August weather forecast
Downs, IL

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Weather in August

The last month of the summer, August, is also a moderately hot month in Downs, Illinois, with temperature in the range of an average high of 79.9°F (26.6°C) and an average low of 63.1°F (17.3°C).

Temperature

Downs's shift into August sets the average high-temperature at a still warm 79.9°F (26.6°C), a figure that deviates only slightly from July's 80.8°F (27.1°C). In August, Downs's temperature tends to fall to an average low of 63.1°F (17.3°C) during the night.

Humidity

In Downs, the average relative humidity in August is 83%.

Rainfall

In Downs, in August, during 13.7 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. In Downs, during the entire year, the rain falls for 139 days and collects up to 20.83" (529mm) of precipitation.

Snowfall

May through October are months without snowfall in Downs.

Daylight

In Downs, the average length of the day in August is 13h and 43min.
On the first day of the month, sunrise is at 5:53 am and sunset at 8:09 pm. On the last day of August, in Downs, sunrise is at 6:22 am and sunset at 7:28 pm CDT.

Sunshine

The average sunshine in August is 9.8h.

UV index

In Downs, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 5 in August translates into this advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

What is the average August temperature in Downs?

The high-temperature in Downs, Illinois, during August is 79.9°F (26.6°C) and the low-temperature is 63.1°F (17.3°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in July is calculated to be 86°F (30°C).

What is the average humidity in August in Downs?

In August, the average relative humidity in Downs is 83%.

How much does it rain in Downs in August?

In Downs, in August, during 13.7 rainfall days, 1.85" (47mm) of precipitation is typically accumulated.

When it does not snow in Downs?

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

How many hours of daylight does Downs have in August?

The average day length in August is 13h and 43min.

When are sunrise and sunset in August in Downs?

In August, on the first day of the month, sunrise is at 5:53 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:28 pm CDT.

How many hours of sunshine does Downs have in August?

The average sunshine duration in August in Downs, Illinois, is 9.8h.

How high is the UV index in August in Downs?

In Downs, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Downs, IL

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

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in August: 63.1°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 (19.6°F).

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Average pressure in August
Downs, IL

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in August
Downs, IL

Average wind speed in August - Downs, IL
  • Average wind speed in August: 6.5mph

The windiest month (with the highest average wind speed) is January (11mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

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Average humidity in August
Downs, IL

Average humidity in August - Downs, IL
  • Average humidity in August: 83%

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
Downs, IL

Average rainfall in August - Downs, IL
  • Average rainfall in August: 1.85"

The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is December (1.1").

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Average rainfall days in August
Downs, IL

Average rainfall days in August - Downs, IL
  • Average rainfall days in August: 13.7 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (5.8 days).

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Average snowfall in August
Downs, IL

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

The month with the highest snowfall is January (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Downs, IL

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

The month with the highest number of snowfall days is January (9.8 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
Downs, IL

Average daylight in August / Average sunshine in August - Downs, 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 5min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in August
Downs, IL

Average sunshine days in August - Downs, IL
  • Average sunshine days in August: 13.9 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is June (10.3 days).

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Average UV index in August
Downs, IL

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in August
Downs, IL

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

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 31).

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Average visibility in August
Downs, IL

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

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