August weather forecast
Challis, ID

Weather in August

The last month of the summer, August, is another warm month in Challis, Idaho, with an average temperature fluctuating between 75.4°F (24.1°C) and 47.8°F (8.8°C).

Temperature

In Challis, the average high-temperature in August is relatively the same as in July - a still warm 75.4°F (24.1°C). In Challis, the average low-temperature is 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 August, in Challis, Idaho, the rain falls for 4.8 days. Throughout August, 0.31" (8mm) of precipitation is accumulated. In Challis, during the entire year, the rain falls for 75.7 days and collects up to 6.38" (162mm) of precipitation.

Snowfall

July and August are months without snowfall in Challis.

Daylight

In Challis, Idaho, 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 9:02 pm. On the last day of August, in Challis, sunrise is at 6:58 am and sunset at 8:15 pm MDT.

Sunshine

In Challis, the average sunshine in August is 11.8h.

UV index

The average daily maximum UV index in August is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 4 in August transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the least humid month in Challis?

July and August, with an average relative humidity of 38%, are the least humid months.

What is the average humidity in August in Challis?

In August, the average relative humidity in Challis, Idaho, is 38%.

How many days does it rain in August in Challis?

In August, in Challis, Idaho, the rain falls for 4.8 days. Throughout August, 0.31" (8mm) of precipitation is accumulated.

When it does not snow in Challis?

July and August are months without snowfall.

Does it snow in Challis in August?

In Challis, in August, it doesn't snow. In September, it regularly snows.

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

In Challis, Idaho, the average day length in August is 13h and 59min.

What time are sunrise and sunset in August in Challis?

On the first day of August, sunrise is at 6:24 am and sunset at 9:02 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 8:15 pm MDT.

How long on average sun shines in August in Challis?

The average sunshine duration in August in Challis, Idaho, is 11.8h.

What is the UV index reading in August in Challis?

In Challis, the average daily maximum UV index in August is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Challis, ID

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).

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Average pressure in August
Challis, ID

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).

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Average wind speed in August
Challis, ID

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).

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Average humidity in August
Challis, ID

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%).

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Average rainfall in August
Challis, ID

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").

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Average rainfall days in August
Challis, ID

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).

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Average snowfall in August
Challis, ID

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").

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Average snowfall days in August
Challis, ID

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).

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

Average daylight in August / Average sunshine in August - Challis, ID
  • Average daylight in August: 13h and 59min

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 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).

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Average sunshine days in August
Challis, ID

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).

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Average UV index in August
Challis, ID

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).

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Average cloud cover in August
Challis, ID

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).

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Average visibility in August
Challis, ID

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).

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