Gregory County tornado history

29 tornadoes touched Gregory County, South Dakota between 1950 and 2025 — about 0.4 a year. The strongest was rated F3 (May 14, 1962).

29tornadoes since 1950
F3strongest rating
0killed · 17 injured
53.8 milongest path · 1962
(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5· dots = start point only

By rating

(E)F014
(E)F15
(E)F26
(E)F34
(E)F40
(E)F50

By month

JFMAMJJASOND

Peak month: May.

By decade

’50’60’70’80’90’00’10’20

Strongest tornadoes

DateRatingPathWidthInjuredKilled
May 14, 1962F353.8 mi1,760 yd80
May 21, 1962F311 mi10 yd00
May 8, 1965F31.5 mi20 yd00
May 15, 1962F30.1 mi10 yd00
Jun 20, 1968F233.5 mi10 yd00
Aug 1, 1954F214.2 mi10 yd20
Jul 28, 2025EF27.4 mi175 yd00
Jun 23, 1993F23 mi100 yd00
Aug 9, 2002F22 mi200 yd00
Jun 4, 1966F21 mi800 yd00
May 21, 1962F147.9 mi10 yd20
Jul 28, 2025EF111.7 mi150 yd00

Most recent tornadoes

DateRatingPathWidthInjuredKilled
Jul 28, 2025EF111.7 mi150 yd00
Jul 28, 2025EF02.7 mi50 yd00
Jul 28, 2025EF27.4 mi175 yd00
Aug 6, 2019EF13.8 mi75 yd20
Jun 30, 2019EF00.7 mi25 yd00
Jul 23, 2010EF00.1 mi50 yd00
Jul 23, 2010EF00.2 mi50 yd00
May 5, 2007EF00.1 mi50 yd00
May 5, 2007EF00.1 mi50 yd00
Jun 9, 2003F00.1 mi50 yd00
Jun 9, 2003F04 mi400 yd00
Aug 9, 2002F22 mi200 yd00

Nearby counties

Boyd County, NE10Charles Mix County, SD44Keya Paha County, NE15Tripp County, SD38Brule County, SD29Douglas County, SD25Aurora County, SD17Holt County, NE80

Questions

How many tornadoes has Gregory County, South Dakota had?

29 tornadoes touched Gregory County, South Dakota between 1950 and 2025 in the NOAA Storm Prediction Center database — about 0.4 per year.

What was the strongest tornado in Gregory County?

The strongest rating recorded was F3 on May 14, 1962, with a 53.8-mile path.

When is tornado season in Gregory County?

Most of its tornadoes happened in May (10 of 29). 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).