The climate in Moscow is **temperate continental**. It is mainly characterized by **warm** summers and **cold** winters. The cold period starts in **October** and ends in **April**. Snow falls in **November** and stays till **March**. There may be long frosts or periods of thaw. The mild weather comes in **May** and stays till **September**.
**Explanation:**
The climate description fills the gaps with characteristic features of Moscow's climate including the temperature and the months that mark the start and end of seasons.