Tornadoes in Connecticut
Connecticut has recorded 125 tornadoes from 1950 through 2025, about 2.1 per year over the last 30 years. They killed 4 people and injured 703. July is the most active month.
- 125 tornadoes
- 2.1 per year
- 2 rated (E)F4–5
- 4 deaths
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Map data: NWS, OpenFreeMap, OpenStreetMap
Tornadoes per year
When tornadoes happen in Connecticut
Ratings before February 2007 use the original Fujita (F) scale; later tornadoes use the Enhanced Fujita (EF) scale. How the EF scale works.
Deadliest tornadoes in Connecticut
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| October 3, 1979 | F4 | Hartford County | 11.3 mi | 1,400 yd | 3 | 500 |
| May 24, 1962 | F3 | New Haven County | 11.6 mi | 120 yd | 1 | 50 |
Strongest tornadoes in Connecticut
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| October 3, 1979 | F4 | Hartford County | 11.3 mi | 1,400 yd | 3 | 500 |
| July 10, 1989 | F4 | New Haven County | 3 mi | 100 yd | 0 | 40 |
| May 24, 1962 | F3 | New Haven County | 11.6 mi | 120 yd | 1 | 50 |
| May 10, 1954 | F3 | Tolland County | 0.3 mi | 33 yd | 0 | 2 |
| August 21, 1951 | F3 | Middlesex County | 0.1 mi | 10 yd | 0 | 8 |
| July 29, 1971 | F3 | New Haven County | 0.1 mi | 200 yd | 0 | 2 |
| August 21, 1951 | F2 | Litchfield County | 43.9 mi | 100 yd | 0 | 9 |
| August 11, 1966 | F2 | — | 10.7 mi | 100 yd | 0 | 0 |
| July 12, 1950 | F2 | Middlesex County | 10 mi | 10 yd | 0 | 0 |
| July 10, 1989 | F2 | Litchfield County | 10 mi | 73 yd | 0 | 4 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 21, 2024 | EF0 | Litchfield County | 2 mi | 250 yd | 0 | 0 |
| September 13, 2023 | EF1 | Windham County | 1.6 mi | 70 yd | 0 | 0 |
| August 18, 2023 | EF1 | Windham County | 2.7 mi | 200 yd | 0 | 0 |
| August 12, 2023 | EF0 | Litchfield County | 0.8 mi | 30 yd | 0 | 0 |
| July 28, 2022 | EF0 | Litchfield County | 5 mi | 300 yd | 0 | 0 |
| November 13, 2021 | EF1 | — | 1.4 mi | 100 yd | 0 | 0 |
| November 13, 2021 | EF0 | — | 6.1 mi | 100 yd | 0 | 0 |
| November 13, 2021 | EF0 | New Haven County | 1.9 mi | 300 yd | 0 | 0 |
| November 13, 2021 | EF0 | New Haven County | 3.6 mi | 100 yd | 0 | 0 |
| September 9, 2021 | EF0 | Tolland County | 0.8 mi | 75 yd | 0 | 0 |
Counties with the most tornadoes
| County | Tornadoes since 1950 | Per 1,000 sq mi |
|---|---|---|
| Litchfield County | 37 | — |
| New Haven County | 20 | — |
| Hartford County | 18 | — |
| Fairfield County | 15 | — |
| Tolland County | 15 | — |
| Middlesex County | 8 | — |
| Windham County | 8 | — |
| New London County | 2 | — |
About this data
Tornado records come from the NOAA Storm Prediction Center database of confirmed tornadoes, 1950–2025. Tornadoes that crossed state lines are counted in the state where they began. Counts in the early decades are lower partly because many weak tornadoes went unreported before Doppler radar and storm spotter networks.