Hail and tornadoes in Oconto County, WI
Since October 2020, radar estimated hail somewhere in Oconto County, WI on 41 days. The biggest estimate: 2 in or larger (hen egg), on Thu, May 12, 2022. Hail was reported to the National Weather Service inside the county on 6 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 76 hail reports in Oconto County, WI on 49 days, 7 of them 2 inches or larger. The largest: 4 in, near Abrams, on Sun, Aug 2, 2015.
By decade: 1990s: 12 · 2000s: 20 · 2010s: 25 · 2020s: 19
Tornadoes since 1950
7 tornadoes have touched Oconto County, WI since 1950, none of them rated F3/EF3 or stronger. They killed 0 and injured 2.
Strongest
- Thu, Jun 7, 2007 · EF2 · 19.1 mi long, 1,320 yd wide · near Mountain · 2 injuries
- Wed, Jul 23, 2025 · EF1 · 2.33 mi long, 65 yd wide · near Gillett
- Tue, Jun 25, 2024 · EF1 · 0.76 mi long, 83 yd wide · near Underhill
- Mon, Jul 6, 2015 · EF1 · 2.25 mi long, 50 yd wide · near Gillett
- Wed, Jul 23, 2025 · EF0 · 2.37 mi long, 65 yd wide · near Oconto
Most recent
- Wed, Jul 23, 2025 · EF0 · 2.37 mi long, 65 yd wide · near Oconto
- Wed, Jul 23, 2025 · EF1 · 2.33 mi long, 65 yd wide · near Gillett
- Tue, Jun 25, 2024 · EF1 · 0.76 mi long, 83 yd wide · near Underhill
- Mon, Jul 6, 2015 · EF1 · 2.25 mi long, 50 yd wide · near Gillett
- Tue, Jul 9, 2013 · EF0 · 1.58 mi long, 100 yd wide · near Oconto
- Thu, Jun 7, 2007 · EF2 · 19.1 mi long, 1,320 yd wide · near Mountain · 2 injuries
- Thu, Apr 25, 1996 · F0 · 0.1 mi long, 40 yd wide · near Pensaukee
By decade: 1990s: 1 · 2000s: 1 · 2010s: 2 · 2020s: 3
Still loading: NOAA's record goes back to 1950, and 1995 onward is in so far.
Every hail day since October 2020
- Thu, Sep 3, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Aug 18, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Aug 11, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Jul 30, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Jun 30, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, Jun 24, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jul 23, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Jul 8, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (2 NE Hayes, WI)
- Mon, Jun 30, 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.
- Fri, Jun 20, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Jun 19, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Jun 8, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Apr 28, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Aug 27, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Jun 24, 2024
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1.5 in (5 W Underhill, WI)
- 1.5 in (5 W Underhill, WI)
- 1.5 in (5 W Underhill, WI)
- Tue, Jun 4, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Oct 24, 2023Reported in the county
- 1 in (Oconto Falls, WI)
- Tue, Sep 5, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Aug 25, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Aug 16, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Aug 3, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Jul 28, 2023
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1.5 in (3 SSE Mountain, WI)
- Tue, Jul 25, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, Jun 3, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Aug 28, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Aug 8, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Jul 31, 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.
- Thu, May 12, 2022
Radar estimate anywhere in the county: 2 in or larger (hen egg)
Reported in the county- 1 in (2 E SURING, WI)
- 1 in (SPRUCE, WI)
- 1.5 in (MOUNTAIN, WI)
- Wed, May 11, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, May 10, 2022
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: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Jul 26, 2021
Radar estimate anywhere in the county: 2 in or larger (hen egg)
No hail reported in the county.
- Tue, Jul 6, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Jul 5, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, Jun 30, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Jun 24, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, May 5, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Apr 27, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (1 W MOUNTAIN, WI)
- Tue, Apr 6, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
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.