Nights in summer can be cool , but in winter the region is the coldest part of mainland Australia outside the Alps , with July minima averaging -0.3 ° C ( 31.5 ° F ) in Canberra and -1.5 ° C ( 29.3 ° F ) in Bombala .
Nights in summer can be cool , but in winter the region is the coldest part of mainland Australia outside the Alps The with July minimum temperatures averaging − 0.3 ° C ( 31 ° F ) in Canberra and − 1.5 ° C ( 29 ° F ) in Bombala .