Weather in Ontario in March
Ontario, United States averages a high of 19.8°C (67.6°F) and low of 8.4°C (47.1°F) in March, with 6 rain days and 10.5 hours of daily sunshine. Travel score: 81.7/100 (Excellent). The best time to visit Ontario is July.
High
20°C68°F
Low
8°C47°F
🌧️
6
rain days
☀️
10.5
hrs/day sunshine
💧
67%
humidity
82— Excellent
March in Ontario is mild and mostly dry — excellent conditions for exploring.
What are the average temperatures in Ontario?
How much does it rain in Ontario in March?
Ontario receives an average of 61.8mm of rainfall across 6 rainy days in March. The annual total is 403.1mm.
What should I pack for Ontario in March?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 20°C
Recommended
🧴
Sunscreen
Sun protection is still recommended
🕶️
Sunglasses
Useful for sunny periods
🎉Visiting United States in March?
Don't miss any public holidays — check before you book!
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Data based on 1994–2024 averages · Last updated: 2024-12-31