August weather forecast
Casey, IA

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Weather in August

The last month of the summer, August, is also a moderately hot month in Casey, Iowa, with an average temperature ranging between min 62.2°F (16.8°C) and max 81°F (27.2°C).

Temperature

The transition into August shows a subtle variation to a still warm 81°F (27.2°C) from July's 82.2°F (27.9°C) in the average high-temperature. Throughout August, Casey records an average temperature of 62.2°F (16.8°C) at night.

Heat index

The heat index value during August is estimated at a hot 86°F (30°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Always consider that heat index estimations are for light winds and places in the shade. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. 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 quite important for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.

Humidity

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

Rainfall

In Casey, in August, it is raining for 12.8 days, with typically 2.09" (53mm) of accumulated precipitation. Throughout the year, there are 117.3 rainfall days, and 19.09" (485mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in August is 13h and 47min.
On the first day of the month, sunrise is at 6:13 am and sunset at 8:35 pm. On the last day of August, sunrise is at 6:44 am and sunset at 7:52 pm CDT.

Sunshine

In Casey, the average sunshine in August is 9.7h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily high UV index of 6 in August leads to these guidelines:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
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Frequently asked questions

What are the temperatures in Casey in August?

In Casey, in August, the average high-temperature is 81°F (27.2°C), and the average low-temperature is 62.2°F (16.8°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is estimated at 86°F (30°C).

What is the average humidity in August in Casey?

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

How many days does it rain in August in Casey?

In Casey, in August, it is raining for 12.8 days, with typically 2.09" (53mm) of accumulated precipitation.

When it does not snow in Casey?

June through September are months without snowfall in Casey.

How many hours of daylight does Casey have in August?

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

When are sunrise and sunset in August in Casey?

In August, on the first day of the month, sunrise is at 6:13 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 7:52 pm CDT.

How many hours of sunshine does Casey have in August?

In August, the average sunshine duration in Casey is 9.7h.

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

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

How high is the UV index in August in Casey?

In August, the average daily maximum UV index in Casey, Iowa, is 6. A UV Index of 6 to 7 symbolizes 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
Casey, IA

Average temperature in August - Casey, IA
  • Average high temperature in August: 81°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in August: 62.2°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).

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Average pressure in August
Casey, IA

Average pressure in August - Casey, IA
  • Average pressure in August: 29.96"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in August
Casey, IA

Average wind speed in August - Casey, IA
  • Average wind speed in August: 7.2mph

The windiest months (with the highest average wind speed) are January and February (10.6mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

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Average humidity in August
Casey, IA

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

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in August
Casey, IA

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

The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is January (0.55").

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Average rainfall days in August
Casey, IA

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

The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is February (2.9 days).

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Average snowfall in August
Casey, IA

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

The month with the highest snowfall is February (2.76").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Casey, IA

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

The month with the highest number of snowfall days is January (8.8 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
Casey, IA

Average daylight in August / Average sunshine in August - Casey, 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 4min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days in August
Casey, IA

Average sunshine days in August - Casey, IA
  • Average sunshine days in August: 15.8 days

The month with the most sunshine days is December (22 days).
The month with the least sunshine days is May (12.1 days).

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Average UV index in August
Casey, IA

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

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

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Average cloud cover in August
Casey, IA

Average cloud cover in August - Casey, IA
  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 30).

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Average visibility in August
Casey, IA

Average visibility in August - Casey, IA
  • Average visibility in August: 5mi

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

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Casey, Iowa, USA

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