Weather in Toronto

Toronto's climate is moderated by Lake Ontario; its climate is among the mildest in Canada. It receives significantly less snowfall during the winter than most other Canadian cities, and winters tend to be quite mild in comparison. However, recent years have shown a trend towards varying winter weather. During the winter months, daytime high temperatures average just a few degrees below freezing (although residents usually endure two or three cold snaps each year). Ironically, sunny days in Toronto during the winter tend to be the coldest. A typical snowfall during the winter will be no more than 10 cm (4 inches).

Summer high temperatures typically range from 25-30°C (77-86°F), though temperatures as high as 32°C (90°F), and sometimes higher, are not unexpected. Such "heat waves" generally last no more than a couple of days, and are usually coupled with high humidity and smog. On June 14, 2005, at the start of the summer, Toronto recorded it's 21st "smog warning" of the year, surpassing the previous annual record of 20, set in 2001.