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 arrival of December suggests a slight decrease in the average high-temperature, moving from a refreshing 57.9°F (14.4°C) in November to a cool 50.5°F (10.3°C). The low-temperature averages to an icy 36.5°F (2.5°C) during the nights of December.Humidity
With an average relative humidity of 80%, December is the most humid month.Rainfall
December is the month with the most rainfall in Chattanooga Valley. Rain falls for 13.5 days and accumulates 4.37" (111mm) of precipitation.Snowfall
Months with snowfall in Chattanooga Valley are January through April, November and December. In December, it is snowing for 2.1 days. Throughout December, 0.83" (21mm) of snow is accumulated. In Chattanooga Valley, during the entire year, snow falls for 11.6 days and aggregates up to 4.65" (118mm) of snow.Daylight
December has the shortest days of the year in Chattanooga Valley, with an average of 9h and 54min of daylight.On the first day of December in Chattanooga Valley, sunrise is at 7:31 am and sunset at 5:29 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 5:40 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 4.9h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: In December, the maximum UV index of 2 suggests this advice:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Chattanooga Valley in December?
What is the most humid month in Chattanooga Valley?
What is the average humidity in December in Chattanooga Valley?
What is the rainiest month in Chattanooga Valley?
How many days does it rain in December in Chattanooga Valley?
How much does it snow in Chattanooga Valley in December?
What is the month with the shortest days in Chattanooga Valley?
How many hours of daylight does Chattanooga Valley have in December?
What time are sunrise and sunset in December in Chattanooga Valley?
What is the month with the least sunshine in Chattanooga Valley?
How long on average sun shines in December in Chattanooga Valley?
What are the months with the lowest UV index in Chattanooga Valley?
How high is the UV index in December in Chattanooga Valley?
Average temperature in December
Chattanooga Valley, GA
- Average high temperature in December: 50.5°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (46.4°F).
- Average low temperature in December: 36.5°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).
Average pressure in December
Chattanooga Valley, GA
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Chattanooga Valley, GA
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in December
Chattanooga Valley, GA
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, August, October and November (75%).
Average rainfall in December
Chattanooga Valley, GA
- Average rainfall in December: 4.37"
The wettest month (with the highest rainfall) is December (4.37").
The driest month (with the least rainfall) is September (2.56").
Average rainfall days in December
Chattanooga Valley, GA
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in December
Chattanooga Valley, GA
- Average snowfall in December: 0.83"
The month with the highest snowfall is February (1.73").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Chattanooga Valley, GA
- Average snowfall days in December: 2.1 days
The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Chattanooga Valley, GA
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in December
Chattanooga Valley, GA
- Average sunshine days in December: 16.4 days
The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in December
Chattanooga Valley, GA
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Chattanooga Valley, GA
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in December
Chattanooga Valley, GA
- Average visibility in December: 5mi
The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).
Chattanooga Valley, Georgia, USA
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