"あなたの街では今朝どのぐらい雪が積もりましたか?" は英語で
- How much snow did you get in your town?
- How much snow piled up in your town?
といえます。
あなたの街 - your town//where you live
雪が積もりましたか - snow piled up//did you get snow//how much snow did you get//how much snowfall
- How much snow did you get (where you live)?
- How much snowfall did you get in your town?
How much snow did you get in your town this morning?
How much snow did you get in your town this morning?
『あなたの街では今朝どのぐらいの雪が降りましたか(積もりましたか)?』
How much snow は「どれくらいの量の雪」という意味になります。数えられない名詞の snow に合わせて How much を使います。