August weather forecast
Okoboji, IA

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Weather in August

August, the last month of the summer in Okoboji, is also a moderately hot month, with an average temperature varying between 78.3°F (25.7°C) and 59.5°F (15.3°C).

Temperature

Transitioning into August, Okoboji records an average high-temperature of a still warm 78.3°F (25.7°C), almost identical to July's 80.2°F (26.8°C). In Okoboji, the expected average low-temperature for August is a refreshing 59.5°F (15.3°C).

Humidity

In Okoboji, the average relative humidity in August is 79%.

Rainfall

In Okoboji, Iowa, in August, during 14.8 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. In Okoboji, during the entire year, the rain falls for 124.6 days and collects up to 24.37" (619mm) of precipitation.

Snowfall

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

Daylight

In Okoboji, the average length of the day in August is 13h and 55min.
On the first day of the month, sunrise is at 6:11 am and sunset at 8:42 pm. On the last day of August, in Okoboji, sunrise is at 6:44 am and sunset at 7:56 pm CDT.

Sunshine

In August, the average sunshine is 9.5h.

UV index

In Okoboji, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In August, a daily maximum UV index of 5 leads to the following instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Okoboji in August?

The high-temperature, in August, in Okoboji, is 78.3°F (25.7°C), while the low-temperature averages to 59.5°F (15.3°C).

What is the average humidity in August in Okoboji?

The average relative humidity in August in Okoboji, Iowa, is 79%.

How much does it rain in Okoboji in August?

In August, in Okoboji, Iowa, the rain falls for 14.8 days. Throughout August, 2.13" (54mm) of precipitation is accumulated.

When it does not snow in Okoboji?

June through September are months without snowfall.

How many hours of daylight does Okoboji have in August?

In August, the average day length in Okoboji, Iowa, is 13h and 55min.

When are sunrise and sunset in August in Okoboji?

On the first day of August in Okoboji, Iowa, sunrise is at 6:11 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 7:56 pm CDT.

How long on average sun shines in August in Okoboji?

In Okoboji, Iowa, the average sunshine duration in August is 9.5h.

What is the UV index reading in August in Okoboji?

In Okoboji, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Okoboji, IA

Average temperature in August - Okoboji, IA
  • Average high temperature in August: 78.3°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.5°F).

  • Average low temperature in August: 59.5°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 (9.3°F).

Average pressure in August
Okoboji, IA

Average pressure in August - Okoboji, IA
  • Average pressure in August: 29.95"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
Okoboji, IA

Average wind speed in August - Okoboji, IA
  • Average wind speed in August: 7.9mph

The windiest months (with the highest average wind speed) are January, February and April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

Average humidity in August
Okoboji, IA

Average humidity in August - Okoboji, IA
  • Average humidity in August: 79%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (68%).

Average rainfall in August
Okoboji, IA

Average rainfall in August - Okoboji, IA
  • Average rainfall in August: 2.13"

The wettest month (with the highest rainfall) is June (3.9").
The driest month (with the least rainfall) is January (0.83").

Average rainfall days in August
Okoboji, IA

Average rainfall days in August - Okoboji, IA
  • Average rainfall days in August: 14.8 days

The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (2.1 days).

Average snowfall in August
Okoboji, IA

Average snowfall in August - Okoboji, IA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (5.47").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Okoboji, IA

Average snowfall days in August - Okoboji, IA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Okoboji, IA

Average daylight in August / Average sunshine in August - Okoboji, IA
  • 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 3min

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 54min).

Average sunshine days in August
Okoboji, IA

Average sunshine days in August - Okoboji, IA
  • Average sunshine days in August: 13.9 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (8.6 days).

Average UV index in August
Okoboji, IA

Average UV index in August - Okoboji, IA
  • Average UV index in August: 5

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

Average cloud cover in August
Okoboji, IA

Average cloud cover in August - Okoboji, IA
  • Average cloud cover in August: 33

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in August
Okoboji, IA

Average visibility in August - Okoboji, IA
  • Average visibility in August: 6mi

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

Okoboji, Iowa, USA

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