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
With the onset of December, Simmonsville's climate undergoes a slight change as the average high-temperature moves from an enjoyable 66.6°F (19.2°C) in November to a still refreshing 59.7°F (15.4°C). December nights in Simmonsville observe an average temperature dip to a chilly 44.6°F (7°C).Humidity
December is the most humid month in Simmonsville, with an average relative humidity of 81%.Rainfall
In Simmonsville, in December, during 14.2 rainfall days, 3.46" (88mm) of precipitation is typically accumulated. Throughout the year, in Simmonsville, there are 174 rainfall days, and 34.29" (871mm) of precipitation is accumulated.Snowfall
Months with snowfall in Simmonsville are January through March and December. The months with the most snowfall are January and December, with an average 0.24" (6mm) of accumulated snow.Daylight
December has the shortest days of the year, with an average of 10h and 12min of daylight.On the first day of December, sunrise is at 6:42 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 5:09 pm CST.
Sunshine
February and December, with an average of 4.8h 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 of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 3 during December leads to these advisories:
Take necessary precautions - Suggestions to elude sunburn are provided. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Stay sun-safe with clothing that is both closely woven and worn loosely. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
What are December temperatures in Simmonsville?
What is the most humid month in Simmonsville?
What is the average humidity in December in Simmonsville?
How much does it rain in Simmonsville in December?
What is the snowiest month in Simmonsville?
When does it start snowing in Simmonsville?
What is the month with the shortest days in Simmonsville?
What is the average length of the day in December in Simmonsville?
When are sunrise and sunset in December in Simmonsville?
What are the months with the least sunshine in Simmonsville?
How long on average sun shines in December in Simmonsville?
What are the months with the lowest UV index in Simmonsville?
How high is the UV index in December in Simmonsville?
Average temperature in December
Simmonsville, MS
- Average high temperature in December: 59.7°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (56.8°F).
- Average low temperature in December: 44.6°F
The months with the highest average low temperature are July and August (72.7°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).
Average pressure in December
Simmonsville, MS
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in December
Simmonsville, MS
- Average wind speed in December: 6.5mph
The windiest months (with the highest average wind speed) are February and April (6.8mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in December
Simmonsville, 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
Simmonsville, MS
- Average rainfall in December: 3.46"
The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is November (1.93").
Average rainfall days in December
Simmonsville, MS
- Average rainfall days in December: 14.2 days
The month with the highest number of rainy days is July (20.9 days).
The month with the least rainy days is November (9 days).
Average snowfall in December
Simmonsville, MS
- Average snowfall in December: 0.24"
The months with the highest snowfall are January and December (0.24").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Simmonsville, MS
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Simmonsville, MS
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in December
Simmonsville, MS
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is July (8.5 days).
Average UV index in December
Simmonsville, 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
Simmonsville, MS
- Average cloud cover in December: 50
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in December
Simmonsville, MS
- Average visibility in December: 5mi
The months with the highest visibility are October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September and December (5mi).
Simmonsville, Mississippi, USA
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