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Temperatures By Season

Toronto is located in a temperate climate zone, although the temperature can vary quite a bit over the course of a year. While the stereotypical view of Canada might be a snow-bound country where people live in an eternal winter, visitors will be pleasantly surprise to find this is certainly not the case. 

Toronto has some of the mildest weather in Canada. Although spring and fall are moderate, the summer can get downright hot. Many locals and tourists receive the latest weather updates at www.theweathernetwork.com

Toronto Summer and Spring 

Spring in Toronto tends to be cool and rainy, with lingering chances of frost and snow well into the month of April. Average temperatures for the month of April range from a daily maximum of 11.3 C (53F) to a minimum of 3.8 C (39F). 

By May, the trees are green with leaves, the flowers are in bloom and the temperature can rise to an average daily maximum of 18.5 C (65F).

As summer arrives, temperatures continue to go up along with the relative humidity. Toronto is known for having somewhat hot and humid summers. This can occasionally create trouble for the city. 

The long stretches of hot weather combined with heavy humidity and pollution can create smog. These conditions can create problems for the elderly and other vulnerable individuals. But not to worry, only a few days like that occur each summer. 

The height of the season is July and August, when temperatures can rise above 30 C (86F) and the city is generously bathed in sunny weather. Toronto enjoys an average of 276 hours of sunshine in July — almost nine hours a day! 

The average temperature for the month of July ranges from a daily high of 26.5 C (80F) to a low of 17.6 C (64F) at night. These temperatures continue through August, where the average daily maximum is 25.3 C (78F).

Although spring in Toronto has many rainy days, precipitation is fairly consistent all the way through the summer. The only difference is that the summer rainfall often comes in the form of thunderstorms. Such storms offer up a spectacular sound and light show. You should watch a storm in view of one of the world’s largest lightning rods — the CN Tower!

Toronto Fall and Winter

The city’s warm weather extends into September, and it is not until October that the leaves begin to change colours and crisp fall breezes return. The average temperatures for the month of October ranges from a daily maximum of 14.2 C (58F) to a minimum of 7.2 C (45F).

The first real snowflakes rarely appear in Toronto’s skies before November. Although sub-zero temperatures are common in late November to March, the city enjoys a relatively mild climate thanks to the moderating lake effects of Lake Ontario. 

Toronto temperatures routinely drop into the double-digit minuses, but they tend to hover above the freezing point just as often.  

Even so, Toronto is at its coldest in January, when even the daily maximum temperatures drop below zero. The average daily maximum in January is -1.1 C (30F), while the average daily minimum is -7.3 C (19F). 

February is marginally warmer, with an average range of -0.2 C (32F) to -6.3 C (21F).

The city’s average annual snowfall over the course of the winter is 133.1 cm (4’4″), comparable to American cities like Boston (105 cm), Detroit (104 cm) and Chicago (98 cm).

The city tends to receive several large snowstorms though out the year, sometimes as a result of lake-effect snow coming from the Great Lakes. However, as you might expect from a Canadian city, Toronto is well prepared for such storms with an army of snow plows and salt trucks on standby.

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