August weather forecast
Riggins, ID

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The scenic Snake River between large mountains, with pitched tents and visible footpaths in the mountains near Riggins, Idaho
The scenic Snake River between large mountains, with pitched tents and visible footpaths in the mountains near Riggins, Idaho

Weather in August

As the dog days persist in August, Riggins, Idaho continues to experience hot and dry conditions. Compared to the climate in July, August sustains the high temperatures while slightly increasing rainfall. As September arrives, there is mild cooling, reflecting the beginnings of the autumn season. A particularly striking factor in August, similar to July, is the minimal rainfall, with a mere 0.55" (14mm) on average. The August weather carries the sustained warmth and aridity of the summer season through to September.

Temperature

July and August bring Riggins's highest average temperatures, reaching a high of 75.7°F (24.3°C).

Humidity

August is the least humid month, with an average relative humidity of 48%.

Rainfall

In Riggins, in August, it is raining for 5.8 days, with typically 0.55" (14mm) of accumulated precipitation. In Riggins, during the entire year, the rain falls for 81 days and collects up to 32.68" (830mm) of precipitation.

Snowfall

Months with snowfall in Riggins are January through December. The month with the least snowfall is August, when snow falls for 0.3 days and typically aggregates up to 0.08" (2mm) of snow.

Daylight

The average length of the day in August is 14h and 2min.
On the first day of August, sunrise is at 5:30 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 7:24 pm PDT.

Sunshine

In Riggins, the average sunshine in August is 11.2h.

UV index

In Riggins, the average daily maximum UV index in August is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In August, an average UV index of 4 transforms into the following instructions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
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Frequently asked questions

What month is the hottest in Riggins?

July and August are characterised by peak temperatures, with an average high of 75.7°F (24.3°C).

What is the temperature in August in Riggins?

In August, in Riggins, the average high-temperature is 75.7°F (24.3°C), and the average low-temperature is 45.7°F (7.6°C).

What is the least humid month in Riggins?

With an average relative humidity of 48%, August is the least humid month.

What is the average humidity in August in Riggins?

In August, the average relative humidity in Riggins is 48%.

How much does it rain in Riggins in August?

In Riggins, during August, the rain falls for 5.8 days and regularly aggregates up to 0.55" (14mm) of precipitation.

When it does not snow in Riggins?

The month with the least snowfall in Riggins, Idaho, is August, when snow falls for 0.3 days and typically aggregates up to 0.08" (2mm) of snow.

How much does it snow in Riggins in August?

In Riggins, Idaho, in August, during 0.3 snowfall days, 0.08" (2mm) of snow is typically accumulated.

How many hours of daylight does Riggins have in August?

In August, the average day length in Riggins is 14h and 2min.

When is the sunrise / sunset in August in Riggins?

On the first day of August in Riggins, sunrise is at 5:30 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 7:24 pm PDT.

How long on average sun shines in August in Riggins?

The average sunshine duration in August in Riggins, Idaho, is 11.2h.

How high is the UV index in August in Riggins?

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

Average temperature in August
Riggins, ID

Average temperature in August - Riggins, ID
  • Average high temperature in August: 75.7°F

The warmest months (with the highest average high temperature) are July and August (75.7°F).
The month with the lowest average high temperature is December (25.3°F).

  • Average low temperature in August: 45.7°F

The month with the highest average low temperature is August (45.7°F).
The coldest month (with the lowest average low temperature) is January (12°F).

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Average pressure in August
Riggins, ID

Average pressure in August - Riggins, ID
  • Average pressure in August: 29.94"Hg

The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in August
Riggins, ID

Average wind speed in August - Riggins, ID
  • Average wind speed in August: 5.3mph

The windiest month (with the highest average wind speed) is March (6mph).
The calmest months (with the lowest average wind speed) are May, June, August and September (5.3mph).

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Average humidity in August
Riggins, ID

Average humidity in August - Riggins, ID
  • Average humidity in August: 48%

The month with the highest relative humidity is February (94%).
The month with the lowest relative humidity is August (48%).

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Average rainfall in August
Riggins, ID

Average rainfall in August - Riggins, ID
  • Average rainfall in August: 0.55"

The wettest month (with the highest rainfall) is February (4.49").
The driest month (with the least rainfall) is July (0.51").

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Average rainfall days in August
Riggins, ID

Average rainfall days in August - Riggins, ID
  • Average rainfall days in August: 5.8 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (1.8 days).

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Average snowfall in August
Riggins, ID

Average snowfall in August - Riggins, ID
  • Average snowfall in August: 0.08"

The month with the highest snowfall is February (36.1").
The month with the least snowfall is August (0.08").

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Average snowfall days in August
Riggins, ID

Average snowfall days in August - Riggins, ID
  • Average snowfall days in August: 0.3 days

The month with the highest number of snowfall days is March (24.9 days).
The month with the least snowfall days is August (0.3 days).

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

Average daylight in August / Average sunshine in August - Riggins, ID
  • Average daylight in August: 14h and 0min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in August: 11h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

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Average sunshine days in August
Riggins, ID

Average sunshine days in August - Riggins, ID
  • Average sunshine days in August: 21.9 days

The month with the most sunshine days is July (22.3 days).
The months with the least sunshine days are February and March (6.3 days).

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Average UV index in August
Riggins, ID

Average UV index in August - Riggins, ID
  • Average UV index in August: 4

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 1).

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Average cloud cover in August
Riggins, ID

Average cloud cover in August - Riggins, ID
  • Average cloud cover in August: 13

The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 13).

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Average visibility in August
Riggins, ID

Average visibility in August - Riggins, ID
  • Average visibility in August: 6mi

The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (3mi).

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Riggins, Idaho, USA

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