January weather forecast
Basalt, ID

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Weather in January

January, like December, is another subzero cold winter month in Basalt, Idaho, with an average temperature ranging between max 28°F (-2.2°C) and min 14.7°F (-9.6°C).

Temperature

The advent of January sees the average high-temperature at a still freezing cold 28°F (-2.2°C), subtly shifted from December's 27.9°F (-2.3°C). Basalt's temperature in January lowers to a consistent average of 14.7°F (-9.6°C) during the nights.

Humidity

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

Rainfall

In Basalt, during January, the rain falls for 6.1 days and regularly aggregates up to 1.06" (27mm) of precipitation. Throughout the year, there are 124.6 rainfall days, and 12.24" (311mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. The month with the most snowfall in Basalt is January, when snow falls for 16.3 days and typically aggregates up to 7.44" (189mm) of snow.

Daylight

The average length of the day in January is 9h and 25min.
On the first day of the month, sunrise is at 8:00 am and sunset at 5:03 pm. On the last day of January, in Basalt, sunrise is at 7:45 am and sunset at 5:38 pm MST.

Sunshine

The month with the least sunshine is January, with an average of 4.8h of sunshine.

UV index

The months with the lowest UV index in Basalt are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.
Note: In January, the maximum UV index of 1 suggests this advice:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Stay sun-safe with clothing that is both closely woven and worn loosely. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is January in Basalt?

The average high-temperature, in January, in Basalt, is 28°F (-2.2°C), while the average low-temperature is 14.7°F (-9.6°C).

What is the most humid month in Basalt?

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

What is the average humidity in January in Basalt?

The average relative humidity in January is 90%.

How much does it rain in Basalt in January?

In Basalt, in January, during 6.1 rainfall days, 1.06" (27mm) of precipitation is typically accumulated.

What is the snowiest month in Basalt?

January is the month with the most snowfall. Snow falls for 16.3 days and accumulates 7.44" (189mm) of snow.

How many days does it snow in January in Basalt?

In Basalt, in January, snow falls for 16.3 days, with typically accumulated 7.44" (189mm) of snow.

How many hours of daylight does Basalt have in January?

The average day length in January in Basalt is 9h and 25min.

When are sunrise and sunset in January in Basalt?

In January, on the first day of the month, sunrise is at 8:00 am and sunset at 5:03 pm. On the last day of the month, in Basalt, sunrise is at 7:45 am and sunset at 5:38 pm MST.

What is the month with the least sunshine in Basalt?

The month with the least sunshine is January, with an average of 4.8h of sunshine.

How long on average sun shines in January in Basalt?

In Basalt, the average sunshine duration in January is 4.8h.

When is the lowest UV index in Basalt?

January and 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 Basalt?

In January, the average daily maximum UV index in Basalt is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Basalt, ID

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

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (27.9°F).

  • Average low temperature in January: 14.7°F

The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).

Average pressure in January
Basalt, ID

Average pressure in January - Basalt, 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).

Average wind speed in January
Basalt, ID

Average wind speed in January - Basalt, ID
  • Average wind speed in January: 6mph

The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest month (with the lowest average wind speed) is January (6mph).

Average humidity in January
Basalt, ID

Average humidity in January - Basalt, ID
  • Average humidity in January: 90%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are July and August (36%).

Average rainfall in January
Basalt, ID

Average rainfall in January - Basalt, ID
  • Average rainfall in January: 1.06"

The wettest month (with the highest rainfall) is May (1.57").
The driest month (with the least rainfall) is July (0.51").

Average rainfall days in January
Basalt, ID

Average rainfall days in January - Basalt, ID
  • Average rainfall days in January: 6.1 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (6.1 days).

Average snowfall in January
Basalt, ID

Average snowfall in January - Basalt, ID
  • Average snowfall in January: 7.44"

The month with the highest snowfall is January (7.44").
The months with the least snowfall are June, July and August (0").

Average snowfall days in January
Basalt, ID

Average snowfall days in January - Basalt, ID
  • Average snowfall days in January: 16.3 days

The month with the highest number of snowfall days is December (16.7 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in January / Average sunshine in January - Basalt, ID
  • 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 0min).

  • Average sunshine in January: 4h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).

Average sunshine days in January
Basalt, ID

Average sunshine days in January - Basalt, ID
  • Average sunshine days in January: 14.6 days

The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is March (10 days).

Average UV index in January
Basalt, ID

Average UV index in January - Basalt, 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 and December (UV index 1).

Average cloud cover in January
Basalt, ID

Average cloud cover in January - Basalt, ID
  • Average cloud cover in January: 50

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

Average visibility in January
Basalt, ID

Average visibility in January - Basalt, 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).

Basalt, Idaho, USA

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