The nighttime temperature is measured in Denmark from 19:00 to 07:00. 13.3 degrees is the highest value recorded since the measurements began in 1874.
The warmest place was Skrydstrup in southern Jutland, 15.8 degrees, according to the weather authority DMI.
Such high temperatures are normally associated with summer. Now it's too late in the season for meteorologists to talk about summer, but the values are in line with the Swedish summer definition, which states that the daily temperature should be above 10 degrees.
Meteorologist Thomas Mørk tells DR that such nighttime records are a clear sign of human-induced climate change.
When such a record occurs at night, it's an expression of how exceptionally warm the air is in itself, he says, and explains:
Tonight, there was no influence from the sun or the warming effect of cities, since it has been so windy that the air has been mixed up and is very uniform across the country.
