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 infiltration.

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

Tools like the WeatherShift™ tool use climate model projections to adjust historical files for future decades (e.g., 2050 or 2080).

These contain data from a specific, real-world year. They are essential for calibrating building models against actual utility bills or performance data. 2. Core Data Components Many countries provide localized data, such as the

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

A primary source for thousands of international weather locations. Engineers now use to "future-proof" designs

Reliable weather data is available through several major repositories: