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Ontario Canada
Precipitation in August
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August Rainfall Precipitation in Ontario

Ontario is a region in Canada. In August precipitation ranges from moderate in Niagara on the Lake with 47 mm of rainfall to high in Otter Lake with 113 mm of rainfall. August is a summer month in Ontario. It is the driest month of the year.

Where and how much does it rain in Ontario in August?

Find the average total precipitation in August for the most popular destinations in Ontario on the map below. Click on a destination dot for more detailed information.

Weather conditions Weather
Temperatures
Precipitation
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Legend heavy rainfall high moderate low almost none
Heavy rainfall has been defined as more than 160 mm precipitation. High: 90 mm to 160 mm. Moderate: 30 mm to 90 mm. Low: 5 mm to 30 mm.

  • How much rainfall does Ontario receive in August?
    • During August, Toronto often sees a mix of wet and dry days, with an average rainfall of around 68 mm. Going by our weather data, this month in usually has the least rain, making it the driest month of the year.

  • What is the wettest city in August in Ontario?
    • In our records, Otter Lake stands out as having an average precipitation level of 113 mm, making it the wettest location.

  • What is the driest city in August in Ontario?
    • Our figures indicate that Niagara on the Lake receives the least rainfall, averaging just 47 mm.

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