Complete 2015 Long-Range Weather Forecast for the Southern Ontario Region, November 2014 to October 2015 includes week-by-week details.
Free 2-Month Weather Forecast
DECEMBER 2014: temperature -4°C (2°C below avg. east, 2°C above west); precipitation 40mm (avg.); Dec 1-3: Snowstorm, then sunny, mild; Dec 4-11: Snowstorm, then snow showers, cold; Dec 12-16: Snowstorm, then flurries east and central; sunny, mild, then cold west; Dec 17-24: Snow showers, some heavy; very cold, then mild; Dec 25-31: Snowstorm, then flurries and lake snows, cold.
JANUARY 2015: temperature -11°C (2°C below avg.); precipitation 35mm (20mm below avg. east, 10mm above west); Jan 1-10: Flurries; cold, then mild; Jan 11-17: Snow showers, very cold; Jan 18-21: Rain and snow showers, mild; Jan 22-26: Rain east, snow west, then sunny, mild; Jan 27-31: Snow showers; cold, then mild.
Annual Weather Summary: November 2014 to October 2015
Winter temperatures and precipitation will be below normal, with the coldest periods in mid-December, early and mid-January, and early to mid-February. Snowfall will be below normal in Southwest Ontario and above normal elsewhere, with the snowiest periods in December and mid- to late March.
April and May temperatures will be near normal, with precipitation below normal east, above west.
Summer will be warmer than normal, with the hottest temperatures in mid- to late July and early August. Rainfall will be above normal in the east and below in the west.
September and October will be warmer than normal, with precipitation below normal in the east and above in the west.