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 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 December, the average high-temperature marginally drops from a pleasant 70.9°F (21.6°C) in November to a comfortable 63.7°F (17.6°C). Sweeny temperatures generally rest at a low of 50.9°F (10.5°C) during the December nights.Humidity
In Sweeny, the average relative humidity in December is 78%.Rainfall
In December, in Sweeny, the rain falls for 9.9 days. Throughout December, 0.91" (23mm) of precipitation is accumulated. Throughout the year, in Sweeny, there are 141.1 rainfall days, and 18.31" (465mm) of precipitation is accumulated.Snowfall
Months with snowfall in Sweeny are January, February and December. December is the first month it typically snows in Sweeny. Throughout December, there are 0.1 snowfall days. Throughout the year, in Sweeny, Texas, there are 0.4 snowfall days.Daylight
December has the shortest days of the year in Sweeny, with an average of 10h and 18min of daylight.On the first day of December in Sweeny, sunrise is at 6:59 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 5:35 pm CST.
Sunshine
The month with the least sunshine in Sweeny is December, with an average of 4.8h of sunshine.UV index
With an average maximum UV index of 3, December is the month with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 3 transforms into these recommendations:
Undertake protective steps - Preventing sun damage is advised. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Sweeny in December?
What is the average humidity in December in Sweeny?
How much does it rain in Sweeny in December?
When does it start snowing in Sweeny?
What is the month with the shortest days in Sweeny?
What is the average length of the day in December in Sweeny?
What time are sunrise and sunset in December in Sweeny?
What is the month with the least sunshine in Sweeny?
How many hours of sunshine does Sweeny have in December?
When is the lowest UV index in Sweeny?
How high is the UV index in December in Sweeny?
Average temperature in December
Sweeny, TX
- Average high temperature in December: 63.7°F
The warmest month (with the highest average high temperature) is August (92.1°F).
The month with the lowest average high temperature is January (61.5°F).
- Average low temperature in December: 50.9°F
The month with the highest average low temperature is August (77.4°F).
The coldest month (with the lowest average low temperature) is January (47.7°F).
Average pressure in December
Sweeny, TX
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Sweeny, TX
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is September (6.4mph).
Average humidity in December
Sweeny, TX
- Average humidity in December: 78%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Sweeny, TX
- Average rainfall in December: 0.91"
The wettest month (with the highest rainfall) is September (2.68").
The driest month (with the least rainfall) is February (0.71").
Average rainfall days in December
Sweeny, TX
- Average rainfall days in December: 9.9 days
The month with the highest number of rainy days is September (17.5 days).
The month with the least rainy days is February (8.4 days).
Average snowfall days in December
Sweeny, TX
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (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
Sweeny, TX
- Average daylight in December: 10h and 2min
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: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in December
Sweeny, TX
- Average sunshine days in December: 17.9 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is September (10 days).
Average UV index in December
Sweeny, TX
- Average UV index in December: 3
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 3).
Average cloud cover in December
Sweeny, TX
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Sweeny, 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).
Sweeny, Texas, USA
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