Tools like the WeatherShift™ tool use climate model projections to adjust historical files for future decades (e.g., 2050 or 2080).
Relative humidity and barometric pressure. 3. Future Weather Files & Climate Change
There are two primary categories of weather files used to analyze building energy demand and resilience:
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 and climate change data.
Reliable weather data is available through several major repositories:
These are the most common files, created by statistically selecting the 12 most "typical" months from a multi-year period (often 10–30 years).
Direct and diffuse solar intensity, critical for calculating heat gain.