Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January brings an average high-temperature of a still freezing cold 29.7°F (-1.3°C), showing a slight difference from December's 27.9°F (-2.3°C). January brings Big Arm a consistent average low-temperature of 17.8°F (-7.9°C).Humidity
January is the most humid month in Big Arm, with an average relative humidity of 91%.Rainfall
In Big Arm, during January, the rain falls for 12.4 days and regularly aggregates up to 1.69" (43mm) of precipitation. In Big Arm, during the entire year, the rain falls for 160.2 days and collects up to 18.11" (460mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In January, in Big Arm, it is snowing for 19.7 days. Throughout January, 10.24" (260mm) of snow is accumulated. Throughout the year, in Big Arm, there are 99 snowfall days, and 47.28" (1201mm) of snow is accumulated.Daylight
The average length of the day in January in Big Arm, Montana, is 8h and 56min.On the first day of the month, sunrise is at 8:26 am and sunset at 4:55 pm. On the last day of January, in Big Arm, sunrise is at 8:05 am and sunset at 5:35 pm MST.
Sunshine
With an average of 4.5h of sunshine, January has the least sunshine of the year.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A typical high UV index of 1 in January suggests the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
How cold is it in Big Arm in January?
What is the most humid month in Big Arm?
What is the average humidity in January in Big Arm?
How much does it rain in Big Arm in January?
How many days does it snow in January in Big Arm?
How many hours of daylight does Big Arm have in January?
What time are sunrise and sunset in January in Big Arm?
What is the month with the least sunshine in Big Arm?
How long on average sun shines in January in Big Arm?
What is the month with the lowest UV index in Big Arm?
What is the UV index reading in January in Big Arm?
Average temperature in January
Big Arm, MT
- Average high temperature in January: 29.7°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (27.9°F).
- Average low temperature in January: 17.8°F
The months with the highest average low temperature are July and August (48.9°F).
The coldest month (with the lowest average low temperature) is December (16.7°F).
Average pressure in January
Big Arm, MT
- Average pressure in January: 30.17"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Big Arm, MT
- Average wind speed in January: 4mph
The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in January
Big Arm, MT
- Average humidity in January: 91%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (51%).
Average rainfall in January
Big Arm, MT
- Average rainfall in January: 1.69"
The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are July and August (0.55").
Average rainfall days in January
Big Arm, MT
- Average rainfall days in January: 12.4 days
The months with the highest number of rainy days are March and April (18.8 days).
The month with the least rainy days is August (7 days).
Average snowfall in January
Big Arm, MT
- Average snowfall in January: 10.24"
The month with the highest snowfall is February (10.28").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Big Arm, MT
- Average snowfall days in January: 19.7 days
The month with the highest number of snowfall days is December (19.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Big Arm, MT
- Average daylight in January: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in January: 4h and 3min
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 30min).
Average sunshine days in January
Big Arm, MT
- Average sunshine days in January: 9.3 days
The month with the most sunshine days is July (21.3 days).
The month with the least sunshine days is March (6.4 days).
Average UV index in January
Big Arm, MT
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in January
Big Arm, MT
- Average cloud cover in January: 54
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 14).
Average visibility in January
Big Arm, MT
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Big Arm, Montana, USA
Weather forecast for your location
2. Allow the app to use your location
