January weather forecast
Greenbrier, TN

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Weather in January

January, like December, is a frosty winter month in Greenbrier, Tennessee, with temperature in the range of an average high of 43°F (6.1°C) and an average low of 29.3°F (-1.5°C).

Temperature

With average temperatures fluctuating between a high of 43°F (6.1°C) and a low of 29.3°F (-1.5°C), January stands out as the coldest month.

Humidity

The average relative humidity in January in Greenbrier is 77%.

Rainfall

In Greenbrier, Tennessee, during January, the rain falls for 12 days and regularly aggregates up to 2.4" (61mm) of precipitation. In Greenbrier, during the entire year, the rain falls for 174.6 days and collects up to 37.68" (957mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Greenbrier, Tennessee, in January, snow falls for 4.8 days, with typically accumulated 0.87" (22mm) of snow. In Greenbrier, during the entire year, snow falls for 14.9 days and aggregates up to 4.06" (103mm) of snow.

Daylight

The average length of the day in January in Greenbrier is 10h and 1min.
On the first day of the month, sunrise is at 6:58 am and sunset at 4:42 pm. On the last day of January, sunrise is at 6:49 am and sunset at 5:11 pm CST.

Sunshine

The average sunshine in January is 4.5h.

UV index

January, February 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 minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high UV index of 2 in January translates into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Greenbrier?

January is the month when Greenbrier, Tennessee, sees the average lowest temperatures, with a high of 43°F (6.1°C) and a low of 29.3°F (-1.5°C).

Is it cold in Greenbrier during January?

An average high-temperature, in January, in Greenbrier, is 43°F (6.1°C) and the average low-temperature is 29.3°F (-1.5°C).

What is the average humidity in January in Greenbrier?

In January, the average relative humidity in Greenbrier, Tennessee, is 77%.

How many days does it rain in January in Greenbrier?

In Greenbrier, Tennessee, in January, it is raining for 12 days, with typically 2.4" (61mm) of accumulated precipitation.

How many days does it snow in January in Greenbrier?

In Greenbrier, Tennessee, in January, during 4.8 snowfall days, 0.87" (22mm) of snow is typically accumulated.

How many hours of daylight does Greenbrier have in January?

In Greenbrier, Tennessee, the average day length in January is 10h and 1min.

When is the sunrise / sunset in January in Greenbrier?

On the first day of January in Greenbrier, Tennessee, sunrise is at 6:58 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 5:11 pm CST.

How long on average sun shines in January in Greenbrier?

In Greenbrier, Tennessee, the average sunshine duration in January is 4.5h.

What is the month with the lowest UV index in Greenbrier?

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

What is the UV index reading in January in Greenbrier?

In Greenbrier, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Greenbrier, TN

Average temperature in January - Greenbrier, TN
  • Average high temperature in January: 43°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (43°F).

  • Average low temperature in January: 29.3°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).

Average pressure in January
Greenbrier, TN

Average pressure in January - Greenbrier, 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 (29.96"Hg).

Average wind speed in January
Greenbrier, TN

Average wind speed in January - Greenbrier, TN
  • Average wind speed in January: 8.4mph

The windiest month (with the highest average wind speed) is February (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

Average humidity in January
Greenbrier, TN

Average humidity in January - Greenbrier, TN
  • Average humidity in January: 77%

The months with the highest relative humidity are March, May and December (79%).
The month with the lowest relative humidity is October (74%).

Average rainfall in January
Greenbrier, TN

Average rainfall in January - Greenbrier, TN
  • Average rainfall in January: 2.4"

The wettest month (with the highest rainfall) is July (4.37").
The driest month (with the least rainfall) is September (2.24").

Average rainfall days in January
Greenbrier, TN

Average rainfall days in January - Greenbrier, TN
  • Average rainfall days in January: 12 days

The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (9.7 days).

Average snowfall in January
Greenbrier, TN

Average snowfall in January - Greenbrier, TN
  • Average snowfall in January: 0.87"

The month with the highest snowfall is February (1.1").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Greenbrier, TN

Average snowfall days in January - Greenbrier, TN
  • Average snowfall days in January: 4.8 days

The month with the highest number of snowfall days is January (4.8 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
Greenbrier, TN

Average daylight in January / Average sunshine in January - Greenbrier, 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 42min).

  • Average sunshine in January: 4h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

Average sunshine days in January
Greenbrier, TN

Average sunshine days in January - Greenbrier, TN
  • Average sunshine days in January: 15.7 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (9.5 days).

Average UV index in January
Greenbrier, TN

Average UV index in January - Greenbrier, 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
Greenbrier, TN

Average cloud cover in January - Greenbrier, TN
  • Average cloud cover in January: 53

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in January
Greenbrier, TN

Average visibility in January - Greenbrier, TN
  • Average visibility in January: 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).

Greenbrier, Tennessee, USA

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