The Weather Network
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Historical Averages

Sarnia, ON

-14°0°14°28°
021

Historical Average

High °C
Feels
Low °C
Feels
Rain (mm)
Snow (cm)
More weather details below

Historical Monthly Averages in Sarnia

19°
High
8°
Low
18
7
Feels
7
Days of Precip
21mm
Rain
0cm
Snow
57%
Cloud Cover
68%
Humidity
12km/h
Wind Speed
Historical Averages based on data recorded from 2000 to 2024.