Climate in Westfield

Westfield shares Union County's real, genuine four-season climate, with a real, disclosed inland-flood risk tied to the Rahway River basin and power-outage sump-pump failures.

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A four-season, humid continental-leaning climate

Westfield shares the same warm, humid summers and cold winters documented across this dataset's other North/Central Jersey markets.

No coastal-storm-surge exposure -- a real, Rahway-River-basin inland-flood mechanism

Westfield carries no coastal exposure of the kind documented for woodbridge-nj.js. Its real hazard runs through the Rahway River basin: Hurricane Sandy caused widespread basement flooding across Westfield specifically via power outages disabling sump pumps, the same mechanism documented for Summit.

Union County's broader flood-damage history

Union County recorded $31.8 million in private insurance claims from Hurricane Irene alone, with state engineering analyses finding floodwaters crested an average of 3.1 feet above FEMA's 100-year flood elevations countywide.

Key takeaways

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Last reviewed: 2026-08-25. Independent research; not financial, tax, or legal advice -- confirm current figures with a local professional before making a decision.