Climate Data Cornwall
Ontario, Canada
Monthly Averages. Elevation: 57m.
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Best Time to Visit: Jun, Jul, Aug. Rainiest: Jun (95 mm). View current weather →
986 mm
27 °C
Jul -15 °C
Jan 13 km/h
Cornwall has a mild climate with cool winters (Jan -15°C) and warm summers (Jul 27°C). Annual rainfall totals 986mm.
Monthly Averages
High Low Precipitation
Monthly Wind Speed
km/h
Frequently Asked Questions
What is the climate like in Cornwall?
Cornwall has an average annual temperature of 6°C with 986mm of rainfall per year. The warmest month is Jul (27°C) and the coldest is Jan (-15°C).
What is the hottest month in Cornwall?
The hottest month in Cornwall is Jul, with an average high of 27°C.
How much rain does Cornwall get?
Cornwall receives 986mm of precipitation annually. The wettest month is Jun (95mm) and the driest is Mar (61mm).
When is the best time to visit Cornwall?
The best time to visit Cornwall is during Jun, Jul, Aug, when temperatures are comfortable and rainfall is relatively low.
Data: WorldClim 2.1