August weather forecast
Vandalia, IN

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Weather in August

The last month of the summer, August, is also a moderately hot month in Vandalia, Indiana, with an average temperature varying between 82.2°F (27.9°C) and 63.7°F (17.6°C).

Temperature

In August, Vandalia notes an average high-temperature of a still moderately hot 82.2°F (27.9°C), hardly different from the preceding month. In August, Vandalia experiences an average nighttime temperature of 63.7°F (17.6°C).

Heat index

The average heat index in August is computed to be a hot 89.6°F (32°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.
Heat index readings emphasize conditions of light breezes and shaded spots. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.

Humidity

In Vandalia, the average relative humidity in August is 80%.

Rainfall

In Vandalia, in August, during 13.4 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. In Vandalia, Indiana, during the entire year, the rain falls for 154.9 days and collects up to 26.18" (665mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in August in Vandalia, Indiana, is 13h and 40min.
On the first day of the month, sunrise is at 6:48 am and sunset at 8:59 pm. On the last day of August, sunrise is at 7:15 am and sunset at 8:19 pm EDT.

Sunshine

In August, the average sunshine in Vandalia is 9.4h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In August, an average UV index of 6 transforms into the following instructions:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
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Frequently asked questions

What are the temperatures in Vandalia in August?

In Vandalia, in August, the average high-temperature is 82.2°F (27.9°C), and the average low-temperature is 63.7°F (17.6°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in August is computed to be 89.6°F (32°C).

What is the average humidity in August in Vandalia?

The average relative humidity in August is 80%.

How much does it rain in Vandalia in August?

In Vandalia, in August, it is raining for 13.4 days, with typically 1.93" (49mm) of accumulated precipitation.

When it does not snow in Vandalia?

May through September are months without snowfall.

How many hours of daylight does Vandalia have in August?

In August, the average day length is 13h and 40min.

What time are sunrise and sunset in August in Vandalia?

On the first day of August, sunrise is at 6:48 am and sunset at 8:59 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 8:19 pm EDT.

How long on average sun shines in August in Vandalia?

In August, the average sunshine duration in Vandalia, Indiana, is 9.4h.

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

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

What is the UV index reading in August in Vandalia?

In Vandalia, Indiana, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health threat 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
Vandalia, IN

Average temperature in August - Vandalia, IN
  • Average high temperature in August: 82.2°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (34.9°F).

  • Average low temperature in August: 63.7°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

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Average pressure in August
Vandalia, IN

Average pressure in August - Vandalia, IN
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in August
Vandalia, IN

Average wind speed in August - Vandalia, IN
  • Average wind speed in August: 5.3mph

The windiest month (with the highest average wind speed) is February (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in August
Vandalia, IN

Average humidity in August - Vandalia, IN
  • Average humidity in August: 80%

The months with the highest relative humidity are May and July (82%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in August
Vandalia, IN

Average rainfall in August - Vandalia, IN
  • Average rainfall in August: 1.93"

The wettest month (with the highest rainfall) is April (3.11").
The driest month (with the least rainfall) is September (1.54").

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Average rainfall days in August
Vandalia, IN

Average rainfall days in August - Vandalia, IN
  • Average rainfall days in August: 13.4 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in August
Vandalia, IN

Average snowfall in August - Vandalia, IN
  • Average snowfall in August: 0"

The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Vandalia, IN

Average snowfall days in August - Vandalia, IN
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (9.1 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
Vandalia, IN

Average daylight in August / Average sunshine in August - Vandalia, IN
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 9h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and December (Average sunshine: 4h and 18min).

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Average sunshine days in August
Vandalia, IN

Average sunshine days in August - Vandalia, IN
  • Average sunshine days in August: 14.3 days

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is May (9.8 days).

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Average UV index in August
Vandalia, IN

Average UV index in August - Vandalia, IN
  • Average UV index in August: 6

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

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Average cloud cover in August
Vandalia, IN

Average cloud cover in August - Vandalia, IN
  • Average cloud cover in August: 30

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in August
Vandalia, IN

Average visibility in August - Vandalia, IN
  • Average visibility in August: 5mi

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

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Vandalia, Indiana, USA

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