AUSSKY

Trentham is a cool country village in the central ranges of Victoria midway between Woodend and Daylesford. Summers are usually pleasant with the temperature often approximately 8C cooler than Melbourne. Summer nights are usually pleasant for sleeping. Late autumn to mid spring months are wetter than summer and it isn't unusual for Trentham and the immediate area to receive 120 - 180mm in one or more of these months. Snow and sleet is recorded on average 12 - 13 days a year and nights of -4C in winter aren't unusual.

The link provides the climate summary for Trentham, with some records dating back to before 1900...
http://www.aussky.com.au/trenthamareaclimaticave.pdf

There is a live weather station in town which updates the current conditions every 5 minutes
http://trentham.bsch.au.com/Trentham/Current_Vantage_Prop2.htm

There are 2 buses from Trentham connecting to Woodend train station each day, the trains from Woodend to Melbourne are frequent, reliable and well patronised.