Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The onset of December brings a small shift in high-temperatures, falling from 65.5°F (18.6°C) in November to a still refreshing 58.6°F (14.8°C). An average minimum temperature of 43°F (6.1°C) is recorded during the month of December.Humidity
February and December, with an average relative humidity of 81%, are the most humid months.Rainfall
In Arm, during December, the rain falls for 13.5 days and regularly aggregates up to 3.86" (98mm) of precipitation. In Arm, during the entire year, the rain falls for 175.1 days and collects up to 38.9" (988mm) of precipitation.Snowfall
January through March and December are months with snowfall. The months with the most snowfall in Arm are January and December, with an average 0.31" (8mm) of accumulated snow.Daylight
December has the shortest days of the year, with an average of 10h and 6min of daylight.On the first day of the month, sunrise is at 6:42 am and sunset at 4:56 pm. On the last day of December, 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
The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The UV index of 3 in December translates into these instructions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
When does it snow the most?
When does it start to snow in Arm?
What is the month with the shortest days?
How many hours of daylight does Arm have in December?
What time are sunrise and sunset in December?
What are the months with the least sunshine?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Arm, Mississippi, USA
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