August weather forecast
Fairmont City, IL

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Weather in August

The last month of the summer, August, is also a moderately hot month in Fairmont City, Illinois, with an average temperature varying between 85.1°F (29.5°C) and 66.7°F (19.3°C).

Temperature

As Fairmont City welcomes August, the average high-temperature is noted at a moderately hot 85.1°F (29.5°C), closely aligning with the preceding month. In the month of August, Fairmont City's average low-temperature falls to a comfortable 66.7°F (19.3°C).

Heat index

During August, the heat index is appraised at a sweltering 95°F (35°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. 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.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

In Fairmont City, the average relative humidity in August is 77%.

Rainfall

In Fairmont City, in August, it is raining for 13.8 days, with typically 3.43" (87mm) of accumulated precipitation. Throughout the year, in Fairmont City, there are 154.5 rainfall days, and 35.51" (902mm) of precipitation is accumulated.

Snowfall

In Fairmont City, Illinois, snow does not fall in April through October.

Daylight

In August, the average length of the day in Fairmont City is 13h and 37min.
On the first day of the month, sunrise is at 6:02 am and sunset at 8:10 pm. On the last day of August, sunrise is at 6:29 am and sunset at 7:31 pm CDT.

Sunshine

In Fairmont City, the average sunshine in August is 10.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 6 in August translates into this advice:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Fairmont City in August?

In August, in Fairmont City, the average high-temperature is 85.1°F (29.5°C), and the average low-temperature is 66.7°F (19.3°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in August is appraised at 95°F (35°C).

What is the average humidity in August in Fairmont City?

The average relative humidity in August in Fairmont City, Illinois, is 77%.

How much does it rain in Fairmont City in August?

In Fairmont City, in August, it is raining for 13.8 days, with typically 3.43" (87mm) of accumulated precipitation.

When it does not snow in Fairmont City?

April through October are months without snowfall in Fairmont City.

What is the average length of the day in August in Fairmont City?

In Fairmont City, Illinois, the average day length in August is 13h and 37min.

When are sunrise and sunset in August in Fairmont City?

In August, on the first day of the month, sunrise is at 6:02 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:31 pm CDT.

How long on average sun shines in August in Fairmont City?

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

What is the month with the highest UV index in Fairmont City?

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

What is the UV index reading in August in Fairmont City?

In August, the average daily maximum UV index in Fairmont City is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's 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
Fairmont City, IL

Average temperature in August - Fairmont City, IL
  • Average high temperature in August: 85.1°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.8°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 (24.4°F).

Average pressure in August
Fairmont City, IL

Average pressure in August - Fairmont City, 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 (29.92"Hg).

Average wind speed in August
Fairmont City, IL

Average wind speed in August - Fairmont City, IL
  • Average wind speed in August: 5.6mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).

Average humidity in August
Fairmont City, IL

Average humidity in August - Fairmont City, IL
  • Average humidity in August: 77%

The months with the highest relative humidity are May and July (78%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August
Fairmont City, IL

Average rainfall in August - Fairmont City, IL
  • Average rainfall in August: 3.43"

The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is February (1.89").

Average rainfall days in August
Fairmont City, IL

Average rainfall days in August - Fairmont City, IL
  • Average rainfall days in August: 13.8 days

The months with the highest number of rainy days are May and July (17.5 days).
The month with the least rainy days is January (8 days).

Average snowfall in August
Fairmont City, IL

Average snowfall in August - Fairmont City, IL
  • Average snowfall in August: 0"

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

Average snowfall days in August
Fairmont City, IL

Average snowfall days in August - Fairmont City, IL
  • 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 and September (0 days).

Average daylight in August /
Average sunshine in August
Fairmont City, IL

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 2min

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

Average sunshine days in August
Fairmont City, IL

Average sunshine days in August - Fairmont City, IL
  • Average sunshine days in August: 14.8 days

The month with the most sunshine days is December (18.8 days).
The month with the least sunshine days is May (11.2 days).

Average UV index in August
Fairmont City, IL

Average UV index in August - Fairmont City, 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).

Average cloud cover in August
Fairmont City, IL

Average cloud cover in August - Fairmont City, IL
  • Average cloud cover in August: 27

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in August
Fairmont City, IL

Average visibility in August - Fairmont City, 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).

Fairmont City, Illinois, USA

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