**Warning!** Do **NOT** use this mod in a public online session, you may be banned for playing with modded files.
1. Enter in GTA Online (I advise private session)
2. Run "GTA5OnlineSnowPC.exe" as administrator
3. You'll be greeted with the text "Snow:". Just enter a "1" to enable, or a "0" to disable it and confirm your choice by hitting enter.