August weather forecast
Graysville, IN

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Weather in August

August, the last month of the summer in Graysville, is also a moderately hot month, with an average temperature ranging between min 64.8°F (18.2°C) and max 82.6°F (28.1°C).

Temperature

The commencement of August introduces an average high-temperature of a still moderately hot 82.6°F (28.1°C), closely mirroring the preceding month. During August, Graysville's temperature averages to a comfortable 64.8°F (18.2°C) at night.

Heat index

During August, the heat index is appraised at a tropical 89.6°F (32°C). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.
Given the heat index, its values are aligned with shaded sites and gentle winds. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.

Humidity

The average relative humidity in August is 80%.

Rainfall

In Graysville, Indiana, in August, it is raining for 13.6 days, with typically 2.2" (56mm) of accumulated precipitation. In Graysville, during the entire year, the rain falls for 150.1 days and collects up to 28.5" (724mm) of precipitation.

Snowfall

In Graysville, snow does not fall in May through October.

Daylight

In Graysville, the average length of the day in August is 13h and 39min.
On the first day of August, sunrise is at 6:51 am and sunset at 9:01 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 8:21 pm EDT.

Sunshine

In Graysville, the average sunshine in August is 9.2h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: A daily high UV index of 6 in August leads to these guidelines:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during August?

The average high-temperature and low-temperature during August are 82.6°F (28.1°C) and 64.8°F (18.2°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is appraised at 89.6°F (32°C).

What is the average humidity in August?

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

How many days does it rain in August?

In Graysville, in August, during 13.6 rainfall days, 2.2" (56mm) of precipitation is typically accumulated.

When it does not snow?

In Graysville, snow does not fall in May through October.

How many hours of daylight does Graysville have in August?

In August, the average day length is 13h and 39min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:51 am and sunset at 9:01 pm. On the last day of the month, in Graysville, sunrise is at 7:18 am and sunset at 8:21 pm EDT.

How long on average sun shines in August?

In Graysville, the average sunshine duration in August is 9.2h.

What are the months with the highest UV index?

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

What is the UV index intensity in August?

In Graysville, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe 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
Graysville, IN

Average temperature in August - Graysville, IN
  • Average high temperature in August: 82.6°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in August: 64.8°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

Average pressure in August
Graysville, IN

Average pressure in August - Graysville, 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).

Average wind speed in August
Graysville, IN

Average wind speed in August - Graysville, IN
  • Average wind speed in August: 5.8mph

The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity in August
Graysville, IN

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

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August
Graysville, IN

Average rainfall in August - Graysville, IN
  • Average rainfall in August: 2.2"

The wettest month (with the highest rainfall) is April (4.06").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days in August
Graysville, IN

Average rainfall days in August - Graysville, IN
  • Average rainfall days in August: 13.6 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (8.5 days).

Average snowfall in August
Graysville, IN

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

The month with the highest snowfall is January (2.13").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in August
Graysville, IN

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

The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Graysville, IN

Average daylight in August / Average sunshine in August - Graysville, 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 1min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).

Average sunshine days in August
Graysville, IN

Average sunshine days in August - Graysville, IN
  • Average sunshine days in August: 14.7 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.1 days).

Average UV index in August
Graysville, IN

Average UV index in August - Graysville, 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, November and December (UV index 2).

Average cloud cover in August
Graysville, IN

Average cloud cover in August - Graysville, IN
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in August
Graysville, IN

Average visibility in August - Graysville, IN
  • 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).

Graysville, Indiana, USA

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