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 beginning of December brings a minor change in the average high-temperature, shifting from a comfortable 62.2°F (16.8°C) in November to a cool 54.5°F (12.5°C). Weir's temperature drops to an average low of 40.3°F (4.6°C) during the nights of December.Humidity
The most humid month is December, with an average relative humidity of 81%.Rainfall
In Weir, in December, during 12.6 rainfall days, 3.43" (87mm) of precipitation is typically accumulated. In Weir, Mississippi, during the entire year, the rain falls for 163.9 days and collects up to 36.54" (928mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Weir, in December, snow falls for 0.5 days, with typically accumulated 0.08" (2mm) of snow. Throughout the year, there are 3.5 snowfall days, and 1.34" (34mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 6:43 am and sunset at 4:49 pm. On the last day of December, sunrise is at 7:00 am and sunset at 5:00 pm CST.
Sunshine
In December, the average sunshine is 4.9h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 3 during December translates into these guidelines:
Exercise prevention - Warding off sunburn is urged. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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 in Weir?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Weir have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Weir have in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Weir, MS
- Average high temperature in December: 54.5°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (51.4°F).
- Average low temperature in December: 40.3°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).
Average pressure in December
Weir, 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
Weir, MS
- Average wind speed in December: 7mph
The windiest months (with the highest average wind speed) are February and April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Weir, MS
- Average humidity in December: 81%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Weir, MS
- Average rainfall in December: 3.43"
The wettest month (with the highest rainfall) is February (3.7").
The driest month (with the least rainfall) is November (2.09").
Average rainfall days in December
Weir, MS
- Average rainfall days in December: 12.6 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in December
Weir, MS
- Average snowfall in December: 0.08"
The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Weir, MS
- Average snowfall days in December: 0.5 days
The months with the highest number of snowfall days are January and February (1.3 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
Weir, MS
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Weir, MS
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in December
Weir, MS
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in December
Weir, MS
- Average cloud cover in December: 48
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in December
Weir, 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).
Weir, Mississippi, USA
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