The Weather Files May 2026

A primary source for thousands of international weather locations.

A standard weather file stores hourly information for a full year, including: Dry-bulb and dew-point temperatures. The Weather Files

Relative humidity and barometric pressure. 3. Future Weather Files & Climate Change A primary source for thousands of international weather

These are the most common files, created by statistically selecting the 12 most "typical" months from a multi-year period (often 10–30 years). The Weather Files

A widely cited repository for updated TMYx files and climate change data.