Hail and tornadoes in Clay County, SD

Since January 2021, radar estimated hail somewhere in Clay County, SD on 70 days. The biggest estimate: 3 in or larger (teacup), on Mon, Jun 2, 2025. 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.

Days with hail
71
since January 2021
1 inch or larger
43
days, estimated or reported
Largest radar estimate
3+ in
Mon, Jun 2, 2025
Largest reported
1.5 in
Tue, Jul 11, 2023

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 Mon, Jun 2, 2025 around the place, with the hail reported that day
Mon, Jun 2, 2025: radar-estimated hail around Clay County, SD, with the hail reported that day.

Hail on record since 1955

NOAA's Storm Events database lists 129 hail reports in Clay County, SD on 66 days, 3 of them 2 inches or larger. The largest: 3 in, near Vermillion, on Wed, Sep 22, 2010.

By decade: 2000s: 74 · 2010s: 31 · 2020s: 24

Tornadoes since 1950

12 tornadoes have touched Clay County, SD since 1950, none of them rated F3/EF3 or stronger.

Strongest

  • Thu, May 29, 2008 · EF1 · 2.03 mi long, 100 yd wide · near Wakonda
  • Thu, May 29, 2008 · EF1 · 1.91 mi long, 100 yd wide · near Wakonda
  • Tue, Jun 24, 2003 · F1 · 1.5 mi long, 200 yd wide · near Wakonda
  • Sat, May 29, 2004 · F0 · 0.1 mi long, 50 yd wide · near Dalesburg
  • Tue, Jun 24, 2003 · F0 · 0.2 mi long, 50 yd wide · near Vermillion

Most recent

  • Sat, May 15, 2021 · EFU · 1.29 mi long, 25 yd wide · near Wakonda
  • Thu, May 29, 2008 · EF1 · 1.91 mi long, 100 yd wide · near Wakonda
  • Thu, May 29, 2008 · EF1 · 2.03 mi long, 100 yd wide · near Wakonda
  • Sat, May 29, 2004 · F0 · 0.1 mi long, 50 yd wide · near Dalesburg
  • Tue, Jun 24, 2003 · F0 · 0.5 mi long, 50 yd wide · near Wakonda
  • Tue, Jun 24, 2003 · F1 · 1.5 mi long, 200 yd wide · near Wakonda
  • Tue, Jun 24, 2003 · F0 · 2 mi long, 100 yd wide · near Wakonda
  • Tue, Jun 24, 2003 · F0 · 1 mi long, 100 yd wide · near Wakonda
  • Tue, Jun 24, 2003 · F0 · 0.7 mi long, 100 yd wide · near Dalesburg
  • Tue, Jun 24, 2003 · F0 · 0.1 mi long, 50 yd wide · near Vermillion

By decade: 2000s: 11 · 2020s: 1

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

Every hail day since January 2021

  • Thu, Oct 8, 2026

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    No hail reported in the county.

  • Fri, Sep 11, 2026

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Tue, Sep 1, 2026

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    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.

  • Mon, Aug 3, 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: 0.75 in or larger (penny)

    No hail reported in the county.

  • Mon, Jun 29, 2026

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sun, May 31, 2026

    Radar estimate anywhere in the county: 2 in or larger (hen egg)

    No hail reported in the county.

  • Sun, May 24, 2026

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Mon, May 18, 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.

  • Tue, Jul 29, 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: 1 in or larger (quarter)

    No hail reported in the county.

  • Mon, Jul 7, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Wed, Jul 2, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sat, Jun 28, 2025

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Fri, Jun 27, 2025

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Tue, Jun 17, 2025

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    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.

  • Sun, Jun 15, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Sat, Jun 14, 2025

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Mon, Jun 2, 2025

    Radar estimate anywhere in the county: 3 in or larger (teacup)

    Reported in the county
    • 1 in (Vermillion, SD)
  • Mon, May 19, 2025

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Mon, Apr 28, 2025

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    Reported in the county
    • 1 in (3 ESE Gayville, SD)
  • Thu, Apr 17, 2025

    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.

  • Mon, Jul 29, 2024

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    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.

  • Mon, May 20, 2024

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    Reported in the county
    • 1 in (8 NE Meckling, SD)
  • Thu, Sep 21, 2023

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Wed, Sep 20, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Mon, Sep 18, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Fri, Sep 15, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Tue, Aug 8, 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: 1 in or larger (quarter)

    No hail reported in the county.

  • Sun, Jul 23, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sat, Jul 22, 2023
    Reported in the county
    • 1 in (3 SSE Centerville, SD)
  • Tue, Jul 11, 2023

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    Reported in the county
    • 1.5 in (Wakonda, SD)
  • Mon, Jul 10, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Tue, Jul 4, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Mon, Jul 3, 2023

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    Reported in the county
    • 1.5 in (3 ENE Wakonda, SD)
  • Sat, Jun 24, 2023

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Fri, Jun 23, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Thu, May 11, 2023

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    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.

  • Thu, May 4, 2023

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Wed, Aug 31, 2022

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Sat, Aug 6, 2022

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Mon, Aug 1, 2022

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Tue, Jul 26, 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: 1 in or larger (quarter)

    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.

  • Mon, May 30, 2022

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    Reported in the county
    • 1.5 in (WAKONDA, SD)
  • Sun, May 29, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    Reported in the county
    • 1 in (4 SW MECKLING, SD)
  • Thu, May 12, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    Reported in the county
    • 1 in (1 ENE VERMILLION, SD)
  • Wed, May 11, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Mon, Apr 18, 2022

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Mon, Jan 10, 2022

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Sun, Sep 19, 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: 1 in or larger (quarter)

    No hail reported in the county.

  • Wed, Aug 25, 2021

    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: 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.

  • Wed, Aug 11, 2021

    Radar estimate anywhere in the county: 1 in or larger (quarter)

    No hail reported in the county.

  • Thu, Aug 5, 2021

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    No hail reported in the county.

  • Sun, Jul 25, 2021

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Thu, Jul 8, 2021

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    Reported in the county
    • 1 in (6 SSE CENTERVILLE, SD)
  • Tue, Jul 6, 2021

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Tue, Jun 22, 2021

    Radar estimate anywhere in the county: 0.75 in or larger (penny)

    No hail reported in the county.

  • Fri, Jun 18, 2021

    Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)

    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.