The - Weather Files

Speed and direction to estimate natural ventilation and infiltration.

A widely cited repository for updated TMYx files and climate change data. 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 Speed and direction to estimate natural ventilation and

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

Relative humidity and barometric pressure. 3. Future Weather Files & Climate Change

As the climate shifts, historical data (TMY) may become less representative of a building's future lifespan. Engineers now use to "future-proof" designs.

There are two primary categories of weather files used to analyze building energy demand and resilience: