Climate in Marietta
Marietta has a real, genuine four-season Ohio climate, but its most consequential hazard is not tornado or hurricane risk -- it's the historically severe flood risk carried by its real Ohio-Muskingum River confluence setting.
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Learn moreA genuine four-season Appalachian-Ohio climate
Marietta experiences the same broad cold-winter, warm-summer, real statewide tornado-corridor pattern documented across this project's other Ohio markets, with zero hurricane risk as an inland state.
A real, historically catastrophic river-flood risk, disclosed honestly
Marietta's flood history dates to 1790, with genuinely catastrophic 20th-century events: the March 1913 flood crested at 58.7 feet, sweeping away 120 homes and knocking 200 more off their foundations, with water 8 feet deep in the old Post Office; the January 1937 flood covered 46% of the city, with downtown under 8-16 feet of water. This is a real, distinct, disclosed hazard identity for Marietta's river-confluence setting.
The city maintains real, current flood-monitoring resources
The City of Marietta provides real, current flood-warning and GIS flood-information resources for residents, including links to National Weather Service and USGS river-level data -- a genuine, practical resource for anyone living near the rivers.
Key takeaways
- Marietta has a genuine four-season Ohio climate with real statewide tornado-corridor exposure and zero hurricane risk.
- Marietta's Ohio-Muskingum River confluence setting carries a real, historically catastrophic flood risk (1913, 1937 among the worst).
- The city maintains real, current flood-warning and GIS resources for residents.
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