Iowa · June 20, 2025

Iowa hail map — June 20, 2025

NOAA radar detected hail of an inch or more over 1 Iowa city on June 20, 2025. The largest stones — 1.00″, quarter size — fell over Mason City.

Hail swath map for Mason City, IA on June 20, 2025 showing 1.00 inch hail.
Swath over Mason City on June 20, 2025 — 1.00″ hail. Each city below has its own map for this storm.
Cities hit
1
in Iowa
Largest stone
1.00″
quarter size
Impact rating
3/10
from stone size

Sizes come from NOAA MRMS radar (MESH), which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.

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Iowa cities hit on June 20, 2025

Mason City, IA1.00″ · quarter

What people on the ground measured in Iowa on June 20, 2025

4 reports filed with the National Weather Service — 1 from trained spotters or officials. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.

  • 1.75″ golf ball size Public
    Leland, IA6:10 AM CDTWinnebago County

    Delayed report - golf ball sized hail in Leland.

  • 1.00″ quarter size Trained Spotter
    Fertile, IA6:15 AM CDTWorth County

    Delayed report - quarter sized hail and strong winds. No significant damage.

  • 1.00″ quarter size Public
    3 SE Hanlontown, IA6:27 AM CDTCerro Gordo County

    Report from mPING: Quarter (1.00 in.).

  • 0.75″ penny size Public
    2 N Ames, IA7:08 AM CDTStory County

    Report from mPING: Dime (0.75 in.).

Reports come from the National Weather Service Local Storm Report feed, ingested every 15 minutes. A report records where the observer was, not the full extent of the swath — treat it as evidence about the storm, not about any one roof.

Other states hit on June 20, 2025

Florida6 cities · 1.00″New York2 cities · 1.00″
The full US hail map for June 20, 2025 →

Other Iowa hail days

August 12, 20262 cities · 1.00″August 7, 20262 cities · 1.00″July 27, 20263 cities · 1.00″July 21, 20261 city · 1.00″July 20, 20267 cities · 1.50″July 4, 20261 city · 1.00″July 3, 20263 cities · 1.00″July 2, 20267 cities · 1.00″July 1, 20261 city · 1.50″June 30, 20261 city · 1.00″June 28, 20262 cities · 1.00″June 17, 20261 city · 1.00″
Every hail day across Iowa →
FAQ

Iowa hail on June 20, 2025

NOAA radar put hail of an inch or more over 1 Iowa city that day. The largest stones — 1.00 inches, quarter size — were over Mason City. Every city hit is listed above with its own stone size.

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