August weather forecast
Fairview Heights, OH

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Weather in August

The last month of the summer, August, is another warm month in Fairview Heights, Ohio, with an average temperature ranging between min 59.9°F (15.5°C) and max 81.9°F (27.7°C).

Temperature

The shift from July to August is characterized by an average high-temperature of a still warm 81.9°F (27.7°C), not significantly different from the 83.3°F (28.5°C) of July. Fairview Heights's average low-temperature for the month of August denotes a significant decline from the daily high, recording at a mild 59.9°F (15.5°C).

Heat index

The heat index in August is appraised at a tropical 87.8°F (31°C). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially crucial for babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.

Humidity

The months with the lowest humidity in Fairview Heights are April, July and August, with an average relative humidity of 77%.

Rainfall

In August, in Fairview Heights, Ohio, the rain falls for 16.9 days. Throughout August, 2.24" (57mm) of precipitation is accumulated. In Fairview Heights, during the entire year, the rain falls for 175.9 days and collects up to 31.22" (793mm) of precipitation.

Snowfall

June through September are months without snowfall in Fairview Heights.

Daylight

In August, the average length of the day in Fairview Heights, Ohio, is 13h and 44min.
On the first day of August, sunrise is at 6:20 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 7:55 pm EDT.

Sunshine

The months with the most sunshine in Fairview Heights are July and August, with an average of 10h of sunshine.

UV index

In Fairview Heights, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: An average maximum UV index of 5 in August leads to these recommendations:
Ensure safety - Sun damage prevention is strongly urged. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Fairview Heights in August?

In August, the average high-temperature and low-temperature in Fairview Heights are 81.9°F (27.7°C) and 59.9°F (15.5°C) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is appraised at 87.8°F (31°C).

What is the least humid month in Fairview Heights?

April, July and August, with an average relative humidity of 77%, are the least humid months in Fairview Heights, Ohio.

What is the average humidity in August in Fairview Heights?

The average relative humidity in August in Fairview Heights, Ohio, is 77%.

How many days does it rain in August in Fairview Heights?

In August, in Fairview Heights, the rain falls for 16.9 days. Throughout August, 2.24" (57mm) of precipitation is accumulated.

When it does not snow in Fairview Heights?

June through September are months without snowfall in Fairview Heights.

How many hours of daylight does Fairview Heights have in August?

The average day length in August in Fairview Heights, Ohio, is 13h and 44min.

When are sunrise and sunset in August in Fairview Heights?

In August, on the first day of the month, sunrise is at 6:20 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 7:55 pm EDT.

What is the month with the most sunshine in Fairview Heights?

The months with the most sunshine are July and August, with an average of 10h of sunshine.

How many hours of sunshine does Fairview Heights have in August?

The average sunshine duration in August in Fairview Heights, Ohio, is 10h.

What is the UV index intensity in August in Fairview Heights?

The average daily maximum UV index in August in Fairview Heights, Ohio, is 5. A UV Index value of 3 to 5 symbolizes a moderate 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
Fairview Heights, OH

Average temperature in August - Fairview Heights, OH
  • Average high temperature in August: 81.9°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 (33.1°F).

  • Average low temperature in August: 59.9°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in August
Fairview Heights, OH

Average pressure in August - Fairview Heights, OH
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
Fairview Heights, OH

Average wind speed in August - Fairview Heights, OH
  • Average wind speed in August: 4.7mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in August
Fairview Heights, OH

Average humidity in August - Fairview Heights, OH
  • Average humidity in August: 77%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (77%).

Average rainfall in August
Fairview Heights, OH

Average rainfall in August - Fairview Heights, OH
  • Average rainfall in August: 2.24"

The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is November (2.17").

Average rainfall days in August
Fairview Heights, OH

Average rainfall days in August - Fairview Heights, OH
  • Average rainfall days in August: 16.9 days

The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is February (9.4 days).

Average snowfall in August
Fairview Heights, OH

Average snowfall in August - Fairview Heights, OH
  • Average snowfall in August: 0"

The month with the highest snowfall is January (5").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Fairview Heights, OH

Average snowfall days in August - Fairview Heights, OH
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (15.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Fairview Heights, OH

Average daylight in August / Average sunshine in August - Fairview Heights, OH
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 10h and 0min

The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

Average sunshine days in August
Fairview Heights, OH

Average sunshine days in August - Fairview Heights, OH
  • Average sunshine days in August: 12.5 days

The month with the most sunshine days is November (15.5 days).
The months with the least sunshine days are January and May (8.8 days).

Average UV index in August
Fairview Heights, OH

Average UV index in August - Fairview Heights, OH
  • Average UV index in August: 5

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in August
Fairview Heights, OH

Average cloud cover in August - Fairview Heights, OH
  • Average cloud cover in August: 35

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in August
Fairview Heights, OH

Average visibility in August - Fairview Heights, OH
  • Average visibility in August: 5mi

The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January and February (4mi).

Fairview Heights, Ohio, USA

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