Mississauga's winters are typically cold and snowy, with temperatures often below freezing, averaging around -4°C in January and remaining chilly until March. As spring approaches, temperatures gradually warm up, reaching a high of 21°C by March and consistently rising above 10°C from April onwards. Summer brings pleasant warmth, with July and August being the hottest months, while September sees a gentle cooling trend. Autumn is mild, with October temperatures similar to those in May, before dropping again into a cooler winter. The temperature fluctuations are moderate during spring and autumn, but significant dips occur in December and November.