August weather forecast
New Vienna, IA

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Weather in August

August, the last month of the summer in New Vienna, is another warm month, with an average temperature varying between 77.9°F (25.5°C) and 60.4°F (15.8°C).

Temperature

The shift into August records an average high-temperature of a still moderately hot 77.9°F (25.5°C), subtly varied from July's 79.5°F (26.4°C). New Vienna experiences an average low-temperature of 60.4°F (15.8°C) in the month of August.

Humidity

The average relative humidity in August is 82%.

Rainfall

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

Snowfall

May through September are months without snowfall.

Daylight

In New Vienna, 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, 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

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 5 in August suggests the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Updated: Jul 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for New Vienna in August?

In August, the average high-temperature and low-temperature are 77.9°F (25.5°C) and 60.4°F (15.8°C) respectively.

What is the average humidity in August?

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

How much does it rain in August?

In New Vienna, in August, during 14.3 rainfall days, 2.24" (57mm) of precipitation is typically accumulated.

When it does not snow?

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

What is the average length of the day in August?

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

What time are sunrise and sunset in August?

In August, on the first day of the month, 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, Iowa, the average sunshine duration in August is 9.5h.

What is the month with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 5.

What is the UV index intensity in August?

In August, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health risk from 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
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

New Vienna, Iowa, USA

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