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
As November makes way for December, Byram's average high-temperature eases from an enjoyable 64.8°F (18.2°C) to a moderate 57.6°F (14.2°C). Byram experiences an average low-temperature of 43°F (6.1°C) in the month of December.Humidity
The months with the highest humidity are February and December, with an average relative humidity of 80%.Rainfall
In Byram, during December, the rain falls for 13.7 days and regularly aggregates up to 3.62" (92mm) of precipitation. Throughout the year, there are 169.5 rainfall days, and 38.82" (986mm) of precipitation is accumulated.Snowfall
January through March and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.4 snowfall days, it receives 0.2" (5mm) of snow. In Byram, during the entire year, snow falls for 2.2 days and aggregates up to 0.98" (25mm) of snow.Daylight
December has the shortest days of the year, with an average of 10h and 6min of daylight.On the first day of December, sunrise is at 6:44 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 5:06 pm CST.
Sunshine
The average sunshine in December is 5h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In December, an average UV index of 3 transforms into the following instructions:
Be vigilant - A duty to shield skin and eyes from injury exists. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
When does it start to snow?
What is the month with the shortest days in Byram?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Byram have in December?
What is the month with the lowest UV index in Byram?
What is the UV index intensity in December?
Average temperature in December
Byram, MS
- Average high temperature in December: 57.6°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (54.7°F).
- Average low temperature in December: 43°F
The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (38.7°F).
Average pressure in December
Byram, 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
Byram, MS
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is February (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in December
Byram, MS
- Average humidity in December: 80%
The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (69%).
Average rainfall in December
Byram, MS
- Average rainfall in December: 3.62"
The wettest month (with the highest rainfall) is April (3.94").
The driest month (with the least rainfall) is November (2.36").
Average rainfall days in December
Byram, MS
- Average rainfall days in December: 13.7 days
The month with the highest number of rainy days is August (19.9 days).
The month with the least rainy days is November (9.2 days).
Average snowfall in December
Byram, MS
- Average snowfall in December: 0.2"
The month with the highest snowfall is January (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Byram, 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 and October (0 days).
Average daylight in December /
Average sunshine in December
Byram, 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: 5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in December
Byram, MS
- Average sunshine days in December: 15.3 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in December
Byram, 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 and December (UV index 3).
Average cloud cover in December
Byram, MS
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in December
Byram, 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).
Byram, Mississippi, USA
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