August weather forecast
Cleveland, IL

Share

Weather in August

August, the last month of the summer in Cleveland, is also a moderately hot month, with temperature in the range of an average low of 62.4°F (16.9°C) and an average high of 80.6°F (27°C).

Temperature

Cleveland records an average high-temperature of a still warm 80.6°F (27°C) as August arrives, nearly mirroring the previous month's climate. An average low-temperature of 62.4°F (16.9°C) marks the nights throughout August.

Heat index

For August, the heat index is evaluated at a tropical 86°F (30°C). Exposure and extended activity could potentially cause a state of fatigue and lead to heat cramps.
Understanding the heat index involves considering values for shaded locales with light wind. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

In August, the average relative humidity is 80%.

Rainfall

In Cleveland, Illinois, in August, it is raining for 10.7 days, with typically 0.71" (18mm) of accumulated precipitation. In Cleveland, Illinois, during the entire year, the rain falls for 99.4 days and collects up to 9.57" (243mm) of precipitation.

Snowfall

In Cleveland, snow does not fall in May through August.

Daylight

The average length of the day in August is 13h and 47min.
On the first day of August, sunrise is at 5:56 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:35 pm CDT.

Sunshine

In August, the average sunshine 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 health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high UV index of 5 in August translates into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Frequently asked questions

What are the temperatures in August?

The high-temperature during August is 80.6°F (27°C) and the low-temperature is 62.4°F (16.9°C). The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 86°F (30°C).

What is the average humidity in August?

In Cleveland, the average relative humidity in August is 80%.

How much does it rain in August?

In Cleveland, in August, it is raining for 10.7 days, with typically 0.71" (18mm) of accumulated precipitation.

When it does not snow?

May through August are months without snowfall.

Does it snow in August?

In Cleveland, in August, it doesn't snow. In September, it regularly snows.

How many hours of daylight does Cleveland have in August?

In Cleveland, the average day length in August is 13h and 47min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 5:56 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:35 pm CDT.

How many hours of sunshine does Cleveland have in August?

The average sunshine duration in August is 9.9h.

What is the UV index reading in August?

The average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Cleveland, IL

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

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28.2°F).

  • Average low temperature in August: 62.4°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).

Average pressure in August
Cleveland, IL

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in August
Cleveland, IL

Average wind speed in August - Cleveland, IL
  • Average wind speed in August: 6.7mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).

Average humidity in August
Cleveland, IL

Average humidity in August - Cleveland, IL
  • Average humidity in August: 80%

The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).

Average rainfall in August
Cleveland, IL

Average rainfall in August - Cleveland, IL
  • Average rainfall in August: 0.71"

The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is December (0.35").

Average rainfall days in August
Cleveland, IL

Average rainfall days in August - Cleveland, IL
  • Average rainfall days in August: 10.7 days

The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is January (3.2 days).

Average snowfall in August
Cleveland, IL

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

The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July and August (0").

Average snowfall days in August
Cleveland, IL

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

The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

Average daylight in August / Average sunshine in August - Cleveland, IL
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in August
Cleveland, IL

Average sunshine days in August - Cleveland, IL
  • Average sunshine days in August: 17.4 days

The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is June (14.4 days).

Average UV index in August
Cleveland, IL

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

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in August
Cleveland, IL

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

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in August
Cleveland, IL

Average visibility in August - Cleveland, 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).

Cleveland, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location