Greater Sudbury Weather: Snowy Skies and a Deep Freeze on the Way

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Winter Weather Update

Sudbury’s Winter Symphony: Light Snow and Brisk Winds

This morning, Greater Sudbury is draped in light snow, with a temperature of -2°C, though it feels colder with a wind chill of -6. The southwest wind is gentle at 9 km/h, and the air is crisp, with 87% humidity. Barometric pressure is at 101.9 kPa and rising—signaling more stable weather to come, though winter isn’t letting go anytime soon.

Expect a 60% chance of flurries this morning, followed by periods of snow starting late morning, adding up to about 2 cm. As the snow continues, winds will shift to the north at 20 km/h this afternoon, with a high of -1°C that feels like -8 in the wind.

Tonight, A Deep Freeze Begins

Periods of snow will taper off this evening, leaving behind mainly cloudy skies. Gusty north winds of up to 40 km/h will calm by morning, but the temperature plummets to -18°C, with a bone-chilling wind chill of -24 overnight. This is a night for thick blankets and hot cocoa!

The Week Ahead: A Winter Wonderland

Thursday, December 19
Thursday promises sunshine, but don’t let the clear skies fool you—it will be a frigid day. The high will only reach -14°C, with a morning wind chill near -25. The afternoon wind chill moderates slightly to -17. Keep the parka zipped up!

The evening sees a return to clouds with a 40% chance of flurries. The low will be a brisk -13°C.

Friday, December 20
Friday is mostly cloudy with a 40% chance of flurries. The high creeps up to -11°C, but by nightfall, the temperature plunges to a teeth-chattering -22°C.

Saturday, December 21
Saturday shines bright under sunny skies, but it will be bitterly cold with a high of -17°C. Clear skies persist into the night, with a low of -20°C. Winter layers are a must!

Weather History: Sudbury’s Seasonal Extremes

On December 18, Sudbury’s warmest recorded temperature was a mild 6.1°C in 1984. On the flip side, the city once experienced a record low of -36.7°C in 1983.

What to Wear: Survival Mode

Today’s snow and cold demand waterproof boots, a heavy coat, and thermal gloves. Add a toque and scarf to block out that wind chill. Overnight, stay indoors unless absolutely necessary!

Did You Know?

Sudbury’s unique geography often creates localized snow events called “snowbelts.” These occur when moist air from nearby lakes cools rapidly, creating those snowy days that locals know all too well.

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