Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
The onset of January in Challis, Idaho, notes an average high-temperature of a still subzero cold 28.4°F (-2°C), subtly shifted from December's 26.1°F (-3.3°C). During January, the nighttime temperature in Challis averages of 8.1°F (-13.3°C).Humidity
The average relative humidity in January is 86%.Rainfall
In January, the rain falls for 3.8 days. Throughout January, 0.47" (12mm) of precipitation is accumulated. Throughout the year, there are 75.7 rainfall days, and 6.38" (162mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall in Challis. In Challis, Idaho, in January, snow falls for 9 days, with typically accumulated 3.23" (82mm) of snow. Throughout the year, in Challis, there are 51.7 snowfall days, and 18.62" (473mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 17min.On the first day of the month, sunrise is at 8:13 am and sunset at 5:07 pm. On the last day of January, sunrise is at 7:56 am and sunset at 5:44 pm MST.
Sunshine
With an average of 5.8h of sunshine, January has the least sunshine of the year.UV index
The months with the lowest UV index in Challis are January through April, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In January, the UV index of 2 transforms into the following advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
How cold is it in Challis in January?
What is the average humidity in January in Challis?
How much does it rain in Challis in January?
How much does it snow in Challis in January?
What is the average length of the day in January in Challis?
When is the sunrise / sunset in January in Challis?
What is the month with the least sunshine in Challis?
How long on average sun shines in January in Challis?
When is the lowest UV index in Challis?
What is the UV index reading in January in Challis?
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in January /
Average sunshine in January
Challis, ID
- 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: 5h 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: 5h and 48min).
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).
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).
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).
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).
Challis, Idaho, USA
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