crawl space humidity summer NC SC

Crawl Space

Crawl Space Moisture Problems in Summer: Why NC and SC Humidity Makes It the Worst Season of the Year
ByCarolina Home Problem Report Editorial Team June 4, 2026June 4, 2026

⚡ QUICK ANSWERCrawl space moisture in summer is worse in NC and SC than at any other time of year — not better. From April through October, outdoor relative humidity regularly exceeds 80% in the Carolinas, and summer dew points in Raleigh and Charlotte regularly climb above 65°F. When this warm, moisture-saturated air enters a…

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