December weather forecastSmithville, TX
December
Weather in December
The first month of the winter, December, is still a mild month in Smithville, Texas, with an average temperature varying between 60.6°F (15.9°C) and 45.5°F (7.5°C).Temperature
As November transitions into December, Smithville sees a gentle drop in the average high-temperature, transitioning from a pleasant 68.4°F (20.2°C) to a moderate 60.6°F (15.9°C). In Smithville, the expected average low-temperature for December is a chilly 45.5°F (7.5°C).Humidity
The average relative humidity in December in Smithville is 74%.Rainfall
In December, the rain falls for 9.5 days. Throughout December, 1.1" (28mm) of precipitation is accumulated. Throughout the year, there are 138.8 rainfall days, and 18.78" (477mm) of precipitation is accumulated.Snowfall
The only month with snowfall is December. The month with the most snowfall is December, when snow falls for 0.2 days and typically aggregates up to 0.04" (1mm) of snow.Daylight
The month with the shortest days is December, with an average of 10h and 18min of daylight.On the first day of December in Smithville, sunrise is at 7:07 am and sunset at 5:28 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:39 pm CST.
Sunshine
With an average of 5h of sunshine, December has the least sunshine of the year.UV index
December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index, 3 during December, leads to the following recommendations:
Guard yourself - Avoiding sunburn is suggested. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Smithville, TX
- Average high temperature in December: 60.6°F
The warmest month (with the highest average high temperature) is August (96.6°F).
The month with the lowest average high temperature is January (59.2°F).
- Average low temperature in December: 45.5°F
The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (43.7°F).
Average pressure in December
Smithville, TX
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Smithville, TX
- Average wind speed in December: 7.9mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is September (6mph).
Average humidity in December
Smithville, TX
- Average humidity in December: 74%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (64%).
Average rainfall in December
Smithville, TX
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is February (0.75").
Average rainfall days in December
Smithville, TX
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is June (15.3 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in December
Smithville, TX
- Average snowfall in December: 0.04"
The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Smithville, TX
- Average snowfall days in December: 0.2 days
The months with the highest number of snowfall days are February and December (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Smithville, TX
- Average daylight in December: 10h and 18min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in December: 5h
The month with the most sunshine is August (Average sunshine: 10h).
The month with the least sunshine is December (Average sunshine: 5h).
Average sunshine days in December
Smithville, TX
- Average sunshine days in December: 19.4 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is June (11.2 days).
Average UV index in December
Smithville, TX
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Smithville, TX
- Average cloud cover in December: 46
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Smithville, TX
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, July, August, September, October, November and December (6mi).
The months with the lowest visibility are May and June (5mi).





