August weather forecast
Vandalia, IN

Weather in August

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

Temperature

In August, the average high-temperature is essentially the same as in July - a still warm 82.2°F (27.9°C). The average low-temperature, in Vandalia, is 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). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. 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 a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, wind, metabolic differences), and activity. 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. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in August is 80%.

Rainfall

In Vandalia, during 13.4 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. In Vandalia, 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

In August, the average length of the day in Vandalia is 13h and 40min.
On the first day of the month, sunrise is at 6:47 am and sunset at 9:00 pm. On the last day of August, sunrise is at 7:15 am and sunset at 8:20 pm EDT.

Sunshine

In August, the average sunshine is 9.4h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Vandalia. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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 Vandalia?

The average high-temperature, in August, is 82.2°F (27.9°C), while the average low-temperature is 63.7°F (17.6°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 89.6°F (32°C).

What is the average humidity in August in Vandalia?

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

How many days does it rain in August in Vandalia?

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

When it does not snow in Vandalia?

In Vandalia, Indiana, snow does not fall in May through September.

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

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

What time are sunrise and sunset in August in Vandalia?

On the first day of August in Vandalia, sunrise is at 6:47 am and sunset at 9:00 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 8:20 pm EDT.

How long on average sun shines in August in Vandalia?

The average sunshine duration in August is 9.4h.

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

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

How high is the UV index in August in Vandalia?

In Vandalia, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
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 40min

The month with the longest days is June (Average daylight: 14h and 53min).
The month with the shortest days is December (Average daylight: 9h and 27min).

  • Average sunshine in August: 9h and 24min

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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