Cornwall Precipitation: Average Monthly Rainfall and Snowfall

This graph shows the average amount of rainfall per month in Cornwall (Ontario). The numbers are calculated over a 30-year period to provide a reliable average.

Most rainfall (rainy season) is seen in June and October.
On average, October is the wettest month with 115 mm of precipitation.
On average, March is the driest month with 57 mm of precipitation.
The average amount of annual precipitation is 1006 mm.

Current rainfall in Cornwall

Tue Nov 05

23°C | 8°C

22 km/h

partly cloudy and no rain

hourly forecast

Wed Nov 06

21°C | 10°C

25 km/h

0.8 mm

broken clouds and rain

hourly forecast

Thu Nov 07

12°C | 4°C

18 km/h

0.4 mm

partly cloudy and chance of slight rain

hourly forecast

5-Day Forecast 10-Day Forecast

Interested in more climate information?

This site provides you with all the information you need about the climate in Cornwall.

Our site offers climate and forecast data for every country in the world. Are you going to Canada? On this website you can find historical weather averages for many cities in Canada. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Travel Inspiration

The 5 most beautiful lakes in Canada

Explore Canada's stunning lakes: Lake Louise, Lake Superior, Maligne Lake, Emerald Lake, and Lake Okanagan, each offering unique beauty and activities.

Canoeing the south Nahannii

The South Nahanni in the northwest of Canada is one of the most impressive wilderness rivers in the world. Canoeing the south Nahanni is something you must add to your bucket list.

Drive the Dempster highway

The Dempster highway, the world's northernmost highway and one of the most spectacular routes in North America. The Dempster Highway is one for the bucket list.

See Polar Bears in Churchill Canada

Thousands of bears gather at the small town of Churchill. In the evening the northern lights give a light show against the dark evening sky. An unforgettable experience.