Hillsborough County tornado history

20 tornadoes touched Hillsborough County, New Hampshire between 1950 and 2025 — about 0.3 a year. The strongest was rated F3 (May 20, 1963).

20tornadoes since 1950

F3strongest rating

0killed · 1 injured

14 milongest path · 1963

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

By rating

(E)F01

(E)F112

(E)F25

(E)F32

(E)F40

(E)F50

JFMAMJJASOND

Peak month: July.

’50’60’70’80’90’00’10’20

Date	Rating	Path	Width	Injured
May 20, 1963	F3	14 mi	100 yd	0
Aug 20, 1968	F3	1 mi	27 yd	1
Jun 9, 1963	F2	10 mi	77 yd	0
Jul 2, 1961	F2	2 mi	17 yd	0
Jul 3, 1997	F2	2 mi	250 yd	0
May 31, 1998	F2	0.5 mi	90 yd	0
Jul 17, 1968	F2	0.1 mi	17 yd	0
Jun 16, 1986	F1	12 mi	30 yd	0
May 9, 1963	F1	10.1 mi	20 yd	0
May 20, 1963	F1	8.5 mi	77 yd	0
Jul 5, 1984	F1	7 mi	20 yd	0
Aug 20, 1968	F1	2.5 mi	17 yd	0

Date	Rating	Path	Width	Injured
May 31, 1998	F2	0.5 mi	90 yd	0
Jul 3, 1997	F2	2 mi	250 yd	0
Jun 16, 1986	F1	12 mi	30 yd	0
Jul 5, 1984	F1	0.1 mi	10 yd	0
Jul 5, 1984	F1	7 mi	20 yd	0
Jun 19, 1978	F0	1.5 mi	100 yd	0
Jul 19, 1972	F1	0.9 mi	40 yd	0
Jul 16, 1970	F1	0.2 mi	17 yd	0
Aug 20, 1968	F1	2.5 mi	17 yd	0
Aug 20, 1968	F3	1 mi	27 yd	1
Jul 17, 1968	F2	0.1 mi	17 yd	0
Jul 19, 1966	F1	0.2 mi	400 yd	0

How many tornadoes has Hillsborough County, New Hampshire had?

20 tornadoes touched Hillsborough County, New Hampshire between 1950 and 2025 in the NOAA Storm Prediction Center database — about 0.3 per year.

What was the strongest tornado in Hillsborough County?

The strongest rating recorded was F3 on May 20, 1963, with a 14-mile path.

When is tornado season in Hillsborough County?

Most of its tornadoes happened in July (9 of 20). 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.