August weather forecast
Okawville, IL

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Weather in August

August, the last month of the summer in Okawville, is also a moderately hot month, with an average temperature ranging between max 84.4°F (29.1°C) and min 66°F (18.9°C).

Temperature

The onset of August brings with it an average high-temperature of a moderately hot 84.4°F (29.1°C), showing a negligible variation from the month before. During the month of August, the temperature in Okawville falls to an average of 66°F (18.9°C).

Heat index

For most parts of August, the heat index is appraised at a very hot 95°F (35°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

In Okawville, the average relative humidity in August is 79%.

Rainfall

In August, the rain falls for 15.4 days. Throughout August, 3.31" (84mm) of precipitation is accumulated. Throughout the year, there are 166.8 rainfall days, and 37.83" (961mm) of precipitation is accumulated.

Snowfall

May through August and October are months without snowfall in Okawville.

Daylight

In Okawville, the average length of the day in August is 13h and 37min.
On the first day of the month, sunrise is at 6:00 am and sunset at 8:08 pm. On the last day of August, in Okawville, Illinois, sunrise is at 6:27 am and sunset at 7:29 pm CDT.

Sunshine

The average sunshine in August is 10.1h.

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 health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A typical high UV index of 6 in August suggests the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
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Frequently asked questions

How hot is it in Okawville in August?

In August, the average high-temperature and low-temperature in Okawville are 84.4°F (29.1°C) and 66°F (18.9°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), 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 Okawville?

The average relative humidity in August in Okawville is 79%.

How many days does it rain in August in Okawville?

In Okawville, Illinois, in August, during 15.4 rainfall days, 3.31" (84mm) of precipitation is typically accumulated.

When it does not snow in Okawville?

In Okawville, Illinois, snow does not fall in May through August and October.

Does it snow in Okawville in August?

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

What is the average length of the day in August in Okawville?

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

When are sunrise and sunset in August in Okawville?

In August, on the first day of the month, sunrise is at 6:00 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:29 pm CDT.

How long on average sun shines in August in Okawville?

In Okawville, Illinois, the average sunshine duration in August is 10.1h.

What are the months with the highest UV index in Okawville?

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

What is the UV index reading in August in Okawville?

The average daily maximum UV index in August in Okawville, Illinois, is 6. A UV Index estimate of 6 to 7 represents a high hazard to health 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
Okawville, IL

Average temperature in August - Okawville, IL
  • Average high temperature in August: 84.4°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in August: 66°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (25°F).

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Average pressure in August
Okawville, IL

Average pressure in August - Okawville, 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 (29.93"Hg).

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Average wind speed in August
Okawville, IL

Average wind speed in August - Okawville, IL
  • Average wind speed in August: 5.8mph

The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).

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Average humidity in August
Okawville, IL

Average humidity in August - Okawville, IL
  • Average humidity in August: 79%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
Okawville, IL

Average rainfall in August - Okawville, IL
  • Average rainfall in August: 3.31"

The wettest month (with the highest rainfall) is April (4.45").
The driest month (with the least rainfall) is February (2.01").

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Average rainfall days in August
Okawville, IL

Average rainfall days in August - Okawville, IL
  • Average rainfall days in August: 15.4 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is December (9.2 days).

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Average snowfall in August
Okawville, IL

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

The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August and October (0").

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Average snowfall days in August
Okawville, IL

Average snowfall days in August - Okawville, 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 and August (0 days).

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

Average daylight in August / Average sunshine in August - Okawville, 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 1min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in August
Okawville, IL

Average sunshine days in August - Okawville, IL
  • Average sunshine days in August: 12 days

The months with the most sunshine days are October and November (17.5 days).
The month with the least sunshine days is May (9.3 days).

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Average UV index in August
Okawville, IL

Average UV index in August - Okawville, 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).

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Average cloud cover in August
Okawville, IL

Average cloud cover in August - Okawville, IL
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 28).

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Average visibility in August
Okawville, IL

Average visibility in August - Okawville, 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).

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Okawville, Illinois, USA

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