Mississauga's Climate
Mississauga sits on the northwestern shore of Lake Ontario in the Canadian province of Ontario and has a humid continental climate with four distinct seasons moderated by the lake. Summers (June–August) are warm and sometimes muggy at 24–29°C, with afternoon thunderstorms and high humidity, while winters (December–March) turn frigid, often -5 to -12°C, with plenty of snow and biting winds off the lake. Spring is cool and damp, and autumn (September–November) is dry and crisp with brilliant fall foliage. Lake-effect snow boosts early-winter totals.