。
Hokkaido gets a lot of snow, doesn't it.
Literal
Hokkaido [topic-は] lots snow [subject-が] falls [confirmation-ね].
雪が降る ('snow falls') is the standard way to express 'it snows' — snow is the grammatical subject. たくさん ('a lot') is a common quantifier. 降りますね is polite with the confirmation-seeking ね. A weather remark inviting agreement.