Stony shore biome is still considered a cold biome even is a coastal biome now

Notice the foliage color on the stony shore biome is the same of cold biomes one.
Also It can snow from 118y and above (reference to MC-240697)

Snow layers can form on the stony shore biomes
Seed: -5026794624863887968
Coords: /execute in minecraft:overworld run tp @s -1875.87 120.88 -4295.78 2045.30 24.18