Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January is the month when Chattanooga, Tennessee, sees the lowest average temperatures, with a high of 46°F (7.8°C) and a low of 30.7°F (-0.7°C).Humidity
In Chattanooga, the average relative humidity in January is 76%.Rainfall
In January, the rain falls for 13.2 days. Throughout January, 3.62" (92mm) of precipitation is accumulated. In Chattanooga, during the entire year, the rain falls for 174.4 days and collects up to 41.14" (1045mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Chattanooga, during January, snow falls for 4.1 days and regularly aggregates up to 0.87" (22mm) of snow. Throughout the year, there are 13.2 snowfall days, and 4.17" (106mm) of snow is accumulated.Daylight
The average length of the day in January is 10h and 7min.On the first day of the month, sunrise is at 7:49 am and sunset at 5:40 pm. On the last day of January, sunrise is at 7:40 am and sunset at 6:08 pm EST.
Sunshine
The average sunshine in January is 5.3h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.Note: In January, a daily maximum UV index of 2 leads to the following instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
What is the average January temperature in Chattanooga?
What is the average humidity in January?
How many days does it rain in January?
How much does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
How long on average sun shines in January?
What are the months with the lowest UV index in Chattanooga?
What is the UV index intensity in January in Chattanooga?
Average temperature in January
Chattanooga, TN
- Average high temperature in January: 46°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in January: 30.7°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).
Average pressure in January
Chattanooga, TN
- Average pressure in January: 30.17"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 January
Chattanooga, TN
- Average wind speed in January: 6.2mph
The windiest month (with the highest average wind speed) is February (6.4mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in January
Chattanooga, TN
- Average humidity in January: 76%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, July, August, October and November (75%).
Average rainfall in January
Chattanooga, TN
- Average rainfall in January: 3.62"
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 January
Chattanooga, TN
- Average rainfall days in January: 13.2 days
The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (9.8 days).
Average snowfall in January
Chattanooga, TN
- Average snowfall in January: 0.87"
The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Chattanooga, TN
- Average snowfall days in January: 4.1 days
The month with the highest number of snowfall days is January (4.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Chattanooga, TN
- Average daylight in January: 10h and 1min
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 48min).
- Average sunshine in January: 5h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in January
Chattanooga, TN
- Average sunshine days in January: 15.3 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in January
Chattanooga, TN
- Average UV index in January: 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 January
Chattanooga, TN
- Average cloud cover in January: 48
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in January
Chattanooga, TN
- Average visibility in January: 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, Tennessee, USA
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