Toronto Cold Snap Brings Below-Freezing Temperatures and Flurries

Toronto is experiencing its coldest weather in three years, with below-freezing temperatures expected to persist through the week. This ongoing cold snap brings icy conditions, flurries, and significant wind chills, impacting daily life and transportation.

Coldest Stretch in Years

Environment Canada forecasts indicate that Toronto could see its longest period of below-freezing temperatures since January 2022. The city is bracing for at least 12 consecutive days below freezing, with the potential to extend beyond 16 days.

Historical records show Toronto’s longest cold streak occurred from December 26, 1976, to February 9, 1977, lasting 46 days. While this cold snap won’t reach that extreme, it highlights the impact of Arctic air descending over Southern Ontario.

Forecast for the Week

Here’s what to expect in Toronto over the coming days:

• Tuesday: High of -5°C with a wind chill of -17°C. Flurries possible with gusts up to 50 km/h.
• Wednesday: High of -9°C, feeling like -24°C with the wind chill. Low of -11°C.
• Thursday: High of -4°C under partly cloudy skies. Overnight low of -10°C.
• Friday: Slightly milder with a high of -2°C and a chance of snow. Nighttime low of -8°C.
• Weekend: Snow chances continue, with highs near -2°C and lows around -8°C.

Impacts of the Cold Snap

• Wind Chills: Temperatures will feel significantly colder due to gusty winds, with wind chills reaching -24°C at times.
• Flurries: A 40% chance of snow exists throughout the week, potentially creating slippery conditions on roads and sidewalks.
• Warming Centres: Toronto’s warming centres remain open to assist vulnerable residents during this harsh weather.

Effects on the Great Lakes

Cold snaps typically increase ice coverage on the Great Lakes, but current levels remain unusually low. As of January 3, ice coverage is just 1.8%, well below the historical median of 12% for early January. Prolonged freezing temperatures could cause a sharp rise in ice formation by the end of this cold period.

Looking Ahead

The cold conditions are expected to ease slightly by the weekend. Daytime highs could rise closer to seasonal averages, providing some relief. However, the persistent Arctic air and lake-effect snow may continue to affect the Great Lakes region through mid-January.

Residents should bundle up, stay informed about weather conditions, and take necessary precautions during this prolonged cold snap. Check local forecasts regularly for updates and keep an eye on warming centre availability if needed.

More…

• https://www.thestar.com/news/gta/torontos-jan-7-forecast-chance-of-flurries/article_27d6ba45-2956-593f-85b2-4cddc52bea41.html
• https://www.cp24.com/local/2025/01/07/toronto-cold-snap-expected-to-hang-around-until-friday
• https://www.theweathernetwork.com/en/news/weather/severe/ontario-cold-snap-likely-to-be-torontos-longest-in-at-least-three-years-pearson-international-airport