December weather forecast
Lewisville, IN

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Weather in December

December, the first month of the winter in Lewisville, is still a cold month, with an average temperature varying between 27.9°F (-2.3°C) and 37.9°F (3.3°C).

Temperature

Lewisville in December undergoes a mild reduction in the average high-temperature, shifting from November's frosty 48.6°F (9.2°C) to an icy 37.9°F (3.3°C). Lewisville usually reports an average low-temperature of 27.9°F (-2.3°C) during the month of December.

Humidity

January and December, with an average relative humidity of 83%, are the most humid months in Lewisville.

Rainfall

In Lewisville, in December, during 10.3 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Lewisville, during the entire year, the rain falls for 169.4 days and collects up to 31.77" (807mm) of precipitation.

Snowfall

Months with snowfall in Lewisville are January through April, October through December. In Lewisville, during December, snow falls for 9.9 days and regularly aggregates up to 3.27" (83mm) of snow. In Lewisville, during the entire year, snow falls for 42.7 days and aggregates up to 13.82" (351mm) of snow.

Daylight

The month with the shortest days in Lewisville is December, with an average of 9h and 24min of daylight.
On the first day of December in Lewisville, Indiana, sunrise is at 7:44 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 5:26 pm EST.

Sunshine

In Lewisville, the average sunshine in December is 4h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 1 during December translates into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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Frequently asked questions

How cold is it in Lewisville in December?

The high-temperature, in December, in Lewisville, is 37.9°F (3.3°C), while the low-temperature averages to 27.9°F (-2.3°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in July is evaluated at 86°F (30°C).

What is the most humid month in Lewisville?

January and December, with an average relative humidity of 83%, are most humid months in Lewisville.

What is the average humidity in December in Lewisville?

In Lewisville, the average relative humidity in December is 83%.

How many days does it rain in December in Lewisville?

In December, the rain falls for 10.3 days. Throughout December, 2.28" (58mm) of precipitation is accumulated.

How many days does it snow in December in Lewisville?

In Lewisville, during December, snow falls for 9.9 days and regularly aggregates up to 3.27" (83mm) of snow.

What is the month with the shortest days in Lewisville?

December has the shortest days of the year in Lewisville, with an average of 9h and 24min of daylight.

How many hours of daylight does Lewisville have in December?

In Lewisville, Indiana, the average day length in December is 9h and 25min.

What time are sunrise and sunset in December in Lewisville?

On the first day of December in Lewisville, Indiana, sunrise is at 7:44 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 5:26 pm EST.

How long on average sun shines in December in Lewisville?

The average sunshine duration in December in Lewisville, Indiana, is 4h.

What is the month with the lowest UV index in Lewisville?

With an average maximum UV index of 1, December is the month with the lowest UV index in Lewisville.

How high is the UV index in December in Lewisville?

In Lewisville, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Lewisville, IN

Average temperature in December - Lewisville, IN
  • Average high temperature in December: 37.9°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (32.2°F).

  • Average low temperature in December: 27.9°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

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Average pressure in December
Lewisville, IN

Average pressure in December - Lewisville, IN
  • Average pressure in December: 30.12"Hg

The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Lewisville, IN

Average wind speed in December - Lewisville, IN
  • Average wind speed in December: 9.6mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in December
Lewisville, IN

Average humidity in December - Lewisville, IN
  • Average humidity in December: 83%

The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in December
Lewisville, IN

Average rainfall in December - Lewisville, IN
  • Average rainfall in December: 2.28"

The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is February (1.85").

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Average rainfall days in December
Lewisville, IN

Average rainfall days in December - Lewisville, IN
  • Average rainfall days in December: 10.3 days

The month with the highest number of rainy days is May (19.7 days).
The month with the least rainy days is February (8.8 days).

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Average snowfall in December
Lewisville, IN

Average snowfall in December - Lewisville, IN
  • Average snowfall in December: 3.27"

The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Lewisville, IN

Average snowfall days in December - Lewisville, IN
  • Average snowfall days in December: 9.9 days

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Lewisville, IN

Average daylight in December / Average sunshine in December - Lewisville, IN
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 4h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in December
Lewisville, IN

Average sunshine days in December - Lewisville, IN
  • Average sunshine days in December: 13 days

The months with the most sunshine days are October and November (16.1 days).
The month with the least sunshine days is May (9.1 days).

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Average UV index in December
Lewisville, IN

Average UV index in December - Lewisville, IN
  • Average UV index in December: 1

The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
Lewisville, IN

Average cloud cover in December - Lewisville, IN
  • Average cloud cover in December: 59

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in December
Lewisville, IN

Average visibility in December - Lewisville, IN
  • Average visibility in December: 6mi

The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).

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Lewisville, Indiana, USA

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