Hail and tornadoes in Jefferson County, IA

Since January 2021, radar estimated hail somewhere in Jefferson County, IA on 59 days. The biggest estimate: 3 in or larger (teacup), on Fri, Aug 7, 2026. 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.

Days with hail

since January 2021

1 inch or larger

days, estimated or reported

Largest radar estimate

3+ in

Fri, Aug 7, 2026

Largest reported

2 in

Tue, Apr 14, 2026

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.

Radar-estimated hail on Fri, Aug 7, 2026 around the place, with the hail reported that day — Fri, Aug 7, 2026: radar-estimated hail around Jefferson County, IA, with the hail reported that day.

Hail on record since 1955

NOAA's Storm Events database lists 75 hail reports in Jefferson County, IA on 39 days, 1 of them 2 inches or larger. The largest: 2 in, near Packwood, on Tue, Apr 14, 2026.

By decade: 2000s: 27 · 2010s: 35 · 2020s: 13

Tornadoes since 1950

5 tornadoes have touched Jefferson County, IA since 1950, none of them rated F3/EF3 or stronger.

Every one

Wed, Jun 17, 2026 · EF1 · 1.98 mi long, 50 yd wide · near Pekin
Wed, May 17, 2017 · EF1 · 1.27 mi long, 25 yd wide · near Pleasant Plain
Sun, Apr 2, 2006 · F1 · 0.3 mi long, 50 yd wide · near Fairfield
Sat, May 10, 2003 · F0 · 2.4 mi long, 100 yd wide · near Lockridge
Sat, May 10, 2003 · F0 · 5 mi long, 100 yd wide · near Glasgow

By decade: 2000s: 3 · 2010s: 1 · 2020s: 1

Still loading: NOAA's record goes back to 1950, and 2003 onward is in so far.

Every hail day since January 2021

Fri, Aug 7, 2026
Radar estimate anywhere in the county: 3 in or larger (teacup)
Reported in the county
- 1.75 in (Fairfield, IA)
- 1.75 in (Packwood, IA)
Mon, Jul 20, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
Fri, Jul 3, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
Wed, Jun 17, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
Thu, Jun 11, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
Thu, Apr 23, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
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 (Packwood, IA)
Thu, Apr 2, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
Tue, Mar 31, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
Tue, Mar 10, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county
- 1 in (1 ENE Fairfield Municip, IA)
- 1.5 in (Batavia, IA)
Mon, Sep 15, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
Tue, Jul 29, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
Sat, Jul 19, 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 in or larger (quarter)
No hail reported in the county.
Thu, Jul 10, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
Tue, Jun 10, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
Tue, Apr 22, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
Wed, Oct 30, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
Thu, Oct 24, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
Thu, Oct 3, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
Thu, Aug 15, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
Wed, Jul 31, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
Tue, Jul 30, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
Mon, Jul 29, 2024
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
Sun, Jul 28, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
Tue, Jul 23, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
Mon, Jul 15, 2024
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
Tue, Jul 2, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
Tue, Jun 25, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
Thu, Jun 13, 2024
Radar estimate anywhere in the county: 2 in or larger (hen egg)
No hail reported in the county.
Thu, May 23, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
Sun, Mar 31, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
Fri, Mar 29, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
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.
Thu, Aug 10, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
Mon, Jul 24, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
Mon, Jul 17, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
Thu, Jun 29, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
Sat, Jun 24, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
Sat, May 13, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
Sun, May 7, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county
- 1.75 in (3 NNE FAIRFIELD MUNICIP, IA)
Sat, May 6, 2023
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county
- 1.25 in (2 SW FAIRFIELD, IA)
Tue, Apr 4, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
Fri, Mar 31, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
Sun, Sep 18, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
Fri, Sep 2, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
Mon, Aug 29, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
Mon, Aug 1, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
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.
Mon, Jun 13, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
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.
Wed, Oct 13, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
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: 0.75 in or larger (penny)
No hail reported in the county.
Fri, Aug 20, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
Thu, Aug 12, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
Fri, Jul 9, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
Tue, Jun 22, 2021
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county
- 1 in (LIBERTYVILLE, IA)
Fri, Jun 18, 2021
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.

Check your own address →Weather in Jefferson County, IA now →Get warned before the next storm →

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.