Hi there,   I often wonder why ACES decided to include the season selection option given that it's both inaccurate and confusing. All it does is pick a fixed date but whether that translates into the chosen season being displayed at the user aircraft's location is not certain at all. The seasons control file in FSX/P3D work on a monthly temporal resolution and a spatial resolution of ~1.5 sq km; for more information see http://www.orbxsystems.com/forum/topic/18695-pnw-textures/?do=find