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
The onset of January brings with it an average high-temperature of a still subzero cold 26.6°F (-3°C), showing a negligible variation from the month before. An average nighttime temperature of 10.8°F (-11.8°C) is noted during the month of January.Humidity
January is the most humid month, with an average relative humidity of 84%.Rainfall
In Green River, in January, during 5.6 rainfall days, 0.67" (17mm) of precipitation is typically accumulated. In Green River, during the entire year, the rain falls for 93.5 days and collects up to 10.31" (262mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. In January, it is snowing for 13.3 days. Throughout January, 4.37" (111mm) of snow is accumulated. In Green River, during the entire year, snow falls for 75.5 days and aggregates up to 30.16" (766mm) of snow.Daylight
The average length of the day in January is 9h and 35min.On the first day of January, sunrise is at 7:44 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:31 pm MST.
Sunshine
The months with the least sunshine in Green River are January and December, with an average of 5.9h of 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 minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In January, a regular UV index of 2 translates into these guidelines:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is January in Green River?
What is the most humid month?
What is the average humidity in January?
How much does it rain in Green River in January?
How many days does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
What are the months with the least sunshine?
How many hours of sunshine does Green River have in January?
What is the month with the lowest UV index?
What is the UV index reading in January?
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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