Thorold (ON) Weather & Climate: Best Time to Visit

Depending on the time of the year, temperatures range from comfortable to very cold in Thorold. Average daytime temperatures reach a comfortable 26°C (79°F) in July. In February, the coolest month of the year, temperatures drop to a very cold 1°C (34°F).

At night, temperatures range from around 20°C (68°F) in July to -6°C (21°F) in February.

Check out our detailed temperature page for more information.

Temperature ranges by month

Thorold has a relatively rain/snowy climate with high precipitation levels, averaging 1100 mm (43 in) of rain/snowfall annually. Despite minor fluctuations, Thorold enjoys fairly consistent precipitation throughout the year. In June, you can expect around 105 mm (4.1 in) of precipitation, while in February, Thorold receives about 73 mm (2.9 in). For more details, please visit our Thorold Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Thorold can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 10.2 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 2.3 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Thorold.

The city experiences its highest humidity in December, reaching 77%. In April, the humidity drops to its lowest level at 67%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year