
Canada scores its first -20°C of the season later than normal - The Weather Network
Potentially a sign of things to come, the season’s first official -20°C of the year arrived a bit later than normal. Two areas in the Far North registered morning low temperatures in the minus-20s on Sunday, Oct. 4, marking the first time Canada has seen such a cold reading this season. DON’T MISS: With a 'super' El Nino, does that guarantee late-fall warmth in Canada? A pair of minus-20s on the boardMargaret Lake, Yukon, and Mould Bay, N. W. T., each dipped below the minus-20 mark on Sunday morning. Margaret Lake, which is about 275 km northeast of Dawson City, dropped down to -22.0°C to see this season’s coldest temperature across Canada. The site’s location at the foot of nearby mountains may have helped accentuate the morning’s chill. Mould Bay reached -20.9°C around the same time as Arctic air spilled over the island airport located in the Far North. The dual achievement arrived a little later than normal, and it’s the latest first -20°C reading we’ve seen in Canada since 2023. The country’s first minus-20 readings arrived in Nunavut during the past two years: in Eureka on Sept. 29, 2025, and in Alert on Sept. 27, 2024.











