January weather forecastMountain Home, ID
January
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
As Mountain Home welcomes January, the average high-temperature stabilizes at a still cold 37.6°F (3.1°C), showing little deviation from December's 36.9°F (2.7°C). Mountain Home's average low-temperature for the month of January records at a subzero cold 26.8°F (-2.9°C).Humidity
With an average relative humidity of 76%, January is the most humid month.Rainfall
In Mountain Home, in January, it is raining for 8.3 days, with typically 1.14" (29mm) of accumulated precipitation. Throughout the year, in Mountain Home, there are 82.3 rainfall days, and 7.44" (189mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Mountain Home, in January, snow falls for 5.7 days, with typically accumulated 3.46" (88mm) of snow. Throughout the year, there are 22.6 snowfall days, and 11.02" (280mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 26min.On the first day of January in Mountain Home, 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 Mountain Home, 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. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 2 during January translates into the following recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Around midday, solar radiation is most harmful; hence, exposure should be limited. Experience reduced UV exposure by about half when donning a wide-brim hat. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in January /
Average sunshine in January
Mountain Home, ID
- Average daylight in January: 9h and 24min
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 18min
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).
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).
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).
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).
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).





