Questions & Answers about В октябре я чаще пью горячий чай и надеваю серый свитер.
Because after в meaning in with a month, Russian uses the prepositional case.
- Dictionary form: октябрь = October
- Prepositional form: октябре
So:
- в октябре = in October
- в январе = in January
- в мае = in May
This is a very common pattern for months and other time expressions.
Чаще means more often. It is the comparative form of часто (often).
- часто = often
- чаще = more often
So я чаще пью горячий чай means I drink hot tea more often.
It usually implies comparison with another time, season, or situation, even if that comparison is not stated directly.