August weather forecast
Oconee, IL

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Weather in August

The last month of the summer, August, is another warm month in Oconee, Illinois, with an average temperature ranging between max 81.9°F (27.7°C) and min 64.9°F (18.3°C).

Temperature

The arrival of August brings an average high-temperature of a still moderately hot 81.9°F (27.7°C), subtly diverging from July's 83.1°F (28.4°C). Oconee's nights in August experience an average temperature drop to a refreshing 64.9°F (18.3°C).

Heat index

The heat index in August is evaluated at a hot 87.8°F (31°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially vital to children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.

Humidity

The average relative humidity in August in Oconee is 81%.

Rainfall

In August, the rain falls for 12.6 days. Throughout August, 1.61" (41mm) of precipitation is accumulated. Throughout the year, there are 129.9 rainfall days, and 17.6" (447mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In August, the average length of the day in Oconee is 13h and 40min.
On the first day of August, sunrise is at 5:57 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:28 pm CDT.

Sunshine

In August, the average sunshine is 9.9h.

UV index

The months with the highest UV index in Oconee are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In August, the maximum UV index of 6 suggests this advice:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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Frequently asked questions

What are August temperatures in Oconee?

The high-temperature during August is 81.9°F (27.7°C) and the low-temperature is 64.9°F (18.3°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 87.8°F (31°C).

What is the average humidity in August in Oconee?

The average relative humidity in August in Oconee, Illinois, is 81%.

How much does it rain in Oconee in August?

In August, the rain falls for 12.6 days. Throughout August, 1.61" (41mm) of precipitation is accumulated.

When it does not snow in Oconee?

May through October are months without snowfall in Oconee, Illinois.

How many hours of daylight does Oconee have in August?

In Oconee, the average day length in August is 13h and 40min.

When are sunrise and sunset in August in Oconee?

On the first day of August, sunrise is at 5:57 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:28 pm CDT.

How many hours of sunshine does Oconee have in August?

In August, the average sunshine duration is 9.9h.

When is the highest UV index in Oconee?

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

How high is the UV index in August in Oconee?

The average daily maximum UV index in August in Oconee, Illinois, is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health 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
Oconee, IL

Average temperature in August - Oconee, IL
  • Average high temperature in August: 81.9°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34.3°F).

  • Average low temperature in August: 64.9°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).

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Average pressure in August
Oconee, IL

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in August
Oconee, IL

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

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).

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Average humidity in August
Oconee, IL

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

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in August
Oconee, IL

Average rainfall in August - Oconee, IL
  • Average rainfall in August: 1.61"

The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are February and December (0.98").

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Average rainfall days in August
Oconee, IL

Average rainfall days in August - Oconee, IL
  • Average rainfall days in August: 12.6 days

The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (5.9 days).

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Average snowfall in August
Oconee, IL

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

The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Oconee, IL

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

The months with the highest number of snowfall days are January and February (6.3 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
Oconee, IL

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in August
Oconee, IL

Average sunshine days in August - Oconee, IL
  • Average sunshine days in August: 15.4 days

The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is May (13.1 days).

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Average UV index in August
Oconee, IL

Average UV index in August - Oconee, 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
Oconee, IL

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

The months with the most cloud cover are January and February (Cloud cover 54).
The months with the least cloud cover are June and September (Cloud cover 29).

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Average visibility in August
Oconee, IL

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

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

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Oconee, Illinois, USA

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