August weather forecast
Trivoli, IL

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Weather in August

August, the last month of the summer in Trivoli, is another warm month, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 63.3°F (17.4°C).

Temperature

Upon the beginning of August, Trivoli's high-temperatures register at a still warm 81.1°F (27.3°C), closely mirroring the preceding month. Trivoli reports an average low-temperature of 63.3°F (17.4°C) during the nights of August.

Heat index

August's mean heat index is evaluated at a hot 87.8°F (31°C). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.
The standards for the heat index are set for locations in shade and under light breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. 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 extremely significant for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.

Humidity

In August, the average relative humidity is 81%.

Rainfall

In Trivoli, during August, the rain falls for 13.7 days and regularly aggregates up to 1.89" (48mm) of precipitation. Throughout the year, there are 145.3 rainfall days, and 28.62" (727mm) of precipitation is accumulated.

Snowfall

In Trivoli, snow does not fall in May through September.

Daylight

The average length of the day in August is 13h and 44min.
On the first day of August, sunrise is at 5:57 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:32 pm CDT.

Sunshine

The average sunshine in August is 9.9h.

UV index

The average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 5 during August translates into the following directions:
Take necessary precautions - Defending against sun damage is advocated. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Updated: Jun 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature?

The average high-temperature, in August, in Trivoli, is 81.1°F (27.3°C), while the average low-temperature is 63.3°F (17.4°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is evaluated at 87.8°F (31°C).

What is the average humidity in August?

In August, the average relative humidity is 81%.

How many days does it rain in August?

In Trivoli, in August, it is raining for 13.7 days, with typically 1.89" (48mm) of accumulated precipitation.

When it does not snow in Trivoli?

In Trivoli, snow does not fall in May through September.

How many hours of daylight does Trivoli have in August?

In August, the average day length in Trivoli is 13h and 44min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:57 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:32 pm CDT.

How long on average sun shines in August?

The average sunshine duration in August is 9.9h.

How high is the UV index in August?

In Trivoli, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate health threat 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
Trivoli, IL

Average temperature in August - Trivoli, IL
  • Average high temperature in August: 81.1°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (30.4°F).

  • Average low temperature in August: 63.3°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure in August
Trivoli, IL

Average pressure in August - Trivoli, IL
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in August
Trivoli, IL

Average wind speed in August - Trivoli, IL
  • Average wind speed in August: 6.6mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

Average humidity in August
Trivoli, IL

Average humidity in August - Trivoli, IL
  • Average humidity in August: 81%

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

Average rainfall in August
Trivoli, IL

Average rainfall in August - Trivoli, IL
  • Average rainfall in August: 1.89"

The wettest month (with the highest rainfall) is May (4.29").
The driest months (with the least rainfall) are February and December (1.42").

Average rainfall days in August
Trivoli, IL

Average rainfall days in August - Trivoli, IL
  • Average rainfall days in August: 13.7 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (5.8 days).

Average snowfall in August
Trivoli, IL

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

The month with the highest snowfall is January (3.78").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Trivoli, IL

Average snowfall days in August - Trivoli, 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).

Average daylight in August /
Average sunshine in August
Trivoli, IL

Average daylight in August / Average sunshine in August - Trivoli, 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 18min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in August
Trivoli, IL

Average sunshine days in August - Trivoli, IL
  • Average sunshine days in August: 15.5 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (11.3 days).

Average UV index in August
Trivoli, IL

Average UV index in August - Trivoli, IL
  • Average UV index in August: 5

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

Average cloud cover in August
Trivoli, IL

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

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 29).

Average visibility in August
Trivoli, IL

Average visibility in August - Trivoli, 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).

Trivoli, Illinois, USA

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