Weather Forecast for Cornwall, Ontario

Cornwall, Ontario experiences a humid continental climate with warm summers and cold winters. The average temperature in summer ranges from 20-25°C, while in winter, temperatures can drop to -10°C or lower. Precipitation is fairly evenly distributed throughout the year, with snowfall occurring from November to March.

In Cornwall, Ontario, the weather varies significantly throughout the year. Summer months (June to August) are warm and humid, with occasional thunderstorms. Fall (September to November) brings cooler temperatures and vibrant foliage. Winter (December to February) is cold with snowfall, while spring (March to May) sees temperatures gradually warming up.

Cornwall, Ontario experiences a variety of weather phenomena throughout the year. These can include thunderstorms in summer, snowstorms in winter, foggy conditions in spring, and occasional freezing rain events in fall. Residents should be prepared for these weather events and take necessary precautions.

The St. Lawrence River plays a significant role in shaping the weather in Cornwall, Ontario. It can moderate temperatures, leading to slightly milder conditions in winter and cooler temperatures in summer compared to inland areas. The river also contributes to increased humidity levels and can influence local wind patterns.

Due to its diverse weather conditions, Cornwall, Ontario offers a range of outdoor activities throughout the year. In summer, residents and visitors can enjoy boating, fishing, and hiking. Winter activities include skiing, snowshoeing, and ice skating. Spring and fall are ideal for exploring parks, biking, and birdwatching.