How many tornadoes has Seymour, CT had?
Seymour has had 48 tornadoes on record within 25 miles since 1950, including 3 strong to violent (EF3+) tornadoes.
When was the most recent tornado near Seymour?
The most recent tornado within 25 miles of Seymour was an EF0 on August 12, 2023.
When is tornado season in Seymour?
July is historically the peak month for tornadoes near Seymour, with 21 on record. April through June account for 14 of the 48 tornadoes on record near Seymour.
At a Glance
Tornadoes Since 1950
48
Within search radius
Violent (EF3+)
3
6.3% of total
Peak Month
July
21 on record
Per Year Avg
0.6
Across 76 years
Recent Tornado Activity Near Seymour
The last 20 years of confirmed tornadoes within 25 miles —
18 total, averaging 0.9 per year over this window.
2026
0
2025
0
2024
0
2023
1
2022
0
2021
2
2020
2
2019
0
2018
2
2017
0
2016
1
2015
0
2014
1
2013
0
2012
0
2011
1
2010
5
2009
2
2008
0
2007
1
Tornadoes by Decade
1950s
4
1960s
2
1970s
6
1980s
5
1990s
8
2000s
8
2010s
10
2020s
5
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.
EF0
12
EF1
25
EF2
8
EF3
2
EF4
1
Tornadoes by Month
Jan
0
Feb
0
Mar
0
Apr
0
May
8
Jun
6
Jul
21
Aug
9
Sep
1
Oct
1
Nov
2
Dec
0
Casualties on Record Near Seymour
1 fatality has been recorded within 25 miles of Seymour since 1950, across 1 event. 189 injuries have been reported across all events. 1962 was the deadliest year on record near Seymour.
The deadliest single event was an F3 on May 24, 1962, which caused 1 fatality along a 11.6-mile track.
Notable Tornadoes Near Seymour
Deadliest Tornado
F3 on May 24, 1962 — 1 fatality, 11.6 mi path, 120 yd wide.
Costliest Tornado
F4 on July 10, 1989 — est. ~$275.0M (NOAA damage class, pre-1996 estimate).
Widest Tornado
EF1 on May 15, 2018 — 600 yards wide.
Longest Path
F2 on August 21, 1951 — 43.9 mile track.
Most Recent
EF0 on August 12, 2023.
What the record shows near Seymour
The 2010s were the busiest decade near Seymour, with 10 of the 48 confirmed tornadoes within 25 miles; the 2020s have produced 5 so far. The Seymour record runs from the 1950s to today.
Of the tornadoes rated near Seymour, 37 reached EF0 or EF1 and 11 reached EF2 or stronger. The most intense on record near Seymour is rated EF4, of which 1 is logged.
Across the last 20 years Seymour has averaged 0.9 confirmed tornadoes a year within 25 miles, 18 in total. 2010 was the busiest of them with 5, and 10 of those years passed with none at all.
Frequently Asked Questions
How many tornadoes has Seymour, CT had?
Since 1950, 48 tornadoes have been recorded within 25 miles of Seymour. Data source: NOAA Storm Prediction Center.
What was the deadliest tornado near Seymour?
The deadliest tornado on record within 25 miles of Seymour was an F3 on May 24, 1962, which caused 1 fatality.
When is tornado season in Seymour?
July is historically the peak month for tornadoes near Seymour, with 21 tornadoes on record. Tornadoes can occur any time of year, but spring months (April–June) generally see the highest activity across most of the central and southern United States.
Has Seymour been hit by an EF4 or EF5 tornado?
Within 25 miles of Seymour, there has been 0 EF5 and 1 EF4 tornado recorded since 1950. EF4 and EF5 tornadoes are the most destructive ratings on the Enhanced Fujita scale, with winds above 166 mph.
When was the most recent tornado near Seymour?
The most recent tornado within 25 miles of Seymour was an EF0 on August 12, 2023.
How do I get tornado warnings for Seymour?
Vortex delivers real-time tornado warnings, severe thunderstorm alerts, and SPC outlook updates for any US location via push notification and phone call. Alerts are sourced directly from the National Weather Service and updated within seconds of issuance.
More Cities in Connecticut
Get real-time tornado alerts for Seymour
Vortex monitors NWS warnings, SPC outlooks, and live radar — with push + phone call alerts when storms threaten your location.
Open the Vortex app →