And there is still no sign of spring yet, say meteorologists.
“We have touched on a few records during the night,” duty meteorologist Trine Pedersen of the Danish Meteorological Institute (DMI) told newspaper Politiken.
Temperatures at Karup Airport in central Jutland were recorded at -6°C (21.2°F), reports TV2 – the coldest April morning this century.
Not since 1997 has more than six degrees below zero been recorded in Denmark during the fourth month of the year, according to TV2.
Pedersen said that a chill of -4.7°C (23.5°F) was measured at Karup at 7am on Wednesday, meaning frost on car windscreens and bicycle seats as well as risk of icy roads.
Similar icy conditions were also noted by DMI on Tuesday morning.
Der kan først på dagen stedvis forekomme glatte veje, kør forsigtigt! pic.twitter.com/UmuZ1CqHpp- DMI (@dmidk) April 18, 2017
Still, cold air over Denmark from the north and a high pressure zone are the cause of the exceptionally cold April weather, reports Politiken.
DMI reported on Sunday that the first half of Spring (from March 1st to April 15th) had in fact been slightly warmer than average, and record warm temperatures were also recorded last month.
Rainfall during March and the first half of June was also slightly above normal levels, although the period was still relatively dry overall, wrote DMI on its website.
Wednesday night is also likely to bring frost but will be slightly milder than Tuesday, Pedersen told Politiken.
“Wind will turn and come from the west, which will make weather slightly milder,” she said.
But wind from the north west means that warmer weather is still some way off.
“It will be cool and windy again in the immediate future,” Pedersen said.
Smuk frostklar morgen. Enkelte steder ned mod 5 graders frost. pic.twitter.com/sc71uw6gTy- DMI (@dmidk) April 19, 2017