January weather forecastBig Horn, WY
January
Weather in January
January, like December, is a freezing cold winter month in Big Horn, Wyoming, with an average temperature fluctuating between 30.4°F (-0.9°C) and 15.6°F (-9.1°C).Temperature
As December turns into January, the average high-temperatures rest at a still freezing cold 30.4°F (-0.9°C), showing a minor variation from the prior month. Big Horn encounters a steady low-temperature average of 15.6°F (-9.1°C) throughout the month of January.Humidity
In Big Horn, the average relative humidity in January is 77%.Rainfall
In January, in Big Horn, the rain falls for 9 days. Throughout January, 0.94" (24mm) of precipitation is accumulated. Throughout the year, in Big Horn, Wyoming, there are 165.2 rainfall days, and 21.22" (539mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. In Big Horn, in January, during 13.2 snowfall days, 5.75" (146mm) of snow is typically accumulated. Throughout the year, in Big Horn, there are 78.9 snowfall days, and 46.3" (1176mm) of snow is accumulated.Daylight
In January, the average length of the day in Big Horn is 9h and 17min.On the first day of the month, sunrise is at 7:44 am and sunset at 4:37 pm. On the last day of January, sunrise is at 7:28 am and sunset at 5:14 pm MST.
Sunshine
In Big Horn, 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 in Big Horn. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: A typical high UV index of 2 in January suggests the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Big Horn, 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
Big Horn, 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
Big Horn, 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
Big Horn, 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
Big Horn, 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
Big Horn, 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
Big Horn, 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
Big Horn, 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
Big Horn, 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
Big Horn, 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
Big Horn, 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
Big Horn, 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
Big Horn, 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).





