Hail history in Trenton, NJ
On average, NOAA recorded hail within 15 miles of the center of Trenton on 1.7 days a year from 2016 to 2025, 1.0 of them with hail 1 inch or larger. NOAA recorded hail within 15 miles of the center of Trenton on 30 days since 2010. The largest hail reported was 1.75 in, in 2020. 17 of those days had hail of 1 inch or larger. July has the most hail days, 10 since 2010. The most recent was July 27, 2026. NOAA also recorded high wind on 149 days, with gusts up to 78 mph.
Ranks #110 of 200 US cities for days with hail 1 inch or larger, 2016 to 2025.
- Hail days since 2010
- 30
- Largest hail
- 1.75 in
- Highest gust
- 78 mph
Source: NOAA/NWS Storm Prediction Center
Data through November 1, 2026
30 hail days within 15 miles since 2010, largest 1.75 in
Source: NOAA/NWS Storm Prediction Center
Data through November 1, 2026
Hail days by year
Bar chart of hail days per year, 2010 to 2026. 30 hail days in total; the most was 5 in 2011.
Hail days by month
Hail days by month since 2010: Jan 0, Feb 1, Mar 0, Apr 4, May 3, Jun 6, Jul 10, Aug 5, Sep 1, Oct 0, Nov 0, Dec 0.
Most recent hail days
| Date | Largest hail | Nearest report |
|---|---|---|
| Jul 27, 2026 | 1.0 in | 7.5 mi |
| Jun 22, 2026 | 1.5 in | 9.6 mi |
| Sep 8, 2023 | 0.75 in | 11.5 mi |
| Apr 1, 2023 | 1.5 in | 1.3 mi |
| Feb 21, 2023 | 1.0 in | 4.6 mi |
| Jul 29, 2021 | 1.5 in | 10.0 mi |
| Jul 17, 2021 | 1.0 in | 14.1 mi |
| Jul 6, 2021 | 1.0 in | 10.7 mi |
| Jun 4, 2021 | 0.75 in | 7.6 mi |
| Jul 6, 2020 | 1.75 in | 3.7 mi |
About this data
- Distances are from the center of Trenton, not from any one property. Look up a street address below for a single building.
- Reports come from trained spotters and the public, so they cluster near towns and roads.
- No report does not mean no hail. Hail can fall where no one is there to report it.
- This is not a damage or insurance assessment.
149 high-wind days within 15 miles since 2010, strongest gust 78 mph
Source: NOAA/NWS Storm Prediction Center
Data through November 1, 2026
Most recent high-wind days
| Date | Highest gust | Nearest report |
|---|---|---|
| Aug 20, 2026 | Not recorded | 4.6 mi |
| Aug 7, 2026 | 58 mph | 8.0 mi |
| Jul 18, 2026 | Not recorded | 5.5 mi |
| Jul 4, 2026 | Not recorded | 5.6 mi |
| Jul 3, 2026 | Not recorded | 3.7 mi |
| Jun 22, 2026 | Not recorded | 2.2 mi |
| Jun 14, 2026 | Not recorded | 4.0 mi |
| Jun 6, 2026 | Not recorded | 3.3 mi |
| May 20, 2026 | 62 mph | 5.9 mi |
| Mar 16, 2026 | 58 mph | 1.3 mi |
About this data
- Distances are from the center of Trenton, not from any one property. Look up a street address below for a single building.
- Reports come from trained spotters and the public, so they cluster near towns and roads.
- No report does not mean no hail. Hail can fall where no one is there to report it.
- Wind speed is the highest reported gust; some reports have no speed.
- This is not a damage or insurance assessment.
Gusts, tornadoes and hurricanes in Trenton
Estimated peak gusts
No day since October 1, 2021 had an estimated peak gust of 58 mph or more at Trenton.
Estimates: the highest gust of each storm day in NOAA’s hourly 2.5 km wind analysis (URMA), which fills in between weather stations. Analyses like this smooth out short thunderstorm gusts, so they are best for widespread wind (hurricanes, winter storms, high wind days); for thunderstorm wind, NOAA’s wind reports are the better record. Not a measurement at any building.
Tornadoes within 10 miles
NOAA recorded 20 tornadoes whose path came within 10 miles of Trenton since 1950; the strongest was rated EF3.
| Day | Rating | Path length | Closest |
|---|---|---|---|
| Jun 14, 2024 | EF0 | 0.13 miles | 3.3 miles |
| Apr 1, 2023 | EF1 | 2.69 miles | 7.9 miles |
| Apr 1, 2023 | EF1 | 3.9 miles | 8.4 miles |
| Feb 21, 2023 | EF2 | 5.8 miles | 5 miles |
| Sep 1, 2021 | EF0 | 2.61 miles | 7.7 miles |
| Jul 29, 2021 | EF1 | 1.64 miles | 9.5 miles |
| Jul 29, 2021 | EF2 | 6.31 miles | 6.7 miles |
| Sep 23, 2003 | EF1 | 5 miles | 0.8 miles |
Show all 20Show fewer
| Day | Rating | Path length | Closest |
|---|---|---|---|
| Sep 23, 2003 | EF1 | 1.8 miles | 7.2 miles |
| Jun 22, 1996 | EF0 | 2 miles | 0.8 miles |
| Jul 31, 1992 | EF1 | 4.5 miles | 0.5 miles |
| Oct 18, 1990 | EF1 | 1 miles | 7.8 miles |
| Nov 16, 1989 | EF1 | 5 miles | 4.3 miles |
| Aug 17, 1988 | EF2 | 4.5 miles | 0.6 miles |
| Jul 2, 1987 | EF1 | 1 miles | 8.9 miles |
| Jul 12, 1975 | EF1 | 0.1 miles | 5.9 miles |
| Oct 18, 1967 | EF1 | 0.5 miles | 7.4 miles |
| May 24, 1962 | EF2 | 16.6 miles | 5 miles |
| Jun 24, 1960 | EF3 | 12.9 miles | 3.1 miles |
| Jun 13, 1958 | EF2 | 0.1 miles | 6.1 miles |
Source: NOAA/NWS Storm Prediction Center. Ratings before 2007 are on the original Fujita scale.
Hurricanes and tropical storms
21 storms in NOAA's records brought modeled tropical-storm-force winds (39 mph or more) to Trenton.
| Storm | Modeled peak gust | Sustained | Closest pass |
|---|---|---|---|
| Isaias (2020) | 65 mph | 53 mph | 34 miles |
| Sandy (2012) | 72 mph | 59 mph | 44 miles |
| Irene (2011) | 60 mph | 48 mph | 33 miles |
| Bertha (1996) | 52 mph | 42 mph | 13 miles |
| Belle (1976) | 51 mph | 42 mph | 70 miles |
| Donna (1960) | 53 mph | 43 mph | 75 miles |
| Hazel (1954) | 51 mph | 42 mph | 129 miles |
| Carol (1954) | 52 mph | 43 mph | 114 miles |
Show all 21Show fewer
| Storm | Modeled peak gust | Sustained | Closest pass |
|---|---|---|---|
| Able (1952) | 58 mph | 47 mph | 39 miles |
| 1944 Great Atlantic hurricane | 55 mph | 45 mph | 85 miles |
| 1938 New England hurricane | 64 mph | 52 mph | 98 miles |
| Unnamed storm, 1934 | 55 mph | 45 mph | 79 miles |
| Unnamed storm, 1929 | 52 mph | 42 mph | 68 miles |
| Unnamed storm, 1915 | 54 mph | 44 mph | 24 miles |
| Unnamed storm, 1903 | 73 mph | 59 mph | 11 miles |
| Unnamed storm, 1899 | 56 mph | 46 mph | 40 miles |
| Unnamed storm, 1894 | 53 mph | 43 mph | 65 miles |
| 1893 Sea Islands hurricane | 63 mph | 52 mph | 46 miles |
| Unnamed storm, 1893 | 60 mph | 49 mph | 46 miles |
| Unnamed storm, 1879 | 49 mph | 40 mph | 88 miles |
| Unnamed storm, 1878 | 78 mph | 63 mph | 72 miles |
Modeled from NOAA’s best tracks for open, flat ground; not measurements. How we model hurricane winds
29 radar hail days within 15 miles since 2020, largest 1.5 in or more
Source: NOAA MRMS radar (MESH), from October 14, 2020. Estimates of the largest hail in each 1 km cell, not measurements.
15 days with radar hail 1 inch or larger, 0 at 2 inches or larger, within 15 miles of Trenton’s center.
Biggest radar hail days
- 0.75 in+
- 1.0 in+
- 1.5 in+
- 2.0 in+
- 2.5 in+
- 3.0 in+
Most recent radar hail days
| Date | Largest radar estimate |
|---|---|
| Aug 27, 2026 | 0.75 in or more |
| Aug 7, 2026 | 1.25 in or more |
| Jul 27, 2026 | 0.75 in or more |
| Jul 3, 2026 | 0.75 in or more |
| Jun 22, 2026 | 1.0 in or more |
| May 10, 2026 | 1.0 in or more |
Storms in Trenton
A National Weather Service Mount Holly study of 1984 to 2013 reports across its forecast area, which includes Mercer County, found damaging thunderstorm winds most frequent in June and July, and days with large hail most frequent in July.1
Notable storms
- July 29, 2021During a rare tornado outbreak, the EF1 Windsor-Robbinsville Township tornado touched down on Route 130 south of Windsor and snapped or uprooted trees along a 1.6-mile path. The same evening, an EF3 tornado hit Trevose in Bucks County, Pennsylvania, snapping 5 power poles and damaging warehouses in an industrial area.2,3
- July 6, 2020Hail the size of ping pong balls fell near White Horse, and hail a little larger than quarters fell near Mercerville. Across the Delaware River, hail up to about golf ball size fell in Levittown, Pennsylvania.4,5,6
- October 29, 2012Post-tropical Sandy brought a 68 mph gust to Trenton. In Mercer County, a falling tree killed a man in Princeton, and another man died after the wind blew him over in Hamilton Township. NOAA's storm records list about $100 million in property damage from high winds in Mercer County.7
- August 16, 2010Thunderstorms with gusts estimated at 64 mph hit the Princeton area hardest, with wind damage from Nassau Street to Carnegie Lake and fallen trees damaging homes and vehicles. NOAA's storm records list about $1 million in property damage in the area.8
- August 2, 2009A microburst hit Mercer County Airport, where a 64 mph gust was recorded, a plane was thrown across a roadway into a building and steel roofing was ripped from hangars. NOAA's storm records list about $500,000 in property damage in the area.9
- October 4, 2000Wind gusts estimated at up to 80 mph uprooted about 75 large trees in Lawrence Township, and 1.75-inch hail fell in Princeton Township. NOAA's storm records list about $250,000 in property damage in the area.10,11
Warnings and alerts
Mercer County sends emergency alerts by phone, text and email through its Swift911 system, and the City of Trenton sends Emergency Alert E-Notifications to subscribers.12,13,14
Sources
- 1. National Weather Service: Climatology of Storm Data Events for the NWS Mount Holly Forecast Area
- 2. NOAA NCEI Storm Events Database: Tornado, Mercer County, July 29, 2021
- 3. NOAA NCEI Storm Events Database: Tornado, Bucks County, July 29, 2021
- 4. NOAA NCEI Storm Events Database: Hail, Mercer County, July 6, 2020
- 5. NOAA NCEI Storm Events Database: Hail, Mercer County, July 6, 2020 (Mercerville)
- 6. NOAA NCEI Storm Events Database: Hail, Bucks County, July 6, 2020
- 7. NOAA NCEI Storm Events Database: High Wind, Mercer County, October 29, 2012
- 8. NOAA NCEI Storm Events Database: Thunderstorm Wind, Mercer County, August 16, 2010
- 9. NOAA NCEI Storm Events Database: Thunderstorm Wind, Mercer County, August 2, 2009
- 10. NOAA NCEI Storm Events Database: Thunderstorm Wind, Mercer County, October 4, 2000
- 11. NOAA NCEI Storm Events Database: Hail, Mercer County, October 4, 2000
- 12. Mercer County, NJ: Emergency Management & Public Safety
- 13. Mercer County, NJ: News Alert: Be Mercer Ready. Sign up for emergency alerts
- 14. City of Trenton, NJ: Emergency Alert
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Questions about hail in Trenton
Source: NOAA/NWS Storm Prediction Center
Data through November 1, 2026
- How often does it hail in Trenton?
- NOAA recorded hail within 15 miles of the center of Trenton on 1.7 days a year on average from 2016 to 2025, 1.0 of them with hail 1 inch or larger. Since 2010 it recorded 30 hail days.
- When is hail season in Trenton?
- July has the most hail days within 15 miles of the center of Trenton, 10 since 2010, then June (6) and August (5).
- What is the largest hail recorded in Trenton?
- 1.75 in, in 2020: the largest hail NOAA recorded within 15 miles of the center of Trenton since 2010.
- When did it last hail in Trenton?
- NOAA's most recent hail report within 15 miles of the center of Trenton is from July 27, 2026, with hail up to 1.0 in reported 7.5 miles from the center. Data through November 1, 2026.