August weather forecast
Iona, MN

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Weather in August

The last month of the summer, August, is also a moderately hot month in Iona, Minnesota, with an average temperature fluctuating between 78.3°F (25.7°C) and 59°F (15°C).

Temperature

The arrival of August brings an average high-temperature of a still moderately hot 78.3°F (25.7°C), nearly identical to July's 80.1°F (26.7°C). Iona observes an average nighttime temperature of 59°F (15°C) during August.

Humidity

The average relative humidity in August in Iona is 77%.

Rainfall

In Iona, in August, it is raining for 12.4 days, with typically 1.89" (48mm) of accumulated precipitation. In Iona, during the entire year, the rain falls for 113.2 days and collects up to 22.2" (564mm) of precipitation.

Snowfall

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

Daylight

In Iona, Minnesota, the average length of the day in August is 13h and 56min.
On the first day of August, sunrise is at 6:12 am and sunset at 8:46 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 8:00 pm CDT.

Sunshine

In Iona, the average sunshine in August is 9.6h.

UV index

In Iona, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In August, the maximum UV index of 5 translates into these guidelines:
Take precautions - Protection against sun damage is advised. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Updated: Jun 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature?

The high-temperature during August is 78.3°F (25.7°C) and the low-temperature is 59°F (15°C).

What is the average humidity in August?

In August, the average relative humidity is 77%.

How many days does it rain in August?

In Iona, during August, the rain falls for 12.4 days and regularly aggregates up to 1.89" (48mm) of precipitation.

When it does not snow?

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

What is the average length of the day in August?

In August, the average day length in Iona is 13h and 56min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:12 am and sunset at 8:46 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 8:00 pm CDT.

How long on average sun shines in August?

In August, the average sunshine duration is 9.6h.

How high is the UV index in August?

In Iona, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to 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, MN

Average temperature in August - Iona, MN
  • Average high temperature in August: 78.3°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (20.8°F).

  • Average low temperature in August: 59°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (7.7°F).

Average pressure in August
Iona, MN

Average pressure in August - Iona, MN
  • Average pressure in August: 29.94"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in August
Iona, MN

Average wind speed in August - Iona, MN
  • Average wind speed in August: 8.3mph

The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

Average humidity in August
Iona, MN

Average humidity in August - Iona, MN
  • Average humidity in August: 77%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (67%).

Average rainfall in August
Iona, MN

Average rainfall in August - Iona, MN
  • Average rainfall in August: 1.89"

The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is January (0.75").

Average rainfall days in August
Iona, MN

Average rainfall days in August - Iona, MN
  • Average rainfall days in August: 12.4 days

The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is February (2.1 days).

Average snowfall in August
Iona, MN

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

The month with the highest snowfall is February (6.3").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Iona, MN

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

The month with the highest number of snowfall days is December (12.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Iona, MN
  • 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: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in August
Iona, MN

Average sunshine days in August - Iona, MN
  • Average sunshine days in August: 16.1 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is April (11.2 days).

Average UV index in August
Iona, MN

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

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).

Average cloud cover in August
Iona, MN

Average cloud cover in August - Iona, MN
  • Average cloud cover in August: 32

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July and September (Cloud cover 31).

Average visibility in August
Iona, MN

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

The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).

Iona, Minnesota, USA

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