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Climate & Weather Averages in Mount Vernon, Ohio, USA

Currently: 34 °F. Fog. (Weather station: Knox County Airport, USA). See more current weather

Annual Weather Averages Near Mount Vernon

Averages are for Knox County Airport, which is 5 miles from Mount Vernon.

Based on weather reports collected during 2012–2021.

All Year Climate & Weather Averages in Mount Vernon

High Temp: 82 °F

Low Temp: 13 °F

Mean Temp: 47 °F

Precipitation: 3.05"

Humidity: 69%

Dew Point: 43 °F

Wind: 11 mph

Pressure: 30.05 "Hg

Visibility: 9 mi

January Climate & Weather Averages in Mount Vernon

High Temp: 31 °F

Low Temp: 13 °F

Mean Temp: 22 °F

Precipitation: 2.05"

Humidity: 71%

Dew Point: 22 °F

Wind: 14 mph

Pressure: 30.12 "Hg

Visibility: 9 mi

February Climate & Weather Averages in Mount Vernon

High Temp: 34 °F

Low Temp: 13 °F

Mean Temp: 23 °F

Precipitation: 2.02"

Humidity: 69%

Dew Point: 23 °F

Wind: 13 mph

Pressure: 30.09 "Hg

Visibility: 8 mi

March Climate & Weather Averages in Mount Vernon

High Temp: 43 °F

Low Temp: 22 °F

Mean Temp: 33 °F

Precipitation: 1.95"

Humidity: 64%

Dew Point: 30 °F

Wind: 13 mph

Pressure: 30.09 "Hg

Visibility: 9 mi

April Climate & Weather Averages in Mount Vernon

High Temp: 56 °F

Low Temp: 33 °F

Mean Temp: 45 °F

Precipitation: 3.16"

Humidity: 61%

Dew Point: 39 °F

Wind: 13 mph

Pressure: 29.99 "Hg

Visibility: 9 mi

May Climate & Weather Averages in Mount Vernon

High Temp: 70 °F

Low Temp: 46 °F

Mean Temp: 58 °F

Precipitation: 3.49"

Humidity: 67%

Dew Point: 52 °F

Wind: 10 mph

Pressure: 30.00 "Hg

Visibility: 9 mi

June Climate & Weather Averages in Mount Vernon

High Temp: 77 °F

Low Temp: 53 °F

Mean Temp: 65 °F

Precipitation: 4.23"

Humidity: 67%

Dew Point: 60 °F

Wind: 10 mph

Pressure: 29.96 "Hg

Visibility: 9 mi

July Climate & Weather Averages in Mount Vernon

High Temp: 82 °F

Low Temp: 60 °F

Mean Temp: 71 °F

Precipitation: 4.33"

Humidity: 72%

Dew Point: 65 °F

Wind: 7 mph

Pressure: 29.99 "Hg

Visibility: 9 mi

August Climate & Weather Averages in Mount Vernon

High Temp: 80 °F

Low Temp: 57 °F

Mean Temp: 69 °F

Precipitation: 3.12"

Humidity: 74%

Dew Point: 63 °F

Wind: 6 mph

Pressure: 30.01 "Hg

Visibility: 8 mi

September Climate & Weather Averages in Mount Vernon

High Temp: 74 °F

Low Temp: 49 °F

Mean Temp: 61 °F

Precipitation: 2.83"

Humidity: 73%

Dew Point: 57 °F

Wind: 7 mph

Pressure: 30.06 "Hg

Visibility: 8 mi

October Climate & Weather Averages in Mount Vernon

High Temp: 62 °F

Low Temp: 41 °F

Mean Temp: 51 °F

Precipitation: 3.93"

Humidity: 71%

Dew Point: 46 °F

Wind: 10 mph

Pressure: 30.04 "Hg

Visibility: 9 mi

November Climate & Weather Averages in Mount Vernon

High Temp: 47 °F

Low Temp: 28 °F

Mean Temp: 37 °F

Precipitation: 2.35"

Humidity: 68%

Dew Point: 32 °F

Wind: 11 mph

Pressure: 30.15 "Hg

Visibility: 9 mi

December Climate & Weather Averages in Mount Vernon

High Temp: 38 °F

Low Temp: 21 °F

Mean Temp: 30 °F

Precipitation: 3.16"

Humidity: 74%

Dew Point: 29 °F

Wind: 12 mph

Pressure: 30.09 "Hg

Visibility: 8 mi

Quick Climate Info

Hottest MonthJuly (71 °F avg)
Coldest MonthJanuary (22 °F avg)
Wettest MonthJuly (4.33" avg)
Windiest MonthJanuary (14 mph avg)
Annual precip.36.62" (per year)

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