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Climate & Weather Averages in Brockville, Ontario, Canada

Currently: 22 °F. Cold. (Weather station: Grenadier Island, Canada). See more current weather

Annual Weather Averages Near Brockville

Averages are for Grenadier Island, which is 14 miles from Brockville.

Based on weather reports collected during 1992–2021.

All Year Climate & Weather Averages in Brockville

High Temp: 80 °F

Low Temp: 12 °F

Mean Temp: 47 °F

Precipitation: 2.33"

Humidity: 77%

Dew Point: 38 °F

Wind: 12 mph

Pressure: 30.00 "Hg

Visibility: 9 mi

January Climate & Weather Averages in Brockville

High Temp: 29 °F

Low Temp: 12 °F

Mean Temp: 21 °F

Precipitation: 1.48"

Humidity: 81%

Dew Point: 14 °F

Wind: 13 mph

Pressure: 30.03 "Hg

Visibility: 8 mi

February Climate & Weather Averages in Brockville

High Temp: 31 °F

Low Temp: 14 °F

Mean Temp: 22 °F

Precipitation: 1.19"

Humidity: 77%

Dew Point: 15 °F

Wind: 12 mph

Pressure: 30.02 "Hg

Visibility: 8 mi

March Climate & Weather Averages in Brockville

High Temp: 40 °F

Low Temp: 22 °F

Mean Temp: 31 °F

Precipitation: 1.58"

Humidity: 72%

Dew Point: 22 °F

Wind: 13 mph

Pressure: 30.03 "Hg

Visibility: 8 mi

April Climate & Weather Averages in Brockville

High Temp: 54 °F

Low Temp: 35 °F

Mean Temp: 44 °F

Precipitation: 1.95"

Humidity: 68%

Dew Point: 32 °F

Wind: 13 mph

Pressure: 29.96 "Hg

Visibility: 9 mi

May Climate & Weather Averages in Brockville

High Temp: 67 °F

Low Temp: 46 °F

Mean Temp: 56 °F

Precipitation: 3.05"

Humidity: 70%

Dew Point: 46 °F

Wind: 11 mph

Pressure: 29.97 "Hg

Visibility: 9 mi

June Climate & Weather Averages in Brockville

High Temp: 75 °F

Low Temp: 55 °F

Mean Temp: 65 °F

Precipitation: 3.52"

Humidity: 76%

Dew Point: 57 °F

Wind: 10 mph

Pressure: 29.93 "Hg

Visibility: 9 mi

July Climate & Weather Averages in Brockville

High Temp: 80 °F

Low Temp: 61 °F

Mean Temp: 70 °F

Precipitation: 3.83"

Humidity: 77%

Dew Point: 62 °F

Wind: 10 mph

Pressure: 29.93 "Hg

Visibility: 9 mi

August Climate & Weather Averages in Brockville

High Temp: 79 °F

Low Temp: 60 °F

Mean Temp: 69 °F

Precipitation: 3.48"

Humidity: 78%

Dew Point: 61 °F

Wind: 9 mph

Pressure: 29.98 "Hg

Visibility: 9 mi

September Climate & Weather Averages in Brockville

High Temp: 72 °F

Low Temp: 53 °F

Mean Temp: 62 °F

Precipitation: 2.54"

Humidity: 80%

Dew Point: 55 °F

Wind: 10 mph

Pressure: 30.03 "Hg

Visibility: 9 mi

October Climate & Weather Averages in Brockville

High Temp: 59 °F

Low Temp: 42 °F

Mean Temp: 50 °F

Precipitation: 2.44"

Humidity: 79%

Dew Point: 43 °F

Wind: 12 mph

Pressure: 30.02 "Hg

Visibility: 9 mi

November Climate & Weather Averages in Brockville

High Temp: 46 °F

Low Temp: 32 °F

Mean Temp: 39 °F

Precipitation: 1.64"

Humidity: 79%

Dew Point: 32 °F

Wind: 13 mph

Pressure: 30.04 "Hg

Visibility: 8 mi

December Climate & Weather Averages in Brockville

High Temp: 35 °F

Low Temp: 22 °F

Mean Temp: 28 °F

Precipitation: 1.27"

Humidity: 83%

Dew Point: 22 °F

Wind: 13 mph

Pressure: 30.02 "Hg

Visibility: 8 mi

Quick Climate Info

Hottest MonthJuly (70 °F avg)
Coldest MonthJanuary (21 °F avg)
Wettest MonthJuly (3.83" avg)
Windiest MonthApril (13 mph avg)
Annual precip.27.98" (per year)

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