Canberra has experienced its coldest July day in two decades, and coldest day in 12 years, after the mercury barely breached 6 degrees yesterday (6 July).
Temperatures then dipped to -4.7 degrees overnight, reaching the minimum just after 3:30 am on Wednesday.
But for freezing Canberrans, it may have felt even colder, with the wind chill factor making it 2 to 3 degrees colder than it was – or up to 4 degrees colder in the ranges.
Braidwood and Goulburn also had temperatures drop well into the negatives overnight, hitting lows of -5.7 and -7.2 degrees respectively.
Meteorologist for the Bureau of Meteorology Melody Strum said temperatures in Canberra were about 6 degrees lower than the July average at the moment.
This increases slightly during the day to between 2 and 4 degrees colder than average.
The cold snap hitting Canberra is forecast to hang around until later in the week and is due to a mix of a high-pressure system moving through NSW and the ACT, as well as high humidity which means the morning fog can trap in overnight temperatures, resulting in colder days.