January weather forecastJefferson City, TN

January

Weather in January

January, the same as December, in Jefferson City, Tennessee, is another chilly winter month, with temperature in the range of an average low of 28.6°F (-1.9°C) and an average high of 45°F (7.2°C).

Temperature

Jefferson City notes the coldest temperatures in January, with a high average of 45°F (7.2°C) and a low of 28.6°F (-1.9°C).

Humidity

In January, the average relative humidity in Jefferson City, Tennessee, is 76%.

Rainfall

In Jefferson City, in January, during 10 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. In Jefferson City, during the entire year, the rain falls for 135.1 days and collects up to 22.01" (559mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Jefferson City, Tennessee, during January, snow falls for 4.5 days and regularly aggregates up to 1.14" (29mm) of snow. Throughout the year, in Jefferson City, there are 15.8 snowfall days, and 4.57" (116mm) of snow is accumulated.

Daylight

The average length of the day in January in Jefferson City, Tennessee, is 10h and 2min.
On the first day of January in Jefferson City, sunrise is at 7:44 am and sunset at 5:30 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:59 pm EST.

Sunshine

January has the least sunshine of the year, with an average of 5.2h of sunshine.

UV index

The months with the lowest UV index in Jefferson City are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: A maximum UV index of 2 in January translates into the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The lowest temperatures are recorded in January, with averages reaching a high of 45°F (7.2°C) and a low of 28.6°F (-1.9°C).

Jefferson City in January has an average high-temperature of 45°F (7.2°C) and an average low-temperature of 28.6°F (-1.9°C).

The average relative humidity in January in Jefferson City, Tennessee, is 76%.

In January, the rain falls for 10 days. Throughout January, 1.89" (48mm) of precipitation is accumulated.

In January, it is snowing for 4.5 days. Throughout January, 1.14" (29mm) of snow is accumulated.

In January, the average day length in Jefferson City is 10h and 2min.

In January, on the first day of the month, sunrise is at 7:44 am and sunset at 5:30 pm. On the last day of the month, in Jefferson City, sunrise is at 7:35 am and sunset at 5:59 pm EST.

January has the least sunshine of the year, with an average of 5.2h of sunshine.

In January, the average sunshine duration is 5.2h.

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.

In January, the average daily maximum UV index in Jefferson City is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Jefferson City, TN

  • Average high temperature in January: 45°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (45°F).

  • Average low temperature in January: 28.6°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).

Average pressure in January
Jefferson City, TN

  • Average pressure in January: 30.16"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

Average wind speed in January
Jefferson City, TN

  • Average wind speed in January: 5.6mph

The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in January
Jefferson City, TN

  • Average humidity in January: 76%

The months with the highest relative humidity are February and December (78%).
The months with the lowest relative humidity are July and August (72%).

Average rainfall in January
Jefferson City, TN

  • Average rainfall in January: 1.89"

The wettest month (with the highest rainfall) is February (2.8").
The driest month (with the least rainfall) is September (1.14").

Average rainfall days in January
Jefferson City, TN

  • Average rainfall days in January: 10 days

The month with the highest number of rainy days is July (13.6 days).
The month with the least rainy days is October (8.5 days).

Average snowfall in January
Jefferson City, TN

  • Average snowfall in January: 1.14"

The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Jefferson City, TN

  • Average snowfall days in January: 4.5 days

The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Jefferson City, TN

  • Average daylight in January: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in January: 5h and 12min

The months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).

Average sunshine days in January
Jefferson City, TN

  • Average sunshine days in January: 17.5 days

The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is February (14.4 days).

Average UV index in January
Jefferson City, 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, February and December (UV index 2).

Average cloud cover in January
Jefferson City, TN

  • Average cloud cover in January: 46

The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 26).

Average visibility in January
Jefferson City, TN

  • Average visibility in January: 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).