Dayton, Ohio Hail Report and Map: September 17, 2026
Was there hail in Dayton, OH on September 17, 2026? Radar estimated hail up to 1.83 inches inside the town limits of Dayton on September 17, 2026 (Eastern time). Radar estimates of at least 0.5 inch covered 20% of the town. Radar detected hail aloft in this area between about 1:25 p.m. and 1:50 p.m. ET on September 17, 2026.
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Hail estimates at a glance
| Storm date (Eastern time) | September 17, 2026 (Thursday) |
|---|---|
| Maximum radar estimate across the area | 1.83 inches; strongest part of the swath about 5 miles north of Dayton, OH |
| Maximum radar estimate inside Dayton | 1.83 inches |
| Share of Dayton with radar estimates of at least 0.5 inch | 20% |
| Approximate radar timing | Between about 1:25 p.m. and 1:50 p.m. ET on September 17, 2026 (Eastern time) |
| County coverage includes (0.5 inch or larger) | Montgomery County (27 sq mi) |
| Area with radar estimates of 0.5 inch or larger | about 27 square miles |
| Source | NOAA MRMS radar hail estimates (MESH) |
Which towns had hail on September 17, 2026?
Radar estimated hail of at least 0.5 inch inside these town limits, using U.S. Census boundaries. Each percentage is the share of town area with those estimates.
| Town | County | Maximum radar estimate inside town limits | Town area with estimates of at least 0.5 inch |
|---|---|---|---|
| Dayton, OH | Montgomery County | 1.83 inches | 20% |
| Vandalia, OH | Montgomery County | 1 inch | 12% |
| Clayton, OH | Montgomery County | 0.98 inch | 2% |
| Riverside, OH | Montgomery County | 0.94 inch | 64% |
Towns near the hail
The strongest part of the swath was within 15 miles of these towns. Distances and directions run from each town to that part of the swath.
- Huber Heights, OH: strongest radar estimates about 5 miles west of town
- Trotwood, OH: strongest radar estimates about 6 miles northeast of town
- Englewood, OH: strongest radar estimates about 6 miles southeast of town
- Kettering, OH: strongest radar estimates about 10 miles north of town
- Beavercreek, OH: strongest radar estimates about 11 miles northwest of town
- Fairborn, OH: strongest radar estimates about 10 miles west of town
- Troy, OH: strongest radar estimates about 14 miles south of town
- Centerville, OH: strongest radar estimates about 14 miles north of town
What time did radar detect hail?
Radar detected hail aloft in this area between about 1:25 p.m. and 1:50 p.m. ET on September 17, 2026. We used 16 NOAA radar hail detections in this area to estimate the window. We trim outlying detection times when enough are available, then round down to five-minute marks. It doesn't give an arrival time at an address.
Data source and limits
We use NOAA's MRMS radar product MESH (Maximum Estimated Size of Hail) for hail-size estimates. Each town's figure is the maximum inside its Census town limits. The percentage is the town area with estimates of at least 0.5 inch. A town's maximum isn't an estimate for every home. Each storm date covers one calendar day in Eastern time. A late-evening storm west of the Eastern time zone can appear under two dates. Radar estimates don't confirm hail on the ground or roof damage. Hail of 0.5 to 0.75 inch can damage roofs, especially older roofs. An estimate below 1 inch doesn't rule out damage. Read how we calculate sizes and times.