December weather forecast
Williamsburg, IN

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Weather in December

December, the first month of the winter in Williamsburg, is also an icy month, with an average temperature fluctuating between 37.9°F (3.3°C) and 27.9°F (-2.3°C).

Temperature

The start of December signals a decrease in the average high-temperature, transitioning from a chilly 48.4°F (9.1°C) in November to an icy 37.9°F (3.3°C). Williamsburg's average low-temperature in the month of December is recorded at a subzero cold 27.9°F (-2.3°C).

Humidity

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

Rainfall

In Williamsburg, Indiana, during December, the rain falls for 11.7 days and regularly aggregates up to 2.44" (62mm) of precipitation. In Williamsburg, during the entire year, the rain falls for 172.8 days and collects up to 32.32" (821mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall in Williamsburg, Indiana. December is the month with the most snowfall. Snow falls for 10.3 days and accumulates 3.62" (92mm) of snow.

Daylight

December has the shortest days of the year in Williamsburg, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:43 am and sunset at 5:15 pm. On the last day of December, in Williamsburg, Indiana, sunrise is at 8:01 am and sunset at 5:25 pm EST.

Sunshine

In Williamsburg, Indiana, the average sunshine in December is 3.9h.

UV index

The months with the lowest UV index in Williamsburg, Indiana, are January through March, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
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Frequently asked questions

Is December cold in Williamsburg?

The high-temperature, in December, in Williamsburg, records 37.9°F (3.3°C), while the low-temperature is 27.9°F (-2.3°C).

What are the most humid months in Williamsburg?

The months with the highest humidity are January, July and December, with an average relative humidity of 83%.

What is the average humidity in December in Williamsburg?

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

How much does it rain in Williamsburg in December?

In Williamsburg, Indiana, in December, during 11.7 rainfall days, 2.44" (62mm) of precipitation is typically accumulated.

When does it snow the most in Williamsburg?

The month with the most snowfall is December, when snow falls for 10.3 days and typically aggregates up to 3.62" (92mm) of snow.

How many days does it snow in December in Williamsburg?

In December, it is snowing for 10.3 days. Throughout December, 3.62" (92mm) of snow is accumulated.

What is the month with the shortest days in Williamsburg?

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

How many hours of daylight does Williamsburg have in December?

In December, the average day length is 9h and 23min.

When are sunrise and sunset in December in Williamsburg?

On the first day of December in Williamsburg, sunrise is at 7:43 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 5:25 pm EST.

How long on average sun shines in December in Williamsburg?

The average sunshine duration in December in Williamsburg is 3.9h.

What are the months with the lowest UV index in Williamsburg?

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in December in Williamsburg?

In Williamsburg, Indiana, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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
Williamsburg, IN

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

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (32.4°F).

  • Average low temperature in December: 27.9°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

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Average pressure in December
Williamsburg, IN

Average pressure in December - Williamsburg, 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
Williamsburg, IN

Average wind speed in December - Williamsburg, IN
  • Average wind speed in December: 9.7mph

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in December
Williamsburg, IN

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

The months with the highest relative humidity are January, July and December (83%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in December
Williamsburg, IN

Average rainfall in December - Williamsburg, IN
  • Average rainfall in December: 2.44"

The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is February (1.97").

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Average rainfall days in December
Williamsburg, IN

Average rainfall days in December - Williamsburg, IN
  • Average rainfall days in December: 11.7 days

The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is February (9 days).

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Average snowfall in December
Williamsburg, IN

Average snowfall in December - Williamsburg, IN
  • Average snowfall in December: 3.62"

The month with the highest snowfall is December (3.62").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Williamsburg, IN

Average snowfall days in December - Williamsburg, IN
  • Average snowfall days in December: 10.3 days

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

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

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 3h and 5min

The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in December
Williamsburg, IN

Average sunshine days in December - Williamsburg, IN
  • Average sunshine days in December: 12 days

The month with the most sunshine days is November (15.7 days).
The month with the least sunshine days is July (8.9 days).

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Average UV index in December
Williamsburg, IN

Average UV index in December - Williamsburg, IN
  • Average UV index in December: 2

The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in December
Williamsburg, IN

Average cloud cover in December - Williamsburg, IN
  • Average cloud cover in December: 60

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
Williamsburg, IN

Average visibility in December - Williamsburg, 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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Williamsburg, Indiana, USA

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