December weather forecast
State Line, MS

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Weather in December

The first month of the winter, December, is also a moderate month in State Line, Mississippi, with temperature in the range of an average low of 42.8°F (6°C) and an average high of 59.2°F (15.1°C).

Temperature

Start of December brings a slight shift in the average high-temperature, dipping a bit from November's enjoyable 66.2°F (19°C) to a still refreshing 59.2°F (15.1°C). December's average low-temperature reading settles at a frosty 42.8°F (6°C).

Humidity

With an average relative humidity of 82%, December is the most humid month in State Line.

Rainfall

In State Line, Mississippi, in December, it is raining for 12.5 days, with typically 3.03" (77mm) of accumulated precipitation. In State Line, Mississippi, during the entire year, the rain falls for 163.4 days and collects up to 31.06" (789mm) of precipitation.

Snowfall

Months with snowfall are January through March and December. The month with the most snowfall is December, when snow falls for 0.4 days and typically aggregates up to 0.31" (8mm) of snow.

Daylight

With an average of 10h and 6min of daylight, December has the shortest days of the year in State Line.
On the first day of the month, sunrise is at 6:35 am and sunset at 4:50 pm. On the last day of December, sunrise is at 6:52 am and sunset at 5:01 pm CST.

Sunshine

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

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: A daily high UV index of 3 in December leads to these guidelines:
Take necessary precautions - Defending against sun damage is advocated. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.

Frequently asked questions

What is the usual temperature for State Line in December?

The average high-temperature and low-temperature during December are 59.2°F (15.1°C) and 42.8°F (6°C) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, in September is appraised at 102.2°F (39°C).

What is the most humid month?

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

What is the average humidity in December?

In December, the average relative humidity is 82%.

How much does it rain in December?

In State Line, in December, during 12.5 rainfall days, 3.03" (77mm) of precipitation is typically accumulated.

What is the snowiest month?

December is the month with the most snowfall. Snow falls for 0.4 days and accumulates 0.31" (8mm) of snow.

When does it start to snow?

December is the first month it typically snows. Throughout December, in the average 0.4 snowfall days, it receives 0.31" (8mm) of snow.

What is the month with the shortest days in State Line?

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

What is the average length of the day in December in State Line?

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

When is the sunrise / sunset in December in State Line?

On the first day of December, sunrise is at 6:35 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 5:01 pm CST.

What are the months with the least sunshine in State Line?

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

How many hours of sunshine does State Line have in December?

The average sunshine duration in December is 4.9h.

What are the months with the lowest UV index?

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

What is the UV index reading in December?

In December, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to the Sun's 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
State Line, MS

Average temperature in December - State Line, MS
  • Average high temperature in December: 59.2°F

The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is January (56.1°F).

  • Average low temperature in December: 42.8°F

The months with the highest average low temperature are July and August (72.1°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).

Average pressure in December
State Line, MS

Average pressure in December - State Line, 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
State Line, MS

Average wind speed in December - State Line, MS
  • Average wind speed in December: 6.1mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is July (4.3mph).

Average humidity in December
State Line, MS

Average humidity in December - State Line, 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%).

Average rainfall in December
State Line, MS

Average rainfall in December - State Line, MS
  • Average rainfall in December: 3.03"

The wettest month (with the highest rainfall) is July (3.62").
The driest month (with the least rainfall) is November (1.61").

Average rainfall days in December
State Line, MS

Average rainfall days in December - State Line, MS
  • Average rainfall days in December: 12.5 days

The month with the highest number of rainy days is July (22.3 days).
The month with the least rainy days is November (7.5 days).

Average snowfall in December
State Line, MS

Average snowfall in December - State Line, MS
  • Average snowfall in December: 0.31"

The month with the highest snowfall is December (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December
State Line, MS

Average snowfall days in December - State Line, MS
  • Average snowfall days in December: 0.4 days

The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in December /
Average sunshine in December
State Line, MS

Average daylight in December / Average sunshine in December - State Line, 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 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).

Average sunshine days in December
State Line, MS

Average sunshine days in December - State Line, MS
  • Average sunshine days in December: 16.4 days

The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is July (7.2 days).

Average UV index in December
State Line, MS

Average UV index in December - State Line, 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
State Line, MS

Average cloud cover in December - State Line, MS
  • Average cloud cover in December: 50

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 31).

Average visibility in December
State Line, MS

Average visibility in December - State Line, MS
  • Average visibility in December: 5mi

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

State Line, Mississippi, USA

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