January weather forecast
Sun Valley, TN

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Weather in January

January, the same as December, in Sun Valley, Tennessee, is another chilly winter month, with an average temperature varying between 43.5°F (6.4°C) and 29.3°F (-1.5°C).

Temperature

Sun Valley's coldest month, January, generally records average temperatures ranging from a high of 43.5°F (6.4°C) to a low of 29.3°F (-1.5°C).

Humidity

In Sun Valley, the average relative humidity in January is 77%.

Rainfall

In Sun Valley, in January, during 13.8 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. Throughout the year, there are 173.9 rainfall days, and 38.31" (973mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Sun Valley, in January, snow falls for 4.6 days, with typically accumulated 0.87" (22mm) of snow. In Sun Valley, during the entire year, snow falls for 13.7 days and aggregates up to 2.99" (76mm) of snow.

Daylight

In January, the average length of the day is 10h and 2min.
On the first day of January, sunrise is at 6:53 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 5:07 pm CST.

Sunshine

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. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In January, a regular UV index of 2 translates into these guidelines:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

What time of the year is the coldest in Sun Valley?

January, marked by an average high-temperature of 43.5°F (6.4°C) and a low-temperature of 29.3°F (-1.5°C), is the coldest month in Sun Valley.

Is it cold in Sun Valley during January?

During January, Sun Valley experiences an average high-temperature of 43.5°F (6.4°C) and a low-temperature of 29.3°F (-1.5°C).

What is the average humidity in January in Sun Valley?

The average relative humidity in January in Sun Valley is 77%.

How many days does it rain in January in Sun Valley?

In January, in Sun Valley, the rain falls for 13.8 days. Throughout January, 3.07" (78mm) of precipitation is accumulated.

How many days does it snow in January in Sun Valley?

In January, in Sun Valley, it is snowing for 4.6 days. Throughout January, 0.87" (22mm) of snow is accumulated.

How many hours of daylight does Sun Valley have in January?

The average day length in January in Sun Valley is 10h and 2min.

When is the sunrise / sunset in January in Sun Valley?

In January, on the first day of the month, sunrise is at 6:53 am and sunset at 4:38 pm. On the last day of the month, in Sun Valley, Tennessee, sunrise is at 6:43 am and sunset at 5:07 pm CST.

How many hours of sunshine does Sun Valley have in January?

In Sun Valley, Tennessee, the average sunshine duration in January is 4.6h.

When is the lowest UV index in Sun Valley?

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

What is the UV index intensity in January in Sun Valley?

In Sun Valley, Tennessee, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe 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
Sun Valley, TN

Average temperature in January - Sun Valley, TN
  • Average high temperature in January: 43.5°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (43.5°F).

  • Average low temperature in January: 29.3°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).

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Average pressure in January
Sun Valley, TN

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

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Average wind speed in January
Sun Valley, TN

Average wind speed in January - Sun Valley, TN
  • Average wind speed in January: 7.1mph

The windiest month (with the highest average wind speed) is February (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).

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Average humidity in January
Sun Valley, TN

Average humidity in January - Sun Valley, TN
  • Average humidity in January: 77%

The months with the highest relative humidity are February, March and December (79%).
The month with the lowest relative humidity is November (75%).

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Average rainfall in January
Sun Valley, TN

Average rainfall in January - Sun Valley, TN
  • Average rainfall in January: 3.07"

The wettest month (with the highest rainfall) is February (4.09").
The driest month (with the least rainfall) is September (2.01").

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Average rainfall days in January
Sun Valley, TN

Average rainfall days in January - Sun Valley, TN
  • Average rainfall days in January: 13.8 days

The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is November (10.8 days).

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Average snowfall in January
Sun Valley, TN

Average snowfall in January - Sun Valley, TN
  • Average snowfall in January: 0.87"

The month with the highest snowfall is February (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Sun Valley, TN

Average snowfall days in January - Sun Valley, TN
  • Average snowfall days in January: 4.6 days

The month with the highest number of snowfall days is January (4.6 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
Sun Valley, TN

Average daylight in January / Average sunshine in January - Sun Valley, 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 4min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

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Average sunshine days in January
Sun Valley, TN

Average sunshine days in January - Sun Valley, TN
  • Average sunshine days in January: 13.8 days

The month with the most sunshine days is October (18.2 days).
The months with the least sunshine days are February and July (11.3 days).

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Average UV index in January
Sun Valley, TN

Average UV index in January - Sun Valley, 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
Sun Valley, TN

Average cloud cover in January - Sun Valley, TN
  • Average cloud cover in January: 52

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 29).

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Average visibility in January
Sun Valley, TN

Average visibility in January - Sun Valley, TN
  • Average visibility in January: 5mi

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

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Sun Valley, Tennessee, USA

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