The Finnish Meteorological Institute (FMI) said -30-degree weather is in store for much of Lapland in the coming days.
Salla in eastern Lapland held the previous cold record of -32.2 degrees Celsius measured on 3 January.
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Deep freeze set in
Yle meteorologist Matti Huutonen said the mercury will plunge across Finland as the week begins.
By Tuesday, thermometers in southern parts of the country will fall to -12C while northern areas will experience lows in the -25 to -30C range.