August 7, 2026: NOAA's SPC logged 1 hail report around Dayton, all in Montgomery County, at 18:45 UTC. Nearest to Dayton was a report 9.3 miles out (3 ESE Miamisburg). The largest stone measured 1.00 in. at 3 ESE Miamisburg, Montgomery County.
Where the hail fell
- under 0.75 in
- 0.75 to 0.99
- 1.00 to 1.74
- 1.75 to 2.49
- 2.50 and up
How many reports fell close to the city
| Distance from city center | Reports | Largest hail |
|---|---|---|
| Within 5 miles | 0 | — |
| Within 10 miles | 1 | 1.00″ |
| Within 25 miles | 1 | 1.00″ |
Reported hail, report by report
| Time (UTC) | Hail size | Location | Distance from city center |
|---|---|---|---|
| 18:45 | 1.00″ | 3 ESE Miamisburg, Montgomery County | 9.3 mi |
The rows above come from preliminary Local Storm Reports of the NOAA Storm Prediction Center. Sizes are reported hailstone diameters; times are UTC. Reports can be added or corrected for about a day after the event. Where a report carries no distance, it is measured in a straight line from its coordinates to the city center.
What 1.00 in. hail on August 7, 2026 means for a Dayton roof
1 of the 1 sized Dayton reports reached 1 in. The 1.00 in. stone at 3 ESE Miamisburg, Montgomery County falls in the 1.00 to 1.74 in class; on August 7, 2026 that is quarter to ping-pong ball territory for Dayton.
The same storm in nearby cities
On August 7 the log holds 5 matched cities in 4 states; Dayton has no neighbour within 220 miles, so its hail stood alone on August 7.
Where the claim clocks stand for the Dayton storm
Dayton: that storm was 79 days ago. Rows marked passed are not cut-off dates on their own; the only legal limits are the ones tagged statute. For Dayton the photo window, the inspection and the target filing date (Fri, Aug 14) are already behind us.
- The Dayton clock starts at your proof of loss, not on Aug 7: 21 calendar days. Statute text
- For Dayton this period is 6 years from the day the insurer gets your claim, so no date is shown. Statute text
Dayton: insurer clocks counted from a claim filed Fri, Aug 14; working-day clocks skip weekends. Claim deadlines for Dayton, OH. Not legal advice; your own reporting deadline comes from your policy.
August 7 against the Montgomery County August record
Dayton's August 7 log shows 1.00 in. hail. The record August in Montgomery County since 2014 is 2015, with 1 reports and a largest stone of 0.75 in.
Hail history near Dayton: not the first
Dayton’s county has logged 45 hail events since 2017; if this one leads to a replacement, ask about Class 4 impact-resistant shingles, which some insurers discount. Check your own address on the hail risk lookup.
See all roofing contractors in Dayton, OH
What the sizes reported on August 7, 2026 can do to a roof
| Size class in Dayton's reports | Looks like | Reports | What that size can do |
|---|---|---|---|
| 1.00 to 1.74 in | quarter to ping-pong ball | 1 | Shingles can bruise and shed granules, often unseen from the ground. |
Size classes follow the SPC report diameters; the damage wording is general, not a finding about any one roof.
The week after August 7, 2026
After Fri, Aug 7, the feed logged 5 hail reports on 3 of the next 7 days in Dayton and the cities within 100 miles. The first came on Mon, Aug 10.
| Day | Reports in Dayton | Other cities within 100 miles | Largest hail |
|---|---|---|---|
| Mon, Aug 10 | 0 | 1 city, 1 report | 1.00″ |
| Tue, Aug 11 | 0 | 1 city, 1 report | 1.25″ |
| Thu, Aug 13 | 0 | 2 cities, 3 reports | 1.75″ |
Questions about this storm
Dayton, August 7, 2026: how big was the hail?
At 3 ESE Miamisburg, Montgomery County, the largest SPC report was 1.00 in.
Dayton, August 7, 2026: how close did the hail fall?
The nearest report sat 9.3 miles from the city center.
Dayton, August 7, 2026: what dates apply to a Ohio insurer?
A claim filed on Fri, Aug 14 puts Dayton's insurer on the clock: acknowledgment by Sat, Aug 29; decision 21 calendar days after proof of loss. That is Ohio law, applied to Dayton. Information, not legal advice; Dayton homeowners find their own reporting deadline in the policy.
Do I need an inspection if my roof looks fine?
Often, yes. Hail bruises and granule loss are hard to see from the ground. A dated inspection scope is what ties damage to this storm rather than to ordinary wear.
What did the feed log near Dayton in the week after August 7, 2026?
After Fri, Aug 7, the feed logged 5 hail reports on 3 of the next 7 days in Dayton and the cities within 100 miles. The first came on Mon, Aug 10.
About these numbers
Every figure on this page comes from the NOAA Storm Prediction Center Local Storm Reports file, matched to reports within 25 miles of the city center. Reports are preliminary: they come from trained spotters, emergency managers, the public and mPING app submissions, and sizes are often estimated against a coin or ball. We do not adjust them. A roofer tagged Verified holds a license or registration we confirmed in a public registry. That tag says nothing about coverage, so ask whoever you pick for a current certificate of insurance before signing.
More Resources
All recent local hail · Roofing contractors · Insurance claim guide · Roof replacement costs here · Emergency roof repair