Climate almanac
Perth
Ontario, Canada · 44.90°, -76.25°
What is the weather like in Perth in May?
In May, Perth is typically 65°F (19°C) during the day and 46°F (8°C) at night. The month brings about 3.5 in (88 mm) of precipitation in total. Snowfall averages about 0.1 in (3 mm) over the month.
- Average high65°F (19°C)
- Average low46°F (8°C)
- Precipitation3.5 in (88 mm)
- Clear or mostly clear days8
- Snowfall0.1 in (3 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)