January weather forecast
Three River Junction, WY

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Weather in January

January, like December, is a freezing cold winter month in Three River Junction, Wyoming, with an average temperature fluctuating between 5.4°F (-14.8°C) and 21°F (-6.1°C).

Temperature

The start of January marks an average high-temperature of a still freezing cold 21°F (-6.1°C), hardly distinguishable from the conditions in December. Three River Junction's nighttime temperature during January is consistently averaged at an extreme cold 5.4°F (-14.8°C).

Humidity

In January, the average relative humidity is 93%.

Rainfall

In Three River Junction, in January, it is raining for 2.2 days, with typically 2.17" (55mm) of accumulated precipitation. In Three River Junction, during the entire year, the rain falls for 94.6 days and collects up to 24.41" (620mm) of precipitation.

Snowfall

Months with snowfall are January through December. In Three River Junction, in January, snow falls for 22.8 days, with typically accumulated 16.57" (421mm) of snow. Throughout the year, there are 176.8 snowfall days, and 135.55" (3443mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 19min.
On the first day of January in Three River Junction, sunrise is at 7:59 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:31 pm MST.

Sunshine

The average sunshine in January is 3.4h.

UV index

January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: In January, a daily maximum UV index of 1 leads to the following instructions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Three River Junction in January?

In Three River Junction, 21°F (-6.1°C) is the average high-temperature and 5.4°F (-14.8°C) is the average low-temperature during January.

What is the average humidity in January?

In Three River Junction, Wyoming, the average relative humidity in January is 93%.

How much does it rain in January?

In January, the rain falls for 2.2 days. Throughout January, 2.17" (55mm) of precipitation is accumulated.

How much does it snow in January?

In Three River Junction, in January, snow falls for 22.8 days, with typically accumulated 16.57" (421mm) of snow.

What is the average length of the day in January?

In January, the average day length in Three River Junction is 9h and 19min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:59 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:31 pm MST.

How long on average sun shines in January?

The average sunshine duration in January is 3.4h.

What is the month with the lowest UV index?

January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index.

How high is the UV index in January?

In January, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Three River Junction, WY

Average temperature in January - Three River Junction, WY
  • Average high temperature in January: 21°F

The warmest month (with the highest average high temperature) is July (72.1°F).
The month with the lowest average high temperature is December (19.4°F).

  • Average low temperature in January: 5.4°F

The month with the highest average low temperature is July (43.7°F).
The coldest month (with the lowest average low temperature) is December (3.9°F).

Average pressure in January
Three River Junction, WY

Average pressure in January - Three River Junction, WY
  • Average pressure in January: 30.24"Hg

The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in January
Three River Junction, WY

Average wind speed in January - Three River Junction, WY
  • Average wind speed in January: 6.8mph

The windiest months (with the highest average wind speed) are February and June (7.4mph).
The calmest months (with the lowest average wind speed) are May and August (6.3mph).

Average humidity in January
Three River Junction, WY

Average humidity in January - Three River Junction, WY
  • Average humidity in January: 93%

The month with the highest relative humidity is February (94%).
The months with the lowest relative humidity are July and August (50%).

Average rainfall in January
Three River Junction, WY

Average rainfall in January - Three River Junction, WY
  • Average rainfall in January: 2.17"

The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is July (0.94").

Average rainfall days in January
Three River Junction, WY

Average rainfall days in January - Three River Junction, WY
  • Average rainfall days in January: 2.2 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (2.2 days).

Average snowfall in January
Three River Junction, WY

Average snowfall in January - Three River Junction, WY
  • Average snowfall in January: 16.57"

The month with the highest snowfall is April (19.69").
The months with the least snowfall are July and August (0.08").

Average snowfall days in January
Three River Junction, WY

Average snowfall days in January - Three River Junction, WY
  • Average snowfall days in January: 22.8 days

The month with the highest number of snowfall days is March (25.3 days).
The month with the least snowfall days is July (0.3 days).

Average daylight in January /
Average sunshine in January
Three River Junction, WY

Average daylight in January / Average sunshine in January - Three River Junction, WY
  • Average daylight in January: 9h and 2min

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: 3h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 3h and 18min).

Average sunshine days in January
Three River Junction, WY

Average sunshine days in January - Three River Junction, WY
  • Average sunshine days in January: 9 days

The month with the most sunshine days is September (16 days).
The month with the least sunshine days is April (4.5 days).

Average UV index in January
Three River Junction, WY

Average UV index in January - Three River Junction, WY
  • Average UV index in January: 1

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).

Average cloud cover in January
Three River Junction, WY

Average cloud cover in January - Three River Junction, WY
  • Average cloud cover in January: 69

The month with the most cloud cover is February (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 15).

Average visibility in January
Three River Junction, WY

Average visibility in January - Three River Junction, WY
  • Average visibility in January: 3mi

The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (3mi).

Three River Junction, Wyoming, USA

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