Climate in Stillwater

Stillwater shares Minnesota's humid, four-season climate and statewide tornado exposure, plus a real, distinct St. Croix River flood risk genuinely unlike this batch's other Minnesota markets.

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A humid, four-season St. Croix Valley climate

Stillwater's river-valley location in Washington County shares the humid, four-season climate documented across the eastern Twin Cities metro -- warm, humid summers and cold winters.

A real, statewide tornado risk

A documented F4 tornado struck approximately 15 miles from Stillwater's city center on May 6, 1965, killing 6 people and causing $5 million-$50 million in damage -- illustrating Minnesota's real, regional tornado severity.

A real, recurring St. Croix River flood risk

The St. Croix River crested at a record 94.10 feet at Stillwater on Easter weekend 1965, shutting down downtown Main Street and requiring emergency dikes. The river has topped 90 feet only three times since -- 1969 (92.20 ft) and twice in 2001 (a second-highest-ever 92.30 ft crest) -- a real, year-variable but genuinely recurring risk.

Key takeaways

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Last reviewed: 2026-08-27. Independent research; not financial, tax, or legal advice -- confirm current figures with a local professional before making a decision.