash Flood9421$64 million
Winter Weather93063
Winter Storm83014$1.0 million
Tornado7121$80 million
Strong Wind6003$151,000
Heat5946
High Wind52112$2.8 million
Dense Fog5200
Flood5030$122 million
Drought4400
Heavy Snow3900
Excessive Heat33113
Heavy Rain3000
Cold/Wind Chill2600
Lightning2306$212,000
Coastal Flood1500$10,000
Blizzard912$1.1 million
Wildfire600
Ice Storm400
Extreme Cold/Wind Chill300
Hurricane (Typhoon)205$33 million
Sleet200
Tropical Storm200$100,000
Frost/Freeze200
Astronomical Low Tide200
Storm Surge/Tide100$1.0 million

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 Mercer County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Mercer CountyEvery warning in Mercer County since 1986Every county in New Jersey

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.