August weather forecast
Keokuk, IA

Weather in August

August, the last month of the summer, in Keokuk, is another warm month, with temperature in the range of an average low of 64°F (17.8°C) and an average high of 82.9°F (28.3°C).

Temperature

In August, the average high-temperature is relatively the same as in July - a still moderately hot 82.9°F (28.3°C). In Keokuk, in August, the average low-temperature is 64°F (17.8°C).

Heat index

The average heat index is evaluated at a tropical 90.5°F (32.5°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'feels like', or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, differences in body mass, height, and shape, wind), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in Keokuk is 78%.

Rainfall

In Keokuk, it is raining for 12.2 days, with typically 2.09" (53mm) of accumulated precipitation. In Keokuk, during the entire year, the rain falls for 140.6 days and collects up to 27.72" (704mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In Keokuk, the average length of the day is 13.7h.

Sunshine

In August, the average sunshine in Keokuk, Iowa, is 10.1h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV rays for average individuals.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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.
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FAQ

What is the temperature in August in Keokuk?

The average high-temperature, in August, in Keokuk, Iowa, is 82.9°F (28.3°C), while the average low-temperature is 64°F (17.8°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 90.5°F (32.5°C).

What is the average humidity in August in Keokuk?

The average relative humidity in August is 78%.

How much does it rain in Keokuk in August?

In August, in Keokuk, the rain falls for 12.2 days. Throughout August, 2.09" (53mm) of precipitation is accumulated.

When it does not snow in Keokuk?

In Keokuk snow does not fall in May through September.

How many hours of daylight does Keokuk have in August?

In August, the average length of the day is 13.7h.

How long on average sun shines in August in Keokuk?

In August, the average sunshine in Keokuk, Iowa, is 10.1h.

What is the month with the highest UV index in Keokuk?

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

What is the UV index reading in August in Keokuk?

The average daily maximum UV index in August in Keokuk, Iowa, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV radiation.

Average temperature in August
Keokuk, IA

Average temperature in August - Keokuk, IA
  • Average high temperature in August: 82.9°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in August: 64°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).

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Average pressure in August
Keokuk, IA

Average pressure in August - Keokuk, IA
  • Average pressure in August: 29.97"

The month with the highest atmospheric pressure is January (30.15").
The month with the lowest atmospheric pressure is June (29.9").

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Average wind speed in August
Keokuk, IA

Average wind speed in August - Keokuk, IA
  • Average wind speed in August: 6.6mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

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Average humidity in August
Keokuk, IA

Average humidity in August - Keokuk, IA
  • Average humidity in August: 78%

Months with the highest relative humidity are June and July (81%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in August
Keokuk, IA

Average rainfall in August - Keokuk, IA
  • Average rainfall in August: 2.09"

The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is January (1.34").

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Average rainfall days in August
Keokuk, IA

Average rainfall days in August - Keokuk, IA
  • Average rainfall days in August: 12.2 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (5.7 days).

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Average snowfall in August
Keokuk, IA

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

The month with the highest snowfall is January (3.94").
Months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Keokuk, IA

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

The month with the highest number of snowfall days is January (9.8 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Keokuk, IA
  • Average daylight in August: 13.7h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in August: 10.1h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is January (Average sunshine: 4.3h).

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Average sunshine days in August
Keokuk, IA

Average sunshine days in August - Keokuk, IA
  • Average sunshine days in August: 17.2 days

The month with the most sunshine days is December (18.6 days).
The month with the least sunshine days is June (10.9 days).

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Average UV index in August
Keokuk, IA

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

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in August
Keokuk, IA

Average cloud cover in August - Keokuk, IA
  • Average cloud cover in August: 28

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

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Average visibility in August
Keokuk, IA

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

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

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