August weather forecast
Centerville, IA

Weather in August

August, the last month of the summer in Centerville, is another warm month, with an average temperature ranging between max 82°F (27.8°C) and min 63.5°F (17.5°C).

Temperature

In August, the average high-temperature is almost the same as in July - a still warm 82°F (27.8°C). The average low-temperature, in Centerville, is 63.5°F (17.5°C).

Heat index

In August, the average heat index is estimated at a tropical 88.3°F (31.3°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'felt air temperature', or 'feels like', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like activity, wind, differences in body mass, height, and shape, and metabolic differences affect individual temperature impact. 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. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In August, the average relative humidity in Centerville, Iowa, is 78%.

Rainfall

In Centerville, during August, the rain falls for 14.8 days and regularly aggregates up to 2.76" (70mm) of precipitation. Throughout the year, there are 143.2 rainfall days, and 27.48" (698mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Centerville, the average length of the day in August is 13h and 44min.
On the first day of August, sunrise is at 6:08 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 7:45 pm CDT.

Sunshine

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

UV index

In Centerville, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In August, the average maximum UV index of 5 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in August in Centerville?

The average high-temperature, in August, in Centerville, Iowa, is 82°F (27.8°C), while the average low-temperature is 63.5°F (17.5°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, is estimated at 88.3°F (31.3°C).

What is the average humidity in August in Centerville?

In Centerville, Iowa, the average relative humidity in August is 78%.

How much does it rain in Centerville in August?

In Centerville, in August, during 14.8 rainfall days, 2.76" (70mm) of precipitation is typically accumulated.

When it does not snow in Centerville?

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

What is the average length of the day in August in Centerville?

In August, the average day length is 13h and 44min.

When is the sunrise / sunset in August in Centerville?

On the first day of August, sunrise is at 6:08 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 7:45 pm CDT.

How long on average sun shines in August in Centerville?

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

What is the UV index intensity in August in Centerville?

In August, the average daily maximum UV index in Centerville is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Centerville, IA

Average temperature in August - Centerville, IA
  • Average high temperature in August: 82°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 (30.6°F).

  • Average low temperature in August: 63.5°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

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Average pressure in August
Centerville, IA

Average pressure in August - Centerville, 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
Centerville, IA

Average wind speed in August - Centerville, IA
  • Average wind speed in August: 7mph

The windiest months (with the highest average wind speed) are January, February and March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in August
Centerville, IA

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

The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in August
Centerville, IA

Average rainfall in August - Centerville, IA
  • Average rainfall in August: 2.76"

The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (1.02").

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Average rainfall days in August
Centerville, IA

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

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (5 days).

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Average snowfall in August
Centerville, IA

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

The month with the highest snowfall is January (4.33").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Centerville, IA

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

The month with the highest number of snowfall days is January (9.4 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
Centerville, IA

Average daylight in August / Average sunshine in August - Centerville, IA
  • Average daylight in August: 13h and 44min

The month with the longest days is June (Average daylight: 15h and 3min).
The month with the shortest days is December (Average daylight: 9h and 19min).

  • Average sunshine in August: 9h and 54min

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
Centerville, IA

Average sunshine days in August - Centerville, IA
  • Average sunshine days in August: 12.9 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is June (8.8 days).

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Average UV index in August
Centerville, IA

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

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

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Average cloud cover in August
Centerville, IA

Average cloud cover in August - Centerville, IA
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July, August and September (Cloud cover 29).

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Average visibility in August
Centerville, IA

Average visibility in August - Centerville, 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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