January weather forecast
Brentwood, TN

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Weather in January

January in Brentwood, Tennessee, embraces the peak of winter with a fair amount of rainfall. The temperature range fluctuates between 30.6°F (-0.8°C) and 45°F (7.2°C), and the city experiences the maximum number of snowfall days, making this month the coldest in the year. The city remains predominantly cloudy, contributing to the less daylight hours. Despite being the coldest, this month provides a beautiful view of the snow-covered landscape. Dress warm, as January remains relatively chill both during the day and the nighttime.

Temperature

The coldest time of the year is January, with temperatures averaging a high of 45°F (7.2°C) and a low of 30.6°F (-0.8°C).

Humidity

In January, the average relative humidity is 75%.

Rainfall

In January, in Brentwood, the rain falls for 10.8 days. Throughout January, 2.56" (65mm) of precipitation is accumulated. In Brentwood, during the entire year, the rain falls for 166.2 days and collects up to 33.86" (860mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Brentwood, during January, snow falls for 2.3 days and regularly aggregates up to 0.71" (18mm) of snow. Throughout the year, there are 9.7 snowfall days, and 3.15" (80mm) of snow is accumulated.

Daylight

In Brentwood, the average length of the day in January is 10h and 2min.
On the first day of January in Brentwood, sunrise is at 6:57 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 5:12 pm CST.

Sunshine

In Brentwood, the average sunshine in January is 4.6h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Brentwood. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.
Note: An average UV index of 2 in January transforms into this advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Frequently asked questions

What time of the year is the coldest in Brentwood?

The coldest time of the year in Brentwood, Tennessee, is January, with temperatures averaging a high of 45°F (7.2°C) and a low of 30.6°F (-0.8°C).

What is the temperature in January in Brentwood?

The average high-temperature, in January, in Brentwood, is 45°F (7.2°C), while the average low-temperature is 30.6°F (-0.8°C).

What is the average humidity in January in Brentwood?

In January, the average relative humidity is 75%.

How many days does it rain in January in Brentwood?

In Brentwood, Tennessee, during January, the rain falls for 10.8 days and regularly aggregates up to 2.56" (65mm) of precipitation.

How many days does it snow in January in Brentwood?

In January, in Brentwood, Tennessee, it is snowing for 2.3 days. Throughout January, 0.71" (18mm) of snow is accumulated.

How many hours of daylight does Brentwood have in January?

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

When are sunrise and sunset in January in Brentwood?

On the first day of January in Brentwood, sunrise is at 6:57 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 5:12 pm CST.

How long on average sun shines in January in Brentwood?

The average sunshine duration in January in Brentwood, Tennessee, is 4.6h.

What are the months with the lowest UV index in Brentwood?

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

What is the UV index reading in January in Brentwood?

In January, the average daily maximum UV index in Brentwood is 2. A UV Index estimate of 2, and below, represents 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
Brentwood, TN

Average temperature in January - Brentwood, TN
  • Average high temperature in January: 45°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 (45°F).

  • Average low temperature in January: 30.6°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

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Average pressure in January
Brentwood, TN

Average pressure in January - Brentwood, 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 (29.97"Hg).

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Average wind speed in January
Brentwood, TN

Average wind speed in January - Brentwood, TN
  • Average wind speed in January: 8mph

The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

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Average humidity in January
Brentwood, TN

Average humidity in January - Brentwood, TN
  • Average humidity in January: 75%

The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are June and October (73%).

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Average rainfall in January
Brentwood, TN

Average rainfall in January - Brentwood, TN
  • Average rainfall in January: 2.56"

The wettest month (with the highest rainfall) is July (3.94").
The driest month (with the least rainfall) is November (1.81").

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Average rainfall days in January
Brentwood, TN

Average rainfall days in January - Brentwood, TN
  • Average rainfall days in January: 10.8 days

The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (9.3 days).

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Average snowfall in January
Brentwood, TN

Average snowfall in January - Brentwood, TN
  • Average snowfall in January: 0.71"

The month with the highest snowfall is March (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Brentwood, TN

Average snowfall days in January - Brentwood, TN
  • Average snowfall days in January: 2.3 days

The month with the highest number of snowfall days is February (3.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Brentwood, TN

Average daylight in January / Average sunshine in January - Brentwood, 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: 4h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days in January
Brentwood, TN

Average sunshine days in January - Brentwood, TN
  • Average sunshine days in January: 17.6 days

The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is July (10.3 days).

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Average UV index in January
Brentwood, TN

Average UV index in January - Brentwood, 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).

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Average cloud cover in January
Brentwood, TN

Average cloud cover in January - Brentwood, TN
  • Average cloud cover in January: 51

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).

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Average visibility in January
Brentwood, TN

Average visibility in January - Brentwood, 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).

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Brentwood, Tennessee, USA

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