Files — The Weather

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

The .epw (EnergyPlus Weather) format is a global standard developed by the U.S. Department of Energy . Other common versions include TMY3 and IWEC files. The Weather Files

Many countries provide localized data, such as the Building Performance site for Aotearoa New Zealand. An In-Depth Look at Weather Files - ClimateData.ca A widely cited repository for updated TMYx files

Reliable weather data is available through several major repositories: The Weather Files

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