You can't summon an arctic fox with a command.
Frogs have spawn event "spawn_cold", rabbits have "in_snow", but foxes don't have any with which to summon a snowy version of him
MCPE-164353
You can't summon an arctic fox with a command
Open
1
Fox color is based on the biome they spawn in, not a specific spawn event. This is similar to villagers’ outfits.