August weather forecast
Henry, IL

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Weather in August

August, the last month of the summer in Henry, is also a moderately hot month, with an average temperature fluctuating between 80.1°F (26.7°C) and 62.2°F (16.8°C).

Temperature

Entering August, the average high-temperature is recorded at a still warm 80.1°F (26.7°C), exhibiting a minimal shift from July's 81°F (27.2°C). In Henry, August nights cool down to an average of 62.2°F (16.8°C).

Humidity

The average relative humidity in August in Henry is 83%.

Rainfall

In Henry, Illinois, in August, it is raining for 14.7 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, in Henry, Illinois, there are 151.3 rainfall days, and 30.16" (766mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In Henry, the average length of the day in August is 13h and 46min.
On the first day of the month, sunrise is at 5:53 am and sunset at 8:13 pm. On the last day of August, in Henry, sunrise is at 6:23 am and sunset at 7:31 pm CDT.

Sunshine

In Henry, the average sunshine in August is 9.8h.

UV index

In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index, 5 during August, leads to the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Frequently asked questions

What is the temperature in August in Henry?

The average high-temperature, in August, in Henry, is 80.1°F (26.7°C), while the average low-temperature is 62.2°F (16.8°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in July is appraised at 87.8°F (31°C).

What is the average humidity in August in Henry?

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

How many days does it rain in August in Henry?

In Henry, Illinois, during August, the rain falls for 14.7 days and regularly aggregates up to 2.24" (57mm) of precipitation.

When it does not snow in Henry?

In Henry, snow does not fall in May through September.

How many hours of daylight does Henry have in August?

In August, the average day length in Henry, Illinois, is 13h and 46min.

What time are sunrise and sunset in August in Henry?

On the first day of August in Henry, Illinois, sunrise is at 5:53 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:31 pm CDT.

How long on average sun shines in August in Henry?

The average sunshine duration in August is 9.8h.

What is the UV index intensity in August in Henry?

The average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
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
Henry, IL

Average temperature in August - Henry, IL
  • Average high temperature in August: 80.1°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.3°F).

  • Average low temperature in August: 62.2°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

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Average pressure in August
Henry, IL

Average pressure in August - Henry, 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 (29.91"Hg).

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Average wind speed in August
Henry, IL

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

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

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Average humidity in August
Henry, IL

Average humidity in August - Henry, 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 (72%).

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Average rainfall in August
Henry, IL

Average rainfall in August - Henry, IL
  • Average rainfall in August: 2.24"

The wettest month (with the highest rainfall) is May (4.41").
The driest months (with the least rainfall) are January and December (1.57").

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Average rainfall days in August
Henry, IL

Average rainfall days in August - Henry, IL
  • Average rainfall days in August: 14.7 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (5.9 days).

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Average snowfall in August
Henry, IL

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

The month with the highest snowfall is February (3.7").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Henry, IL

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

The month with the highest number of snowfall days is January (11.2 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
Henry, IL

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

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 5min

The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in August
Henry, IL

Average sunshine days in August - Henry, IL
  • Average sunshine days in August: 14.7 days

The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is May (10.7 days).

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Average UV index in August
Henry, IL

Average UV index in August - Henry, 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 January (UV index 1).

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Average cloud cover in August
Henry, IL

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

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 32).

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Average visibility in August
Henry, IL

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

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

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Henry, Illinois, USA

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