Annual Weather Averages Near Brockville
Averages are for Grenadier Island, which is 23 kilometers from Brockville.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Brockville
High Temp: 27 °C
Low Temp: -11 °C
Mean Temp: 8 °C
Precipitation: 59.2 mm
Humidity: 77%
Dew Point: 4 °C
Wind: 19 km/h
Pressure: 101.59 kPa
Visibility: 14 km
January Climate & Weather Averages in Brockville
High Temp: -2 °C
Low Temp: -11 °C
Mean Temp: -6 °C
Precipitation: 37.6 mm
Humidity: 81%
Dew Point: -10 °C
Wind: 20 km/h
Pressure: 101.68 kPa
Visibility: 12 km
February Climate & Weather Averages in Brockville
High Temp: -1 °C
Low Temp: -10 °C
Mean Temp: -5 °C
Precipitation: 30.3 mm
Humidity: 77%
Dew Point: -9 °C
Wind: 20 km/h
Pressure: 101.67 kPa
Visibility: 13 km
March Climate & Weather Averages in Brockville
High Temp: 4 °C
Low Temp: -5 °C
Mean Temp: -1 °C
Precipitation: 40.2 mm
Humidity: 72%
Dew Point: -6 °C
Wind: 21 km/h
Pressure: 101.69 kPa
Visibility: 13 km
April Climate & Weather Averages in Brockville
High Temp: 12 °C
Low Temp: 1 °C
Mean Temp: 7 °C
Precipitation: 49.7 mm
Humidity: 68%
Dew Point: 0 °C
Wind: 22 km/h
Pressure: 101.47 kPa
Visibility: 14 km
May Climate & Weather Averages in Brockville
High Temp: 19 °C
Low Temp: 8 °C
Mean Temp: 14 °C
Precipitation: 77.5 mm
Humidity: 70%
Dew Point: 8 °C
Wind: 18 km/h
Pressure: 101.49 kPa
Visibility: 15 km
June Climate & Weather Averages in Brockville
High Temp: 24 °C
Low Temp: 13 °C
Mean Temp: 19 °C
Precipitation: 89.5 mm
Humidity: 76%
Dew Point: 14 °C
Wind: 16 km/h
Pressure: 101.35 kPa
Visibility: 14 km
July Climate & Weather Averages in Brockville
High Temp: 27 °C
Low Temp: 16 °C
Mean Temp: 21 °C
Precipitation: 97.2 mm
Humidity: 77%
Dew Point: 17 °C
Wind: 16 km/h
Pressure: 101.37 kPa
Visibility: 14 km
August Climate & Weather Averages in Brockville
High Temp: 26 °C
Low Temp: 15 °C
Mean Temp: 21 °C
Precipitation: 88.4 mm
Humidity: 78%
Dew Point: 16 °C
Wind: 15 km/h
Pressure: 101.54 kPa
Visibility: 14 km
September Climate & Weather Averages in Brockville
High Temp: 22 °C
Low Temp: 11 °C
Mean Temp: 17 °C
Precipitation: 64.6 mm
Humidity: 80%
Dew Point: 13 °C
Wind: 16 km/h
Pressure: 101.71 kPa
Visibility: 14 km
October Climate & Weather Averages in Brockville
High Temp: 15 °C
Low Temp: 6 °C
Mean Temp: 10 °C
Precipitation: 62.0 mm
Humidity: 79%
Dew Point: 6 °C
Wind: 19 km/h
Pressure: 101.66 kPa
Visibility: 14 km
November Climate & Weather Averages in Brockville
High Temp: 8 °C
Low Temp: 0 °C
Mean Temp: 4 °C
Precipitation: 41.6 mm
Humidity: 79%
Dew Point: 0 °C
Wind: 20 km/h
Pressure: 101.73 kPa
Visibility: 14 km
December Climate & Weather Averages in Brockville
High Temp: 2 °C
Low Temp: -6 °C
Mean Temp: -2 °C
Precipitation: 32.2 mm
Humidity: 83%
Dew Point: -5 °C
Wind: 20 km/h
Pressure: 101.67 kPa
Visibility: 13 km