Hail and tornadoes in Clay County, IA
Since January 2021, radar estimated hail somewhere in Clay County, IA on 77 days. The biggest estimate: 3 in or larger (teacup), on Mon, May 20, 2024. 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 132 hail reports in Clay County, IA on 65 days, 10 of them 2 inches or larger. The largest: 4.25 in, near Spencer, on Fri, May 21, 2004.
By decade: 2000s: 61 · 2010s: 45 · 2020s: 26
Tornadoes since 1950
29 tornadoes have touched Clay County, IA since 1950, 1 of them rated F3/EF3 or stronger.
Strongest
- Fri, Jun 11, 2004 · F3 · 6 mi long, 400 yd wide · near Webb
- Wed, Jun 11, 2008 · EF2 · 13.08 mi long, 100 yd wide · near Royal
- Fri, Jun 11, 2004 · F2 · 5.5 mi long, 200 yd wide · near Everly
- Fri, Jun 11, 2004 · F1 · 1 mi long, 100 yd wide · near Dickens
- Fri, Jun 11, 2004 · F1 · 2 mi long, 100 yd wide · near Everly
Most recent
- Sat, Jul 4, 2026 · EFU · 0.14 mi long, 10 yd wide · near Cornell
- Sat, Jul 4, 2026 · EFU · 0.09 mi long, 10 yd wide · near Everly
- Sun, May 17, 2026 · EF0 · 1.21 mi long, 30 yd wide · near Dickens
- Sun, May 17, 2026 · EFU · 4 mi long, 75 yd wide · near Gillett Grove
- Sun, May 17, 2026 · EFU · 0.9 mi long, 20 yd wide · near Royal
- Sun, May 17, 2026 · EFU · 1.19 mi long, 20 yd wide · near Royal
- Mon, Apr 13, 2026 · EF0 · 1.84 mi long, 50 yd wide · near Webb
- Thu, Jun 19, 2014 · EF0 · 0.15 mi long, 50 yd wide · near Spencer
- Wed, Jun 18, 2014 · EF0 · 0.2 mi long, 50 yd wide · near Royal
- Fri, Oct 4, 2013 · EF0 · 0.71 mi long, 100 yd wide · near Maclay
By decade: 2000s: 16 · 2010s: 6 · 2020s: 7
Still loading: NOAA's record goes back to 1950, and 2003 onward is in so far.
Every hail day since January 2021
- Sun, Sep 6, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Sep 1, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, Aug 8, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Sat, Jul 4, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, Jul 1, 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: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Jun 29, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
Reported in the county- 1.5 in (Webb, IA)
- Sun, Jun 28, 2026
Radar estimate anywhere in the county: 2 in or larger (hen egg)
Reported in the county- 1.5 in (Webb, IA)
- Sat, Jun 27, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sun, Jun 7, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, May 25, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, May 17, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Sat, May 16, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, May 15, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Apr 23, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Apr 13, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1.5 in (5 NE Webb, IA)
- 1 in (2 NW Peterson, IA)
- Mon, Sep 22, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- 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.
- Tue, Aug 5, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Jul 29, 2025
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
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.
- Wed, Jul 23, 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: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jul 9, 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: 2 in or larger (hen egg)
No hail reported in the county.
- Sat, Jun 14, 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: 1.5 in or larger (ping-pong ball)
Reported in the county- 1.5 in (Dickens, IA)
- 1 in (Fostoria, IA)
- Thu, Apr 17, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, Jul 6, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Jul 4, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Jul 1, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Jun 21, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (2 N Everly, IA)
- 1 in (6 ENE Dickens, IA)
- Mon, Jun 17, 2024
Radar estimate anywhere in the county: 2 in or larger (hen egg)
Reported in the county- 1 in (Spencer, IA)
- Sun, Jun 16, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jun 12, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, May 23, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1.75 in (Spencer, IA)
- Mon, May 20, 2024
Radar estimate anywhere in the county: 3 in or larger (teacup)
Reported in the county- 1.5 in (Greenville, IA)
- 2 in (Royal, IA)
- 3 in (3 W Royal, IA)
- 1.5 in (Webb, IA)
- Sun, May 12, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Oct 23, 2023
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1 in (1 SSE Spencer, IA)
- Thu, Sep 21, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Aug 22, 2023
Radar estimate anywhere in the county: 2 in or larger (hen egg)
No hail reported in the county.
- Fri, Aug 11, 2023
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Thu, Jul 27, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jul 26, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Jul 25, 2023
Radar estimate anywhere in the county: 2 in or larger (hen egg)
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: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Jul 10, 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: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, May 8, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Jan 6, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Aug 24, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Aug 18, 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: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Jun 24, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, May 30, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, May 28, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, May 19, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, May 12, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, May 11, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Apr 12, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1.25 in (2 N LINN GROVE, IA)
- Mon, Jan 10, 2022
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Wed, Dec 15, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Sep 10, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Aug 30, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Aug 28, 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: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Aug 2, 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: 1 in or larger (quarter)
No hail reported in the county.
- Sun, Jul 25, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, Jul 24, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jul 14, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Jul 5, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Jun 19, 2021
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Wed, Jun 16, 2021
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Mon, Apr 26, 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.