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
In Sundown, December is the month with the lowest recorded average temperatures, measuring a high of 52.5°F (11.4°C) and a low of 35.1°F (1.7°C).Humidity
In Sundown, the average relative humidity in December is 52%.Rainfall
In Sundown, in December, it is raining for 3.2 days, with typically 0.43" (11mm) of accumulated precipitation. In Sundown, Texas, during the entire year, the rain falls for 69.6 days and collects up to 10.31" (262mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Sundown, in December, snow falls for 2.3 days, with typically accumulated 0.87" (22mm) of snow. In Sundown, during the entire year, snow falls for 8 days and aggregates up to 3.74" (95mm) of snow.Daylight
The month with the shortest days is December, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 7:36 am and sunset at 5:42 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:52 pm CST.
Sunshine
With an average of 6.7h of sunshine, December has the least sunshine of the year.UV index
The month with the lowest UV index is December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 2 during December leads to these instructions:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
What are December temperatures?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Sundown have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Sundown have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Sundown, TX
- Average high temperature in December: 52.5°F
The warmest month (with the highest average high temperature) is June (92.5°F).
The month with the lowest average high temperature is December (52.5°F).
- Average low temperature in December: 35.1°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).
Average pressure in December
Sundown, TX
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Sundown, TX
- Average wind speed in December: 10.7mph
The windiest month (with the highest average wind speed) is April (13.3mph).
The calmest month (with the lowest average wind speed) is August (9.5mph).
Average humidity in December
Sundown, TX
- Average humidity in December: 52%
The month with the highest relative humidity is September (56%).
The month with the lowest relative humidity is April (35%).
Average rainfall in December
Sundown, TX
- Average rainfall in December: 0.43"
The wettest month (with the highest rainfall) is September (1.77").
The driest month (with the least rainfall) is February (0.28").
Average rainfall days in December
Sundown, TX
- Average rainfall days in December: 3.2 days
The month with the highest number of rainy days is September (10.5 days).
The month with the least rainy days is November (2.1 days).
Average snowfall in December
Sundown, TX
- Average snowfall in December: 0.87"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Sundown, TX
- Average snowfall days in December: 2.3 days
The months with the highest number of snowfall days are February and December (2.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sundown, TX
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 6h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in December
Sundown, TX
- Average sunshine days in December: 25.5 days
The month with the most sunshine days is January (27.3 days).
The month with the least sunshine days is September (18.2 days).
Average UV index in December
Sundown, TX
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Sundown, TX
- Average cloud cover in December: 23
The month with the most cloud cover is September (Cloud cover 24).
The month with the least cloud cover is June (Cloud cover 14).
Average visibility in December
Sundown, TX
- 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).
Sundown, Texas, USA
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