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
In January, Altamont experiences a minor shift in meteorological conditions with average high-temperatures marked at a still freezing cold 27.7°F (-2.4°C), closely mirroring the climate in December. January nights are marked by an average temperature drop to a frigid cold 10.8°F (-11.8°C).Humidity
January and February, with an average relative humidity of 87%, are the most humid months.Rainfall
In Altamont, during January, the rain falls for 6.5 days and regularly aggregates up to 0.94" (24mm) of precipitation. In Altamont, Wyoming, during the entire year, the rain falls for 94.2 days and collects up to 11.5" (292mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. In Altamont, in January, during 14.3 snowfall days, 7.36" (187mm) of snow is typically accumulated. Throughout the year, there are 99.3 snowfall days, and 56.22" (1428mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 37min.On the first day of the month, sunrise is at 7:48 am and sunset at 5:04 pm. On the last day of January, sunrise is at 7:35 am and sunset at 5:37 pm MST.
Sunshine
January has the least sunshine of the year, with an average of 5.8h of sunshine.UV index
In Altamont, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In January, the maximum UV index of 2 suggests these recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in January?
What are the most humid months?
What is the average humidity in January?
How many days does it rain in January?
How much does it snow in January?
What is the average length of the day in January?
When are sunrise and sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
What is the UV index reading in January?
Average temperature in January
Altamont, WY
- Average high temperature in January: 27.7°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is December (26.4°F).
- Average low temperature in January: 10.8°F
The month with the highest average low temperature is July (51.6°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in January
Altamont, WY
- Average pressure in January: 30.29"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in January
Altamont, WY
- Average wind speed in January: 7mph
The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in January
Altamont, WY
- Average humidity in January: 87%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is August (39%).
Average rainfall in January
Altamont, WY
- Average rainfall in January: 0.94"
The wettest months (with the highest rainfall) are April and May (1.38").
The driest month (with the least rainfall) is August (0.51").
Average rainfall days in January
Altamont, WY
- Average rainfall days in January: 6.5 days
The month with the highest number of rainy days is May (11.9 days).
The month with the least rainy days is February (5.5 days).
Average snowfall in January
Altamont, WY
- Average snowfall in January: 7.36"
The month with the highest snowfall is March (10").
The months with the least snowfall are July and August (0").
Average snowfall days in January
Altamont, WY
- Average snowfall days in January: 14.3 days
The month with the highest number of snowfall days is February (16.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Altamont, WY
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 5h and 5min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 48min).
Average sunshine days in January
Altamont, WY
- Average sunshine days in January: 16.3 days
The month with the most sunshine days is June (19.5 days).
The month with the least sunshine days is April (10.8 days).
Average UV index in January
Altamont, WY
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in January
Altamont, WY
- Average cloud cover in January: 40
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 10).
Average visibility in January
Altamont, WY
- Average visibility in January: 4mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Altamont, Wyoming, USA
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