Norfolk has seen its coldest January night for 10 years.
Meteorologist Dan Holley, from Norwich-based Weatherquest reported a -9.3C in the Marham area during Sunday night.
He said this was the coldest January night in East Anglia since 2013.
This tops the previous night (January 21), which was reported to be the coldest night of the year so far.
It came amid a yellow weather warning issued by The Met Office for freezing fog, which is in place until 11am today (January 23).
Drivers are being urged to take extra care on the roads in these conditions.
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