August weather forecast
Antioch, IL

Weather in August

The last month of the summer, August, is also a moderately hot month in Antioch, Illinois, with average temperature varying between 77.5°F (25.3°C) and 61.5°F (16.4°C).

Temperature

In August, the average high-temperature is essentially the same as in July - a still warm 77.5°F (25.3°C). In Antioch, in August, the average low-temperature is 61.5°F (16.4°C).

Humidity

The average relative humidity in Antioch is 82%.

Rainfall

In Antioch, in August, during 16.3 rainfall days, 2.99" (76mm) of precipitation is typically accumulated. Throughout the year, in Antioch, there are 139.6 rainfall days, and 26.18" (665mm) of precipitation is accumulated.

Snowfall

In Antioch snow does not fall in June through September.

Daylight

In Antioch, the average length of the day in August is 13.8h.

Sunshine

July and August, with an average of 9.9h of sunshine, are months with the most sunshine.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to the Sun's UV rays for the average person.
Note: In August, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the average humidity in August in Antioch?

In Antioch, the average relative humidity in August is 82%.

How much does it rain in Antioch in August?

In August, in Antioch, Illinois, the rain falls for 16.3 days. Throughout August, 2.99" (76mm) of precipitation is accumulated.

When it does not snow in Antioch?

In Antioch, Illinois, snow does not fall in June through September.

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

The average length of the day in August in Antioch is 13.8h.

What is the month with the most sunshine in Antioch?

July and August, with an average of 9.9h of sunshine, are months with the most sunshine in Antioch.

How long on average sun shines in August in Antioch?

In Antioch, Illinois, the average sunshine in August is 9.9h.

When is the highest UV index in Antioch?

May through August, with an average maximum UV index of 5, are months with the highest UV index in Antioch.

What is the UV index intensity in August in Antioch?

In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV radiation.

Average temperature in August
Antioch, IL

Average temperature in August - Antioch, IL
  • Average high temperature in August: 77.5°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in August: 61.5°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).

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Average pressure in August
Antioch, IL

Average pressure in August - Antioch, IL
  • Average pressure in August: 29.97"

Months with the highest atmospheric pressure are January and February (30.1").
The month with the lowest atmospheric pressure is June (29.92").

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Average wind speed in August
Antioch, IL

Average wind speed in August - Antioch, IL
  • Average wind speed in August: 6.4mph

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

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Average humidity in August
Antioch, IL

Average humidity in August - Antioch, IL
  • Average humidity in August: 82%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (76%).

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Average rainfall in August
Antioch, IL

Average rainfall in August - Antioch, IL
  • Average rainfall in August: 2.99"

The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is December (1.06").

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Average rainfall days in August
Antioch, IL

Average rainfall days in August - Antioch, IL
  • Average rainfall days in August: 16.3 days

The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is February (3.4 days).

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Average snowfall in August
Antioch, IL

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

The month with the highest snowfall is January (4.33").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Antioch, IL

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

The month with the highest number of snowfall days is January (10.1 days).
Months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Antioch, IL
  • Average daylight in August: 13.8h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in August: 9.9h

Months with the most sunshine are July and August (Average sunshine: 9.9h).
Months with the least sunshine are January and February (Average sunshine: 3.6).

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Average sunshine days in August
Antioch, IL

Average sunshine days in August - Antioch, IL
  • Average sunshine days in August: 12.2 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (9.9 days).

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Average UV index in August
Antioch, IL

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

Months with the highest UV index are May, June, July and August (UV index 5).
Months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in August
Antioch, IL

Average cloud cover in August - Antioch, IL
  • Average cloud cover in August: 32

The month with the most cloud cover is January (Cloud cover 63).
Months with the least cloud cover are July, August and September (Cloud cover 32).

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Average visibility in August
Antioch, IL

Average visibility in August - Antioch, IL
  • Average visibility in August: 6mi

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

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