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 transition into January in Riverton reveals an average high-temperature of a still subzero cold 31.5°F (-0.3°C), mirroring a close resemblance to December. Throughout the January nights, Riverton encounters a low-temperature of 14.5°F (-9.7°C).Humidity
With an average relative humidity of 77%, January is the most humid month in Riverton.Rainfall
The month with the least rainfall in Riverton, Wyoming, is January, when the rain falls for 2.5 days and typically collects 0.24" (6mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Riverton, Wyoming, in January, snow falls for 5.6 days, with typically accumulated 1.69" (43mm) of snow. In Riverton, during the entire year, snow falls for 42.8 days and aggregates up to 25.47" (647mm) of snow.Daylight
In Riverton, the average length of the day in January is 9h and 26min.On the first day of the month, sunrise is at 7:44 am and sunset at 4:49 pm. On the last day of January, in Riverton, sunrise is at 7:29 am and sunset at 5:24 pm MST.
Sunshine
With an average of 6.6h of sunshine, January has the least sunshine of the year in Riverton, Wyoming.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 2 during January translates into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
How cold is it in Riverton in January?
What is the most humid month in Riverton?
What is the average humidity in January in Riverton?
What is the driest month in Riverton?
How many days does it rain in January in Riverton?
How many days does it snow in January in Riverton?
How many hours of daylight does Riverton have in January?
When is the sunrise / sunset in January in Riverton?
What is the month with the least sunshine in Riverton?
How many hours of sunshine does Riverton have in January?
What is the month with the lowest UV index in Riverton?
What is the UV index reading in January in Riverton?
Average temperature in January
Riverton, WY
- Average high temperature in January: 31.5°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is December (30.9°F).
- Average low temperature in January: 14.5°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure in January
Riverton, WY
- Average pressure in January: 30.22"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in January
Riverton, WY
- Average wind speed in January: 5.5mph
The windiest month (with the highest average wind speed) is June (7.5mph).
The calmest month (with the lowest average wind speed) is January (5.5mph).
Average humidity in January
Riverton, WY
- Average humidity in January: 77%
The month with the highest relative humidity is January (77%).
The months with the lowest relative humidity are July and August (31%).
Average rainfall in January
Riverton, WY
- Average rainfall in January: 0.24"
The wettest month (with the highest rainfall) is May (1.42").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in January
Riverton, WY
- Average rainfall days in January: 2.5 days
The month with the highest number of rainy days is May (9.9 days).
The month with the least rainy days is January (2.5 days).
Average snowfall in January
Riverton, WY
- Average snowfall in January: 1.69"
The month with the highest snowfall is April (5.39").
The months with the least snowfall are June, July and August (0").
Average snowfall days in January
Riverton, WY
- Average snowfall days in January: 5.6 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in January /
Average sunshine in January
Riverton, WY
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 6h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 36min).
Average sunshine days in January
Riverton, WY
- Average sunshine days in January: 24.5 days
The month with the most sunshine days is January (24.5 days).
The month with the least sunshine days is April (15.5 days).
Average UV index in January
Riverton, WY
- Average UV index in January: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Riverton, WY
- Average cloud cover in January: 25
The months with the most cloud cover are February and April (Cloud cover 28).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in January
Riverton, 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).
Riverton, Wyoming, USA
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