Hail history / St. Louis / ZIP 63304
Hail history for ZIP 63304, Saint Charles, MO
5 days with 1-inch hail or larger somewhere in 63304 since October 2020. The most recent was August 12, 2026.
51"+ hail days since Oct 2020
3.81"largest, May 16, 2025
August 12most recent, 2026
1991median year built
63304 (Saint Charles, MO): median home built in 1991, 88% owner-occupied, about 16,690 housing units (Census).
| Date | Max hail in ZIP | Share of ZIP 1"+ | Homes 1"+ (est.) |
|---|---|---|---|
| August 12, 2026 | 1.09" | 1% | 158 |
| April 27, 2026 | 1.59" | 12% | 1,665 |
| May 16, 2025 | 3.81" | 69% | 9,912 |
| May 26, 2024 | 1.59" | 13% | 1,823 |
| April 1, 2024 | 2.76" | 39% | 5,630 |
Check one address
A ZIP is big. The free hail check gives the hail size at one address, on every one of these dates.
For roofing companies
Swath puts every house under 1"+ hail on your crew's phones by 7:30 the next morning, ranked biggest hail first, with your logo on the app and ZIP codes that are yours alone.
See this storm in the appHow Swath works