Denville, NJ Tornado History — 52 Tornadoes Since 1950
How many tornadoes has Denville, NJ had?
Denville has had 52 tornadoes on record within 25 miles since 1950, including 2 strong to violent (EF3+) tornadoes.
When was the most recent tornado near Denville?
The most recent tornado within 25 miles of Denville was an EF1 on June 26, 2023.
When is tornado season in Denville?
July is historically the peak month for tornadoes near Denville, with 16 on record. April through June account for 14 of the 52 tornadoes on record near Denville.
At a Glance
Recent Tornado Activity Near Denville
The last 20 years of confirmed tornadoes within 25 miles — 9 total, averaging 0.5 per year over this window.
Preliminary tornado reports near Denville since December 29, 2025
These are 2 preliminary reports, not confirmed tornadoes. They have not yet been through an NWS damage survey, and are not counted in the confirmed totals above.
Preliminary reports are revised, merged, and sometimes withdrawn — historically about 23% are consolidated downward once surveys complete. Ratings are omitted until a survey assigns one.
Confirmed records above are complete through December 29, 2025. NOAA publishes the confirmed archive annually, so tornadoes after that date appear here first and move into the totals above once finalized.
Updates previous tornado report from 1 N Troy Hills. A EF-1 tornado touched down behind the ridgeline on Windsor Drive in the Pine Brook section on Montville around 2:5 (PHI)
On the afternoon of July 21st... an EF-1 tornado occurred in the Lower Berkshire Valley section of Roxbury Township... in Morris County... New Jersey. The tornado began (PHI)
Within 25 miles of Denville. Quoted text is the report narrative exactly as filed. Source: NOAA Storm Prediction Center preliminary storm reports, updated daily.
Tornadoes by Decade
Tornadoes by Enhanced Fujita Rating
F0–F5 ratings (pre-2007) are grouped with their EF equivalents. The Enhanced Fujita scale replaced the original Fujita scale in February 2007.
Tornadoes by Month
Have any tornadoes near Denville been fatal?
No fatalities are on record within 25 miles of Denville from any of the 52 tornadoes since 1950, though 26 injuries have been reported, according to NOAA Storm Prediction Center records.
Notable Tornadoes Near Denville
What the record shows near Denville
The 1980s were the busiest decade near Denville, with 14 of the 52 confirmed tornadoes within 25 miles; the 2020s have produced 3 so far. The Denville record runs from the 1950s to today.
Of the tornadoes rated near Denville, 45 reached EF0 or EF1 and 7 reached EF2 or stronger. The most intense on record near Denville is rated EF3, of which 2 are logged.
Across the last 20 years Denville has averaged 0.5 confirmed tornadoes a year within 25 miles, 9 in total. 2019 was the busiest of them with 3, and 15 of those years passed with none at all.