August weather forecast
Indianola, IA

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Weather in August

With a slight dip in temperature, August in Indianola, Iowa, continues to enjoy the summer warmth accompanied by average 2.01" (51mm) of rainfall. Transitioning from sizzling July, this month maintains a balanced hot environment, bearing traces of the receding summer. The heated, long days start meeting delightful cool breezes. Occasional showers give brief respite from the persistent warmth. With August waving goodbye, Indianola steadily starts its annual journey towards fall.

Temperature

August's advent in Indianola denotes a minor fluctuation in the average high-temperature to a still warm 81.3°F (27.4°C) from July's 83.1°F (28.4°C). The low-temperature average for Indianola during August stands at a comfortable 62.6°F (17°C).

Heat index

Throughout August, the heat index is appraised at a hot 87.8°F (31°C). Prolonged activity during exposure might result in a state of fatigue and cause heat cramps.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.

Humidity

The average relative humidity in August is 79%.

Rainfall

In Indianola, Iowa, in August, during 12.8 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. Throughout the year, there are 118.9 rainfall days, and 18.62" (473mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Indianola, Iowa.

Daylight

In Indianola, the average length of the day in August is 13h and 47min.
On the first day of August, sunrise is at 6:10 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 7:48 pm CDT.

Sunshine

In Indianola, the average sunshine in August is 9.9h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: A maximum high daily UV index of 6 during August translates into the following directions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
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Frequently asked questions

What is the usual temperature for Indianola in August?

During August, Indianola experiences an average high-temperature of 81.3°F (27.4°C) and a low-temperature of 62.6°F (17°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, in August is appraised at 87.8°F (31°C).

What is the average humidity in August in Indianola?

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

How many days does it rain in August in Indianola?

In Indianola, Iowa, in August, during 12.8 rainfall days, 2.01" (51mm) of precipitation is typically accumulated.

When it does not snow in Indianola?

June through September are months without snowfall in Indianola.

How many hours of daylight does Indianola have in August?

In Indianola, the average day length in August is 13h and 47min.

What time are sunrise and sunset in August in Indianola?

In August, on the first day of the month, sunrise is at 6:10 am and sunset at 8:30 pm. On the last day of the month, in Indianola, Iowa, sunrise is at 6:40 am and sunset at 7:48 pm CDT.

How long on average sun shines in August in Indianola?

The average sunshine duration in August in Indianola is 9.9h.

What are the months with the highest UV index in Indianola?

The months with the highest UV index in Indianola, Iowa, are June through August, with an average maximum UV index of 6.

How high is the UV index in August in Indianola?

In August, the average daily maximum UV index in Indianola is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.
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
Indianola, IA

Average temperature in August - Indianola, IA
  • Average high temperature in August: 81.3°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in August: 62.6°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).

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Average pressure in August
Indianola, IA

Average pressure in August - Indianola, IA
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in August
Indianola, IA

Average wind speed in August - Indianola, IA
  • Average wind speed in August: 6.9mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

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Average humidity in August
Indianola, IA

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

The months with the highest relative humidity are January and June (82%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
Indianola, IA

Average rainfall in August - Indianola, IA
  • Average rainfall in August: 2.01"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (0.55").

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Average rainfall days in August
Indianola, IA

Average rainfall days in August - Indianola, IA
  • Average rainfall days in August: 12.8 days

The months with the highest number of rainy days are May and June (15.9 days).
The month with the least rainy days is January (3.4 days).

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Average snowfall in August
Indianola, IA

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

The month with the highest snowfall is February (3.03").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Indianola, IA

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

The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Indianola, IA
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days in August
Indianola, IA

Average sunshine days in August - Indianola, IA
  • Average sunshine days in August: 15.3 days

The month with the most sunshine days is December (21.9 days).
The month with the least sunshine days is June (11 days).

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Average UV index in August
Indianola, IA

Average UV index in August - Indianola, IA
  • Average UV index in August: 6

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

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Average cloud cover in August
Indianola, IA

Average cloud cover in August - Indianola, IA
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in August
Indianola, IA

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

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

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Indianola, Iowa, USA

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