August weather forecast
New Vienna, IA

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Weather in August

The last month of the summer, August, is also a moderately hot month in New Vienna, Iowa, with an average temperature varying between 60.4°F (15.8°C) and 77.9°F (25.5°C).

Temperature

The shift to August signals an average high-temperature of a still warm 77.9°F (25.5°C), subtly varied from July's 79.5°F (26.4°C). Throughout August nights, New Vienna registers an average low-temperature of 60.4°F (15.8°C).

Humidity

In New Vienna, Iowa, the average relative humidity in August is 82%.

Rainfall

In New Vienna, in August, during 14.3 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, in New Vienna, there are 150.8 rainfall days, and 32.4" (823mm) of precipitation is accumulated.

Snowfall

In New Vienna, snow does not fall in May through September.

Daylight

The average length of the day in August is 13h and 52min.
On the first day of the month, sunrise is at 5:57 am and sunset at 8:24 pm. On the last day of August, in New Vienna, sunrise is at 6:29 am and sunset at 7:39 pm CDT.

Sunshine

In New Vienna, the average sunshine in August is 9.5h.

UV index

The months with the highest UV index in New Vienna are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 5 in August interprets into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. To protect against the Sun's most potent rays, avoid direct exposure around midday. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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Frequently asked questions

What is the average August temperature in New Vienna?

The high-temperature, in August, in New Vienna, is 77.9°F (25.5°C), while the low-temperature averages to 60.4°F (15.8°C).

What is the average humidity in August in New Vienna?

The average relative humidity in August in New Vienna, Iowa, is 82%.

How much does it rain in New Vienna in August?

In August, in New Vienna, the rain falls for 14.3 days. Throughout August, 2.24" (57mm) of precipitation is accumulated.

When it does not snow in New Vienna?

May through September are months without snowfall in New Vienna.

What is the average length of the day in August in New Vienna?

The average day length in August in New Vienna is 13h and 52min.

When is the sunrise / sunset in August in New Vienna?

On the first day of August, sunrise is at 5:57 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:39 pm CDT.

How long on average sun shines in August in New Vienna?

In New Vienna, the average sunshine duration in August is 9.5h.

When is the highest UV index in New Vienna?

May through August, with an average maximum UV index of 5, are months with the highest UV index in New Vienna, Iowa.

What is the UV index intensity in August in New Vienna?

In August, the average daily maximum UV index in New Vienna, Iowa, is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
New Vienna, IA

Average temperature in August - New Vienna, IA
  • Average high temperature in August: 77.9°F

The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (24.3°F).

  • Average low temperature in August: 60.4°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).

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Average pressure in August
New Vienna, IA

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in August
New Vienna, IA

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

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in August
New Vienna, IA

Average humidity in August - New Vienna, IA
  • Average humidity in August: 82%

The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and October (76%).

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Average rainfall in August
New Vienna, IA

Average rainfall in August - New Vienna, IA
  • Average rainfall in August: 2.24"

The wettest month (with the highest rainfall) is May (4.72").
The driest month (with the least rainfall) is January (1.34").

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Average rainfall days in August
New Vienna, IA

Average rainfall days in August - New Vienna, IA
  • Average rainfall days in August: 14.3 days

The months with the highest number of rainy days are May and June (19.9 days).
The month with the least rainy days is February (4.3 days).

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Average snowfall in August
New Vienna, IA

Average snowfall in August - New Vienna, IA
  • Average snowfall in August: 0"

The month with the highest snowfall is January (6.22").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
New Vienna, IA

Average snowfall days in August - New Vienna, IA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (14 days).
The 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
New Vienna, IA

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in August: 9h and 3min

The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in August
New Vienna, IA

Average sunshine days in August - New Vienna, IA
  • Average sunshine days in August: 13.6 days

The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is June (7.8 days).

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Average UV index in August
New Vienna, IA

Average UV index in August - New Vienna, IA
  • Average UV index in August: 5

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).

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Average cloud cover in August
New Vienna, IA

Average cloud cover in August - New Vienna, IA
  • Average cloud cover in August: 33

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 33).

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Average visibility in August
New Vienna, IA

Average visibility in August - New Vienna, IA
  • Average visibility in August: 6mi

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

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New Vienna, Iowa, USA

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