Canada ends September with its first -20°C reading of the season
Temperatures dipped below -20°C in Canada's Far North on Sept. 29.
It's fall, which means winter is around the corner! It may be early in the season still, but we have already seen our first -20°C reading.
Only 21 days after Canada's first -10-degree reading in Isachsen, Nvt., we are seeing -20-degree temperatures in Eureka, Nvt.
Visit our Complete Guide to Fall 2025 for an in depth look at the Fall Forecast, tips to plan for it and much more!
These winter temperatures across Northern Canada are thanks to some strong ridging in the upper atmosphere, keeping the cold up north and the warmth down south.
While it may seem early in the season for these types of temperatures, they're actually historically late this year.
Eureka has seen -10-degree temperatures as early as August 23, a feat that was recorded back in 2013.
The remote community has even seen temperatures reach -30°C in September! The record for the coldest September temperature was set when the thermometer reached a bone-chilling -31.7°C on Sept. 25, 1961.
Historically, on September 29th, Eureka sees an average daytime temperature around -8°C and an average overnight temperature around -13°C. So a -20-degree reading at this time of year is still an impressively below-average temperature.
Stay with The Weather Network for more information and updates on your weather across Canada.