August weather forecast
Deer Park, IL

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Weather in August

The last month of the summer, August, is also a moderately hot month in Deer Park, Illinois, with temperature in the range of an average high of 79.3°F (26.3°C) and an average low of 63.5°F (17.5°C).

Temperature

The commencement of August brings an average high-temperature of a still warm 79.3°F (26.3°C), marking an inconsequential divergence from July. Nightly temperatures drop to an average low of 63.5°F (17.5°C) in August.

Humidity

In Deer Park, the average relative humidity in August is 78%.

Rainfall

In Deer Park, in August, it is raining for 16.9 days, with typically 3.11" (79mm) of accumulated precipitation. Throughout the year, in Deer Park, Illinois, there are 163.1 rainfall days, and 32.24" (819mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 50min.
On the first day of August in Deer Park, sunrise is at 5:46 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:27 pm CDT.

Sunshine

July and August, with an average of 10.1h of sunshine, are months with the most sunshine.

UV index

July and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: A daily high UV index of 6 in August leads to these guidelines:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
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Frequently asked questions

What is the usual temperature for Deer Park in August?

Deer Park in August has an average high-temperature of 79.3°F (26.3°C) and an average low-temperature of 63.5°F (17.5°C). In July, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 86°F (30°C).

What is the average humidity in August in Deer Park?

The average relative humidity in August is 78%.

How much does it rain in Deer Park in August?

In August, in Deer Park, Illinois, the rain falls for 16.9 days. Throughout August, 3.11" (79mm) of precipitation is accumulated.

When it does not snow in Deer Park?

June through September are months without snowfall in Deer Park, Illinois.

How many hours of daylight does Deer Park have in August?

In August, the average day length is 13h and 50min.

When is the sunrise / sunset in August in Deer Park?

On the first day of August in Deer Park, sunrise is at 5:46 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:27 pm CDT.

What are the months with the most sunshine in Deer Park?

July and August, with an average of 10.1h of sunshine, are months with the most sunshine in Deer Park, Illinois.

How long on average sun shines in August in Deer Park?

In Deer Park, the average sunshine duration in August is 10.1h.

When is the highest UV index in Deer Park?

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

How high is the UV index in August in Deer Park?

The average daily maximum UV index in August in Deer Park, Illinois, is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to UV radiation.
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
Deer Park, IL

Average temperature in August - Deer Park, IL
  • Average high temperature in August: 79.3°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (27.7°F).

  • Average low temperature in August: 63.5°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.3°F).

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Average pressure in August
Deer Park, IL

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in August
Deer Park, IL

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

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

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Average humidity in August
Deer Park, IL

Average humidity in August - Deer Park, IL
  • Average humidity in August: 78%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in August
Deer Park, IL

Average rainfall in August - Deer Park, IL
  • Average rainfall in August: 3.11"

The wettest month (with the highest rainfall) is June (4.13").
The driest month (with the least rainfall) is November (1.61").

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Average rainfall days in August
Deer Park, IL

Average rainfall days in August - Deer Park, IL
  • Average rainfall days in August: 16.9 days

The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is February (5.7 days).

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Average snowfall in August
Deer Park, IL

Average snowfall in August - Deer Park, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is February (6.22").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Deer Park, IL

Average snowfall days in August - Deer Park, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (15.5 days).
The 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
Deer Park, IL

Average daylight in August / Average sunshine in August - Deer Park, IL
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in August: 10h and 1min

The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in August
Deer Park, IL

Average sunshine days in August - Deer Park, IL
  • Average sunshine days in August: 11.2 days

The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is June (8.4 days).

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Average UV index in August
Deer Park, IL

Average UV index in August - Deer Park, IL
  • Average UV index in August: 6

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in August
Deer Park, IL

Average cloud cover in August - Deer Park, IL
  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July, August and September (Cloud cover 31).

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Average visibility in August
Deer Park, IL

Average visibility in August - Deer Park, IL
  • Average visibility in August: 6mi

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

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Deer Park, Illinois, USA

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