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
The transition into December is accompanied by a slight temperature decrease, with the average high-temperature shifting from an agreeable 69.4°F (20.8°C) in November to a comfortable 63°F (17.2°C). December nights observe an average temperature dip to a cool 52.2°F (11.2°C).Humidity
The average relative humidity in December is 77%.Rainfall
In December, the rain falls for 7.1 days. Throughout December, 0.51" (13mm) of precipitation is accumulated. Throughout the year, there are 122.9 rainfall days, and 9.72" (247mm) of precipitation is accumulated.Snowfall
Months with snowfall are January, September and December. The months with the most snowfall days in Nassau Bay are January, September and December, with an average of 0.1 snowfall days.Daylight
The month with the shortest days is December, with an average of 10h and 18min of daylight.On the first day of the month, sunrise is at 6:58 am and sunset at 5:21 pm. On the last day of December, sunrise is at 7:15 am and sunset at 5:32 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 4.7h of sunshine.UV index
December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In December, a daily UV index of 3 turns into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from 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 snow the most?
When does it start to snow?
What is the month with the shortest days?
How many hours of daylight does Nassau Bay have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
When is the lowest UV index in Nassau Bay?
How high is the UV index in December?
Average temperature in December
Nassau Bay, TX
- Average high temperature in December: 63°F
The warmest month (with the highest average high temperature) is August (90.5°F).
The month with the lowest average high temperature is January (60.4°F).
- Average low temperature in December: 52.2°F
The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (48.6°F).
Average pressure in December
Nassau Bay, 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 (29.93"Hg).
Average wind speed in December
Nassau Bay, TX
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (7.6mph).
Average humidity in December
Nassau Bay, TX
- Average humidity in December: 77%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Nassau Bay, TX
- Average rainfall in December: 0.51"
The wettest month (with the highest rainfall) is September (1.5").
The driest months (with the least rainfall) are February and March (0.31").
Average rainfall days in December
Nassau Bay, TX
- Average rainfall days in December: 7.1 days
The month with the highest number of rainy days is September (15.9 days).
The month with the least rainy days is February (6.3 days).
Average snowfall days in December
Nassau Bay, TX
- Average snowfall days in December: 0.1 days
The months with the highest number of snowfall days are January, September and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, October and November (0 days).
Average daylight in December /
Average sunshine in December
Nassau Bay, 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 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in December
Nassau Bay, TX
- Average sunshine days in December: 21.2 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is September (10.3 days).
Average UV index in December
Nassau Bay, 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
Nassau Bay, TX
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in December
Nassau Bay, 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).
Nassau Bay, Texas, USA
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