January weather forecast
Twin Forks, ID

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Weather in January

January, like December, is another subzero cold winter month in Twin Forks, Idaho, with an average temperature ranging between min 9.1°F (-12.7°C) and max 25.7°F (-3.5°C).

Temperature

January's arrival brings an average high-temperature of a still subzero cold 25.7°F (-3.5°C), slightly deviating from December's 23.9°F (-4.5°C). During the nights in January, the temperature averages to an extreme cold 9.1°F (-12.7°C).

Humidity

In January, the average relative humidity is 92%.

Rainfall

In Twin Forks, during January, the rain falls for 4.5 days and regularly aggregates up to 2.87" (73mm) of precipitation. In Twin Forks, during the entire year, the rain falls for 110.1 days and collects up to 23.35" (593mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall. The month with the most snowfall is January, when snow falls for 19.2 days and typically aggregates up to 24.06" (611mm) of snow.

Daylight

In January, the average length of the day is 9h and 22min.
On the first day of the month, sunrise is at 7:58 am and sunset at 4:58 pm. On the last day of January, sunrise is at 7:42 am and sunset at 5:33 pm MST.

Sunshine

The month with the least sunshine is January, with an average of 4h of sunshine.

UV index

January through March and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 1 during January translates into the following guidance:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Updated: Jul 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in January?

During January, Twin Forks experiences an average high-temperature of 25.7°F (-3.5°C) and a low-temperature of 9.1°F (-12.7°C).

What is the average humidity in January?

The average relative humidity in January is 92%.

How much does it rain in January?

In Twin Forks, in January, during 4.5 rainfall days, 2.87" (73mm) of precipitation is typically accumulated.

When does it snow the most?

January is the month with the most snowfall. Snow falls for 19.2 days and accumulates 24.06" (611mm) of snow.

How much does it snow in January?

In January, it is snowing for 19.2 days. Throughout January, 24.06" (611mm) of snow is accumulated.

What is the average length of the day in January?

The average day length in January is 9h and 22min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:58 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:33 pm MST.

What is the month with the least sunshine?

With an average of 4h of sunshine, January has the least sunshine of the year.

How long on average sun shines in January?

In Twin Forks, the average sunshine duration in January is 4h.

What are the months with the lowest UV index?

The months with the lowest UV index are January through March and December, with an average maximum UV index of 1.

What is the UV index intensity in January?

In Twin Forks, the average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.
Average max. wind speed
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
Twin Forks, ID

Average temperature in January - Twin Forks, ID
  • Average high temperature in January: 25.7°F

The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is December (23.9°F).

  • Average low temperature in January: 9.1°F

The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).

Average pressure in January
Twin Forks, ID

Average pressure in January - Twin Forks, ID
  • Average pressure in January: 30.27"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in January
Twin Forks, ID

Average wind speed in January - Twin Forks, ID
  • Average wind speed in January: 4.6mph

The windiest month (with the highest average wind speed) is June (6.3mph).
The calmest months (with the lowest average wind speed) are January and December (4.6mph).

Average humidity in January
Twin Forks, ID

Average humidity in January - Twin Forks, ID
  • Average humidity in January: 92%

The month with the highest relative humidity is February (93%).
The month with the lowest relative humidity is August (45%).

Average rainfall in January
Twin Forks, ID

Average rainfall in January - Twin Forks, ID
  • Average rainfall in January: 2.87"

The wettest month (with the highest rainfall) is February (2.91").
The driest month (with the least rainfall) is July (0.71").

Average rainfall days in January
Twin Forks, ID

Average rainfall days in January - Twin Forks, ID
  • Average rainfall days in January: 4.5 days

The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is January (4.5 days).

Average snowfall in January
Twin Forks, ID

Average snowfall in January - Twin Forks, ID
  • Average snowfall in January: 24.06"

The month with the highest snowfall is January (24.06").
The months with the least snowfall are July and August (0").

Average snowfall days in January
Twin Forks, ID

Average snowfall days in January - Twin Forks, ID
  • Average snowfall days in January: 19.2 days

The month with the highest number of snowfall days is December (21.8 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in January /
Average sunshine in January
Twin Forks, ID

Average daylight in January / Average sunshine in January - Twin Forks, ID
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in January: 4h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in January
Twin Forks, ID

Average sunshine days in January - Twin Forks, ID
  • Average sunshine days in January: 12.3 days

The month with the most sunshine days is July (20.6 days).
The month with the least sunshine days is February (7.3 days).

Average UV index in January
Twin Forks, ID

Average UV index in January - Twin Forks, ID
  • Average UV index in January: 1

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March and December (UV index 1).

Average cloud cover in January
Twin Forks, ID

Average cloud cover in January - Twin Forks, ID
  • Average cloud cover in January: 61

The month with the most cloud cover is February (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 13).

Average visibility in January
Twin Forks, ID

Average visibility in January - Twin Forks, ID
  • Average visibility in January: 3mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (3mi).

Twin Forks, Idaho, USA

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