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Climate & Weather Averages in Louisville, Maryland, USA

Currently: 76 °F. Passing clouds. (Weather station: Reagan National Airport, USA). See more current weather

Annual Weather Averages in Reagan National Airport

Reagan National Airport is 42 miles from Louisville, so the actual climate in Louisville can vary a bit.

Based on weather reports collected during 1992–2021.

All Year Climate & Weather Averages in Louisville

High Temp: 89 °F

Low Temp: 30 °F

Mean Temp: 59 °F

Precipitation: 3.53"

Humidity: 63%

Dew Point: 46 °F

Wind: 14 mph

Pressure: 30.06 "Hg

Visibility: 9 mi

January Climate & Weather Averages in Louisville

High Temp: 44 °F

Low Temp: 30 °F

Mean Temp: 37 °F

Precipitation: 2.83"

Humidity: 61%

Dew Point: 24 °F

Wind: 15 mph

Pressure: 30.12 "Hg

Visibility: 9 mi

February Climate & Weather Averages in Louisville

High Temp: 47 °F

Low Temp: 31 °F

Mean Temp: 40 °F

Precipitation: 2.77"

Humidity: 59%

Dew Point: 25 °F

Wind: 15 mph

Pressure: 30.11 "Hg

Visibility: 9 mi

March Climate & Weather Averages in Louisville

High Temp: 56 °F

Low Temp: 38 °F

Mean Temp: 47 °F

Precipitation: 3.48"

Humidity: 56%

Dew Point: 31 °F

Wind: 16 mph

Pressure: 30.08 "Hg

Visibility: 9 mi

April Climate & Weather Averages in Louisville

High Temp: 67 °F

Low Temp: 48 °F

Mean Temp: 57 °F

Precipitation: 3.25"

Humidity: 58%

Dew Point: 42 °F

Wind: 15 mph

Pressure: 30.01 "Hg

Visibility: 10 mi

May Climate & Weather Averages in Louisville

High Temp: 76 °F

Low Temp: 57 °F

Mean Temp: 67 °F

Precipitation: 4.04"

Humidity: 64%

Dew Point: 54 °F

Wind: 14 mph

Pressure: 30.01 "Hg

Visibility: 9 mi

June Climate & Weather Averages in Louisville

High Temp: 85 °F

Low Temp: 67 °F

Mean Temp: 76 °F

Precipitation: 4.31"

Humidity: 65%

Dew Point: 63 °F

Wind: 13 mph

Pressure: 29.98 "Hg

Visibility: 9 mi

July Climate & Weather Averages in Louisville

High Temp: 89 °F

Low Temp: 72 °F

Mean Temp: 81 °F

Precipitation: 4.36"

Humidity: 64%

Dew Point: 67 °F

Wind: 12 mph

Pressure: 29.99 "Hg

Visibility: 9 mi

August Climate & Weather Averages in Louisville

High Temp: 87 °F

Low Temp: 71 °F

Mean Temp: 79 °F

Precipitation: 3.47"

Humidity: 66%

Dew Point: 66 °F

Wind: 12 mph

Pressure: 30.02 "Hg

Visibility: 9 mi

September Climate & Weather Averages in Louisville

High Temp: 80 °F

Low Temp: 64 °F

Mean Temp: 72 °F

Precipitation: 3.96"

Humidity: 67%

Dew Point: 60 °F

Wind: 13 mph

Pressure: 30.06 "Hg

Visibility: 10 mi

October Climate & Weather Averages in Louisville

High Temp: 69 °F

Low Temp: 52 °F

Mean Temp: 61 °F

Precipitation: 3.73"

Humidity: 68%

Dew Point: 49 °F

Wind: 13 mph

Pressure: 30.08 "Hg

Visibility: 10 mi

November Climate & Weather Averages in Louisville

High Temp: 58 °F

Low Temp: 41 °F

Mean Temp: 49 °F

Precipitation: 2.94"

Humidity: 63%

Dew Point: 37 °F

Wind: 14 mph

Pressure: 30.14 "Hg

Visibility: 10 mi

December Climate & Weather Averages in Louisville

High Temp: 48 °F

Low Temp: 34 °F

Mean Temp: 41 °F

Precipitation: 3.22"

Humidity: 64%

Dew Point: 29 °F

Wind: 14 mph

Pressure: 30.13 "Hg

Visibility: 9 mi

Quick Climate Info

Hottest MonthJuly (81 °F avg)
Coldest MonthJanuary (37 °F avg)
Wettest MonthJuly (4.36" avg)
Windiest MonthMarch (16 mph avg)
Annual precip.42.36" (per year)

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