Lewis County tornado history

8 tornadoes touched Lewis County, New York between 1950 and 2025 — about 0.1 a year. The strongest was rated EF3 (Aug 7, 2023).

8tornadoes since 1950

EF3strongest rating

0killed · 0 injured

16 milongest path · 2023

(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5· dots = start point only

By rating

(E)F03

(E)F13

(E)F20

(E)F31

(E)F40

(E)F50

unrated1

JFMAMJJASOND

Peak month: August.

’50’60’70’80’90’00’10’20

Date	Rating	Path	Width
Aug 7, 2023	EF3	16 mi	700 yd
Jul 8, 2014	EF1	12.3 mi	300 yd
Aug 1, 2005	F1	1.5 mi	50 yd
Jul 12, 1969	F1	0.8 mi	150 yd
Jun 4, 1987	F0	0.4 mi	50 yd
Aug 16, 2016	EF0	0.2 mi	10 yd
Oct 2, 2004	F0	0.1 mi	5 yd
Aug 7, 2023	unrated	0.8 mi	100 yd

Date	Rating	Path	Width
Aug 7, 2023	unrated	0.8 mi	100 yd
Aug 7, 2023	EF3	16 mi	700 yd
Aug 16, 2016	EF0	0.2 mi	10 yd
Jul 8, 2014	EF1	12.3 mi	300 yd
Aug 1, 2005	F1	1.5 mi	50 yd
Oct 2, 2004	F0	0.1 mi	5 yd
Jun 4, 1987	F0	0.4 mi	50 yd
Jul 12, 1969	F1	0.8 mi	150 yd

How many tornadoes has Lewis County, New York had?

8 tornadoes touched Lewis County, New York between 1950 and 2025 in the NOAA Storm Prediction Center database — about 0.1 per year.

What was the strongest tornado in Lewis County?

The strongest rating recorded was EF3 on Aug 7, 2023, with a 16-mile path.

When is tornado season in Lewis County?

Most of its tornadoes happened in August (4 of 8). Tornadoes can occur in any month, so keep alerts on year-round.

Right now: live tornado warnings map · alerts for your location. Dates link to that day’s full storm reports where available (2004 onward).