Norwalk, CT Tornado History — 27 Tornadoes Since 1950
How many tornadoes has Norwalk, CT had?
Norwalk has had 27 tornadoes on record within 25 miles since 1950.
When was the most recent tornado near Norwalk?
The most recent tornado within 25 miles of Norwalk was an EF0 on August 4, 2020.
When is tornado season in Norwalk?
July is historically the peak month for tornadoes near Norwalk, with 7 on record. April through June account for 8 of the 27 tornadoes on record near Norwalk.
At a Glance
Recent Tornado Activity Near Norwalk
The last 20 years of confirmed tornadoes within 25 miles — 9 total, averaging 0.5 per year over this window.
Preliminary tornado reports near Norwalk since December 29, 2025
This is a preliminary report, not confirmed tornadoes. It has not yet been through an NWS damage survey, and is 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Preliminary reports are revised, merged, and sometimes withdrawn — historically about 23% are consolidated downward once surveys complete.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.
Trees & wires down around Lawridge Dr in Purchase. (OKX)
Within 25 miles of Norwalk. 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
Casualties on Record Near Norwalk
1 fatality has been recorded within 25 miles of Norwalk since 1950, across 1 event. 19 injuries have been reported across all events. 1991 was the deadliest year on record near Norwalk.
The deadliest single event was an F0 on June 12, 1991, which caused 1 fatality along a 0.7-mile track.
Notable Tornadoes Near Norwalk
What the record shows near Norwalk
The 1990s were the busiest decade near Norwalk, with 9 of the 27 confirmed tornadoes within 25 miles; the 2020s have produced 1 so far. The Norwalk record runs from the 1950s to today.
Of the tornadoes rated near Norwalk, 24 reached EF0 or EF1 and 3 reached EF2 or stronger. The most intense on record near Norwalk is rated EF2, of which 3 are logged.
Across the last 20 years Norwalk has averaged 0.5 confirmed tornadoes a year within 25 miles, 9 in total. 2018 was the busiest of them with 4, and 14 of those years passed with none at all.