January weather forecast
Idaho Falls, ID

An eye-catching shot of the Snake River, Idaho Falls, with a view of the iconic Idaho Falls Temple in the back
An eye-catching shot of the Snake River, Idaho Falls, with a view of the iconic Idaho Falls Temple in the back

Weather in January

January, the same as December, in Idaho Falls, Idaho, is a freezing cold winter month, with an average temperature ranging between min 14.2°F (-9.9°C) and max 28°F (-2.2°C).

Temperature

In Idaho Falls, the average high-temperature in January is almost the same as in December - a still subzero cold 28°F (-2.2°C). In January, in Idaho Falls, the average low-temperature is 14.2°F (-9.9°C).

Humidity

January is the most humid month in Idaho Falls, Idaho, with an average relative humidity of 90%.

Rainfall

In Idaho Falls, during 3.7 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. Throughout the year, there are 84.3 rainfall days, and 6.97" (177mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Idaho Falls, Idaho, are January through May, September through December. The month with the most snowfall in Idaho Falls is January, when snow falls for 12.8 days and typically aggregates up to 3.86" (98mm) of snow.

Daylight

In January, the average length of the day is 9h and 24min.
On the first day of the month, sunrise is at 8:01 am and sunset at 5:02 pm. On the last day of January, in Idaho Falls, sunrise is at 7:44 am and sunset at 5:38 pm MST.

Sunshine

With an average of 4.7h of sunshine, January has the least sunshine of the year.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 2 in January interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
[Resources]

FAQ

What is the temperature in January in Idaho Falls?

In January, the average high-temperature is 28°F (-2.2°C), and the average low-temperature is 14.2°F (-9.9°C).

What is the most humid month in Idaho Falls?

With an average relative humidity of 90%, January is the most humid month.

What is the average humidity in January in Idaho Falls?

The average relative humidity in January in Idaho Falls is 90%.

How many days does it rain in January in Idaho Falls?

In Idaho Falls, in January, during 3.7 rainfall days, 0.51" (13mm) of precipitation is typically accumulated.

What is the snowiest month in Idaho Falls?

January is the month with the most snowfall in Idaho Falls, Idaho. Snow falls for 12.8 days and accumulates 3.86" (98mm) of snow.

How much does it snow in Idaho Falls in January?

In Idaho Falls, Idaho, during January, snow falls for 12.8 days and regularly aggregates up to 3.86" (98mm) of snow.

How many hours of daylight does Idaho Falls have in January?

In Idaho Falls, the average day length in January is 9h and 24min.

What time are sunrise and sunset in January in Idaho Falls?

In January, on the first day of the month, sunrise is at 8:01 am and sunset at 5:02 pm. On the last day of the month, in Idaho Falls, sunrise is at 7:44 am and sunset at 5:38 pm MST.

What is the month with the least sunshine in Idaho Falls?

The month with the least sunshine in Idaho Falls, Idaho, is January, with an average of 4.7h of sunshine.

How long on average sun shines in January in Idaho Falls?

In January, the average sunshine duration in Idaho Falls is 4.7h.

What is the month with the lowest UV index in Idaho Falls?

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Idaho Falls.

What is the UV index intensity in January in Idaho Falls?

In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk from 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
Idaho Falls, ID

Average temperature in January - Idaho Falls, ID
  • Average high temperature in January: 28°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is December (27.9°F).

  • Average low temperature in January: 14.2°F

The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is January (14.2°F).

[Resources]

Average pressure in January
Idaho Falls, ID

Average pressure in January - Idaho Falls, ID
  • Average pressure in January: 30.3"Hg

The month with the highest atmospheric pressure is January (30.3"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

[Resources]

Average wind speed in January
Idaho Falls, ID

Average wind speed in January - Idaho Falls, ID
  • Average wind speed in January: 5.8mph

The windiest month (with the highest average wind speed) is April (9mph).
The calmest month (with the lowest average wind speed) is January (5.8mph).

[Resources]

Average humidity in January
Idaho Falls, ID

Average humidity in January - Idaho Falls, ID
  • Average humidity in January: 90%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (35%).

[Resources]

Average rainfall in January
Idaho Falls, ID

Average rainfall in January - Idaho Falls, ID
  • Average rainfall in January: 0.51"

The wettest months (with the highest rainfall) are May and September (0.83").
The driest month (with the least rainfall) is July (0.35").

[Resources]

Average rainfall days in January
Idaho Falls, ID

Average rainfall days in January - Idaho Falls, ID
  • Average rainfall days in January: 3.7 days

The month with the highest number of rainy days is May (10.7 days).
The month with the least rainy days is January (3.7 days).

[Resources]

Average snowfall in January
Idaho Falls, ID

Average snowfall in January - Idaho Falls, ID
  • Average snowfall in January: 3.86"

The month with the highest snowfall is January (3.86").
The months with the least snowfall are June, July and August (0").

[Resources]

Average snowfall days in January
Idaho Falls, ID

Average snowfall days in January - Idaho Falls, ID
  • Average snowfall days in January: 12.8 days

The month with the highest number of snowfall days is December (12.9 days).
The months with the least snowfall days are June, July and August (0 days).

[Resources]

Average daylight in January /
Average sunshine in January
Idaho Falls, ID

Average daylight in January / Average sunshine in January - Idaho Falls, ID
  • Average daylight in January: 9h and 24min

The month with the longest days is June (Average daylight: 15h and 22min).
The month with the shortest days is December (Average daylight: 9h and 1min).

  • Average sunshine in January: 4h and 42min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

[Resources]

Average sunshine days in January
Idaho Falls, ID

Average sunshine days in January - Idaho Falls, ID
  • Average sunshine days in January: 18.4 days

The month with the most sunshine days is October (22.1 days).
The month with the least sunshine days is February (16.2 days).

[Resources]

Average UV index in January
Idaho Falls, ID

Average UV index in January - Idaho Falls, ID
  • 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, October, November and December (UV index 2).

[Resources]

Average cloud cover in January
Idaho Falls, ID

Average cloud cover in January - Idaho Falls, ID
  • Average cloud cover in January: 51

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 11).

[Resources]

Average visibility in January
Idaho Falls, ID

Average visibility in January - Idaho Falls, ID
  • Average visibility in January: 4mi

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 and February (4mi).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location