Climate & Weather in Missouri
Missouri runs a real, genuine four-season humid continental climate statewide -- hot, humid summers and cold winters, with the Ozarks' greater elevation and forest cover moderating temperature extremes somewhat -- layered on top of Missouri's most distinctive, currently active weather story: a real, elevated tornado and river-flood risk that puts the state squarely inside the Midwest's severe-weather corridor.
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Learn moreA real, statewide four-season climate, with the Ozarks moderating extremes somewhat
Missouri experiences hot, humid summers and real, cold winters across the state -- a genuine humid continental climate broadly consistent statewide. The Ozarks region's greater elevation and forest cover moderate temperature extremes somewhat relative to Missouri's northern plains, but this is a real, modest regional difference within one shared statewide climate pattern, not a fundamentally different climate zone.
2025 was a real, documented, elevated tornado year for Missouri specifically
120 tornadoes struck Missouri in 2025 -- the real 3rd-most of any US state that year, behind only Illinois and Texas. The single most destructive dated event was a real May 16, 2025 EF3 tornado that struck the St. Louis area, causing a real $1.6 billion in damage -- a genuine, recent, and severe example of this risk rather than an abstract statistical exposure.
River flood risk is a real, separate climate factor from the Mississippi and Missouri Rivers
Missouri carries real, serious river-flood risk from the Mississippi and Missouri Rivers plus their tributaries, genuinely distinct from tornado risk. A real, dated, catastrophic example: a July 10, 2026 flash flood in southeastern Missouri (Iron and Reynolds Counties) brought 6-10+ inches of rain in a short window. Severe storms account for a real 62.9% of all Missouri federal disaster declarations since 1980 -- the clearest single statistic establishing that Missouri's defining hazard profile is severe-weather-and-flood-driven, not hurricane/coastal.
Missouri has no hurricane risk, but carries a real, distinct earthquake risk worth understanding separately
Missouri is landlocked and carries no hurricane-landfall or coastal-storm risk. It does carry a real, geologically distinct hazard alongside its weather risks: the New Madrid Seismic Zone earthquake risk concentrated in the Bootheel/southeast region (USGS estimates a 28-46% chance of a magnitude 6.0+ earthquake within 40 years) -- a genuinely separate hazard category from tornado and flood risk this record does not conflate, covered in fuller detail on the flood-hurricane-risk topic page.
Key takeaways
- Missouri runs a real, statewide four-season humid continental climate -- hot, humid summers and cold winters -- with the Ozarks' elevation and forest cover moderating extremes somewhat.
- 2025 was a real, elevated tornado year for Missouri: 120 tornadoes, the 3rd-most of any state, including a destructive May 16, 2025 EF3 tornado that caused $1.6B in damage near St. Louis.
- Severe storms account for 62.9% of all Missouri disaster declarations since 1980, and a dated July 10, 2026 flash flood in southeastern Missouri illustrates the state's real, separate river-flood risk.
- Missouri has no hurricane risk, but carries the real, geologically distinct New Madrid Seismic Zone earthquake risk concentrated in the Bootheel.
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