August weather forecast
Onarga, IL

Weather in August

August, the last month of the summer in Onarga, is also a moderately hot month, with an average temperature varying between 62.6°F (17°C) and 79.9°F (26.6°C).

Temperature

In Onarga, the average high-temperature in August is essentially the same as in July - a still warm 79.9°F (26.6°C). The average low-temperature, in Onarga, is 62.6°F (17°C).

Humidity

In Onarga, the average relative humidity in August is 84%.

Rainfall

In Onarga, Illinois, it is raining for 13 days, with typically 1.5" (38mm) of accumulated precipitation. In Onarga, Illinois, during the entire year, the rain falls for 130.7 days and collects up to 17.13" (435mm) of precipitation.

Snowfall

In Onarga, snow does not fall in May through October.

Daylight

The average length of the day in August in Onarga is 13h and 44min.
On the first day of the month, sunrise is at 5:48 am and sunset at 8:08 pm. On the last day of August, in Onarga, sunrise is at 6:18 am and sunset at 7:26 pm CDT.

Sunshine

In August, the average sunshine in Onarga is 9.7h.

UV index

In Onarga, Illinois, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 5 in August interpret into the following advice:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in August in Onarga?

In Onarga, Illinois, in August, the average high-temperature is 79.9°F (26.6°C), and the average low-temperature is 62.6°F (17°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in July is appraised at 87.8°F (31°C).

What is the average humidity in August in Onarga?

In Onarga, Illinois, the average relative humidity in August is 84%.

How many days does it rain in August in Onarga?

In Onarga, in August, during 13 rainfall days, 1.5" (38mm) of precipitation is typically accumulated.

When it does not snow in Onarga?

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

How many hours of daylight does Onarga have in August?

In August, the average day length in Onarga, Illinois, is 13h and 44min.

When is the sunrise / sunset in August in Onarga?

In August, on the first day of the month, sunrise is at 5:48 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:26 pm CDT.

How many hours of sunshine does Onarga have in August?

The average sunshine duration in August in Onarga is 9.7h.

What is the UV index intensity in August in Onarga?

In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Onarga, IL

Average temperature in August - Onarga, IL
  • Average high temperature in August: 79.9°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.7°F).

  • Average low temperature in August: 62.6°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).

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Average pressure in August
Onarga, IL

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in August
Onarga, IL

Average wind speed in August - Onarga, IL
  • Average wind speed in August: 6.3mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

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Average humidity in August
Onarga, IL

Average humidity in August - Onarga, IL
  • Average humidity in August: 84%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
Onarga, IL

Average rainfall in August - Onarga, IL
  • Average rainfall in August: 1.5"

The wettest month (with the highest rainfall) is May (2.44").
The driest months (with the least rainfall) are January, February and December (0.91").

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Average rainfall days in August
Onarga, IL

Average rainfall days in August - Onarga, IL
  • Average rainfall days in August: 13 days

The month with the highest number of rainy days is May (17.3 days).
The months with the least rainy days are January and February (5.5 days).

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Average snowfall in August
Onarga, IL

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

The month with the highest snowfall is February (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Onarga, IL

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

The month with the highest number of snowfall days is January (9.6 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
Onarga, IL

Average daylight in August / Average sunshine in August - Onarga, IL
  • Average daylight in August: 13h and 44min

The month with the longest days is June (Average daylight: 15h and 2min).
The month with the shortest days is December (Average daylight: 9h and 19min).

  • Average sunshine in August: 9h and 42min

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in August
Onarga, IL

Average sunshine days in August - Onarga, IL
  • Average sunshine days in August: 14.3 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (11.4 days).

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Average UV index in August
Onarga, IL

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

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in August
Onarga, IL

Average cloud cover in August - Onarga, IL
  • Average cloud cover in August: 33

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 33).

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Average visibility in August
Onarga, IL

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

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

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