December weather forecast
Williamsburg, MS

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Weather in December

December, the first month of the winter in Williamsburg, is also a moderate month, with an average temperature varying between 59°F (15°C) and 43.2°F (6.2°C).

Temperature

In Williamsburg, the beginning of December is marked by a marginally lowered average high-temperature, shifting from November's refreshing 66°F (18.9°C) to a moderate 59°F (15°C). In the month of December, Williamsburg's average low-temperature falls to a frosty 43.2°F (6.2°C).

Humidity

December is the most humid month, with an average relative humidity of 82%.

Rainfall

The month with the most rainfall in Williamsburg, Mississippi, is December, when the rain falls for 13.5 days and typically aggregates up to 3.74" (95mm) of precipitation.

Snowfall

January through March and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 0.9 snowfall days, and 0.55" (14mm) of snow is accumulated.

Daylight

With an average of 10h and 6min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:40 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 5:05 pm CST.

Sunshine

The months with the least sunshine in Williamsburg, Mississippi, are February and December, with an average of 4.9h of sunshine.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index in Williamsburg. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily high UV index of 3 in December leads to these guidelines:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
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Frequently asked questions

What are the temperatures in Williamsburg in December?

During December, Williamsburg experiences an average high-temperature of 59°F (15°C) and a low-temperature of 43.2°F (6.2°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in September is appraised at 102.2°F (39°C).

What is the most humid month in Williamsburg?

The most humid month in Williamsburg is December, with an average relative humidity of 82%.

What is the average humidity in December in Williamsburg?

In December, the average relative humidity in Williamsburg, Mississippi, is 82%.

What is the rainiest month in Williamsburg?

December is the month with the most rainfall. Rain falls for 13.5 days and accumulates 3.74" (95mm) of precipitation.

How many days does it rain in December in Williamsburg?

In Williamsburg, Mississippi, during December, the rain falls for 13.5 days and regularly aggregates up to 3.74" (95mm) of precipitation.

When does it start snowing in Williamsburg?

December is the first month it typically snows in Williamsburg, Mississippi. Throughout December, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow.

What is the month with the shortest days in Williamsburg?

December has the shortest days of the year in Williamsburg, Mississippi, with an average of 10h and 6min of daylight.

What is the average length of the day in December in Williamsburg?

In Williamsburg, the average day length in December is 10h and 8min.

When is the sunrise / sunset in December in Williamsburg?

In December, on the first day of the month, sunrise is at 6:40 am and sunset at 4:54 pm. On the last day of the month, in Williamsburg, Mississippi, sunrise is at 6:57 am and sunset at 5:05 pm CST.

What are the months with the least sunshine in Williamsburg?

February and December, with an average of 4.9h of sunshine, are months with the least sunshine in Williamsburg.

How long on average sun shines in December in Williamsburg?

The average sunshine duration in December is 4.9h.

When is the lowest UV index in Williamsburg?

The months with the lowest UV index in Williamsburg, Mississippi, are January and December, with an average maximum UV index of 3.

How high is the UV index in December in Williamsburg?

In Williamsburg, Mississippi, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Williamsburg, MS

Average temperature in December - Williamsburg, MS
  • Average high temperature in December: 59°F

The warmest month (with the highest average high temperature) is August (91.4°F).
The month with the lowest average high temperature is January (55.9°F).

  • Average low temperature in December: 43.2°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (39°F).

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Average pressure in December
Williamsburg, MS

Average pressure in December - Williamsburg, MS
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).

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Average wind speed in December
Williamsburg, MS

Average wind speed in December - Williamsburg, MS
  • Average wind speed in December: 7.1mph

The windiest months (with the highest average wind speed) are January, February and April (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

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Average humidity in December
Williamsburg, MS

Average humidity in December - Williamsburg, MS
  • Average humidity in December: 82%

The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Williamsburg, MS

Average rainfall in December - Williamsburg, MS
  • Average rainfall in December: 3.74"

The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is November (2.01").

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Average rainfall days in December
Williamsburg, MS

Average rainfall days in December - Williamsburg, MS
  • Average rainfall days in December: 13.5 days

The month with the highest number of rainy days is August (20.3 days).
The month with the least rainy days is November (8.7 days).

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Average snowfall in December
Williamsburg, MS

Average snowfall in December - Williamsburg, MS
  • Average snowfall in December: 0.12"

The month with the highest snowfall is January (0.24").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Williamsburg, MS

Average snowfall days in December - Williamsburg, MS
  • Average snowfall days in December: 0.1 days

The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

Average daylight in December / Average sunshine in December - Williamsburg, MS
  • Average daylight in December: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).

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Average sunshine days in December
Williamsburg, MS

Average sunshine days in December - Williamsburg, MS
  • Average sunshine days in December: 15.9 days

The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is August (9 days).

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Average UV index in December
Williamsburg, MS

Average UV index in December - Williamsburg, MS
  • Average UV index in December: 3

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

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Average cloud cover in December
Williamsburg, MS

Average cloud cover in December - Williamsburg, MS
  • Average cloud cover in December: 49

The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 29).

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Average visibility in December
Williamsburg, MS

Average visibility in December - Williamsburg, MS
  • Average visibility in December: 6mi

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

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Williamsburg, Mississippi, USA

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