You'd be forgiven for staying in bed a little longer on Saturday morning. Canberra was dusted over with frost overnight as temperatures plunged to minus 7.1.

Along the Monaro Highway, trees had turned white and fog hung over much of the capital.

Canberrans woke up to a frosted city on Saturday. Credit:Dion Georgopoulos

And, while Thredbo enjoyed its biggest snowfall of the season this week, overnight lows were relatively modest compared to the capital, hitting minus 5.7 just after midnight.

Not to be deterred, runners pounded tracks across Canberra on Saturday morning, some reporting frosted shoelaces and caps. Junior sporting matches kicked off on silver fields as the fog persisted.