What weather to expect in Ontario
Ontario is part of Canada. Canada is a huge country, so the climate here varies from temperate in south to subarctic and arctic in north. Winters are sometimes tough, especially in the interior, where the climate is continental. You can expect snow in some places for five months of the year. Southern coastal parts of Canada have a temperate climate, with mild and rainy winters and quite warm summers.
When speaking about the usual weather in this area, the information is relevant for example for these popular places: Acton, Addington Highlands, Ajax, Algonquin Provincial Park, Almonte, Arnprior, Aurora, Aylmer, Bancroft, Barrie, Battersea, Bayham, Belleville, Blind River, Bobcaygeon, Bracebridge, Brampton, Brantford, Brock, Brockton, Brockville, Bruce County, Buckhorn, Burlington, Calabogie, Caledon, Cambridge, Carleton Place, Carp, Central Ontario, Chatham Kent, Clarington, Clinton, Cobalt, Cobourg, Cochrane, Collingwood, Cornwall, Dryden, Durham, East Gwillimbury, Eastern Ontario, Elgin County, Elliot Lake, Elmira, Elora, Embrun, Espanola, Essex, Essex County, Fergus, Fort Erie, Fort Frances, French River, Gananoque, Georgetown, Glen Williams, Golden Horseshoe, Grand Bend, Gravenhurst, Greater Toronto Area, Grey County, Grimsby, Guelph, Haliburton Highlands, Halton, Hamilton, Hanover, Hawkesbury, Hearst, Huntsville, Huron Kinloss, Huron County, Ingersoll, Ipperwash Beach, Kanata, Kapuskasing, Kawarthas, Kenora, Killaloe, Killarney, Kincardine, Kingston, Kingsville, Kirkland Lake, Kitchener, Lake Superior Provincial Park, Leamington, Leeds and the 1000 Islands, Limoges, Lincoln, Lindsay and Fenelon Falls, Lion's Head, London, Longlac, Lucan, Magnetawan, Manitoulin Island, Marathon, Markham, Maynooth, Merrickville, Midland, Milton, Mississauga, Moosonee, Morrisburg, Muskoka, Napanee, Newcastle, Newmarket, Niagara on the Lake, Niagara Falls, Niagara Peninsula, Nipigon, Norfolk County, North Algona Wilberforce, North Bay, Northern Ontario, Oakville, Orangeville, Orillia, Oshawa, Ottawa, Ottawa Rideau, Ottawa Valley, Owen Sound, Oxford County, Parry Sound, Peel, Pelee Island, Pembroke, Penetang, Perth, Petawawa, Peterborough, Pickering, Point Pelee National Park, Port Colborne, Port Dover, Port Hope, Port Stanley, Powassan, Prescott Russell, Prescott, Prince Edward County, Quetico Provincial Park, Quinte Northumberland, Red Rock, Region of Waterloo, Renfrew, Richmond Hill, Rockwood Conservation Area, Russell, Sarnia, Sault Sainte Marie, Scugog, Seaway Region, Simcoe County, Sioux Lookout, Smiths Falls, Southwestern Ontario, St. Catharines, St. Jacobs, St. Joseph Island, St. Marys, St. Thomas, Stratford, Sudbury, Temagami, Temiskaming Shores, Terrace Bay, Thunder Bay, Tillsonburg, Timmins, Tobermory, Toronto, Trenton, Tweed, Uxbridge, Vaughan, Verona, Village at Blue Mountain, Wasaga Beach, Waterloo, Waubaushene, Wawa, Welland, Wellington County, Westport, Whitby, White River, Wilno, Windsor, Woodstock, York, Zurich.
Let's look now what weather you can expect in the area around Toronto and in many other cities. The warmest month here is July, the average maximum temperature is 27.2 ℃ (80.96 ℉). The average minimum temperature in this month is 17.7 ℃ (63.86 ℉). The coldest month here is January, the average maximum temperature is -0.9 ℃ (30.38 ℉). The average minimum temperature in this month is -7.2 ℃ (19.04 ℉). The most rainy month here is January, the average number of rainy days is 15.3. The least rainy month here is July, the average number of rainy days is 10.3.
When travelling around Ontario, always consider the altitude of the the place as well. We should remind you, that the highest point in Canada is Mount Logan (5959 m) and the lowest point is Atlantic Ocean (0 m). So there are huge differences in altitudes in this country and the weather is very different in them therefore. Keep in mind, that the temperature usually decreases by 1.2 - 1.9 ℃ (2.2 - 3.5 ℉) per 200 m (656 ft), depending on the other conditions. (And we should add, that in the very special condition named thermal inversion even the temperature may be higher in higher altitudes.)
Please, keep in mind, that this is not a weather forecast, but the information about the usual weather (average). This should help you to decide, when is the best time to go to Ontario. Read more details about the typical weather there in all individual months below:January - February - March - April - May - June - July - August - September - October - November - December