Idaho Falls
Idaho, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Idaho Falls, ID

An eye-catching shot of the Snake River, Idaho Falls, with a clear view of the iconic Idaho Falls Temple in the back, through the trees
An eye-catching shot of the Snake River, Idaho Falls, with a clear view of the iconic Idaho Falls Temple in the back, through the trees
August, the last month of the summer, in Idaho Falls, is another warm month, with average temperature fluctuating between 49.8°F (9.9°C) and 85.8°F (29.9°C).

Temperature

In Idaho Falls, the average high-temperature in August is almost the same as in July - a warm 85.8°F (29.9°C). In Idaho Falls, the average low-temperature is 49.8°F (9.9°C).

Rainfall

In August, the rain falls for 6 days. Throughout August, 0.9" (23.6mm) of precipitation is accumulated. Throughout the year, in Idaho Falls, there are 100 rainfall days, and 14.2" (361.1mm) of precipitation is accumulated.

Daylight

The average length of the day in August is 13.9h.

Sunshine

The average sunshine in Idaho Falls is 11h.

UV index

The average daily maximum UV index in August is 8. A UV Index estimate of 8 to 10 represents a very high health risk from the exposure to the Sun's UV rays for ordinary individuals.
Note: In August, the average maximum UV index of 8 translate into the following recommendations:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in August in Idaho Falls?

The average high-temperature, in August, in Idaho Falls, Idaho, is 85.8°F (29.9°C), while the average low-temperature is 49.8°F (9.9°C).

How much does it rain in Idaho Falls in August?

In August, in Idaho Falls, Idaho, the rain falls for 6 days. Throughout August, 0.9" (23.6mm) of precipitation is accumulated.

How many hours of daylight does Idaho Falls have in August?

The average length of the day in August in Idaho Falls is 13.9h.

How many hours of sunshine does Idaho Falls have in August?

In Idaho Falls, the average sunshine in August is 11h.

What is the UV index reading in August in Idaho Falls?

The average daily maximum UV index in August in Idaho Falls is 8. A UV Index estimate of 8 to 10 represents a very high health threat from unsafe exposure to the Sun's UV rays.
Average temperature in August - Idaho Falls, ID
  • Average high temperature in August: 85.8°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in August: 49.9°F

The month with the highest average low temperature is July (51.4°F).
The coldest month (with the lowest average low temperature) is January (12.5°F).

Average rainfall in August - Idaho Falls, ID
  • Average rainfall in August: 0.9"

The wettest month (with the highest rainfall) is May (2").
The driest month (with the lowest rainfall) is July (0.7").

Average rainfall days in August - Idaho Falls, ID
  • Average rainfall days in August: 6 days

Months with the highest number of rainy days are January and December (11 days).
Months with the lowest number of rainy days are July and October (5 days).

Average daylight in August / Average sunshine in August - Idaho Falls, ID
  • Average daylight in August: 13.9h

The month with the longest days is June (Average daylight: 15.4h).
The month with shortest days is December (Average daylight: 9h).

  • Average sunshine in August: 11h

The month with most sunshine is July (Average sunshine: 12h).
Months with least sunshine are January, November and December (Average sunshine: 4).

Average UV index in August - Idaho Falls, ID
  • Average UV index in August: 8

The month with the highest UV index is July (UV index 10).
Months with the lowest UV index are January and December (UV index 1).