December weather forecast
Blue Mountain, MS

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Weather in December

December, the first month of the winter in Blue Mountain, is also a fresh month, with an average temperature varying between 51.1°F (10.6°C) and 37.8°F (3.2°C).

Temperature

December's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from November's moderate 59.5°F (15.3°C) to a fresh 51.1°F (10.6°C). Throughout December in Blue Mountain, Mississippi, a steady low-temperature average of 37.8°F (3.2°C) is noted.

Humidity

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

Rainfall

In December, in Blue Mountain, the rain falls for 13 days. Throughout December, 3.31" (84mm) of precipitation is accumulated. Throughout the year, there are 167.2 rainfall days, and 38.98" (990mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In Blue Mountain, during December, snow falls for 0.4 days and regularly aggregates up to 0.08" (2mm) of snow. Throughout the year, there are 4.8 snowfall days, and 1.54" (39mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 6:45 am and sunset at 4:45 pm. On the last day of December, sunrise is at 7:03 am and sunset at 4:55 pm CST.

Sunshine

The average sunshine in December in Blue Mountain, Mississippi, is 4.8h.

UV index

December is the month with the lowest UV index in Blue Mountain, Mississippi, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
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Frequently asked questions

What is the temperature in December in Blue Mountain?

The high-temperature, in December, in Blue Mountain, records 51.1°F (10.6°C), while the low-temperature is 37.8°F (3.2°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is estimated at 91.4°F (33°C).

What are the most humid months in Blue Mountain?

The months with the highest humidity in Blue Mountain, Mississippi, are March and December, with an average relative humidity of 80%.

What is the average humidity in December in Blue Mountain?

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

How much does it rain in Blue Mountain in December?

In Blue Mountain, Mississippi, during December, the rain falls for 13 days and regularly aggregates up to 3.31" (84mm) of precipitation.

How many days does it snow in December in Blue Mountain?

In Blue Mountain, in December, during 0.4 snowfall days, 0.08" (2mm) of snow is typically accumulated.

What is the month with the shortest days in Blue Mountain?

With an average of 9h and 54min of daylight, December has the shortest days of the year in Blue Mountain.

What is the average length of the day in December in Blue Mountain?

In December, the average day length in Blue Mountain is 9h and 53min.

What time are sunrise and sunset in December in Blue Mountain?

In December, on the first day of the month, sunrise is at 6:45 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 4:55 pm CST.

How long on average sun shines in December in Blue Mountain?

In Blue Mountain, the average sunshine duration in December is 4.8h.

When is the lowest UV index in Blue Mountain?

The month with the lowest UV index in Blue Mountain is December, with an average maximum UV index of 2.

What is the UV index intensity in December in Blue Mountain?

In Blue Mountain, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
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
Blue Mountain, MS

Average temperature in December - Blue Mountain, MS
  • Average high temperature in December: 51.1°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (47.5°F).

  • Average low temperature in December: 37.8°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

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Average pressure in December
Blue Mountain, MS

Average pressure in December - Blue Mountain, 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).

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Average wind speed in December
Blue Mountain, MS

Average wind speed in December - Blue Mountain, MS
  • Average wind speed in December: 7.4mph

The windiest month (with the highest average wind speed) is February (8mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

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Average humidity in December
Blue Mountain, MS

Average humidity in December - Blue Mountain, MS
  • Average humidity in December: 80%

The months with the highest relative humidity are March and December (80%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Blue Mountain, MS

Average rainfall in December - Blue Mountain, MS
  • Average rainfall in December: 3.31"

The wettest month (with the highest rainfall) is February (4.8").
The driest month (with the least rainfall) is September (2.13").

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Average rainfall days in December
Blue Mountain, MS

Average rainfall days in December - Blue Mountain, MS
  • Average rainfall days in December: 13 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (10.3 days).

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Average snowfall in December
Blue Mountain, MS

Average snowfall in December - Blue Mountain, MS
  • Average snowfall in December: 0.08"

The month with the highest snowfall is February (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Blue Mountain, MS

Average snowfall days in December - Blue Mountain, MS
  • Average snowfall days in December: 0.4 days

The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Blue Mountain, MS

Average daylight in December / Average sunshine in December - Blue Mountain, MS
  • Average daylight in December: 9h and 5min

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

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in December
Blue Mountain, MS

Average sunshine days in December - Blue Mountain, MS
  • Average sunshine days in December: 17 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (11.5 days).

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Average UV index in December
Blue Mountain, MS

Average UV index in December - Blue Mountain, MS
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in December
Blue Mountain, MS

Average cloud cover in December - Blue Mountain, MS
  • Average cloud cover in December: 49

The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June, August and September (Cloud cover 29).

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Average visibility in December
Blue Mountain, MS

Average visibility in December - Blue Mountain, 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).

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Blue Mountain, Mississippi, USA

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