If I'm not mistaken, it all depends on your weather data. If you are using EPWs from EnergyPlus or any similar database, they normally use data averaged from the last 10-15 years, depending on the source.

If you are interested on simulating your building for the specific climatic conditions of 2018, in your location, then you should probably look into AMY - Actual Meteorological Year, and get an EPW that represents this 2018 for your location. There is a very useful topic regarding AMY in this forum already.