August weather forecast
Delrey, IL

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Weather in August

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

Temperature

August's weather displays an average high-temperature of a still warm 79.9°F (26.6°C), slightly varied from July's 81°F (27.2°C). Throughout August, an average nighttime temperature of 62.6°F (17°C) is experienced in Delrey.

Humidity

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

Rainfall

In August, in Delrey, the rain falls for 13 days. Throughout August, 1.5" (38mm) of precipitation is accumulated. In Delrey, during the entire year, the rain falls for 130.7 days and collects up to 17.13" (435mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In August, the average length of the day in Delrey, Illinois, is 13h and 44min.
On the first day of August, sunrise is at 5:49 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:25 pm CDT.

Sunshine

The average sunshine in August is 9.7h.

UV index

The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum UV index of 5 in August translates into the following recommendations:
Be vigilant - Preventing sunburn is recommended. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
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Frequently asked questions

What are August temperatures in Delrey?

The average high-temperature, in August, in Delrey, is 79.9°F (26.6°C), while the average low-temperature is 62.6°F (17°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is computed to be 87.8°F (31°C).

What is the average humidity in August in Delrey?

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

How many days does it rain in August in Delrey?

In Delrey, Illinois, during August, the rain falls for 13 days and regularly aggregates up to 1.5" (38mm) of precipitation.

When it does not snow in Delrey?

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

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

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

What time are sunrise and sunset in August in Delrey?

On the first day of August in Delrey, sunrise is at 5:49 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:25 pm CDT.

How many hours of sunshine does Delrey have in August?

In Delrey, Illinois, the average sunshine duration in August is 9.7h.

How high is the UV index in August in Delrey?

The average daily maximum UV index in August in Delrey is 5. A UV Index value of 3 to 5 symbolizes a medium 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
Delrey, IL

Average temperature in August - Delrey, 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
Delrey, IL

Average pressure in August - Delrey, 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
Delrey, IL

Average wind speed in August - Delrey, 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
Delrey, IL

Average humidity in August - Delrey, 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
Delrey, IL

Average rainfall in August - Delrey, 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
Delrey, IL

Average rainfall days in August - Delrey, 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
Delrey, IL

Average snowfall in August - Delrey, 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
Delrey, IL

Average snowfall days in August - Delrey, 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
Delrey, IL

Average daylight in August / Average sunshine in August - Delrey, IL
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 9h and 4min

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
Delrey, IL

Average sunshine days in August - Delrey, 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
Delrey, IL

Average UV index in August - Delrey, 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
Delrey, IL

Average cloud cover in August - Delrey, 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
Delrey, IL

Average visibility in August - Delrey, 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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Delrey, Illinois, USA

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