Orillia, Ontario Climate: Humid Continental (Dfb) Details

Orillia sits in the Dfb zone—warm summers, cold snowy winters, no dry season.

Temperature

• Annual mean: 6.5 °C (43.7 °F)
• July (warmest): 20.6 °C (69.1 °F)
• January (coldest): –7.8 °C (18 °F)
• Extremes: 38.9 °C (1936) / –36.7 °C (1940)

Precipitation

• Annual: 943 mm (37.1 in)
• Wettest: September (114 mm)
• Driest: February (63 mm)

Snowfall

• Annual: 186 cm (73 in)
• Peak: February (53 cm)
• Snow-free: June–September

Data from Environment Canada normals (1981–2010).