Dayton, OH · Storm history

Hail Reports in Dayton, Ohio — Last 90 Days

NOAA Storm Prediction Center logged 1 hail report within 25 miles of Dayton across 1 storm day, most recently on August 7, 2026. Source: SPC Local Storm Reports (preliminary, may be revised).

Data as of October 24, 2026 (last successful NOAA check). The newest report in the feed is from Oct 23, 2026. The 90-day log is SPC preliminary data. The county history (2017 to June 2026) is the NOAA Storm Events archive, 2014–June 2026; it has no storms after it ends.

  • 1.00 inlargest hail near the city, last 90 days (quarter size)
  • 12days with hail 1 in or larger in the county, 2014–June 2026
  • 69days with 58+ mph thunderstorm wind, 2014–June 2026
  • #142 of 209among the cities we cover, by hail days of 1 in or more

Has hail hit my Dayton roof since it was installed?

County-level hail reports for Dayton from the NOAA archive this page uses; a county report is not proof of damage at your Dayton address.

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Hail near Dayton in the last 90 days

  • 1.00 inLargest hail in 90 days (quarter size)
  • 1Hail day near Dayton
  • 1SPC report
  • August 7, 2026Most recent event

Around Dayton, the NOAA Storm Prediction Center logged 1 hail report within 25 miles between August 7 and August 7, 2026, spread over 1 storm day. That day brought stones of 1″ or more, and 1 of the 1 Dayton reports with coordinates fell within 10 miles of the city center. In a typical year Dayton sees about 4 hail-producing storms.

Dayton's storm-climate context

Dayton, Ohio experiences frequent thunderstorms and occasional hail during summer months, which can damage roofs, while heavy snow is less common but can still affect older roof structures. The region also faces extreme heat in the summer, leading to increased cooling costs and potential roofing issues.

The roofing market in Dayton is competitive with numerous local contractors, many of whom specialize in storm and hail damage repairs. It's advisable for homeowners to check insurance coverage before choosing a contractor, as some may offer discounts or partnerships with insurance companies. Additionally, it’s recommended to request multiple quotes from different contractors to ensure getting the best service at a fair price.

How close the hail came

Dayton's nearest hail report, one of 1, came 9.3 miles from the city center on August 7, 2026 (1.00″ at 3 ESE Miamisburg). August 7, 2026 was the heaviest day around Dayton, with 1 report and a top stone of 1.00″. Near Dayton, 1 of 1 hail day reached 1″ or larger.

Hail reports by distance from the Dayton city center, last 90 days
Distance from city centerReportsLargest
Within 5 miles0—
Within 10 miles11.00″
Within 25 miles11.00″

Distances are straight-line from the city center to each SPC report point; reports without coordinates are left out of the table.

Hail events near Dayton by date

August 7, 2026 1 report, hail up to 1.00″ (quarter size)

Time (UTC)Hail sizeLocationDistance from Dayton
1845 1.00″ 3 ESE Miamisburg, Montgomery County 9.3 mi

The Dayton tables above list preliminary Local Storm Reports from the NOAA Storm Prediction Center. Sizes are reported hailstone diameters; times are UTC. Reports can be added or corrected for about a day after each event. A quiet log does not mean no hail: small or unreported events happen. The closest report in this window landed 9.3 miles from Dayton's center.

View the 1 Dayton-area report on a map

On the Dayton map, circle positions are the NOAA SPC report coordinates; tap a circle for the date and hail size.

Hail size: < 1″ 1–1.75″ ≥ 2″ not recorded

How severe was it? The NWS yardstick, applied to Dayton's reports

  • 1 to 2 in (severe)1

The National Weather Service calls hail severe at 1″ (quarter size) and significant at 2″ (hen-egg size). Scoring Dayton's 1 area report (filed in Montgomery County) against that scale: 1 of the Dayton reports met the severe 1″+ criterion — the size at which asphalt shingles start taking granule loss and bruising that shows up as leaks a season later. At these sizes, damage on a Dayton roof is rarely visible from the ground, and homeowners policies typically cover it when it is documented promptly.

Hail history in Dayton: the long picture

County-level NOAA records for the county behind Dayton, 2014–June 2026. Each figure shows its source. Storms after the archive ends are not in these numbers. Ranks count from 1, the highest.

Dayton against the 209 cities we cover

  • #142of 209Days with hail 1 in or larger in Dayton: middle
  • #152of 209Days with hail 1.75 in or larger (golf ball) in Dayton: middle
  • #56of 209Days with 58+ mph thunderstorm wind in Dayton: middle
  • #61of 209Tornadoes in Dayton: middle
  • #3of 209Reported storm property damage in Dayton: top quarter
  • #6of 209Share of homes built before 1980 in Dayton: top quarter

Hail events by year

Hail events per year in the county, 2017 to 2025 10 2017 8 2018 2 2019 3 2020 11 2021 3 2022 2 2023 1 2024 5 2025
Hail events per year in the county, 2017 to 2025
201710
20188
20192
20203
202111
20223
20232
20241
20255

Years with no record show as 0. In its busiest full year (2021) Dayton's county logged 11 events; the whole span, 2017 to 2025, holds 45.

Source: NOAA Storm Events Database, county level, 2017–2025

Hail history at a glance

  • 45Hail events in the county, since 2017 (NOAA)
  • 1.75 inLargest hailstone on record
  • Apr 29, 2025Last recorded event in the archive

For Dayton's county, NOAA records a most severe stone of 1.75″ and 45 hail events since 2017, close to 5 every year. Set against that baseline, the 1 hail day near Dayton in the 90-day window above tracks close to the long-term average rate. Check your own Dayton address on the hail risk lookup.

Compared to the Ohio county median of 28 hail events since 2017, Dayton's county runs 1.6× above average.

Three ways a storm reaches a roof

Hail

  • 1 in or larger (quarter)12
  • 1.75 in or larger (golf ball)2

Dayton's county days with at least one report at that size. Largest stone: 1.75 in.

Source: NOAA Storm Events Database, 2014–June 2026

Thunderstorm wind

69 Dayton's county days with 58+ mph

58 mph is the NWS severe threshold. Strongest gust on record in Dayton's county: 75 mph on Mar 30, 2025.

Source: NOAA Storm Events Database, 2014–June 2026

Tornadoes

12 in Dayton's county

Strongest tornado in Dayton's county: EF4 on the Enhanced Fujita scale.

Source: NOAA Storm Events Database, 2014–June 2026

Costliest storm day

May 27, 2019

5 reports that day (4 tornado, 1 hail); reported property damage $501,550,000; county FIPS 39113, 2014–June 2026.

Source: NOAA Storm Events, 2014–June 2026

Peak storm month

June

In Dayton's county, 105 of 303 hail, wind and tornado reports (35%) fell in June.

Source: NOAA Storm Events, 2014–June 2026

Older homes

85.8% of Dayton homes built before 1980

About 60,000 of Dayton's 69,640 housing units (share times units, rounded). Median year built: 1951. Housing units, not roofs: many Dayton homes have been re-roofed since.

Source: Census ACS (Dayton city), 2019–2023
Year-by-year table with the largest stone
YearRecorded hail eventsLargest stone
2025 5 1.00″
2024 1 0.75″
2023 2 0.75″
2022 3 0.88″
2021 busiest largest stone 11 1.75″
2020 3 1.50″
2019 2 1.00″
2018 8 1.50″
2017 10 1.50″

NOAA Storm Events archive, Dayton's county. Years missing from the table have no record in the archive. * 2026 covers only January to June: NOAA's file ends there, so it is not counted as the worst year or in the yearly average.

2021 was the standout hail year in Dayton's county on both counts: the most recorded events (11) and the largest stone (1.75″).

In a market with repeat hail, impact-resistant Class 4 shingles often pay for themselves through insurer premium discounts — worth discussing with a Dayton roofer if a recent event tips you into a replacement.

Dayton, Ohio: Dayton Skyline - Sunset September 2022
Dayton, OH. Photo: Blervis, CC BY 4.0, via Wikimedia Commons.

Montgomery County fact sheet for Dayton homeowners

Housing age, federal disaster declarations and your state's claim deadlines in one place. All three come from public records, county level.

How old are the roofs? Homes in Montgomery County by decade built

Share of Montgomery County homes by decade built, percent 15.7% pre-1940 7.6% 1940s 17.0% 1950s 16.8% 1960s 16.7% 1970s 9.3% 1980s 7.5% 1990s 6.2% 2000s 2.8% 2010s 0.4% 2020+
Share of Montgomery County homes by decade built, percent
pre-194015.7%
1940s7.6%
1950s17.0%
1960s16.8%
1970s16.7%
1980s9.3%
1990s7.5%
2000s6.2%
2010s2.8%
2020+0.4%

252,475 homes, median built in 1966. 73.8% date from before 1980 and 3.2% from 2010 on; 62.3% are owner-occupied. The most common decade is the 1950s.

Source: U.S. Census Bureau, American Community Survey · data as of ACS 5-year

What to do if your roof was in the hail path

Hail-bruised asphalt shingles — the kind of damage to look for after a storm near Dayton; example photo, not a Dayton roof
What hail bruising on asphalt shingles looks like. Example photo, not a Dayton roof.
  1. Walk the ground, not the roof. 9.3 miles from the Dayton city center (3 ESE Miamisburg, August 7, 2026) is where the nearest report fell in the last 90 days. Look at your Dayton downspouts for granules and at gutters, vents and screens for dents.
  2. Document everything before any repair. The log's worst day near Dayton: August 7, 2026, 1 report, largest 1.00 in. Pair that date with your dated photos and a coin-for-scale shot to pin the loss to a storm.
  3. Have a roofer look before you decide. The single hail day near Dayton reached 1 inch or more. On a Dayton roof, bruised shingles and lost granules do not show from the ground; a roofer's written scope settles whether a claim exists.
  4. File by your policy's deadline; know the insurer's. 79 days ago: that is how long since the newest hail day near Dayton. Your window to report a Dayton loss sits in the policy; the insurer's answer clocks are state law, linked below.
  5. Bring the written scope to the adjuster. Hand over the scope in writing: an adjuster working a Dayton claim then has the contractor's numbers. Step-by-step: the roof insurance claim guide.

Insurer clocks for Dayton homeowners: rule text, quotes and links on the Ohio claim-deadlines page (checked 2026-10-09). Not legal advice.

Hail in Dayton — questions homeowners ask

When did hail last hit Dayton, OH?
The most recent NOAA hail report within 25 miles of Dayton is from August 7, 2026, with hail up to 1.00″.
How large was the hail near Dayton?
The largest hailstone reported near Dayton in the last 90 days measured 1.00″ — about quarter size. Dayton had 1 hail day of 1″ or more, the size where asphalt shingles start to bruise; the biggest came on August 7, 2026.
Does homeowners insurance cover hail damage in Dayton?
The latest hail day near Dayton was August 7, 2026, 79 days ago, a date a claim can point to. Standard homeowners policies generally cover sudden storm damage and not gradual wear. For a Dayton claim, document the damage before repairs, keep this NOAA log as proof of the August 7, 2026 event date, and read your own policy for its filing deadline: the policy sets that window, not a universal rule.
How often does hail hit the Dayton area?
In Dayton's county, NOAA's archive since 2017 shows 45 recorded hail events. Dayton averages about 5 a year, and its biggest stone on record measured 1.75″.
How close did hail get to Dayton in the last 90 days?
On August 7, 2026, 9.3 miles from the Dayton city center, 1.00 in. at 3 ESE Miamisburg: that is the nearest SPC report of the last 90 days.
How long does an insurer in Ohio have to respond to a hail claim?
Ohio sets the insurer's clocks by rule: it must acknowledge a claim within 15 calendar days and tell the homeowner whether it is accepted or denied within 21 calendar days. For Dayton homeowners, the deadlines to report and to sue come from the policy and state law. Not legal advice; rule text and links are on the claim-deadlines page, checked 2026-10-09.

Check your own ZIP in Dayton

The county figures above average over everything inside the county line. For a score tied to your Dayton address, run your ZIP through the hail risk lookup — Dayton ZIP codes include 45402, 45419, 45407, 45432, 45420.

Dayton neighborhoods — hail exposure varies by area

Hail paths track with storm cell movement, not city limits. If you're in Dayton Southgate, Carillon Park, Southwest Side, Montpelier or Englewood, check your specific street against the report locations above — distance from Dayton's center is listed for each report.

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More resources

Sources: NOAA Storm Prediction Center Local Storm Reports (last 90 days, preliminary) and the NOAA NCEI Storm Events Database (county of the city, 2014–June 2026); U.S. Census Bureau American Community Survey 5-year estimates (housing). The Storm Events archive used here ends in 2025, so storms between that date and the start of the 90-day log are not shown. How we collect data. Are you a roofer in Dayton? See how requests reach contractors.

How to cite this page

Free to quote with credit, under CC BY 4.0, no permission needed. The numbers are NOAA Storm Prediction Center preliminary reports: unverified, and not confirmed damage to any roof. This is not an official NOAA or NWS product.