August weather forecastChallis, ID
August
Weather in August
August in Challis continues the summer spell with no significant changes in temperature or weather patterns from July. The average high temperature remains consistent at 75.4°F (24.1°C). Though the rainfall quantity is minimal, it occurs more frequently than in the previous month. The month also enjoys plenty of daylight hours and sunshine. This month's largely similar conditions to July make it another excellent period for outdoor activities.Temperature
Challis, Idaho, observes an average high-temperature of a still warm 75.4°F (24.1°C) in August, barely different from 76.6°F (24.8°C) in July. Nighttime in August brings a stark departure from the daily high, resting at an average low-temperature of 47.8°F (8.8°C).Humidity
The months with the lowest humidity are July and August, with an average relative humidity of 38%.Rainfall
In Challis, during August, the rain falls for 4.8 days and regularly aggregates up to 0.31" (8mm) of precipitation. Throughout the year, there are 75.7 rainfall days, and 6.38" (162mm) of precipitation is accumulated.Snowfall
July and August are months without snowfall.Daylight
The average length of the day in August is 13h and 59min.On the first day of August, sunrise is at 6:24 am and sunset at 9:01 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 8:14 pm MDT.
Sunshine
In Challis, Idaho, the average sunshine in August is 11.8h.UV index
In August, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 4 during August translates into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Challis, ID
- Average high temperature in August: 75.4°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 August: 47.8°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 August
Challis, ID
- Average pressure in August: 29.95"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 August
Challis, ID
- Average wind speed in August: 5.2mph
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 August
Challis, ID
- Average humidity in August: 38%
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 August
Challis, ID
- Average rainfall in August: 0.31"
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 August
Challis, ID
- Average rainfall days in August: 4.8 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 August
Challis, ID
- Average snowfall in August: 0"
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 August
Challis, ID
- Average snowfall days in August: 0 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 August /
Average sunshine in August
Challis, ID
- Average daylight in August: 14h 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 August: 11h 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).
Average sunshine days in August
Challis, ID
- Average sunshine days in August: 23.4 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 August
Challis, ID
- Average UV index in August: 4
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 August
Challis, ID
- Average cloud cover in August: 12
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 August
Challis, ID
- Average visibility in August: 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).
