January weather forecastMill Iron, MT
January
Weather in January
January, like December, is a freezing cold winter month in Mill Iron, Montana, with an average temperature ranging between max 26.1°F (-3.3°C) and min 13.3°F (-10.4°C).Temperature
January, noted for its average high-temperature of 26.1°F (-3.3°C) and an average low-temperature of 13.3°F (-10.4°C), is considered the coldest month.Humidity
With an average relative humidity of 85%, January is the most humid month.Rainfall
The months with the least rainfall are January and December Rain falls for 3.1 days and accumulates 0.55" (14mm) of rain.Snowfall
Months with snowfall are January through May, September through December. In January, it is snowing for 11.7 days. Throughout January, 2.95" (75mm) of snow is accumulated. Throughout the year, there are 62.4 snowfall days, and 21.97" (558mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 9min.On the first day of the month, sunrise is at 7:38 am and sunset at 4:22 pm. On the last day of January, sunrise is at 7:20 am and sunset at 5:00 pm MST.
Sunshine
In January, the average sunshine is 4.9h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 1 in January converts into the following recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Mill Iron, MT
- Average high temperature in January: 26.1°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in January: 13.3°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in January
Mill Iron, MT
- Average pressure in January: 30.15"Hg
The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in January
Mill Iron, MT
- Average wind speed in January: 11.8mph
The windiest months (with the highest average wind speed) are April and October (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (10.1mph).
Average humidity in January
Mill Iron, MT
- Average humidity in January: 85%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (46%).
Average rainfall in January
Mill Iron, MT
- Average rainfall in January: 0.55"
The wettest month (with the highest rainfall) is May (2.6").
The driest months (with the least rainfall) are January and December (0.55").
Average rainfall days in January
Mill Iron, MT
- Average rainfall days in January: 3.1 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (3.1 days).
Average snowfall in January
Mill Iron, MT
- Average snowfall in January: 2.95"
The month with the highest snowfall is February (3.86").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Mill Iron, MT
- Average snowfall days in January: 11.7 days
The month with the highest number of snowfall days is February (12 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Mill Iron, MT
- Average daylight in January: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in January: 4h and 54min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in January
Mill Iron, MT
- Average sunshine days in January: 17.3 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.9 days).
Average UV index in January
Mill Iron, MT
- Average UV index in January: 1
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Mill Iron, MT
- Average cloud cover in January: 50
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 18).
Average visibility in January
Mill Iron, MT
- 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).





