January weather forecast
Challis, ID

Weather in January

January, like December, is a freezing cold winter month in Challis, Idaho, with an average temperature varying between 8.1°F (-13.3°C) and 28.4°F (-2°C).

Temperature

In Challis, the average high-temperature in January is almost the same as in December - a still subzero cold 28.4°F (-2°C). In Challis, Idaho, in January, the average low-temperature is 8.1°F (-13.3°C).

Humidity

In Challis, the average relative humidity in January is 86%.

Rainfall

In Challis, during 3.8 rainfall days, 0.47" (12mm) of precipitation is typically accumulated. In Challis, during the entire year, the rain falls for 75.7 days and collects up to 6.38" (162mm) of precipitation.

Snowfall

Months with snowfall are January through June, September through December. In Challis, during January, snow falls for 9 days and regularly aggregates up to 3.23" (82mm) of snow. Throughout the year, there are 51.7 snowfall days, and 18.62" (473mm) of snow is accumulated.

Daylight

In January, the average length of the day in Challis is 9h and 17min.
On the first day of January in Challis, sunrise is at 8:13 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 5:44 pm MST.

Sunshine

January has the least sunshine of the year, with an average of 5.8h of sunshine.

UV index

The months with the lowest UV index in Challis, Idaho, are January through April, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 2 in January interpret into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always 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.
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FAQ

What is the average humidity in January in Challis?

In January, the average relative humidity in Challis, Idaho, is 86%.

How much does it rain in Challis in January?

In January, the rain falls for 3.8 days. Throughout January, 0.47" (12mm) of precipitation is accumulated.

How many days does it snow in January in Challis?

In Challis, Idaho, during January, snow falls for 9 days and regularly aggregates up to 3.23" (82mm) of snow.

What is the average length of the day in January in Challis?

In Challis, Idaho, the average day length in January is 9h and 17min.

What time are sunrise and sunset in January in Challis?

On the first day of January in Challis, sunrise is at 8:13 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 5:44 pm MST.

What is the month with the least sunshine in Challis?

The month with the least sunshine in Challis, Idaho, is January, with an average of 5.8h of sunshine.

How many hours of sunshine does Challis have in January?

In January, the average sunshine duration in Challis is 5.8h.

What is the month with the lowest UV index in Challis?

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Challis.

What is the UV index intensity in January in Challis?

In January, the average daily maximum UV index in Challis, Idaho, is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Challis, ID

Average temperature in January - Challis, ID
  • Average high temperature in January: 28.4°F

The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is December (26.1°F).

  • Average low temperature in January: 8.1°F

The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is January (8.1°F).

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Average pressure in January
Challis, ID

Average pressure in January - Challis, ID
  • Average pressure in January: 30.27"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in January
Challis, ID

Average wind speed in January - Challis, ID
  • Average wind speed in January: 4.8mph

The windiest months (with the highest average wind speed) are June and July (5.7mph).
The calmest month (with the lowest average wind speed) is January (4.8mph).

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Average humidity in January
Challis, ID

Average humidity in January - Challis, ID
  • Average humidity in January: 86%

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are July and August (38%).

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Average rainfall in January
Challis, ID

Average rainfall in January - Challis, ID
  • Average rainfall in January: 0.47"

The wettest month (with the highest rainfall) is June (1.1").
The driest month (with the least rainfall) is July (0.28").

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Average rainfall days in January
Challis, ID

Average rainfall days in January - Challis, ID
  • Average rainfall days in January: 3.8 days

The month with the highest number of rainy days is June (10.2 days).
The month with the least rainy days is January (3.8 days).

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Average snowfall in January
Challis, ID

Average snowfall in January - Challis, ID
  • Average snowfall in January: 3.23"

The month with the highest snowfall is February (3.54").
The months with the least snowfall are July and August (0").

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Average snowfall days in January
Challis, ID

Average snowfall days in January - Challis, ID
  • Average snowfall days in January: 9 days

The month with the highest number of snowfall days is December (10.1 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in January / Average sunshine in January - Challis, ID
  • Average daylight in January: 9h and 17min

The month with the longest days is June (Average daylight: 15h and 29min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in January: 5h and 48min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 48min).

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Average sunshine days in January
Challis, ID

Average sunshine days in January - Challis, ID
  • Average sunshine days in January: 21.1 days

The month with the most sunshine days is July (24.1 days).
The months with the least sunshine days are March and April (17.2 days).

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Average UV index in January
Challis, ID

Average UV index in January - Challis, ID
  • Average UV index in January: 2

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

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Average cloud cover in January
Challis, ID

Average cloud cover in January - Challis, ID
  • Average cloud cover in January: 40

The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 11).

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Average visibility in January
Challis, ID

Average visibility in January - Challis, ID
  • Average visibility in January: 4mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).

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