January weather forecast
Mountain Home, ID

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Weather in January

January in Mountain Home, Idaho, USA is characterized by cold temperatures and a high relative humidity of 76%. The average high is 37.6°F (3.1°C) while the low dips to 26.8°F (-2.9°C). January also marks the peak of the snowfall season, with a significant 3.46" (88mm) observed this month and snowfall occurring on average 5.7 days. As the year begins, the chilly winter weather persists, getting slightly colder in comparison to December. Expect shorter daylight hours, hinting at long, cozy winter nights indoors.

Temperature

Mountain Home measures an average high-temperature of a still cold 37.6°F (3.1°C) in January, nearly consistent with the preceding month. Mountain Home witnesses a consistent average low-temperature of 26.8°F (-2.9°C) throughout January.

Humidity

With an average relative humidity of 76%, January is the most humid month.

Rainfall

In Mountain Home, Idaho, during January, the rain falls for 8.3 days and regularly aggregates up to 1.14" (29mm) of precipitation. Throughout the year, there are 82.3 rainfall days, and 7.44" (189mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Mountain Home. In Mountain Home, in January, during 5.7 snowfall days, 3.46" (88mm) of snow is typically accumulated. Throughout the year, in Mountain Home, there are 22.6 snowfall days, and 11.02" (280mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 26min.
On the first day of January, sunrise is at 8:14 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 7:59 am and sunset at 5:53 pm MST.

Sunshine

In January, the average sunshine in Mountain Home, Idaho, 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 Mountain Home. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.
Note: In January, an average UV index of 2 transforms into the following instructions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
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Frequently asked questions

How cold does it get in Mountain Home in January?

The average high-temperature, in January, in Mountain Home, is 37.6°F (3.1°C), while the average low-temperature is 26.8°F (-2.9°C).

What is the most humid month in Mountain Home?

The most humid month is January, with an average relative humidity of 76%.

What is the average humidity in January in Mountain Home?

In Mountain Home, the average relative humidity in January is 76%.

How much does it rain in Mountain Home in January?

In Mountain Home, Idaho, in January, it is raining for 8.3 days, with typically 1.14" (29mm) of accumulated precipitation.

How many days does it snow in January in Mountain Home?

In January, in Mountain Home, Idaho, it is snowing for 5.7 days. Throughout January, 3.46" (88mm) of snow is accumulated.

What is the average length of the day in January in Mountain Home?

The average day length in January in Mountain Home, Idaho, is 9h and 26min.

What time are sunrise and sunset in January in Mountain Home?

In January, on the first day of the month, sunrise is at 8:14 am and sunset at 5:18 pm. On the last day of the month, in Mountain Home, Idaho, sunrise is at 7:59 am and sunset at 5:53 pm MST.

How many hours of sunshine does Mountain Home have in January?

The average sunshine duration in January in Mountain Home, Idaho, is 6.3h.

When is the lowest UV index in Mountain Home?

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

What is the UV index reading in January in Mountain Home?

The average daily maximum UV index in January in Mountain Home is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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
Mountain Home, ID

Average temperature in January - Mountain Home, ID
  • Average high temperature in January: 37.6°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is December (36.9°F).

  • Average low temperature in January: 26.8°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is December (25.9°F).

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Average pressure in January
Mountain Home, ID

Average pressure in January - Mountain Home, ID
  • Average pressure in January: 30.26"Hg

The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in January
Mountain Home, ID

Average wind speed in January - Mountain Home, ID
  • Average wind speed in January: 6.8mph

The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).

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Average humidity in January
Mountain Home, ID

Average humidity in January - Mountain Home, ID
  • Average humidity in January: 76%

The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is July (25%).

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Average rainfall in January
Mountain Home, ID

Average rainfall in January - Mountain Home, ID
  • Average rainfall in January: 1.14"

The wettest month (with the highest rainfall) is December (1.3").
The driest month (with the least rainfall) is August (0.08").

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Average rainfall days in January
Mountain Home, ID

Average rainfall days in January - Mountain Home, ID
  • Average rainfall days in January: 8.3 days

The month with the highest number of rainy days is March (13.7 days).
The month with the least rainy days is July (2 days).

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Average snowfall in January
Mountain Home, ID

Average snowfall in January - Mountain Home, ID
  • Average snowfall in January: 3.46"

The month with the highest snowfall is December (4.06").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Mountain Home, ID

Average snowfall days in January - Mountain Home, ID
  • Average snowfall days in January: 5.7 days

The month with the highest number of snowfall days is December (7.1 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
Mountain Home, ID

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • 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 12min).

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Average sunshine days in January
Mountain Home, ID

Average sunshine days in January - Mountain Home, ID
  • Average sunshine days in January: 18.8 days

The month with the most sunshine days is July (28.3 days).
The month with the least sunshine days is March (14.9 days).

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Average UV index in January
Mountain Home, ID

Average UV index in January - Mountain Home, ID
  • Average UV index in January: 2

The month with the highest UV index is July (UV index 7).
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
Mountain Home, ID

Average cloud cover in January - Mountain Home, ID
  • Average cloud cover in January: 33

The month with the most cloud cover is December (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 7).

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Average visibility in January
Mountain Home, ID

Average visibility in January - Mountain Home, ID
  • 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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Mountain Home, Idaho, USA

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