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
The start of December signals a gentle decrease in the average high-temperature, transitioning from an enjoyable 67.5°F (19.7°C) in November to a mild 59.9°F (15.5°C). An average low-temperature of 44.6°F (7°C) is observed during the December nights.Humidity
In Bryan, Texas, the average relative humidity in December is 76%.Rainfall
In December, the rain falls for 9 days. Throughout December, 1.57" (40mm) of precipitation is accumulated. In Bryan, during the entire year, the rain falls for 138.2 days and collects up to 20.12" (511mm) of precipitation.Snowfall
February through December are months without snowfall.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 7:05 am and sunset at 5:23 pm. On the last day of December, sunrise is at 7:22 am and sunset at 5:34 pm CST.
Sunshine
With an average of 5.1h of sunshine, December has the least sunshine of the year.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 health risk from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 3 in December leads to these guidelines:
Undertake precautions - Guarding against sun damage is counselled. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December?
How many days does it rain in December?
When it does not snow?
Does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Bryan have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Bryan, TX
- Average high temperature in December: 59.9°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (58.1°F).
- Average low temperature in December: 44.6°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 (42.3°F).
Average pressure in December
Bryan, TX
- Average pressure in December: 30.12"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
Bryan, TX
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest month (with the lowest average wind speed) is September (5.7mph).
Average humidity in December
Bryan, TX
- Average humidity in December: 76%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (66%).
Average rainfall in December
Bryan, TX
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is February (0.83").
Average rainfall days in December
Bryan, TX
- Average rainfall days in December: 9 days
The month with the highest number of rainy days is September (14.7 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in December
Bryan, TX
- Average snowfall in December: 0"
The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Bryan, TX
- Average snowfall days in December: 0.2 days
The months with the highest number of snowfall days are January and February (0.3 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
Bryan, TX
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in December
Bryan, TX
- Average sunshine days in December: 19 days
The month with the most sunshine days is January (20.4 days).
The month with the least sunshine days is September (12.7 days).
Average UV index in December
Bryan, 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
Bryan, TX
- Average cloud cover in December: 45
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Bryan, TX
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Bryan, Texas, USA
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