About Arnprior, 08's Climate & Weather History

Arnprior is a city of approximately 8,800 people in Ontario, Canada. Located in the Eastern Time Zone at 45.4°N latitude.

In 2025, Arnprior recorded an average annual temperature of 44°F. The hottest temperatures reached 92°F in August; the coolest were -8°F in March. Total precipitation for the year was 36 inches, with the wettest month being July. Snowfall for the year totaled approximately 24 inches.