December weather forecast
Arm, MS

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Weather in December

December, the first month of the winter in Arm, is still a mild month, with an average temperature varying between 58.6°F (14.8°C) and 43°F (6.1°C).

Temperature

December's onset introduces a mild reduction in the average high-temperature, from an enjoyable 65.5°F (18.6°C) in November to a moderate 58.6°F (14.8°C). During December, the average low-temperature in Arm is a frosty 43°F (6.1°C).

Humidity

February and December, with an average relative humidity of 81%, are the most humid months in Arm, Mississippi.

Rainfall

In Arm, Mississippi, during December, the rain falls for 13.5 days and regularly aggregates up to 3.86" (98mm) of precipitation. Throughout the year, in Arm, there are 175.1 rainfall days, and 38.9" (988mm) of precipitation is accumulated.

Snowfall

January through March and December are months with snowfall in Arm, Mississippi. The months with the most snowfall in Arm are January and December, with an average 0.31" (8mm) of accumulated snow.

Daylight

The month with the shortest days in Arm, Mississippi, is December, with an average of 10h and 6min of daylight.
On the first day of December in Arm, sunrise is at 6:42 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 5:07 pm CST.

Sunshine

February and December, with an average of 4.9h 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 value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 3 in December translates into this advice:
Undertake protective steps - Preventing sun damage is advised. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
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Frequently asked questions

What is the temperature in December in Arm?

December temperatures in Arm, Mississippi, vary between a high-temperature of 58.6°F (14.8°C) and a low-temperature of 43°F (6.1°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, in September is computed to be 102.2°F (39°C).

What are the most humid months in Arm?

February and December, with an average relative humidity of 81%, are most humid months.

What is the average humidity in December in Arm?

In Arm, Mississippi, the average relative humidity in December is 81%.

How many days does it rain in December in Arm?

In Arm, in December, during 13.5 rainfall days, 3.86" (98mm) of precipitation is typically accumulated.

When does it snow the most in Arm?

The months with the most snowfall are January and December, with an average 0.31" (8mm) of accumulated snow.

When does it start snowing in Arm?

December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.31" (8mm) of snow.

What is the month with the shortest days in Arm?

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

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

The average day length in December in Arm, Mississippi, is 10h and 8min.

What time are sunrise and sunset in December in Arm?

On the first day of December in Arm, sunrise is at 6:42 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 5:07 pm CST.

What is the month with the least sunshine in Arm?

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

How many hours of sunshine does Arm have in December?

In Arm, Mississippi, the average sunshine duration in December is 4.9h.

When is the lowest UV index in Arm?

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

What is the UV index reading in December in Arm?

In December, the average daily maximum UV index in Arm is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
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
Arm, MS

Average temperature in December - Arm, MS
  • Average high temperature in December: 58.6°F

The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (55.9°F).

  • Average low temperature in December: 43°F

The months with the highest average low temperature are July and August (72°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).

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Average pressure in December
Arm, MS

Average pressure in December - Arm, 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
Arm, MS

Average wind speed in December - Arm, MS
  • Average wind speed in December: 7mph

The windiest months (with the highest average wind speed) are February and April (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

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Average humidity in December
Arm, MS

Average humidity in December - Arm, MS
  • Average humidity in December: 81%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in December
Arm, MS

Average rainfall in December - Arm, MS
  • Average rainfall in December: 3.86"

The wettest month (with the highest rainfall) is August (4.25").
The driest month (with the least rainfall) is November (2.4").

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Average rainfall days in December
Arm, MS

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

The month with the highest number of rainy days is August (21.6 days).
The month with the least rainy days is November (9.3 days).

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Average snowfall in December
Arm, MS

Average snowfall in December - Arm, MS
  • Average snowfall in December: 0.31"

The months with the highest snowfall are January and December (0.31").
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
Arm, MS

Average snowfall days in December - Arm, MS
  • Average snowfall days in December: 0.3 days

The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Arm, 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).

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Average sunshine days in December
Arm, MS

Average sunshine days in December - Arm, MS
  • Average sunshine days in December: 14.9 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is August (8.1 days).

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Average UV index in December
Arm, MS

Average UV index in December - Arm, 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).

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Average cloud cover in December
Arm, MS

Average cloud cover in December - Arm, MS
  • Average cloud cover in December: 48

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

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Average visibility in December
Arm, MS

Average visibility in December - Arm, 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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Arm, Mississippi, USA

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