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
December signifies a minor drop in average high-temperature, transitioning from a pleasant 68.2°F (20.1°C) in November to an enjoyable 62.1°F (16.7°C). Nighttime temperature lowers to an average of 50.4°F (10.2°C) in December.Humidity
With an average relative humidity of 79%, December is the most humid month.Rainfall
In December, the rain falls for 13.8 days. Throughout December, 3.7" (94mm) of precipitation is accumulated. In Lyman, during the entire year, the rain falls for 184.5 days and collects up to 43.62" (1108mm) of precipitation.Snowfall
In Lyman, snow does not fall in February through December.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 6:36 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 5:06 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 5.2h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The daily maximum UV index of 4 in December interprets into the following advice:
Exercise caution. Those with pale skin may experience burns in less than half an hour. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
What is the most humid month in Lyman?
What is the average humidity in December in Lyman?
How many days does it rain in December?
When it does not snow?
Does it snow in Lyman in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Lyman have in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Lyman, MS
- Average high temperature in December: 62.1°F
The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (59.2°F).
- Average low temperature in December: 50.4°F
The month with the highest average low temperature is August (77.7°F).
The coldest month (with the lowest average low temperature) is January (46°F).
Average pressure in December
Lyman, MS
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in December
Lyman, MS
- Average wind speed in December: 8.4mph
The windiest month (with the highest average wind speed) is April (8.7mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in December
Lyman, MS
- Average humidity in December: 79%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Lyman, MS
- Average rainfall in December: 3.7"
The wettest month (with the highest rainfall) is August (6.89").
The driest month (with the least rainfall) is November (2.09").
Average rainfall days in December
Lyman, MS
- Average rainfall days in December: 13.8 days
The month with the highest number of rainy days is August (24.3 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in December
Lyman, MS
- Average snowfall in December: 0"
The month with the highest snowfall is January (0.31").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Lyman, MS
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Lyman, 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: 5h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in December
Lyman, MS
- Average sunshine days in December: 15.4 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is July (4.4 days).
Average UV index in December
Lyman, MS
- Average UV index in December: 4
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in December
Lyman, MS
- Average cloud cover in December: 44
The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 23).
Average visibility in December
Lyman, 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).
Lyman, Mississippi, USA
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