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Ontario Canada
Precipitation in May
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May Rainfall Precipitation in Ontario

Ontario is a region in Canada. In May precipitation ranges from moderate in Niagara on the Lake with 47 mm of rainfall to high in London with 102 mm of rainfall.

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

Find the average total precipitation in May 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 May?
    • With an average of 80 mm of rain, Toronto in May often alternates between wet and dry periods.

  • What is the wettest city in May in Ontario?
    • Our data indicates that London holds the record for the most average rainfall with 102 mm.

  • What is the driest city in May in Ontario?
    • The driest place is Niagara on the Lake with an average precipitation of 47 mm according to our data.

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