Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
The average high-temperature exhibits a considerable decrease in October, dropping from a comfortable 65.7°F (18.7°C) in September to a chilly 49.6°F (9.8°C). Challis's nighttime temperature during October is consistently averaged at a subzero cold 30.2°F (-1°C).Humidity
In October, the average relative humidity is 60%.Rainfall
In Challis, in October, during 6.5 rainfall days, 0.55" (14mm) of precipitation is typically 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, during October, snow falls for 2.5 days and regularly aggregates up to 1.3" (33mm) of snow. In Challis, during the entire year, snow falls for 51.7 days and aggregates up to 18.62" (473mm) of snow.Daylight
In Challis, the average length of the day in October is 10h and 58min.On the first day of the month, sunrise is at 7:35 am and sunset at 7:16 pm. On the last day of October, sunrise is at 8:14 am and sunset at 6:26 pm MDT.
Sunshine
The average sunshine in October is 7.8h.UV index
The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 2 during October translates into the following directions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. To protect against the Sun's most potent rays, avoid direct exposure around midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Challis in October?
What is the average humidity in October?
How much does it rain in October?
How many days does it snow in October?
What is the average length of the day in October?
When is the sunrise / sunset in October?
How many hours of sunshine does Challis have in October?
When is the lowest UV index?
How high is the UV index in October?
Average temperature in October
Challis, ID
- Average high temperature in October: 49.6°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 October: 30.2°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 October
Challis, ID
- Average pressure in October: 30.06"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 October
Challis, ID
- Average wind speed in October: 5.1mph
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 October
Challis, ID
- Average humidity in October: 60%
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 October
Challis, ID
- Average rainfall in October: 0.55"
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 October
Challis, ID
- Average rainfall days in October: 6.5 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 October
Challis, ID
- Average snowfall in October: 1.3"
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 October
Challis, ID
- Average snowfall days in October: 2.5 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 October /
Average sunshine in October
Challis, ID
- Average daylight in October: 11h and 0min
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 October: 7h 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 October
Challis, ID
- Average sunshine days in October: 22.1 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 October
Challis, ID
- Average UV index in October: 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 October
Challis, ID
- Average cloud cover in October: 24
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 October
Challis, ID
- Average visibility in October: 6mi
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
Weather forecast for your location
2. Allow the app to use your location