August weather forecast
Goreville, IL

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Weather in August

August, the last month of the summer in Goreville, is also a hot month, with an average temperature fluctuating between 66.7°F (19.3°C) and 86.5°F (30.3°C).

Temperature

Goreville experiences an average high-temperature of a still hot 86.5°F (30.3°C) in August, marking an insignificant shift from 88°F (31.1°C) in July. Goreville experiences an average low-temperature of 66.7°F (19.3°C) in month of August.

Heat index

August's average heat index is calculated to be a sweltering 98.6°F (37°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In August, the average relative humidity is 76%.

Rainfall

In August, the rain falls for 11.9 days. Throughout August, 1.3" (33mm) of precipitation is accumulated. Throughout the year, in Goreville, Illinois, there are 118.3 rainfall days, and 13.03" (331mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Goreville.

Daylight

The average length of the day in August is 13h and 34min.
On the first day of August in Goreville, sunrise is at 6:00 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:25 pm CDT.

Sunshine

The average sunshine in August in Goreville is 10.3h.

UV index

The months with the highest UV index in Goreville, Illinois, are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 6 in August translates into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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Frequently asked questions

How hot is August in Goreville?

Goreville in August has an average high-temperature of 86.5°F (30.3°C) and an average low-temperature of 66.7°F (19.3°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in August is calculated to be 98.6°F (37°C).

What is the average humidity in August in Goreville?

The average relative humidity in August is 76%.

How many days does it rain in August in Goreville?

In Goreville, Illinois, in August, it is raining for 11.9 days, with typically 1.3" (33mm) of accumulated precipitation.

When it does not snow in Goreville?

In Goreville, snow does not fall in April through October.

How many hours of daylight does Goreville have in August?

In August, the average day length in Goreville, Illinois, is 13h and 34min.

What time are sunrise and sunset in August in Goreville?

On the first day of August, sunrise is at 6:00 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:25 pm CDT.

How many hours of sunshine does Goreville have in August?

In Goreville, Illinois, the average sunshine duration in August is 10.3h.

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

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

How high is the UV index in August in Goreville?

In August, the average daily maximum UV index is 6. A UV Index 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
Goreville, IL

Average temperature in August - Goreville, IL
  • Average high temperature in August: 86.5°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in August: 66.7°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).

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Average pressure in August
Goreville, IL

Average pressure in August - Goreville, IL
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in August
Goreville, IL

Average wind speed in August - Goreville, IL
  • Average wind speed in August: 5.7mph

The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in August
Goreville, IL

Average humidity in August - Goreville, IL
  • Average humidity in August: 76%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
Goreville, IL

Average rainfall in August - Goreville, IL
  • Average rainfall in August: 1.3"

The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is September (0.47").

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Average rainfall days in August
Goreville, IL

Average rainfall days in August - Goreville, IL
  • Average rainfall days in August: 11.9 days

The month with the highest number of rainy days is July (13.1 days).
The months with the least rainy days are January, February and December (7.3 days).

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Average snowfall in August
Goreville, IL

Average snowfall in August - Goreville, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in August
Goreville, IL

Average snowfall days in August - Goreville, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (3.3 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
Goreville, IL

Average daylight in August / Average sunshine in August - Goreville, IL
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in August: 10h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

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Average sunshine days in August
Goreville, IL

Average sunshine days in August - Goreville, IL
  • Average sunshine days in August: 16.3 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (14.8 days).

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Average UV index in August
Goreville, IL

Average UV index in August - Goreville, IL
  • 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
Goreville, IL

Average cloud cover in August - Goreville, IL
  • Average cloud cover in August: 30

The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).

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Average visibility in August
Goreville, IL

Average visibility in August - Goreville, IL
  • 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).

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Goreville, Illinois, USA

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