The season's record low temperatures were Thursday morning in Kittilä, where the mercury dropped to 40.2 degrees below zero.
In the capital city region, many trains were running around 15 minutes late. Finnish State Railways VR advised passengers on Thursday to expect delays of up to 30 minutes on long-distance services.
The cold snap caused other problems, such as frozen water pipes. Heated trucks built for transporting food were also having problems functioning, and cars which use diesel have run into problems.
Across Finland, construction work has had to be postponed due to the cold.
Homeless Shelters Coping Finland's homeless population is feeling the brunt of the dangerously cold temperatures. Half of the country's 8,000 homeless live in the capital city region, where shelters may soon be overflowing. The situation has been made worse by the temporary closure of a 200-bed shelter for renovations. Workers at a shelter in Herttoniemi say that so far, no one has been turned away, however, they expect maximum capacity to be reached soon. Record Electricity Consumption The deep freeze has also increased electricity consumption to record levels. On Wednesday evening, consumption jumped to 14,000 megawatts.
Electricity grid operator Finngrid has advised consumers not to excessively use power during the peak morning and evening hours.