To get on your PC, you are essentially looking for a "Snow Mod" applied to the base game, as there is no official "Snow Edition" released by Rockstar Games. Overview of the Snow Edition
: Driving becomes more challenging with reduced traction, making sliding and drifting more prevalent. GTA San Andreas Snow PC Compressed Game Free Download
The Snow Mod transforms the sunny state of San Andreas into a winter wonderland. : Snow covers roads, buildings, and trees. To get on your PC, you are essentially
: Search for a reputable "GTA San Andreas Snow Mod" or "Snow Edition" from community sites like GTAInside or Softonic . To get on your PC
: Approximately 3.6GB to 4.7GB for a full installation, though "highly compressed" versions may download as small as 500MB–800MB. OS : Windows XP, 7, 8, 10, or 11. Installation Guide