Monthly weather forecast and climate
Lewisville, TX

January, the same as December, is another fresh winter month in Lewisville, Texas, with average temperature fluctuating between 54.1°F (12.3°C) and 38.5°F (3.6°C). With an average high-temperature of 54.1°F (12.3°C) and an average low-temperature of 38.5°F (3.6°C), January is the coldest month. Weather in January »

The last month of the winter, February, is a mild month in Lewisville, Texas, with average temperature fluctuating between 57.7°F (14.3°C) and 42.1°F (5.6°C). In Lewisville, the average high-temperature in February is essentially the same as in January - a moderate 57.7°F (14.3°C). Weather in February »

March, the first month of the spring, in Lewisville, is a comfortable month, with average temperature ranging between min 50.4°F (10.2°C) and max 67.1°F (19.5°C). In March, the average high-temperature increases, from a moderate 57.7°F (14.3°C) in February, to a comfortable 67.1°F (19.5°C). Weather in March »

April in Lewisville, Texas, is a moderately hot spring month, with average temperature ranging between min 56.5°F (13.6°C) and max 74.8°F (23.8°C). In April, the average high-temperature marginally rises, from a comfortable 67.1°F (19.5°C) in March, to a warm 74.8°F (23.8°C). Weather in April »

May, the last month of the spring, in Lewisville, is also a moderately hot month, with average temperature varying between 82.2°F (27.9°C) and 64.8°F (18.2°C). In May, the average high-temperature slightly increases, from a warm 74.8°F (23.8°C) in April, to a still moderately hot 82.2°F (27.9°C). Weather in May »

The first month of the summer, June, is a hot month in Lewisville, Texas, with temperature in the range of an average low of 73.9°F (23.3°C) and an average high of 91.2°F (32.9°C). In Lewisville, the average high-temperature rises, from a warm 82.2°F (27.9°C) in May, to a tropical 91.2°F (32.9°C). Weather in June »

July in Lewisville, Texas, is a sweltering summer month, with temperature in the range of an average high of 95.2°F (35.1°C) and an average low of 76.6°F (24.8°C). In July, the average high-temperature is relatively the same as in June - a sweltering 95.2°F (35.1°C). Weather in July »

August, the last month of the summer, in Lewisville, is also a sweltering month, with average temperature ranging between max 96.3°F (35.7°C) and min 76.8°F (24.9°C). August is the warmest month, with an average high-temperature of 96.3°F (35.7°C) and an average low-temperature of 76.8°F (24.9°C). In August, the average heat index is appraised at a scorching 110.7°F (43.7°C). Weather in August »

September, the first month of the autumn, in Lewisville, is still a hot month, with average temperature varying between 88°F (31.1°C) and 70.7°F (21.5°C). In September, the average high-temperature slightly decreases, from a sweltering 96.3°F (35.7°C) in August, to a tropical 88°F (31.1°C). Weather in September »

October, the same as September, is a moderately hot autumn month in Lewisville, Texas, with average temperature varying between 76.1°F (24.5°C) and 58.6°F (14.8°C). In Lewisville, Texas, the average high-temperature in October drops, from a hot 88°F (31.1°C) in September, to a warm 76.1°F (24.5°C). Weather in October »

The last month of the autumn, November, is another comfortable month in Lewisville, Texas, with temperature in the range of an average low of 48.6°F (9.2°C) and an average high of 64.4°F (18°C). In November, the average high-temperature decreases, from a moderately hot 76.1°F (24.5°C) in October, to an enjoyable 64.4°F (18°C). Weather in November »

The first month of the winter, December, is still a cool month in Lewisville, Texas, with average temperature varying between 55.2°F (12.9°C) and 41.4°F (5.2°C). In Lewisville, the average high-temperature in December drops, from an enjoyable 64.4°F (18°C) in November, to a fresh 55.2°F (12.9°C). Weather in December »

What is the coldest month in Lewisville?

January is the coldest month in Lewisville, with an average high-temperature of 54.1°F (12.3°C) and an average low-temperature of 38.5°F (3.6°C).

How much does it rain in Lewisville?

Throughout the year, in Lewisville, there are 132.1 rainfall days, and 29.09" (739mm) of precipitation is accumulated.

What is the driest month in Lewisville?

Months with the least rainfall in Lewisville, Texas, are January and February Rain falls for 6.6 days and accumulates 1.57" (40mm) of rain.

When does it snow in Lewisville?

Months with snowfall are January through March, November and December.

How much does it snow in Lewisville?

Throughout the year, in Lewisville, there are 2.3 snowfall days, and 0.94" (24mm) of snow is accumulated.

What is the snowiest month in Lewisville?

The month with the most snowfall in Lewisville is February when snow falls for 1.1 days and typically aggregates up to 0.63" (16mm) of snow.

When it does not snow in Lewisville?

April through October are months without snowfall in Lewisville, Texas.

What is the most humid month in Lewisville?

May is the most humid month in Lewisville, with an average relative humidity of 71%.

What are the months with the highest UV index in Lewisville?

Months with the highest UV index are May through August, with an average maximum UV index of 7.

When are the longest days in Lewisville?

The month with the longest days is June, with an average of 14.3h of daylight.

What are the months with the most sunshine in Lewisville?

Months with the most sunshine in Lewisville, Texas, are July and August, with an average of 11h of sunshine.

What is the warmest month in Lewisville?

With an average high-temperature of 96.3°F (35.7°C) and an average low-temperature of 76.8°F (24.9°C), August is the warmest month in Lewisville, Texas.

What is the least humid month in Lewisville?

August is the least humid month in Lewisville, with an average relative humidity of 53%.

What is the wettest month in Lewisville?

October is the month with the most rainfall. Rain falls for 11.1 days and accumulates 3.74" (95mm) of precipitation.

What is the month with the shortest days in Lewisville?

The month with the shortest days in Lewisville is December, with an average of 10h of daylight.

What is the month with the least sunshine in Lewisville?

The month with the least sunshine is December, with an average of 5.6h of sunshine.

When is the lowest UV index in Lewisville?

December is the month with the lowest UV index in Lewisville, with an average maximum UV index of 3.
Average temperature - Lewisville, TX
Average pressure - Lewisville, TX

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.9").

Average wind speed - Lewisville, TX

The windiest months (with the highest average wind speed) are March and April (10.1mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).

Average rainfall - Lewisville, TX

The wettest month (with the highest rainfall) is October (3.74").
The driest months (with the least rainfall) are January and February (1.57").

Average rainfall days - Lewisville, TX

The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is January (6.6 days).

Average snowfall - Lewisville, TX

The month with the highest snowfall is February (0.63").
Months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days - Lewisville, TX

The month with the highest number of snowfall days is February (1.1 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight / Average sunshine - Lewisville, TX

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

Months with the most sunshine are July and August (Average sunshine: 11h).
The month with the least sunshine is December (Average sunshine: 5.6h).

Average sunshine days - Lewisville, TX

The month with the most sunshine days is January (23.2 days).
The month with the least sunshine days is September (14.9 days).

Average visibility - Lewisville, TX

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).