December weather forecast
Signal, MS

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Weather in December

The first month of the winter, December, is still a mild month in Signal, Mississippi, with an average temperature fluctuating between 57°F (13.9°C) and 43.7°F (6.5°C).

Temperature

The start of December involves a subtle temperature drop, shifting from an enjoyable 64.8°F (18.2°C) in November to a still refreshing 57°F (13.9°C). Throughout the month of December, the nighttime temperature dips to an average of 43.7°F (6.5°C).

Humidity

February and December, with an average relative humidity of 80%, are the most humid months.

Rainfall

In Signal, in December, it is raining for 13.6 days, with typically 3.46" (88mm) of accumulated precipitation. In Signal, during the entire year, the rain falls for 169.7 days and collects up to 38.82" (986mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. In December, it is snowing for 0.4 days. Throughout December, 0.04" (1mm) of snow is accumulated. Throughout the year, there are 2.6 snowfall days, and 1.06" (27mm) 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 the month, sunrise is at 6:47 am and sunset at 4:57 pm. On the last day of December, sunrise is at 7:04 am and sunset at 5:08 pm CST.

Sunshine

February and December, with an average of 5h of sunshine, are months with the least sunshine.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 3 during December translates into these guidelines:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in December?

The high-temperature, in December, in Signal, is 57°F (13.9°C), while the low-temperature averages to 43.7°F (6.5°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in September is evaluated at 102.2°F (39°C).

What are the most humid months?

The months with the highest humidity are February and December, with an average relative humidity of 80%.

What is the average humidity in December?

In Signal, the average relative humidity in December is 80%.

How many days does it rain in December?

In Signal, in December, during 13.6 rainfall days, 3.46" (88mm) of precipitation is typically accumulated.

How much does it snow in December?

In Signal, in December, during 0.4 snowfall days, 0.04" (1mm) of snow is typically accumulated.

What is the month with the shortest days?

With an average of 10h and 6min of daylight, December has the shortest days of the year.

How many hours of daylight does Signal have in December?

In Signal, the average day length in December is 10h and 4min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:47 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 5:08 pm CST.

What is the month with the least sunshine?

February and December, with an average of 5h of sunshine, are months with the least sunshine.

How long on average sun shines in December?

In December, the average sunshine duration is 5h.

What is the month with the lowest UV index?

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

How high is the UV index in December?

The average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's 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
Signal, MS

Average temperature in December - Signal, MS
  • Average high temperature in December: 57°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (54.1°F).

  • Average low temperature in December: 43.7°F

The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (39.6°F).

Average pressure in December
Signal, MS

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in December
Signal, MS

Average wind speed in December - Signal, MS
  • Average wind speed in December: 7.6mph

The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in December
Signal, MS

Average humidity in December - Signal, MS
  • Average humidity in December: 80%

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (69%).

Average rainfall in December
Signal, MS

Average rainfall in December - Signal, MS
  • Average rainfall in December: 3.46"

The wettest month (with the highest rainfall) is April (3.98").
The driest month (with the least rainfall) is November (2.28").

Average rainfall days in December
Signal, MS

Average rainfall days in December - Signal, MS
  • Average rainfall days in December: 13.6 days

The month with the highest number of rainy days is August (19.3 days).
The month with the least rainy days is October (8.9 days).

Average snowfall in December
Signal, MS

Average snowfall in December - Signal, MS
  • Average snowfall in December: 0.04"

The month with the highest snowfall is January (0.43").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Signal, MS

Average snowfall days in December - Signal, MS
  • Average snowfall days in December: 0.4 days

The month with the highest number of snowfall days is January (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Signal, 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: 5h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 5h and 0min).

Average sunshine days in December
Signal, MS

Average sunshine days in December - Signal, MS
  • Average sunshine days in December: 15.2 days

The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is August (9.9 days).

Average UV index in December
Signal, MS

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

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

Average cloud cover in December
Signal, MS

Average cloud cover in December - Signal, MS
  • Average cloud cover in December: 45

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 27).

Average visibility in December
Signal, MS

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

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

Signal, Mississippi, USA

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