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Mercer County, New Jersey
Tornadoes, hail, floods and severe storms recorded here between 1955 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
18
Tornado reports
63
Hail reports
137
Floods since 1996
1,167
All events
14
Deaths
$309.0M
Property damage
Tornado paths in Mercer County
The part of each tornado’s path NOAA recorded in this county, 18 in all. Zoom in and the paths widen to their surveyed width.
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Year by year
All storm eventsTornadoes
NOAA's storm database records tornadoes back to 1950 and hail and thunderstorm wind back to 1955, but floods only from 1996 on. Older floods are missing here. For those, the U.S. Geological Survey's stream gauge records and flood reports are the place to look.
Most significant events
The strongest tornadoes, deadliest events and biggest damage here, up to 50.
Widespread flash flooding occurred in Mercer County with numerous road closures and nearly 100 water rescues. There were two flood related fatalities in the county, both in Hopewell Township. Many waterways overflowed their banks including the Assunpink Creek, Stony Brook and the…
In Princeton, a 39-year-old emergency responder died from injuries sustained while investigating a submerged vehicle in flood waters. No one was in the vehicle. In Lawrence Township, a 50-year-old man became trapped in a sewer pipe at Shemin Nurseries and drowned. Flooding along …
A southwesterly flow produced the first 90-degree temperatures of the 2016 season on the 26th. These temperatures, in combination with high relative humidity, caused heat-related stress for more than a dozen middle school students from William Penn Middle School in Lower Makefiel…
Eighty-three homes were damaged by the flooding associated with Lee in Mercer County. Six homes suffered major damage, seventy-two minor damage and five more were affected by flood waters. In Trenton, about 250 people were evacuated from their homes in the Island and Glen Afton s…
The combination of poor drainage, basement and waterway flooding caused a driving nightmare in Mercer County. Many major roadways in the county were flooded and closed in sections including U.S. Routes 1, 130 and 206 and New Jersey State Route 33. There were still about 10 roadwa…
Flash Flood Flash Flood
Hughes Drive was flooded near Mercer County Park. The road was impassible.
Thunderstorm Wind Thunderstorm Wind
Wires reported down. Time estimated from radar.
Thunderstorm Wind Thunderstorm Wind
Trees and wires down around Hamilton Township. Time estimated from radar.
Thunderstorm Wind Thunderstorm Wind
Downed Trees on NJ 27 Northbound North of US 206. Time estimated from radar.
Thunderstorm Wind Thunderstorm Wind
Large limb was broken from one tree, another small tree was snapped at the roots, in close proximity to each other on the College of New Jersey campus.
Thunderstorm Wind Thunderstorm Wind
Two trees were blown down by a strong wind gust ahead of the rain starting.
Thunderstorm Wind Thunderstorm Wind
Several trees and wires were blown down in and near Hopewell.
Dense Fog Dense Fog
Several hours of dense fog was observed at Trenton-Mercer Airport.
Dense Fog Dense Fog
Several hours of dense fog was observed at Trenton-Mercer Airport.
Thunderstorm Wind Thunderstorm Wind
Several trees and wires down around Ewing. Time estimated from radar.
Thunderstorm Wind Thunderstorm Wind
Downed Wires on NJ 29 Both Directions North of River Knoll Dr (Hopewell Twp), All lanes closed. Time estimated from radar.
Thunderstorm Wind Thunderstorm Wind
Several trees and wires down around Hopewell and Pennington. Time estimated from radar.
Thunderstorm Wind Thunderstorm Wind
From the NJ DOT - TOC South: Downed Tree on NJ 31 Southbound North of CR 622/Olden Ave (Ewing Twp), 1 center lane of 4 lanes closed. Time estimated from radar.
Thunderstorm Wind Thunderstorm Wind
Downed Tree/Wires on NJ 31 Both Directions North of CR 518/Lambertville Hopewell Tpke (East Amwell Twp). All lanes closed. Time estimated from radar.
Thunderstorm Wind Thunderstorm Wind
From the NJ DOT - TOC South: Downed Tree/Wires on US 206 Northbound At Province Line Rd (Lawrence Twp), All lanes closed. Time estimated from radar.
Thunderstorm Wind Thunderstorm Wind
Several trees and wires down around Princeton. Time estimated from radar.
Thunderstorm Wind Thunderstorm Wind
A 58 MPH gust was measured at Trenton Mercer Airport.
Dense Fog Dense Fog
Several hours of dense fog was observed at Trenton-Mercer Airport.
Winter Weather Winter Weather
A light glaze of ice from freezing rain occurred across the area. A trace of accretion was reported in Ewing Township.
Dense Fog Dense Fog
Several hours of dense fog was observed at Trenton-Mercer Airport.
Winter Storm Winter Storm
Snowfall amounts generally ranged from around 15-18. The highest reliable measurement received was 19.3 from Robbinsville Township.
Dense Fog Dense Fog
Several hours of dense fog was observed at Trenton-Mercer Airport.
Winter Storm Winter Storm
Storm total snow and sleet accumulation totals ranged from 7-10. The highest report received was 10.0 in Princeton.
Winter Weather Winter Weather
Snowfall totals ranged from 3-4. The highest reported amount was 4.6 in Woodsville.
Dense Fog Dense Fog
Several hours of dense fog was observed at Trenton-Mercer Airport.
Dense Fog Dense Fog
Several hours of dense fog was reported at Trenton-Mercer Airport.
Winter Weather Winter Weather
Snow and sleet totals ranged from around 0.5-1 in most areas. The highest report was 1.2 from Hopewell. A light glaze of freezing rain/freezing drizzle was also reported across the county.
Winter Storm Winter Storm
Snowfall totals ranged from 6-7. The highest report was 8.4 from Mercerville.
Dense Fog Dense Fog
Several hours of dense fog was observed at Trenton-Mercer Airport.
Dense Fog Dense Fog
Dense fog was reported for several hours at Trenton-Mercer Airport.
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2026 | 25 | 0 |
| 2025 | 28 | 0 |
| 2024 | 24 | 1 |
| 2023 | 38 | 3 |
| 2022 | 21 | 0 |
| 2021 | 46 | 3 |
| 2020 | 35 | 0 |
| 2019 | 44 | 1 |
| 2018 | 28 | 0 |
| 2017 | 13 | 0 |
| 2016 | 25 | 0 |
| 2015 | 30 | 0 |
| 2014 | 37 | 0 |
| 2013 | 32 | 0 |
| 2012 | 53 | 0 |
| 2011 | 37 | 1 |
| 2010 | 36 | 0 |
| 2009 | 40 | 0 |
| 2008 | 38 | 0 |
| 2007 | 41 | 0 |
| 2006 | 29 | 0 |
| 2005 | 39 | 0 |
| 2004 | 33 | 0 |
| 2003 | 44 | 1 |
| 2002 | 37 | 0 |
| 2001 | 37 | 0 |
| 2000 | 38 | 0 |
| 1999 | 45 | 0 |
| 1998 | 44 | 0 |
| 1997 | 43 | 0 |
| 1996 | 46 | 1 |
| 1995 | 4 | 0 |
| 1994 | 7 | 0 |
| 1992 | 2 | 1 |
| 1991 | 2 | 0 |
| 1990 | 5 | 0 |
| 1989 | 5 | 1 |
| 1988 | 3 | 1 |
| 1987 | 8 | 0 |
| 1986 | 1 | 0 |
| 1985 | 3 | 0 |
| 1983 | 1 | 0 |
| 1981 | 1 | 0 |
| 1980 | 3 | 0 |
| 1977 | 5 | 0 |
| 1976 | 1 | 0 |
| 1974 | 3 | 0 |
| 1970 | 1 | 0 |
| 1967 | 1 | 1 |
| 1962 | 1 | 1 |
| 1961 | 1 | 0 |
| 1960 | 1 | 1 |
| 1958 | 1 | 1 |
| 1955 | 1 | 0 |
Search your address
See every tornado that passed within 25 miles of a place in Mercer County, measured to its path.
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