January weather forecastBanner, WY
January
Weather in January
January, like December, is a freezing cold winter month in Banner, Wyoming, with temperature in the range of an average low of 15.6°F (-9.1°C) and an average high of 30.4°F (-0.9°C).Temperature
January records an average high-temperature of a still subzero cold 30.4°F (-0.9°C), indicating a minor variation from the preceding month. January generally records an average low-temperature of 15.6°F (-9.1°C).Humidity
The average relative humidity in January is 77%.Rainfall
In January, the rain falls for 9 days. Throughout January, 0.94" (24mm) of precipitation is accumulated. Throughout the year, there are 165.2 rainfall days, and 21.22" (539mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In Banner, in January, during 13.2 snowfall days, 5.75" (146mm) of snow is typically accumulated. In Banner, during the entire year, snow falls for 78.9 days and aggregates up to 46.3" (1176mm) of snow.Daylight
The average length of the day in January in Banner is 9h and 17min.On the first day of January, sunrise is at 7:44 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:14 pm MST.
Sunshine
In Banner, the average sunshine in January is 6.3h.UV index
January through April, October through 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 ordinary individuals.Note: In January, the maximum UV index of 2 translates into these guidelines:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Banner, WY
- Average high temperature in January: 30.4°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is February (29.1°F).
- Average low temperature in January: 15.6°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).
Average pressure in January
Banner, WY
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in January
Banner, WY
- Average wind speed in January: 7mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in January
Banner, WY
- Average humidity in January: 77%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (46%).
Average rainfall in January
Banner, WY
- Average rainfall in January: 0.94"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is December (0.75").
Average rainfall days in January
Banner, WY
- Average rainfall days in January: 9 days
The month with the highest number of rainy days is May (22.3 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in January
Banner, WY
- Average snowfall in January: 5.75"
The month with the highest snowfall is April (8.7").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Banner, WY
- Average snowfall days in January: 13.2 days
The month with the highest number of snowfall days is February (15.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in January /
Average sunshine in January
Banner, WY
- Average daylight in January: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January: 6h and 18min
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 6min).
Average sunshine days in January
Banner, WY
- Average sunshine days in January: 13.6 days
The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is May (5.8 days).
Average UV index in January
Banner, WY
- 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, April, October, November and December (UV index 2).
Average cloud cover in January
Banner, WY
- Average cloud cover in January: 33
The months with the most cloud cover are February and April (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in January
Banner, WY
- 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).





