As the climate shifts, historical data (TMY) may become less representative of a building's future lifespan. Engineers now use to "future-proof" designs.
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
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. As the climate shifts, historical data (TMY) may
Reliable weather data is available through several major repositories: As the climate shifts