Hail and tornadoes in Grant County, WI
Since January 2021, radar estimated hail somewhere in Grant County, WI on 60 days. The biggest estimate: 3 in or larger (teacup), on Tue, Feb 22, 2022. Hail was reported to the National Weather Service inside the county on 10 days.
Still loading: radar estimates go back to Wed, Oct 14, 2020, and the earlier years are being added.
Radar estimates are NOAA's MESH: the largest hail the radar estimates aloft, on cells about 0.7 mile across, shown as the lower bound of a size band (“1.5+”). They often run larger than what reached the ground, and they aren't evidence of damage at any address.
Hail on record since 1955
NOAA's Storm Events database lists 167 hail reports in Grant County, WI on 68 days, 12 of them 2 inches or larger. The largest: 2.75 in, near Platteville, on Fri, Apr 18, 2025.
By decade: 2000s: 75 · 2010s: 62 · 2020s: 30
Tornadoes since 1950
22 tornadoes have touched Grant County, WI since 1950, 1 of them rated F3/EF3 or stronger. They killed 0 and injured 5.
Strongest
- Sat, Aug 7, 2021 · EF3 · 9.38 mi long, 1,100 yd wide · near Boscobel
- Mon, Jun 16, 2014 · EF2 · 3.76 mi long, 100 yd wide · near Platteville · 5 injuries
- Tue, Sep 4, 2012 · EF2 · 0.72 mi long, 75 yd wide · near Patch Grove
- Wed, Jun 17, 2026 · EF1 · 11.87 mi long, 150 yd wide · near Boscobel
- Mon, Jul 15, 2024 · EF1 · 0.29 mi long, 30 yd wide · near Kieler
Most recent
- Wed, Jun 17, 2026 · EF1 · 11.87 mi long, 150 yd wide · near Boscobel
- Mon, Jul 15, 2024 · EF1 · 0.29 mi long, 30 yd wide · near Kieler
- Sat, Jun 22, 2024 · EF0 · 0.16 mi long, 40 yd wide · near Cornelia
- Sat, Aug 7, 2021 · EF3 · 9.38 mi long, 1,100 yd wide · near Boscobel
- Mon, Aug 10, 2020 · EF0 · 0.55 mi long, 50 yd wide · near Mc Cartney
- Sat, Mar 28, 2020 · EF1 · 6.22 mi long, 120 yd wide · near Rockville
- Tue, Jun 26, 2018 · EF0 · 0.09 mi long, 10 yd wide · near Georgetown
- Wed, May 9, 2018 · EF0 · 1.55 mi long, 70 yd wide · near Fennimore
- Sun, Jun 29, 2014 · EF1 · 8.18 mi long, 600 yd wide · near Fennimore
- Mon, Jun 16, 2014 · EF1 · 0.49 mi long, 25 yd wide · near Platteville
By decade: 2000s: 9 · 2010s: 7 · 2020s: 6
Still loading: NOAA's record goes back to 1950, and 2003 onward is in so far.
Every hail day since January 2021
- Tue, Oct 13, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Sep 3, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Aug 21, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Aug 10, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Jul 2, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1 in (3 SE Glen Haven, WI)
- 2 in (4 SSE Glen Haven, WI)
- Wed, Jun 24, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1 in (4 W Lancaster, WI)
- Wed, Jun 10, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, May 15, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Apr 17, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Wed, Apr 15, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Apr 14, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 2 in (Mount Hope, WI)
- 1 in (Patch Grove, WI)
- Tue, Mar 10, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
Reported in the county- 1 in (5 SW Platteville, WI)
- Mon, Sep 22, 2025
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 2 in (2 S Montfort, WI)
- 2 in (5 WSW Cobb, WI)
- 1 in (1 N Montfort, WI)
- Sat, Aug 16, 2025
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1 in (4 W Ellenboro, WI)
- Sat, Aug 9, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Jul 11, 2025
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Thu, Jul 3, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Jun 29, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Jun 23, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, Apr 23, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Apr 17, 2025
Radar estimate anywhere in the county: 2 in or larger (hen egg)
Reported in the county- 1.5 in (3 NNW Burton, WI)
- 1.75 in (3 W Platteville, WI)
- 2.75 in (3 W Platteville, WI)
- 2.5 in (1 W Platteville, WI)
- Thu, Mar 27, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Sep 21, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Sep 19, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Aug 5, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Jul 21, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Jul 15, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sun, Jul 14, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Jul 13, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Jun 24, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, May 24, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, May 21, 2024
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1 in (1 NW Platteville, WI)
- 1.5 in (Platteville, WI)
- 1.75 in (Dickeyville, WI)
- Sat, Apr 27, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, Sep 16, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Aug 11, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Jul 28, 2023
Radar estimate anywhere in the county: 2 in or larger (hen egg)
Reported in the county- 1 in (Fennimore, WI)
- 2 in (Platteville, WI)
- Wed, Jul 26, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sun, Jul 16, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Jul 13, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Apr 4, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Aug 19, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, Aug 13, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Aug 3, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Jul 22, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Jul 5, 2022
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Mon, Jul 4, 2022
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Wed, Jun 15, 2022
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Tue, Feb 22, 2022
Radar estimate anywhere in the county: 3 in or larger (teacup)
No hail reported in the county.
- Tue, Sep 28, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sun, Sep 12, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Aug 27, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Aug 26, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Aug 24, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, Aug 11, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Aug 10, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Aug 7, 2021
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1.25 in (3 S BLUE RIVER, WI)
- Tue, Jul 27, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Jun 17, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, Jun 16, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Apr 4, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
Radar estimates and reports are for anywhere inside the county's boundary. Radar estimates come from NOAA's MRMS estimated hail size (MESH), the largest hail the radar estimates aloft on a ~1 km grid. They often run larger than the hail that reached the ground, and they aren't an observation at any address. Reports are what people reported to the National Weather Service. Neither is proof of damage or an official record for an insurance claim. From NOAA's Storm Events Database (NCEI), which records tornadoes from 1950, hail and thunderstorm wind from 1955, and every kind of storm from 1996. A tornado that crossed county lines is counted in each county it touched. Recent months are added as NCEI publishes them, a few months behind. Damage is in the dollars of its year and is often an estimate.