January weather forecast
Sun Valley, NV

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Weather in January

January, the same as December, is a wintry winter month in Sun Valley, Nevada, with an average temperature ranging between max 39.7°F (4.3°C) and min 24.4°F (-4.2°C).

Temperature

Sun Valley's shift into January is marked by a subtle change to a still icy 39.7°F (4.3°C) from December's 37.8°F (3.2°C) in temperature. January nights experience a consistent temperature drop to a subzero cold 24.4°F (-4.2°C).

Humidity

The most humid month in Sun Valley is January, with an average relative humidity of 73%.

Rainfall

In January, in Sun Valley, the rain falls for 7.3 days. Throughout January, 1.18" (30mm) of precipitation is accumulated. Throughout the year, there are 68 rainfall days, and 8.07" (205mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall in Sun Valley. In January, in Sun Valley, it is snowing for 6.2 days. Throughout January, 4.02" (102mm) of snow is accumulated. In Sun Valley, during the entire year, snow falls for 33.2 days and aggregates up to 23.62" (600mm) of snow.

Daylight

In January, the average length of the day in Sun Valley is 9h and 45min.
On the first day of the month, sunrise is at 7:19 am and sunset at 4:45 pm. On the last day of January, in Sun Valley, sunrise is at 7:07 am and sunset at 5:17 pm PST.

Sunshine

The average sunshine in January is 6.3h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Sun Valley. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index of 2 during January translates into these guidelines:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. When the Sun is at its strongest around midday, find shade and limit exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Frequently asked questions

Is it cold in Sun Valley during January?

Sun Valley in January has an average high-temperature of 39.7°F (4.3°C) and an average low-temperature of 24.4°F (-4.2°C).

What is the most humid month in Sun Valley?

With an average relative humidity of 73%, January is the most humid month in Sun Valley, Nevada.

What is the average humidity in January in Sun Valley?

In January, the average relative humidity in Sun Valley, Nevada, is 73%.

How much does it rain in Sun Valley in January?

In Sun Valley, in January, it is raining for 7.3 days, with typically 1.18" (30mm) of accumulated precipitation.

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

In Sun Valley, Nevada, during January, snow falls for 6.2 days and regularly aggregates up to 4.02" (102mm) of snow.

What is the average length of the day in January in Sun Valley?

In January, the average day length in Sun Valley, Nevada, is 9h and 45min.

When are sunrise and sunset in January in Sun Valley?

On the first day of January, sunrise is at 7:19 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:17 pm PST.

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

The average sunshine duration in January is 6.3h.

When is the lowest UV index in Sun Valley?

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

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

The average daily maximum UV index in January in Sun Valley, Nevada, is 2. A UV Index reading of 2, and below, represents a low health threat 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
Sun Valley, NV

Average temperature in January - Sun Valley, NV
  • Average high temperature in January: 39.7°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (37.8°F).

  • Average low temperature in January: 24.4°F

The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is December (23.4°F).

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Average pressure in January
Sun Valley, NV

Average pressure in January - Sun Valley, NV
  • Average pressure in January: 30.19"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in January
Sun Valley, NV

Average wind speed in January - Sun Valley, NV
  • Average wind speed in January: 4.9mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).

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Average humidity in January
Sun Valley, NV

Average humidity in January - Sun Valley, NV
  • Average humidity in January: 73%

The month with the highest relative humidity is January (73%).
The months with the lowest relative humidity are July and August (28%).

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Average rainfall in January
Sun Valley, NV

Average rainfall in January - Sun Valley, NV
  • Average rainfall in January: 1.18"

The wettest month (with the highest rainfall) is February (1.38").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days in January
Sun Valley, NV

Average rainfall days in January - Sun Valley, NV
  • Average rainfall days in January: 7.3 days

The month with the highest number of rainy days is March (11.2 days).
The month with the least rainy days is August (1.8 days).

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Average snowfall in January
Sun Valley, NV

Average snowfall in January - Sun Valley, NV
  • Average snowfall in January: 4.02"

The month with the highest snowfall is February (6.06").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in January
Sun Valley, NV

Average snowfall days in January - Sun Valley, NV
  • Average snowfall days in January: 6.2 days

The month with the highest number of snowfall days is December (7.8 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in January /
Average sunshine in January
Sun Valley, NV

Average daylight in January / Average sunshine in January - Sun Valley, NV
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in January: 6h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).

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Average sunshine days in January
Sun Valley, NV

Average sunshine days in January - Sun Valley, NV
  • Average sunshine days in January: 19.5 days

The month with the most sunshine days is August (28.2 days).
The month with the least sunshine days is March (15.9 days).

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Average UV index in January
Sun Valley, NV

Average UV index in January - Sun Valley, NV
  • Average UV index in January: 2

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in January
Sun Valley, NV

Average cloud cover in January - Sun Valley, NV
  • Average cloud cover in January: 32

The month with the most cloud cover is December (Cloud cover 33).
The months with the least cloud cover are July and August (Cloud cover 7).

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Average visibility in January
Sun Valley, NV

Average visibility in January - Sun Valley, NV
  • 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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Sun Valley, Nevada, USA

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