January weather forecast
Teton, ID

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Weather in January

January, like December, is a freezing cold winter month in Teton, Idaho, with temperature in the range of an average high of 27.1°F (-2.7°C) and an average low of 12.4°F (-10.9°C).

Temperature

January's onset records a minor alteration in the average high-temperature to a still freezing cold 27.1°F (-2.7°C) from December's 26.2°F (-3.2°C). Teton's temperature in January lowers to a consistent average of 12.4°F (-10.9°C) during the nights.

Humidity

January is the most humid month, with an average relative humidity of 91%.

Rainfall

January is the month with the most rainfall in Teton. Rain falls for 5.4 days and accumulates 1.5" (38mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. January is the month with the most snowfall. Snow falls for 18.1 days and accumulates 11.97" (304mm) of snow.

Daylight

The average length of the day in January is 9h and 22min.
On the first day of January, sunrise is at 8:00 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:35 pm MST.

Sunshine

With an average of 4.3h of sunshine, January has the least sunshine of the year.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 1 in January converts into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in January?

In Teton, in January, the average high-temperature is 27.1°F (-2.7°C), and the average low-temperature is 12.4°F (-10.9°C).

What is the most humid month?

With an average relative humidity of 91%, January is the most humid month.

What is the average humidity in January?

In Teton, the average relative humidity in January is 91%.

What is the wettest month in Teton?

January is the month with the most rainfall in Teton. Rain falls for 5.4 days and accumulates 1.5" (38mm) of precipitation.

How many days does it rain in January?

In Teton, Idaho, in January, it is raining for 5.4 days, with typically 1.5" (38mm) of accumulated precipitation.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 18.1 days and accumulates 11.97" (304mm) of snow.

How many days does it snow in January?

In Teton, in January, snow falls for 18.1 days, with typically accumulated 11.97" (304mm) of snow.

How many hours of daylight does Teton have in January?

In January, the average day length is 9h and 22min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 8:00 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:35 pm MST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 4.3h of sunshine.

How long on average sun shines in January?

In Teton, the average sunshine duration in January is 4.3h.

What is the month with the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1.

What is the UV index intensity in January?

In Teton, the average daily maximum UV index in January is 1. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to UV radiation.
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
Teton, ID

Average temperature in January - Teton, ID
  • Average high temperature in January: 27.1°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is December (26.2°F).

  • Average low temperature in January: 12.4°F

The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).

Average pressure in January
Teton, ID

Average pressure in January - Teton, ID
  • 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 (29.92"Hg).

Average wind speed in January
Teton, ID

Average wind speed in January - Teton, ID
  • Average wind speed in January: 4.2mph

The windiest month (with the highest average wind speed) is June (6.9mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).

Average humidity in January
Teton, ID

Average humidity in January - Teton, ID
  • Average humidity in January: 91%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (39%).

Average rainfall in January
Teton, ID

Average rainfall in January - Teton, ID
  • Average rainfall in January: 1.5"

The wettest month (with the highest rainfall) is January (1.5").
The driest month (with the least rainfall) is July (0.28").

Average rainfall days in January
Teton, ID

Average rainfall days in January - Teton, ID
  • Average rainfall days in January: 5.4 days

The month with the highest number of rainy days is April (13 days).
The month with the least rainy days is July (5 days).

Average snowfall in January
Teton, ID

Average snowfall in January - Teton, ID
  • Average snowfall in January: 11.97"

The month with the highest snowfall is January (11.97").
The months with the least snowfall are June, July and August (0").

Average snowfall days in January
Teton, ID

Average snowfall days in January - Teton, ID
  • Average snowfall days in January: 18.1 days

The month with the highest number of snowfall days is January (18.1 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in January /
Average sunshine in January
Teton, ID

Average daylight in January / Average sunshine in January - Teton, ID
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in January: 4h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in January
Teton, ID

Average sunshine days in January - Teton, ID
  • Average sunshine days in January: 12.8 days

The month with the most sunshine days is July (24.8 days).
The month with the least sunshine days is February (10.6 days).

Average UV index in January
Teton, ID

Average UV index in January - Teton, ID
  • Average UV index in January: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in January
Teton, ID

Average cloud cover in January - Teton, ID
  • Average cloud cover in January: 55

The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 11).

Average visibility in January
Teton, ID

Average visibility in January - Teton, ID
  • Average visibility in January: 3mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (3mi).

Teton, Idaho, USA

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