December weather forecastSpeeds Addition, MS
December
Weather in December
The first month of the winter, December, is still a mild month in Speeds Addition, Mississippi, with an average temperature varying between 57°F (13.9°C) and 43.7°F (6.5°C).Temperature
The onset of December brings a small shift in high-temperatures, falling from a refreshing 64.8°F (18.2°C) in November to a moderate 57°F (13.9°C). Throughout December, Speeds Addition registers a consistent average low-temperature of 43.7°F (6.5°C).Humidity
The months with the highest humidity are February and December, with an average relative humidity of 80%.Rainfall
In Speeds Addition, in December, during 13.6 rainfall days, 3.46" (88mm) of precipitation is typically accumulated. Throughout the year, there are 169.7 rainfall days, and 38.82" (986mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Speeds Addition, in December, during 0.4 snowfall days, 0.04" (1mm) of snow is typically accumulated. In Speeds Addition, Mississippi, during the entire year, snow falls for 2.6 days and aggregates up to 1.06" (27mm) of snow.Daylight
December has the shortest days of the year in Speeds Addition, with an average of 10h and 6min of daylight.On the first day of the month, sunrise is at 6:47 am and sunset at 4:58 pm. On the last day of December, sunrise is at 7:04 am and sunset at 5:09 pm CST.
Sunshine
February and December, with an average of 5h 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 estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: An average UV index of 3 in December transforms into this advice:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. During bright days, sunglasses that offer UVA and UVB defense are recommended. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Speeds Addition, MS
- Average high temperature in December: 57°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (54.1°F).
- Average low temperature in December: 43.7°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (39.6°F).
Average pressure in December
Speeds Addition, 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
Speeds Addition, MS
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Speeds Addition, 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
Speeds Addition, MS
- Average rainfall in December: 3.46"
The wettest month (with the highest rainfall) is April (3.98").
The driest month (with the least rainfall) is November (2.28").
Average rainfall days in December
Speeds Addition, MS
- Average rainfall days in December: 13.6 days
The month with the highest number of rainy days is August (19.3 days).
The month with the least rainy days is October (8.9 days).
Average snowfall in December
Speeds Addition, MS
- Average snowfall in December: 0.04"
The month with the highest snowfall is January (0.43").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Speeds Addition, MS
- Average snowfall days in December: 0.4 days
The month with the highest number of snowfall days is January (1 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
Speeds Addition, MS
- Average daylight in December: 10h and 6min
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 months with the least sunshine are February and December (Average sunshine: 5h and 0min).
Average sunshine days in December
Speeds Addition, MS
- Average sunshine days in December: 15.2 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is August (9.9 days).
Average UV index in December
Speeds Addition, 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
Speeds Addition, MS
- Average cloud cover in December: 45
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in December
Speeds Addition, 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).
