Middlesex County tornado history

21 tornadoes touched Middlesex County, Massachusetts between 1950 and 2025 — about 0.3 a year. The strongest was rated F3 (Oct 3, 1970). Tornadoes here killed 1 and injured 6 people.

21tornadoes since 1950

F3strongest rating

1killed · 6 injured

35.4 milongest path · 1970

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

By rating

(E)F05

(E)F110

(E)F24

(E)F32

(E)F40

(E)F50

By month

JFMAMJJASOND

Peak month: July.

By decade

’50’60’70’80’90’00’10’20

Strongest tornadoes

Date	Rating	Path	Width	Injured	Killed
Oct 3, 1970	F3	35.4 mi	60 yd	0	1
Sep 29, 1974	F3	0.1 mi	33 yd	1	0
Jul 21, 1972	F2	7.6 mi	37 yd	4	0
Aug 28, 1965	F2	2 mi	10 yd	0	0
Jul 11, 1958	F2	1.5 mi	17 yd	0	0
Aug 25, 1958	F2	1 mi	50 yd	0	0
Jul 1, 1971	F1	25.2 mi	10 yd	1	0
Aug 7, 1986	F1	4 mi	73 yd	0	0
Jun 19, 1957	F1	1 mi	17 yd	0	0
Jul 18, 1963	F1	1 mi	50 yd	0	0
Aug 22, 2016	EF1	0.8 mi	400 yd	0	0
Jun 19, 1957	F1	0.5 mi	100 yd	0	0

Most recent tornadoes

Date	Rating	Path	Width	Injured	Killed
Sep 6, 2025	EF0	2.4 mi	100 yd	0	0
Aug 23, 2021	EF0	0.8 mi	10 yd	0	0
Aug 23, 2021	EF0	0.1 mi	50 yd	0	0
Aug 22, 2016	EF1	0.8 mi	400 yd	0	0
Aug 7, 1986	F1	4 mi	73 yd	0	0
Sep 27, 1985	F1	0.1 mi	40 yd	0	0
Jul 18, 1983	F0	0.4 mi	20 yd	0	0
Sep 29, 1974	F3	0.1 mi	33 yd	1	0
Jul 21, 1972	F2	7.6 mi	37 yd	4	0
Nov 7, 1971	F1	0.1 mi	10 yd	0	0
Jul 1, 1971	F1	25.2 mi	10 yd	1	0
Oct 3, 1970	F3	35.4 mi	60 yd	0	1

Deadliest: Oct 3, 1970, F3, 1 killed.

Nearby counties

Suffolk County, MA1 Norfolk County, MA15 Essex County, MA14 Worcester County, MA54 Hillsborough County, NH20 Rockingham County, NH11 Providence County, RI13 Plymouth County, MA11

Questions

How many tornadoes has Middlesex County, Massachusetts had?

21 tornadoes touched Middlesex County, Massachusetts between 1950 and 2025 in the NOAA Storm Prediction Center database — about 0.3 per year.

What was the strongest tornado in Middlesex County?

The strongest rating recorded was F3 on Oct 3, 1970, with a 35.4-mile path and 1 deaths.

When is tornado season in Middlesex County?

Most of its tornadoes happened in July (7 of 21). 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.