Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
The advent of August in Challis observes an average high-temperature of a still warm 75.4°F (24.1°C), nearly identical to July's 76.6°F (24.8°C). Challis's August nights bring a significant temperature shift, averaging at a chilly 47.8°F (8.8°C).Humidity
July and August, with an average relative humidity of 38%, are the least humid months in Challis.Rainfall
In Challis, in August, it is raining for 4.8 days, with typically 0.31" (8mm) of accumulated 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 in Challis.Daylight
In Challis, the average length of the day in August is 13h and 59min.On the first day of the month, sunrise is at 6:24 am and sunset at 9:01 pm. On the last day of August, in Challis, Idaho, sunrise is at 6:59 am and sunset at 8:14 pm MDT.
Sunshine
In Challis, the average sunshine in August is 11.8h.UV index
In August, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The daily maximum UV index of 4 in August interprets into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Frequently asked questions
What are the temperatures in Challis in August?
What are the least humid months in Challis?
What is the average humidity in August in Challis?
How many days does it rain in August in Challis?
When it does not snow in Challis?
Does it snow in Challis in August?
How many hours of daylight does Challis have in August?
When is the sunrise / sunset in August in Challis?
How long on average sun shines in August in Challis?
What is the UV index reading in August in Challis?
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 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 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).
Challis, Idaho, USA
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