Hail in Missouri — where it hits, county by county
Hail is a fact of life on Missouri ground — 1,189 National Weather Service hail reports in the last 5 years, led by St. Louis County, peaking around March. The table below ranks the counties; the interactive national map shows exactly where, year by year. Checking a specific address? The map’s search box pulls every dated report within 25 miles.
Open the interactive map on Missouri →Top hail counties in Missouri (2022–2026)
| County | Reports | Avg/yr | Peak month | % damaging (≥1.5″) |
|---|---|---|---|---|
| St. Louis | 303 | 60.6 | May | 29% |
| St. Charles | 163 | 32.6 | Mar | 46% |
| Jefferson | 97 | 19.4 | Mar | 35% |
| Clay | 95 | 19.0 | Mar | 34% |
| Greene | 93 | 18.6 | Apr | 43% |
| Platte | 70 | 14.0 | Mar | 49% |
| Jackson | 69 | 13.8 | Mar | 26% |
| ST. LOUIS | 67 | 13.4 | Apr | 21% |
| Christian | 66 | 13.2 | May | 45% |
| ST. CHARLES | 60 | 12.0 | May | 25% |
| Cass | 58 | 11.6 | Sep | 40% |
| Franklin | 48 | 9.6 | May | 40% |
Missouri hail — the questions people ask
Where does it hail the most in Missouri?
By reported hail over the last 5 years, the most active counties in Missouri are St. Louis, St. Charles, Jefferson. Reports track population and spotter coverage as well as storms, so rural corridors can be under-counted; the persistent leaders on this table are real hail geography.
When is hail season in Missouri?
Reported hail in Missouri peaks around March, with most activity in the spring-through-midsummer window. Any single year can break the pattern.
How much of Missouri's hail is damaging?
On this page, damaging means reported stones of 1.5″ or larger — the size that reliably dents roofs and vehicles and strips crops. The per-county damaging share is in the table; statewide, hail of any size totaled 1,189 reports over 5 years.