Ohio Storm Data: Hail & Wind History Since 2010
Deduplicated storm activity for Ohio, fused from NWS warnings, storm reports, official records, and FEMA declarations.
Latest Ohio hail and wind storms
- Last reported hail in Ohio (0.75 in.+, screening): September 3, 2026 — 1.75 in. reported at Lakemore (Summit County), SPC storm report.
- 2026 so far in Ohio: 27 hail days and 60 wind days statewide (days with a storm report or station gust at the screening thresholds; warnings alone never count).
| Date | Largest reported hail | Strongest gust | City pages hit |
|---|---|---|---|
| September 20, 2026 | — | 51 mph measured | — |
| September 16, 2026 | — | 47 mph measured | Dayton, Springfield |
| September 5, 2026 | — | 54 mph measured | Cincinnati, Dayton, Springfield |
| September 4, 2026 | — | 54 mph measured | Cincinnati, Dayton, Springfield |
| September 3, 2026 | 1.75 in. reported | 62 mph measured | Cleveland, Toledo, Akron, Canton, Parma +2 more |
| September 2, 2026 | — | 56 mph reported | — |
| August 23, 2026 | 1.00 in. reported | — | — |
| August 22, 2026 | 1.75 in. reported | 52 mph measured | Cleveland, Toledo, Akron, Parma, Lorain +1 more |
| August 21, 2026 | — | 53 mph measured | Cleveland, Parma, Lorain, Elyria |
| August 19, 2026 | — | 53 mph measured | Cleveland, Parma, Lorain, Elyria |
Ohio storm facts
- StormAuditor's analysis of NOAA and National Weather Service records found 6,370 deduplicated storm events (wind, hail, tornado, and flood; NWS warning products included) in Ohio in the 12 months ending October 21, 2026.
- Storm activity touched 88 of 88 Ohio counties over that period.
- The most impacted county in Ohio was Washington, with 151 events.
- The busiest day by event count in Ohio was August 11, 2026, with 278 events.
Ohio storm activity at a glance (last 12 months)
StormAuditor's consolidated public record currently shows 6,370 storm events impacting 88 of Ohio's 88 counties in the trailing 12 months: 2,628 wind events, 1,969 hail events, 229 tornado events, 1,544 flood events. Every count includes NWS warnings as well as observed reports, so tornado events mean tornado warnings and reports, not confirmed tornadoes.
Events are fused from National Weather Service warnings and Special Weather Statements, observed Local Storm Reports, official NCEI storm records, and FEMA disaster declarations, then consolidated into a single event table under the published methodology.
Wind covers thunderstorm and non-thunderstorm wind alike, so these counts measure something different from the NCEI entry counts in the history section below; the two are not comparable year to year. State totals also count NWS Special Weather Statements (radar-indicated hail or gusts below warning level); city pages leave those out.
Busiest days in Ohio by event count
Ranked by the number of 12-month events, NWS warnings included, so a day with many warnings can outrank a day with larger hail.
- August 11, 2026 — 278 events incl. warnings (flood, hail, tornado, wind)
- March 22, 2026 — 248 events incl. warnings (hail, wind)
- March 26, 2026 — 235 events incl. warnings (hail, tornado, wind)
- July 21, 2026 — 190 events incl. warnings (flood, hail, tornado, wind)
- September 3, 2026 — 181 events incl. warnings (flood, hail, tornado, wind)
Most impacted counties
Events of every type for each county — wind, hail, tornado and flood, NWS warnings and Special Weather Statements included. City pages count wind and hail events only, so a county number on a city page is never higher than the number here.
- Washington — 151 events
- Franklin — 143 events
- Athens — 127 events
- Perry — 125 events
- Cuyahoga — 112 events
- Montgomery — 109 events
- Morgan — 109 events
- Noble — 107 events
Additional activity recorded under other NWS area names (forecast zones, tribal lands, and former census areas): Ashtabula Lakeshore (2).
How these numbers are counted
The storm numbers on this page are counted in four different ways, plus the free address check. Each answers a different question with its own size cutoffs, area and time span, so compare numbers within one group, not across groups.
- Storm days (latest hail and wind): A day in the last 12 months when at least one report anywhere in Ohio showed hail 0.75 in. or larger or wind of 45 mph or more (StormAuditor screening thresholds). Reports are NWS storm reports from spotters, the public and officials, plus weather-station gusts, which count from 50 mph. A warning on its own never makes a storm day. The "City pages hit" column and each city's last reported hail apply the same rule within 25 miles of the city. The statewide columns count reports inside Ohio only. City pages count reports within 25 miles of each city, which can reach into a neighboring state; those values name the other state, so a border city's value for a day can be higher than the Ohio value.
- Storm-date pages (NWS severe): A storm-date page is published only when at least one report or station gust within 25 miles of a city met the National Weather Service severe criteria (hail 1.00 in. or larger, or wind 58 mph or more), at least two separate observations were logged, and the day ranks among the most significant. A storm report that relays an airport weather station's reading (the same station, the same gust and the same time) counts once, as the station reading. Not every storm day gets a page; when one does, the page and the storm-day table show the same largest hail and strongest gust.
- Events (12-month counts): Events count the Ohio storm log: NWS warnings and Special Weather Statements (a lower-level NWS alert), storm reports (wind 50 mph+, hail 0.75 in.+), station gusts, NCEI entries and FEMA disaster declarations, for each county affected, floods included. One event is one place on one day, counted separately for each type (wind, hail, tornado, flood). A weather station or storm-report point counts once a day, at that day's highest reading, however many readings it filed; a place with hail and wind on the same day is two events. NWS warnings and Special Weather Statements count once per county per day, and NCEI entries and FEMA declarations once per place per day. A storm report that relays an airport weather station's reading (the same station, the same gust and the same time) counts once, as the station reading. The same report arriving through another feed (SPC or NCEI) is one record. The most impacted counties list uses this count. City pages count only wind and hail within 25 miles and leave out floods and Special Weather Statements, so city counts do not add up to the state total, and a city page's county count is a wind-and-hail count that is never higher than the same county's number here.
- NOAA history (since 2010): The official NOAA storm record (NCEI Storm Events) in Ohio from January 1, 2010 to the day before the 12-month window starts: hail 0.50 in.+, thunderstorm wind 40 mph+ and tornadoes. It is a separate, older record with its own "storm days" (days with any entry), so its counts are not compared with the 12-month numbers.
- Free Report Snapshot: A free YES/NO estimate for one address, from radar and wind analysis at the property rather than area reports, at the same screening thresholds: hail 0.75 in. or wind 45 mph.
Full method: Methodology and Data Sources.
Ohio hail and wind history in NOAA NCEI records, 2010–Oct. 2025
This section covers January 1, 2010 through October 20, 2025. Storms from October 21, 2025 on are in the 12-month summary above, so no date is counted in both.
NOAA's Storm Events Database holds 16,946 NCEI Storm Events entries in Ohio for this period, on 870 separate storm days. Wind is the more common entry — 12,018 thunderstorm wind reports to 4,225 hail reports.
The largest hail in these records for Ohio was 5.00 in. (larger than softball size), reported on May 1, 2012 in Ross County. Hail of 2 inches or more appears in 15 different years of this record, the latest being 2025 through Oct. 20. Measured thunderstorm gusts topped out at 105 mph (Portage County, November 5, 2017). NCEI also lists 703 tornado entries in Ohio — one entry per county a tornado crossed.
Hail peaks in May (27% of all hail reports); thunderstorm wind peaks in June. December through February accounts for 39 storm days.
Storm days ranged from 38 in 2021 to 74 in 2018. Across 2022–2024, Ohio averaged 52 storm days a year, below the 15-year average of 55.
- Average: 55 storm days a year (2010–2024)
- May and June: 45% of all hail reports
- Most hail reports in one year: 731 in 2011
- Hail of 1 in. or larger reported in every full year, 2010–2024
| Year | Hail reports | Thunderstorm wind reports | Tornado entries | Storm days | Largest hail | Strongest measured gust |
|---|---|---|---|---|---|---|
| 2010 | 338 | 652 | 51 | 47 | 2.50 in. | 81 mph |
| 2011 | 731 | 806 | 40 | 72 | 3.00 in. | 79 mph |
| 2012 | 509 | 712 | 15 | 55 | 5.00 in. | 89 mph |
| 2013 | 289 | 838 | 37 | 53 | 2.50 in. | 86 mph |
| 2014 | 300 | 325 | 21 | 50 | 3.00 in. | 75 mph |
| 2015 | 165 | 536 | 7 | 44 | 2.75 in. | 82 mph |
| 2016 | 134 | 381 | 26 | 55 | 2.50 in. | 81 mph |
| 2017 | 228 | 618 | 44 | 62 | 2.50 in. | 105 mph |
| 2018 | 122 | 491 | 19 | 74 | 1.75 in. | 76 mph |
| 2019 | 205 | 891 | 58 | 65 | 3.00 in. | 72 mph |
| 2020 | 208 | 899 | 24 | 56 | 2.50 in. | 76 mph |
| 2021 | 94 | 866 | 48 | 38 | 2.50 in. | 74 mph |
| 2022 | 238 | 1,416 | 66 | 49 | 2.75 in. | 83 mph |
| 2023 | 294 | 1,242 | 124 | 42 | 3.50 in. | 81 mph |
| 2024 | 194 | 639 | 90 | 64 | 3.00 in. | 74 mph |
| 2025 through Oct. 20 | 176 | 706 | 33 | 44 | 3.00 in. | 76 mph |
Counties with the most NCEI storm reports, 2010–Oct. 2025
| County | All entries | Hail | Thunderstorm wind |
|---|---|---|---|
| Franklin County | 509 | 167 | 328 |
| Cuyahoga County | 489 | 137 | 343 |
| Montgomery County | 481 | 132 | 334 |
| Hamilton County | 411 | 129 | 278 |
| Tuscarawas County | 357 | 99 | 253 |
| Trumbull County | 335 | 84 | 242 |
| Warren County | 332 | 71 | 244 |
| Clinton County | 325 | 65 | 249 |
| Summit County | 321 | 102 | 213 |
| Clermont County | 319 | 66 | 239 |
Download this history: CSV · JSON at https://www.stormauditor.com/downloads/storm-history/oh.json (free, open license, cite StormAuditor).
Source: NOAA NCEI Storm Events Database (thunderstorm wind, hail, and tornado entries; hail 0.50 in. or larger, wind 40 mph or more; wind converted from knots).
Ohio storm history questions, 2010–Oct. 2025
What is the largest hail reported in Ohio, 2010–Oct. 2025?
5.00 in., larger than softball size, reported on May 1, 2012 in Ross County, per NCEI. Hail of 2 inches or more appears in 15 years of this record in all, most recently 2023, 2024 and 2025 through Oct. 20.
What was Ohio's most active storm year, 2010–Oct. 2025?
2018, with 74 storm days (122 hail reports, 491 thunderstorm wind reports, 19 tornado entries). The 15-year average is 55 storm days.
How often does Ohio get hail?
NCEI's records average 270 hail reports a year here over 2010–2024, alongside 754 thunderstorm wind reports. Hail of 1 inch or larger was reported in every one of those years.
When is hail season in Ohio?
May has the most hail reports (1,135, 2010–Oct. 2025), followed by June (760) and April (605).
How strong were measured thunderstorm winds in Ohio, 2010–Oct. 2025?
105 mph, measured on November 5, 2017 in Portage County. Only gusts NCEI lists as measured count here; gusts measured on a date and county with a tornado entry, and entries of 120 knots or more (known entry errors), are left out.
Storm professionals: restoration and exterior contractors, public adjusters, and crews and teams on one Organization plan work from this same public record — see StormAuditor for professionals.
Sources: NWS alerts (api.weather.gov) · NWS Local Storm Reports via the Iowa Environmental Mesonet · ASOS/AWOS station gusts via the Iowa Environmental Mesonet · NOAA NCEI Storm Events Database · every StormAuditor data source.
Download the Ohio dataset (free)
The full consolidated Ohio event list for the trailing 12 months — dates, counties, hazard types, severities, measured gusts and hail sizes, with coordinates; source records deduplicated, and each NWS warning product listed per affected county — downloads free and stays current with the live record: download CSV · JSON at https://www.stormauditor.com/downloads/storm-data/oh.json. Free to reuse under the data license; the JSON file carries a field dictionary and provenance notes.
Research a specific Ohio address
Statewide counts tell you where activity concentrated; they do not tell you what happened at one property. For an individual address:
- Run the Free Report Snapshot — an instant YES/NO against StormAuditor's screening thresholds (wind ≥ 45 mph, hail ≥ 0.75 in., deliberately below the official NWS severe criteria).
- Use the Address Lookup for warnings, storm reports, and station observations at the address.
- Buy a full Weather Report for $2.99 covering every qualifying storm date at the address.
Browse day-by-day activity on the Storm Calendar (Pro plans and higher) or compare states on the Storm Data hub.
All values are derived from public NOAA and NWS data under StormAuditor's published methodology (see Limitations). Data last refreshed October 21, 2026.
See where recent storms tracked on the statewide Ohio hail map and wind map (the Hail and Wind Explorers, included with Pro+ and Organization plans), or check the county impact heatmap (free with an account).
Ohio cities A–Z: last reported hail
- Akron hail & wind history — last hail September 3, 2026 (1.75 in. reported)
- Canton hail & wind history — last hail September 3, 2026 (1.75 in. reported)
- Cincinnati hail & wind history — last hail November 18, 2025 (0.75 in. reported)
- Cleveland hail & wind history — last hail August 22, 2026 (1.75 in. reported)
- Columbus hail & wind history — last hail August 8, 2026 (0.88 in. reported)
- Dayton hail & wind history — last hail August 7, 2026 (1.00 in. reported)
- Elyria hail & wind history — last hail August 22, 2026 (1.75 in. reported)
- Lorain hail & wind history — last hail August 22, 2026 (1.75 in. reported)
- Parma hail & wind history — last hail August 22, 2026 (1.75 in. reported)
- Springfield hail & wind history — last hail May 16, 2026 (1.25 in. reported)
- Toledo hail & wind history — last hail August 22, 2026 (0.75 in. reported)
- Youngstown hail & wind history — last hail August 11, 2026 (1.00 in. reported in Pennsylvania)
Neighboring states: Indiana storm data · Kentucky storm data · Michigan storm data · Pennsylvania storm data · West Virginia storm data
Guides for reading this data
Storm-day records in Ohio
The newest storm-date pages for Ohio cities: a report or station gust within 25 miles of the city met NWS severe criteria (hail 1.00 in.+ or wind 58 mph+), with at least two separate observations. Each page lists the reports, station gusts and a free way to check one address:
- Cleveland, OH — August 22, 2026 (hail 1.75 in., gusts 52 mph)
- Columbus, OH — August 11, 2026 (gusts 82 mph)
- Youngstown, OH — July 5, 2026 (gusts 90 mph)
- Akron, OH — April 15, 2026 (hail 2.00 in.)
- Cleveland, OH — April 15, 2026 (hail 2.00 in., gusts 52 mph)
- Elyria, OH — April 15, 2026 (hail 2.00 in., gusts 43 mph)
- Parma, OH — April 15, 2026 (hail 2.00 in., gusts 43 mph)
- Youngstown, OH — April 15, 2026 (hail 2.00 in., gusts 90 mph)
- Cleveland, OH — March 13, 2026 (gusts 85 mph)
- Dayton, OH — March 13, 2026 (gusts 77 mph)
Cite or link to this data — free
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Citation: StormAuditor. "Ohio Storm Data: Hail & Wind History Since 2010." Updated October 16, 2026. https://www.stormauditor.com/storm-data/oh
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About this page: built by Storm Auditor LLC from public NOAA/NWS records — deduplicated warnings, storm reports, station measurements, and official records on a rolling 12-month window, under the published methodology. See the StormAuditor Editorial Team for how content is produced.
Read more: Ohio's Storm Season, March Into September, in Data