Hailstorms, added by the Weather Mobs idea pack, occur when a Rainstorm is happening between about 10:00 p.m. Minecraft time and 3:00 a.m. Before or after those hours, it will turn back to rain. They are also triggered by summoning the Hail Boss. While it is hailing, the player takes every 10 seconds, making it dangerous to be out in. Every time they take damage, there is a 1% chance that the Hail Boss will spawn. Mobs called Angry Hail may also spawn in Hailstorms. A new block called Hail will also appear on the ground.
- If the elevation is high enough, Hailstorms will not occur at all because it is snowing instead.