[Noun 1]は[Noun 2]が[Adjective] or [Noun 1]の[Noun 2]は[Adjective]

Question

Consider the phrase: The Winters of Quebec are cold.

I understand that the correct form is

ケベックは冬が寒いです。

Since a possessive form is involved here (the Winters of Quebec), why is

ケベックの冬は寒いです。

not correct?

Answer 1

Both sentences are fine. They only have slightly different meaning, and you would use one or the other depending on context, for example:

Ex.1: "Where do you live?" "I live in Quebec" "Winters are cold in Quebec, aren't they?"

(ケベックは冬が寒いですね - "As for Quebec, winters are cold" - The topic is Quebec, something that have came up in the conversation, and the speaker elaborates on that topic suggesting that it has cold winters)

Ex.2: "It's winter now in Quebec" "Winters are cold in Quebec, aren't they?"

(ケベックの冬は寒いですね - "As for Winters of Quebec, they're cold" - The topic is "winters of Quebec", which have just came up in the conversation, and the speaker elaborates on that topic suggesting they're cold)