August weather forecast
Crescent City, IL

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Weather in August

August, the last month of the summer in Crescent City, is another warm month, with an average temperature fluctuating between 79.9°F (26.6°C) and 62.6°F (17°C).

Temperature

With August's arrival, Crescent City, Illinois, notes an average high-temperature of a still warm 79.9°F (26.6°C), closely following the trend of the preceding month. During the nights in August, Crescent City experiences a consistent average temperature of 62.6°F (17°C).

Humidity

The average relative humidity in August in Crescent City is 84%.

Rainfall

In Crescent City, during August, the rain falls for 13 days and regularly aggregates up to 1.5" (38mm) of precipitation. In Crescent City, Illinois, during the entire year, the rain falls for 130.7 days and collects up to 17.13" (435mm) of precipitation.

Snowfall

In Crescent City, Illinois, snow does not fall in May through October.

Daylight

In August, the average length of the day in Crescent City is 13h and 45min.
On the first day of August, sunrise is at 5:48 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:24 pm CDT.

Sunshine

In Crescent City, the average sunshine in August is 9.7h.

UV index

In Crescent City, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In August, a regular UV index of 5 translates into these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
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Frequently asked questions

What is the average August temperature in Crescent City?

August temperatures in Crescent City vary between a high-temperature of 79.9°F (26.6°C) and a low-temperature of 62.6°F (17°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), 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 Crescent City?

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

How much does it rain in Crescent City in August?

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

When it does not snow in Crescent City?

May through October are months without snowfall.

What is the average length of the day in August in Crescent City?

In Crescent City, the average day length in August is 13h and 45min.

When are sunrise and sunset in August in Crescent City?

In August, on the first day of the month, sunrise is at 5:48 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:24 pm CDT.

How long on average sun shines in August in Crescent City?

The average sunshine duration in August is 9.7h.

What is the UV index reading in August in Crescent City?

In Crescent City, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's 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
Crescent City, IL

Average temperature in August - Crescent City, 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
Crescent City, IL

Average pressure in August - Crescent City, 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
Crescent City, IL

Average wind speed in August - Crescent City, 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
Crescent City, IL

Average humidity in August - Crescent City, 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
Crescent City, IL

Average rainfall in August - Crescent City, 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
Crescent City, IL

Average rainfall days in August - Crescent City, 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
Crescent City, IL

Average snowfall in August - Crescent City, 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
Crescent City, IL

Average snowfall days in August - Crescent City, 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
Crescent City, IL

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

The month with the longest days is June (Average daylight: 15h and 6min).
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
Crescent City, IL

Average sunshine days in August - Crescent City, 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
Crescent City, IL

Average UV index in August - Crescent City, 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
Crescent City, IL

Average cloud cover in August - Crescent City, 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
Crescent City, IL

Average visibility in August - Crescent City, 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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Crescent City, Illinois, USA

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