Snow golems ignore the danger of hot biomes, which are harmful to them, causing them to die. This issue is similar to MC-200580 and MC-161471.

Steps to reproduce:
1. Locate the border between a hot biome and a colder one
2. Spawn several snow golems in the colder biome
3. Wait a moment

What I expected to happen was:
The snow golems will steer clear of dangerous biomes to avoid harming themselves.

What actually happend was:
The snow golems will wander into the hot biome and perish.