January weather forecast
Cardiff, TN

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Weather in January

January, like December, is another chilly winter month in Cardiff, Tennessee, with temperature in the range of an average low of 29.1°F (-1.6°C) and an average high of 43.7°F (6.5°C).

Temperature

The coldest month is January, with an average high-temperature of 43.7°F (6.5°C) and an average low-temperature of 29.1°F (-1.6°C).

Humidity

The average relative humidity in January is 77%.

Rainfall

In January, the rain falls for 12.8 days. Throughout January, 3.03" (77mm) of precipitation is accumulated. Throughout the year, there are 176.6 rainfall days, and 39.41" (1001mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. In Cardiff, Tennessee, in January, snow falls for 3.3 days, with typically accumulated 0.87" (22mm) of snow. Throughout the year, in Cardiff, there are 11.6 snowfall days, and 3.15" (80mm) of snow is accumulated.

Daylight

In Cardiff, the average length of the day in January is 10h and 3min.
On the first day of the month, sunrise is at 7:48 am and sunset at 5:35 pm. On the last day of January, sunrise is at 7:39 am and sunset at 6:04 pm EST.

Sunshine

The months with the least sunshine are January and December, with an average of 4.9h of sunshine.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 2 in January translates into these instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

January, with average temperatures reaching a high of 43.7°F (6.5°C) and a low of 29.1°F (-1.6°C), is the coldest month.

How cold does it get in January?

An average high-temperature, in January, in Cardiff, is 43.7°F (6.5°C) and the average low-temperature is 29.1°F (-1.6°C).

What is the average humidity in January?

In January, the average relative humidity is 77%.

How many days does it rain in January?

In Cardiff, in January, during 12.8 rainfall days, 3.03" (77mm) of precipitation is typically accumulated.

How many days does it snow in January?

In Cardiff, in January, during 3.3 snowfall days, 0.87" (22mm) of snow is typically accumulated.

How many hours of daylight does Cardiff have in January?

In January, the average day length is 10h and 3min.

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 7:48 am and sunset at 5:35 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 6:04 pm EST.

What are the months with the least sunshine?

The months with the least sunshine are January and December, with an average of 4.9h of sunshine.

How long on average sun shines in January?

In January, the average sunshine duration is 4.9h.

When is the lowest UV index?

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 intensity in January?

In Cardiff, Tennessee, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.
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
Cardiff, TN

Average temperature in January - Cardiff, TN
  • Average high temperature in January: 43.7°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (43.7°F).

  • Average low temperature in January: 29.1°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).

Average pressure in January
Cardiff, TN

Average pressure in January - Cardiff, 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 (29.98"Hg).

Average wind speed in January
Cardiff, TN

Average wind speed in January - Cardiff, TN
  • Average wind speed in January: 6.1mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).

Average humidity in January
Cardiff, TN

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

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is November (76%).

Average rainfall in January
Cardiff, TN

Average rainfall in January - Cardiff, TN
  • Average rainfall in January: 3.03"

The wettest month (with the highest rainfall) is July (4.29").
The driest month (with the least rainfall) is September (2.32").

Average rainfall days in January
Cardiff, TN

Average rainfall days in January - Cardiff, TN
  • Average rainfall days in January: 12.8 days

The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (10.7 days).

Average snowfall in January
Cardiff, TN

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

The month with the highest snowfall is February (1.18").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Cardiff, TN

Average snowfall days in January - Cardiff, TN
  • Average snowfall days in January: 3.3 days

The months with the highest number of snowfall days are January and February (3.3 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
Cardiff, TN

Average daylight in January / Average sunshine in January - Cardiff, TN
  • Average daylight in January: 10h and 1min

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 5min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 4h and 54min).

Average sunshine days in January
Cardiff, TN

Average sunshine days in January - Cardiff, TN
  • Average sunshine days in January: 15.8 days

The months with the most sunshine days are October and November (18.5 days).
The month with the least sunshine days is July (9.4 days).

Average UV index in January
Cardiff, TN

Average UV index in January - Cardiff, 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
Cardiff, TN

Average cloud cover in January - Cardiff, TN
  • Average cloud cover in January: 50

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 31).

Average visibility in January
Cardiff, TN

Average visibility in January - Cardiff, TN
  • Average visibility in January: 5mi

The months with the highest visibility are April, June, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, August, September and December (5mi).

Cardiff, Tennessee, USA

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