Hail History

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Hail history for Altoona, WI

Last hail within 10 milesJun 19, 20261.25 in (half dollar)
Hail days, last 12 months1
Largest hail since 20064 in (grapefruit)May 15, 2025
Hail days since 200629
Days with hail 1 inch or larger19
Tornadoes within 10 miles1
Damaging wind reports within 10 miles57

Hail has been reported within 10 miles of Altoona on 29 days since 2006. The largest stones measured 4 in (grapefruit) on May 15, 2025. Hail is most common here in May and June.

Recent hail near Altoona

DateHail sizeWhereSource
Jun 19, 20261.25 in
half dollar
Fall Creek, Altoona
2 hail reports · closest 3 mi from Altoona
NOAA Storm Events
May 15, 20254 in
grapefruit
Eau Claire, Altoona, Cleghorn
6 hail reports · closest near the center of Altoona
NOAA Storm Events

One row per day: the largest hail reported that day within 10 miles, the places and the number of reports.

Hail days near Altoona by year

206207308109104112122132141511611741819220121222324125126

When hail season peaks near Altoona

Of the 29 hail days since 2006, most fell in May (10) and June (5).

JanFebMar3Apr10May5Jun4Jul3Aug3Sep1OctNovDec

Largest hail storms near Altoona

May 15, 2025 · 4 in (grapefruit) · Eau Claire (1 mi from Altoona)

National Weather Service description (English): Several reports of large hail fell near US-35 between Eau Claire and Altoona. The largest report was up to 4 inches in diameter. There was also a report of damage to siding due to the large hail.

Oct 3, 2006 · 1.25 in (half dollar) · Cleghorn (8 mi from Altoona)

Apr 24, 2009 · 1.25 in (half dollar) · Altoona (4 mi from Altoona)

May 25, 2020 · 1.25 in (half dollar) · Eau Claire (5 mi from Altoona)

Jun 19, 2026 · 1.25 in (half dollar) · Fall Creek (9 mi from Altoona)

Tornadoes within 10 miles of Altoona

DateRatingWherePath
Dec 15, 2021EF0Bateman
10 mi from Altoona
5.3 mi long, 75 yd wide

Damaging thunderstorm winds near Altoona

57 reports of damaging thunderstorm wind within 10 miles of Altoona since 2006, on 40 days. The strongest measured gust was 67 mph on Jul 11, 2022.

DateStrongest gustWhereSource
Jun 10, 202658 mph, estimatedAltoona
1 wind report
NOAA Storm Events
Jul 28, 202560 mph, estimatedEau Claire
1 wind report
NOAA Storm Events
Aug 29, 202464 mph, estimatedChippewa Falls, Eau Claire
2 wind reports
NOAA Storm Events
Aug 26, 202463 mph, measuredEau Claire, Eau Claire Airport
2 wind reports
NOAA Storm Events
May 21, 202470 mph, estimatedBrackett, Chippewa Falls
2 wind reports
NOAA Storm Events
Jul 3, 202358 mph, estimatedEau Claire
1 wind report
NOAA Storm Events
Aug 3, 202260 mph, estimatedEau Claire
1 wind report
NOAA Storm Events
Jul 11, 202267 mph, measuredEau Claire Airport
1 wind report
NOAA Storm Events
May 31, 202260 mph, estimatedChippewa Falls, Altoona
2 wind reports
NOAA Storm Events
Aug 29, 202159 mph, measuredEau Claire Airport
1 wind report
NOAA Storm Events

Severe thunderstorm wind means gusts of 58 mph or more, or wind that caused damage. Measured gusts come from weather stations; estimated ones from spotters and damage surveys.

Filing a roof or car hail claim?

Insurers ask for the date of loss. The dates on this page are when hail was reported near Altoona; hail can hit one street and miss the next, so a report is not proof of damage at your address. A licensed roofer or your insurance adjuster can inspect the roof. Many policies set a time limit for filing a claim — check yours.

Nearby cities

Data: NOAA NCEI Storm Events Database (final records through Jun 30, 2026) and National Weather Service Local Storm Reports (preliminary, since then). Distances are measured from the center of Altoona.

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