Rune Olsen, who owns the Esso petrol station in the village, told NRK that there was now a 70 degree difference between indoor and outdoor temperatures.
"People think it's nice to sit at home around a fire in their wood stoves. They put pictures on facebook of the temperature outside and inside, and it is usually 70 degrees difference," he said.
A region of high pressure over northern Norway and Sweden has caused a sudden cold snap with record low temperatures for the time of year recorded in Karesuando, Sweden, 80km drive south from Karasjok across a strip of Finland.
"It is also a seasonal record," Lars Unnerstad, a Swedish government meteorologist, told TT news agency
Rafael Escobar Løvdahl, a government meteorologist based in Tromsø, Norway, said that the cold snap would end by the weekend.
The high pressure will finally disappear on Friday. Then a low pressure and precipitation will come first to Nordland on Saturday and later to Tromsø."