Coldest Day Of The Year 2025. Tuesday is expected to be the coldest day of 2025 in southern ontario. Here is an update that now includes an interactive map to show you when you can expect the coldest day of the year to occur where you live.

2024 will end in a cold snap across the bay area, northern california and central coast with this year’s coldest temperatures ringing in 2025. Temperatures are expected to dip.