August weather forecast
Iona, ID

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Weather in August

August, the last month of the summer in Iona, is another warm month, with an average temperature varying between 84.4°F (29.1°C) and 54.3°F (12.4°C).

Temperature

Iona measures an average high-temperature of a moderately hot 84.4°F (29.1°C) in August, nearly consistent with the preceding month. The average low-temperature reading in August for Iona reflects a significant fall from the daytime highs, stabilizing at a fresh 54.3°F (12.4°C).

Humidity

With an average relative humidity of 35%, August is the least humid month.

Rainfall

In August, the rain falls for 8.1 days. Throughout August, 0.63" (16mm) of precipitation is accumulated. In Iona, Idaho, during the entire year, the rain falls for 84.3 days and collects up to 6.97" (177mm) of precipitation.

Snowfall

In Iona, snow does not fall in June through August.

Daylight

In Iona, the average length of the day in August is 13h and 55min.
On the first day of the month, sunrise is at 6:18 am and sunset at 8:49 pm. On the last day of August, sunrise is at 6:51 am and sunset at 8:04 pm MDT.

Sunshine

The average sunshine in August is 11.7h.

UV index

In Iona, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 5 during August translates into the following directions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

How hot does it get in Iona in August?

In Iona, 84.4°F (29.1°C) is the average high-temperature and 54.3°F (12.4°C) is the average low-temperature during August.

What is the least humid month?

The least humid month is August, with an average relative humidity of 35%.

What is the average humidity in August?

The average relative humidity in August is 35%.

How much does it rain in August?

In Iona, in August, it is raining for 8.1 days, with typically 0.63" (16mm) of accumulated precipitation.

When it does not snow?

June through August are months without snowfall.

Does it snow in August?

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

How many hours of daylight does Iona have in August?

The average day length in August is 13h and 55min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:18 am and sunset at 8:49 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 8:04 pm MDT.

How long on average sun shines in August in Iona?

In Iona, the average sunshine duration in August is 11.7h.

What is the UV index reading in August?

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

Average temperature in August
Iona, ID

Average temperature in August - Iona, ID
  • Average high temperature in August: 84.4°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is December (27.9°F).

  • Average low temperature in August: 54.3°F

The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is January (14.2°F).

Average pressure in August
Iona, ID

Average pressure in August - Iona, ID
  • Average pressure in August: 29.96"Hg

The month with the highest atmospheric pressure is January (30.3"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in August
Iona, ID

Average wind speed in August - Iona, ID
  • Average wind speed in August: 7.2mph

The windiest month (with the highest average wind speed) is April (9mph).
The calmest month (with the lowest average wind speed) is January (5.8mph).

Average humidity in August
Iona, ID

Average humidity in August - Iona, ID
  • Average humidity in August: 35%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (35%).

Average rainfall in August
Iona, ID

Average rainfall in August - Iona, ID
  • Average rainfall in August: 0.63"

The wettest months (with the highest rainfall) are May and September (0.83").
The driest month (with the least rainfall) is July (0.35").

Average rainfall days in August
Iona, ID

Average rainfall days in August - Iona, ID
  • Average rainfall days in August: 8.1 days

The month with the highest number of rainy days is May (10.7 days).
The month with the least rainy days is January (3.7 days).

Average snowfall in August
Iona, ID

Average snowfall in August - Iona, ID
  • Average snowfall in August: 0"

The month with the highest snowfall is January (3.86").
The months with the least snowfall are June, July and August (0").

Average snowfall days in August
Iona, ID

Average snowfall days in August - Iona, ID
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (12.9 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in August / Average sunshine in August - Iona, ID
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in August: 11h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in August
Iona, ID

Average sunshine days in August - Iona, ID
  • Average sunshine days in August: 18.2 days

The month with the most sunshine days is October (22.1 days).
The month with the least sunshine days is February (16.2 days).

Average UV index in August
Iona, ID

Average UV index in August - Iona, ID
  • Average UV index in August: 5

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in August
Iona, ID

Average cloud cover in August - Iona, ID
  • Average cloud cover in August: 11

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 11).

Average visibility in August
Iona, ID

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

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).

Iona, Idaho, USA

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