August weather forecast
Fairmount, IL

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Weather in August

August, the last month of the summer in Fairmount, is another warm month, with an average temperature ranging between max 80.6°F (27°C) and min 63.3°F (17.4°C).

Temperature

As August takes hold, the average high-temperature is a still warm 80.6°F (27°C), nearly mirroring that of the previous month. August brings Fairmount a consistent average low-temperature of 63.3°F (17.4°C).

Heat index

In August, the average heat index is computed to be a hot 86°F (30°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.

Humidity

The average relative humidity in August in Fairmount is 83%.

Rainfall

In Fairmount, during August, the rain falls for 14.6 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, in Fairmount, there are 151.8 rainfall days, and 25.63" (651mm) of precipitation is accumulated.

Snowfall

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

Daylight

In August, the average length of the day in Fairmount is 13h and 42min.
On the first day of the month, sunrise is at 5:50 am and sunset at 8:04 pm. On the last day of August, sunrise is at 6:18 am and sunset at 7:23 pm CDT.

Sunshine

In Fairmount, the average sunshine in August is 9.9h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Fairmount. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Enhance your sun protection with tightly woven, yet airy clothing.
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Frequently asked questions

What is the average August temperature in Fairmount?

August temperatures in Fairmount, Illinois, vary between a high-temperature of 80.6°F (27°C) and a low-temperature of 63.3°F (17.4°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is computed to be 86°F (30°C).

What is the average humidity in August in Fairmount?

In Fairmount, the average relative humidity in August is 83%.

How many days does it rain in August in Fairmount?

In August, the rain falls for 14.6 days. Throughout August, 2.24" (57mm) of precipitation is accumulated.

When it does not snow in Fairmount?

In Fairmount, Illinois, snow does not fall in May through October.

How many hours of daylight does Fairmount have in August?

The average day length in August in Fairmount is 13h and 42min.

When are sunrise and sunset in August in Fairmount?

In August, on the first day of the month, sunrise is at 5:50 am and sunset at 8:04 pm. On the last day of the month, in Fairmount, Illinois, sunrise is at 6:18 am and sunset at 7:23 pm CDT.

How long on average sun shines in August in Fairmount?

In August, the average sunshine duration is 9.9h.

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

June through August, with an average maximum UV index of 6, are months with the highest UV index in Fairmount, Illinois.

What is the UV index reading in August in Fairmount?

In August, the average daily maximum UV index in Fairmount, Illinois, is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
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
Fairmount, IL

Average temperature in August - Fairmount, IL
  • Average high temperature in August: 80.6°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in August: 63.3°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

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Average pressure in August
Fairmount, IL

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in August
Fairmount, IL

Average wind speed in August - Fairmount, IL
  • Average wind speed in August: 6.2mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

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Average humidity in August
Fairmount, IL

Average humidity in August - Fairmount, IL
  • Average humidity in August: 83%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in August
Fairmount, IL

Average rainfall in August - Fairmount, IL
  • Average rainfall in August: 2.24"

The wettest month (with the highest rainfall) is April (3.23").
The driest months (with the least rainfall) are February and September (1.38").

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Average rainfall days in August
Fairmount, IL

Average rainfall days in August - Fairmount, IL
  • Average rainfall days in August: 14.6 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (6.6 days).

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Average snowfall in August
Fairmount, IL

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

The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Fairmount, IL

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

The month with the highest number of snowfall days is January (10.6 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
Fairmount, IL

Average daylight in August / Average sunshine in August - Fairmount, IL
  • 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 24min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in August
Fairmount, IL

Average sunshine days in August - Fairmount, IL
  • Average sunshine days in August: 11.9 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (9.5 days).

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Average UV index in August
Fairmount, IL

Average UV index in August - Fairmount, IL
  • Average UV index in August: 6

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

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Average cloud cover in August
Fairmount, IL

Average cloud cover in August - Fairmount, IL
  • Average cloud cover in August: 32

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are June, August and September (Cloud cover 32).

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Average visibility in August
Fairmount, IL

Average visibility in August - Fairmount, IL
  • Average visibility in August: 5mi

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

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Fairmount, Illinois, USA

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