August weather forecast
Oconee, IL

Share

Weather in August

The last month of the summer, August, is also a moderately hot month in Oconee, Illinois, with an average temperature varying between 81.9°F (27.7°C) and 64.9°F (18.3°C).

Temperature

August experiences an average high-temperature of a still warm 81.9°F (27.7°C), barely different from July's 83.1°F (28.4°C). Oconee sees an average low-temperature of 64.9°F (18.3°C) during August.

Heat index

In August, the heat index is evaluated at a hot 87.8°F (31°C). If one remains active during constant exposure, it might cause exhaustion and heat cramps.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

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

Sunshine

In August, the average sunshine is 9.9h.

UV index

June 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 health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 6 in August converts into the following recommendations:
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. Experience reduced UV exposure by about half when donning a wide-brim hat.
Updated: Jun 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Oconee in August?

The high-temperature, in August, in Oconee, is 81.9°F (27.7°C), while the low-temperature averages to 64.9°F (18.3°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is evaluated at 87.8°F (31°C).

What is the average humidity in August?

The average relative humidity in August is 81%.

How much does it rain in August?

In Oconee, Illinois, in August, during 12.6 rainfall days, 1.61" (41mm) of precipitation is typically accumulated.

When it does not snow?

May through October are months without snowfall.

What is the average length of the day in August?

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 in Oconee is 9.9h.

When is the highest UV index?

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

What is the UV index intensity in August?

In Oconee, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk from 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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Oconee, Illinois, USA

Weather forecast for your location

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