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
A moderate decline in average high-temperatures is noted in December, moving from a refreshing 66.2°F (19°C) in November to a mild 58.5°F (14.7°C). An average low-temperature of 43.9°F (6.6°C) is observed during December nights.Humidity
In Smithville, the average relative humidity in December is 82%.Rainfall
In Smithville, during December, the rain falls for 8.9 days and regularly aggregates up to 1.02" (26mm) of precipitation. Throughout the year, there are 131.7 rainfall days, and 14.29" (363mm) of precipitation is accumulated.Snowfall
January and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. In Smithville, during the entire year, snow falls for 1.2 days and aggregates up to 0.35" (9mm) of snow.Daylight
With an average of 10h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:51 am and sunset at 5:06 pm. On the last day of December, sunrise is at 7:08 am and sunset at 5:17 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 4.8h of sunshine.UV index
January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 3 in December interprets into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. 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
What is the average December temperature?
What is the average humidity in December?
How many days does it rain in December?
When does it start to snow?
What is the month with the shortest days?
What is the average length of the day in December in Smithville?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What are the months with the lowest UV index?
How high is the UV index in December in Smithville?
Average temperature in December
Smithville, LA
- Average high temperature in December: 58.5°F
The warmest months (with the highest average high temperature) are July and August (93°F).
The month with the lowest average high temperature is January (55.9°F).
- Average low temperature in December: 43.9°F
The months with the highest average low temperature are July and August (73°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).
Average pressure in December
Smithville, LA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.95"Hg).
Average wind speed in December
Smithville, LA
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is February (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).
Average humidity in December
Smithville, LA
- Average humidity in December: 82%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Smithville, LA
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is August (1.97").
The driest month (with the least rainfall) is November (0.75").
Average rainfall days in December
Smithville, LA
- Average rainfall days in December: 8.9 days
The month with the highest number of rainy days is August (16.8 days).
The month with the least rainy days is November (6.5 days).
Average snowfall in December
Smithville, LA
- Average snowfall in December: 0.04"
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 and November (0").
Average snowfall days in December
Smithville, LA
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is January (0.6 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
Smithville, LA
- 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 12min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in December
Smithville, LA
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in December
Smithville, LA
- 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
Smithville, LA
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in December
Smithville, LA
- Average visibility in December: 6mi
The months with the highest visibility are January, June, October, November and December (6mi).
The months with the lowest visibility are February, March, April, May, July, August and September (5mi).
Smithville, Louisiana, USA
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