Hail and tornadoes in Bremer County, IA
Since January 2021, radar estimated hail somewhere in Bremer County, IA on 40 days. The biggest estimate: 2 in or larger (hen egg), on Fri, Aug 7, 2026. 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 89 hail reports in Bremer County, IA on 27 days, 8 of them 2 inches or larger. The largest: 2.75 in, near Waverly Muni Airport, on Fri, Apr 18, 2025.
By decade: 2000s: 16 · 2010s: 56 · 2020s: 17
Tornadoes since 1950
9 tornadoes have touched Bremer County, IA since 1950, none of them rated F3/EF3 or stronger.
Strongest
- Wed, Jul 14, 2021 · EF2 · 9.75 mi long, 420 yd wide · near Babcock
- Wed, Jun 23, 2010 · EF1 · 0.29 mi long, 35 yd wide · near Tripoli
- Wed, Jul 14, 2021 · EF0 · 2.5 mi long, 150 yd wide · near Buck Creek
- Tue, Oct 9, 2018 · EF0 · 0.39 mi long, 50 yd wide · near Janesville
- Sun, Aug 31, 2014 · EF0 · 0.76 mi long, 85 yd wide · near Janesville
Most recent
- Wed, Jul 14, 2021 · EF0 · 2.5 mi long, 150 yd wide · near Buck Creek
- Wed, Jul 14, 2021 · EF2 · 9.75 mi long, 420 yd wide · near Babcock
- Tue, Oct 9, 2018 · EF0 · 0.39 mi long, 50 yd wide · near Janesville
- Sun, Aug 31, 2014 · EF0 · 5.41 mi long, 100 yd wide · near Knittel
- Sun, Aug 31, 2014 · EF0 · 0.76 mi long, 85 yd wide · near Janesville
- Sun, Aug 31, 2014 · EF0 · 1.89 mi long, 70 yd wide · near Babcock
- Mon, Jun 16, 2014 · EF0 · 2 mi long, 75 yd wide · near Tripoli
- Sun, May 22, 2011 · EF0 · 0.1 mi long, 30 yd wide · near Tripoli
- Wed, Jun 23, 2010 · EF1 · 0.29 mi long, 35 yd wide · near Tripoli
By decade: 2010s: 7 · 2020s: 2
Still loading: NOAA's record goes back to 1950, and 2003 onward is in so far.
Every hail day since January 2021
- Mon, Aug 10, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Aug 7, 2026
Radar estimate anywhere in the county: 2 in or larger (hen egg)
No hail reported in the county.
- Thu, Jul 2, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Wed, Jun 10, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, May 16, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Fri, Apr 17, 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 in or larger (quarter)
Reported in the county- 1 in (Tripoli, IA)
- Mon, Sep 22, 2025
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1 in (Denver, IA)
- Tue, Sep 16, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Aug 15, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Jul 28, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Jun 16, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jun 11, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
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 (Tripoli, IA)
- 2.75 in (2 NW Waverly, IA)
- 1.5 in (Plainfield, IA)
- Tue, Jul 23, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
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.
- Wed, Jul 10, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, May 27, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
Reported in the county- 1 in (Waverly, IA)
- Thu, May 23, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
Reported in the county- 1 in (Readlyn, IA)
- Mon, May 20, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, Apr 27, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Aug 10, 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 in or larger (quarter)
Reported in the county- 1.25 in (3 NW Readlyn, IA)
- 2.75 in (3 N Denver, IA)
- Sat, Jul 15, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Jul 14, 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: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Jul 11, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Jul 3, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Jun 24, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (1 WSW Waverly, IA)
- Sun, May 7, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (2 ESE DENVER, IA)
- Fri, Mar 31, 2023Reported in the county
- 1 in (WAVERLY, IA)
- Tue, Jul 5, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Jul 4, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jun 15, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, May 9, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Aug 24, 2021
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Tue, Aug 10, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (2 SW FREDERIKA, IA)
- Wed, Jul 14, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Jul 13, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, May 15, 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.