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Climate & Weather Averages in Lewisville, Texas, USA

Currently: 79 °F. Clear. (Weather station: Dallas / Addison Airport, USA). See more current weather

Annual Weather Averages Near Lewisville

Averages are for Dallas / Addison Airport, which is 11 miles from Lewisville.

Based on weather reports collected during 1992–2021.

All Year Climate & Weather Averages in Lewisville

High Temp: 96 °F

Low Temp: 39 °F

Mean Temp: 68 °F

Precipitation: 2.37"

Humidity: 62%

Dew Point: 52 °F

Wind: 17 mph

Pressure: 30.02 "Hg

Visibility: 11 mi

January Climate & Weather Averages in Lewisville

High Temp: 57 °F

Low Temp: 39 °F

Mean Temp: 48 °F

Precipitation: 1.97"

Humidity: 62%

Dew Point: 34 °F

Wind: 16 mph

Pressure: 30.14 "Hg

Visibility: 11 mi

February Climate & Weather Averages in Lewisville

High Temp: 61 °F

Low Temp: 42 °F

Mean Temp: 52 °F

Precipitation: 2.36"

Humidity: 63%

Dew Point: 37 °F

Wind: 18 mph

Pressure: 30.09 "Hg

Visibility: 10 mi

March Climate & Weather Averages in Lewisville

High Temp: 69 °F

Low Temp: 50 °F

Mean Temp: 60 °F

Precipitation: 2.41"

Humidity: 61%

Dew Point: 44 °F

Wind: 19 mph

Pressure: 30.03 "Hg

Visibility: 11 mi

April Climate & Weather Averages in Lewisville

High Temp: 76 °F

Low Temp: 57 °F

Mean Temp: 67 °F

Precipitation: 2.52"

Humidity: 61%

Dew Point: 51 °F

Wind: 20 mph

Pressure: 29.95 "Hg

Visibility: 11 mi

May Climate & Weather Averages in Lewisville

High Temp: 83 °F

Low Temp: 66 °F

Mean Temp: 75 °F

Precipitation: 3.02"

Humidity: 66%

Dew Point: 61 °F

Wind: 19 mph

Pressure: 29.93 "Hg

Visibility: 11 mi

June Climate & Weather Averages in Lewisville

High Temp: 91 °F

Low Temp: 74 °F

Mean Temp: 82 °F

Precipitation: 2.78"

Humidity: 63%

Dew Point: 68 °F

Wind: 17 mph

Pressure: 29.92 "Hg

Visibility: 11 mi

July Climate & Weather Averages in Lewisville

High Temp: 95 °F

Low Temp: 78 °F

Mean Temp: 86 °F

Precipitation: 1.32"

Humidity: 57%

Dew Point: 68 °F

Wind: 16 mph

Pressure: 29.97 "Hg

Visibility: 11 mi

August Climate & Weather Averages in Lewisville

High Temp: 96 °F

Low Temp: 77 °F

Mean Temp: 86 °F

Precipitation: 1.72"

Humidity: 55%

Dew Point: 67 °F

Wind: 15 mph

Pressure: 29.97 "Hg

Visibility: 11 mi

September Climate & Weather Averages in Lewisville

High Temp: 89 °F

Low Temp: 71 °F

Mean Temp: 80 °F

Precipitation: 2.46"

Humidity: 59%

Dew Point: 63 °F

Wind: 14 mph

Pressure: 29.99 "Hg

Visibility: 11 mi

October Climate & Weather Averages in Lewisville

High Temp: 79 °F

Low Temp: 60 °F

Mean Temp: 69 °F

Precipitation: 3.52"

Humidity: 62%

Dew Point: 54 °F

Wind: 16 mph

Pressure: 30.03 "Hg

Visibility: 11 mi

November Climate & Weather Averages in Lewisville

High Temp: 67 °F

Low Temp: 49 °F

Mean Temp: 58 °F

Precipitation: 2.06"

Humidity: 64%

Dew Point: 44 °F

Wind: 16 mph

Pressure: 30.11 "Hg

Visibility: 11 mi

December Climate & Weather Averages in Lewisville

High Temp: 59 °F

Low Temp: 41 °F

Mean Temp: 50 °F

Precipitation: 2.31"

Humidity: 65%

Dew Point: 36 °F

Wind: 16 mph

Pressure: 30.12 "Hg

Visibility: 11 mi

Quick Climate Info

Hottest MonthAugust (86 °F avg)
Coldest MonthJanuary (48 °F avg)
Wettest MonthOctober (3.52" avg)
Windiest MonthApril (20 mph avg)
Annual precip.28.46" (per year)

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