372 cities · 407 ZIP records
DampDeck combines factual geography with a source-led state moisture profile. Because states can span multiple climate regions, the profile is orientation rather than a city-level climate claim.
Cold / seasonally dry moisture context
Cold-weather condensation and over-humidification can be more important than year-round outdoor humidity, while snowmelt, plumbing and foundation water remain separate moisture sources.
How to read this: this is state-level orientation, not a claim that every home in North Dakota has the same climate, construction or moisture risk. US states can span multiple climate regions. Diagnose the actual water pathway first.
Guidance basis: US EPA moisture and mold control guidance; US Department of Energy Building America climate-region framework. Reviewed September 2026.
This state page shows the 250 largest city records by ZIP coverage. ZIP search still resolves every record in the bundled dataset.