January weather forecastJoliet, MT
January
Weather in January
January in Joliet, Montana, is a cold winter month, with temperature in the range of an average high of 32°F (0°C) and an average low of 18.7°F (-7.4°C).Temperature
Joliet records an average high-temperature of an icy 32°F (0°C) in January, closely mirroring the climate of the previous month. Joliet encounters a steady low-temperature average of 18.7°F (-7.4°C) throughout the month of January.Humidity
The most humid month is January, with an average relative humidity of 76%.Rainfall
January is the month with the least rainfall. Rain falls for 6 days and accumulates 0.51" (13mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. In Joliet, during January, snow falls for 9.9 days and regularly aggregates up to 3.58" (91mm) of snow. Throughout the year, there are 61.5 snowfall days, and 41.77" (1061mm) of snow is accumulated.Daylight
In Joliet, the average length of the day in January is 9h and 11min.On the first day of January, sunrise is at 7:55 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:20 pm MST.
Sunshine
The average sunshine in January in Joliet is 6.4h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: A maximum UV index of 2 in January translates into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Joliet, MT
- Average high temperature in January: 32°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (30.7°F).
- Average low temperature in January: 18.7°F
The months with the highest average low temperature are July and August (57.2°F).
The coldest month (with the lowest average low temperature) is February (16.7°F).
Average pressure in January
Joliet, MT
- Average pressure in January: 30.15"Hg
The months with the highest atmospheric pressure are January and December (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in January
Joliet, MT
- Average wind speed in January: 8.7mph
The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in January
Joliet, MT
- Average humidity in January: 76%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (41%).
Average rainfall in January
Joliet, MT
- Average rainfall in January: 0.51"
The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in January
Joliet, MT
- Average rainfall days in January: 6 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4 days).
Average snowfall in January
Joliet, MT
- Average snowfall in January: 3.58"
The month with the highest snowfall is February (6.81").
The months with the least snowfall are July and August (0").
Average snowfall days in January
Joliet, MT
- Average snowfall days in January: 9.9 days
The month with the highest number of snowfall days is February (10.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Joliet, MT
- Average daylight in January: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January: 6h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 12min).
Average sunshine days in January
Joliet, MT
- Average sunshine days in January: 19.3 days
The month with the most sunshine days is December (19.7 days).
The month with the least sunshine days is May (10.5 days).
Average UV index in January
Joliet, MT
- Average UV index in January: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in January
Joliet, MT
- Average cloud cover in January: 32
The month with the most cloud cover is February (Cloud cover 38).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in January
Joliet, 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).
