January weather forecastFallon, MT
January
Weather in January
January, like December, is a freezing cold winter month in Fallon, Montana, with an average temperature ranging between max 25.5°F (-3.6°C) and min 12.6°F (-10.8°C).Temperature
The coldest time of the year is January, with temperatures averaging a high of 25.5°F (-3.6°C) and a low of 12.6°F (-10.8°C).Humidity
January is the most humid month, with an average relative humidity of 85%.Rainfall
January is the month with the least rainfall. Rain falls for 4.4 days and accumulates 0.51" (13mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Fallon. In Fallon, in January, during 12.9 snowfall days, 2.87" (73mm) of snow is typically accumulated. In Fallon, during the entire year, snow falls for 58.7 days and aggregates up to 17.28" (439mm) of snow.Daylight
In Fallon, Montana, the average length of the day in January is 9h and 2min.On the first day of the month, sunrise is at 7:45 am and sunset at 4:22 pm. On the last day of January, sunrise is at 7:26 am and sunset at 5:01 pm MST.
Sunshine
In Fallon, the average sunshine in January is 5.1h.UV index
The average daily maximum UV index in January in Fallon is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In January, the maximum UV index of 2 translates into these guidelines:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The Sun's radiation is especially intense around midday; try to stay in shade during this period. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Fallon, MT
- Average high temperature in January: 25.5°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in January: 12.6°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in January
Fallon, MT
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in January
Fallon, MT
- Average wind speed in January: 10.4mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is August (9.3mph).
Average humidity in January
Fallon, 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 (43%).
Average rainfall in January
Fallon, MT
- Average rainfall in January: 0.51"
The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in January
Fallon, MT
- Average rainfall days in January: 4.4 days
The month with the highest number of rainy days is May (13.7 days).
The month with the least rainy days is February (4 days).
Average snowfall in January
Fallon, MT
- Average snowfall in January: 2.87"
The month with the highest snowfall is February (3.62").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Fallon, MT
- Average snowfall days in January: 12.9 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Fallon, MT
- Average daylight in January: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in January: 5h and 6min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in January
Fallon, MT
- Average sunshine days in January: 16.4 days
The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is June (13.1 days).
Average UV index in January
Fallon, MT
- 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 November and December (UV index 1).
Average cloud cover in January
Fallon, MT
- Average cloud cover in January: 47
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 17).
Average visibility in January
Fallon, 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).





