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
Upon the beginning of January, Green River's high-temperatures register at a still freezing cold 26.6°F (-3°C), closely mirroring the preceding month. In Green River, in January, the average low-temperature is an extreme cold 10.8°F (-11.8°C).Humidity
The most humid month is January, with an average relative humidity of 84%.Rainfall
In Green River, Wyoming, during January, the rain falls for 5.6 days and regularly aggregates up to 0.67" (17mm) of precipitation. Throughout the year, in Green River, there are 93.5 rainfall days, and 10.31" (262mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. In Green River, in January, snow falls for 13.3 days, with typically accumulated 4.37" (111mm) of snow. In Green River, during the entire year, snow falls for 75.5 days and aggregates up to 30.16" (766mm) of snow.Daylight
In Green River, the average length of the day in January is 9h and 35min.On the first day of the month, sunrise is at 7:44 am and sunset at 4:58 pm. On the last day of January, sunrise is at 7:30 am and sunset at 5:31 pm MST.
Sunshine
January and December, with an average of 5.9h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index, 2 in January, converts into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Avoiding the Sun during its peak radiation time around midday is a healthy practice. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Frequently asked questions
How cold is January in Green River?
What is the most humid month in Green River?
What is the average humidity in January in Green River?
How many days does it rain in January in Green River?
How many days does it snow in January in Green River?
What is the average length of the day in January in Green River?
When are sunrise and sunset in January in Green River?
What are the months with the least sunshine in Green River?
How many hours of sunshine does Green River have in January?
When is the lowest UV index in Green River?
How high is the UV index in January in Green River?
Average temperature in January
Green River, WY
- Average high temperature in January: 26.6°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in January: 10.8°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in January
Green River, WY
- Average pressure in January: 30.28"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in January
Green River, WY
- Average wind speed in January: 9.4mph
The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in January
Green River, WY
- Average humidity in January: 84%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are July and August (31%).
Average rainfall in January
Green River, WY
- Average rainfall in January: 0.67"
The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days in January
Green River, WY
- Average rainfall days in January: 5.6 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is December (4.7 days).
Average snowfall in January
Green River, WY
- Average snowfall in January: 4.37"
The month with the highest snowfall is March (6.14").
The months with the least snowfall are July and August (0").
Average snowfall days in January
Green River, WY
- Average snowfall days in January: 13.3 days
The month with the highest number of snowfall days is December (13.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Green River, 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 12min).
- Average sunshine in January: 5h and 5min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 54min).
Average sunshine days in January
Green River, WY
- Average sunshine days in January: 16.8 days
The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is April (11.5 days).
Average UV index in January
Green River, 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
Green River, WY
- Average cloud cover in January: 41
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in January
Green River, WY
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
Green River, Wyoming, USA
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