Traditional Culture Encyclopedia - Weather inquiry - When should English words about weather be spelled with Y and when not?

When should English words about weather be spelled with Y and when not?

Double spell plus y in sunny days

Adding y in rainy days is not a double spell.

It is raining, it is raining.

It's windy

cloudy

Drizzle Mao Mao rain.

Fog frost

A gentle breeze

Light rain shower

A downpour, a rainstorm.