Free Average Humidity by Zip Code

This dataset is free

The long-term average humidity (with dew point) for every US zip code — one overall value per zip code, built from official NOAA station records over a rolling 10-year window (July 2016 – June 2026), updated monthly. Delivered as Excel (.xlsx).

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Need month-by-month averages or actual history?

Monthly-average breakdowns and full 10-year daily and monthly time-series are on our pricing page. More about the free tier: free historical weather data.

Sample from the actual file

Real rows from this free dataset (average humidity), shown to one decimal. The full file covers 40,000+ US zip codes — one long-term average per zip.