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(Nov. 2011 - Oct. 2012)
Complete 2012 Long-Range Weather Forecast for the Southern Ontario Region, November 2011 to October 2012 includes week-by-week details.
Free 2-Month Weather Forecast

MAY 2012: temperature 10°C (2.5°C below avg.); precipitation 25mm (40mm below avg.); May 1-5: Rain, cool; May 6-16: Showers, cool; May 17-20: Sunny, warrm; May 21-28: Showers, then sunny, warm; May 29-31: T-storms.
JUNE 2012: temperature 17.5°C (1°C above avg. east, 1°C below west); precipitation 105mm (50mm above avg. east, avg. west); Jun 1-4: Heavy rain, then showers, warm; Jun 5-10: Scattered t-storms, hot; Jun 11-13: Sunny, cool; Jun 14-22: Scattered t-storms, then sunny, cool; Jun 23-30: T-storms, warm, then sunny, cool.
Annual Weather Summary: November 2011 to October 2012
Winter temperatures will be about a degree C below normal, on average, with the coldest temperatures in late November, mid- and late December, mid- and late January, and early February. Precipitation and snowfall will be above normal in the east and slightly below normal in the west. The snowiest periods will be in early January, mid- to late January, and early February.
April and May will be cooler and drier than normal across most of the region.
Summer will be cooler and drier than normal, with the hottest temperatures in early June and mid-July.
September and October will be cooler and slightly rainier than normal in the east, while the west will be drier than normal, with near-normal temperatures, on average.
Temperature and Precipitation November 2011 to October 2012







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