This Friday, March 20, marks this year's first and only total eclipse of the sun, when the moon passes directly between Earth and the sun. Not only that, this is an extremely rare type of solar eclipse because it takes place on the first day of spring and when the moon is at its closest distance to Earth, known as a supermoon.
Relative Humidity in Toronto, Ontario, Canada. The average annual relative humidity is 61.1% and average monthly relative humidity ranges from 54% in July to 71% in January.
Toronto Weather-Summer. Toronto summers are hot and humid. The effect of Lake Ontario cools the city a bit, but also brings the humidity. Temperatures hover in the 80s and sometimes 90s. Expect rain about 10 days out of 31 in July.