August weather forecast
North Henderson, IL

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Weather in August

August, the last month of the summer in North Henderson, is also a moderately hot month, with temperature in the range of an average high of 80.6°F (27°C) and an average low of 63.3°F (17.4°C).

Temperature

August is marked by an average high-temperature of a still warm 80.6°F (27°C), almost identical to the preceding month. Throughout August, North Henderson encounters an average temperature drop to an enjoyable 63.3°F (17.4°C).

Heat index

August's mean heat index is computed to be a tropical 86°F (30°C). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.
Records show heat index calculations are tailored for shaded regions and mild winds. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.

Humidity

The average relative humidity in August is 81%.

Rainfall

In North Henderson, in August, during 10.1 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. In North Henderson, during the entire year, the rain falls for 109.9 days and collects up to 11.14" (283mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In North Henderson, the average length of the day in August is 13h and 46min.
On the first day of the month, sunrise is at 5:58 am and sunset at 8:17 pm. On the last day of August, in North Henderson, sunrise is at 6:28 am and sunset at 7:35 pm CDT.

Sunshine

In August, the average sunshine in North Henderson is 9.8h.

UV index

In North Henderson, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: A typical high UV index of 5 in August suggests the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
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Frequently asked questions

What are the temperatures in North Henderson in August?

In North Henderson, 80.6°F (27°C) is the average high-temperature and 63.3°F (17.4°C) is the average low-temperature during August. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in August is computed to be 86°F (30°C).

What is the average humidity in August in North Henderson?

In August, the average relative humidity in North Henderson is 81%.

How many days does it rain in August in North Henderson?

In North Henderson, in August, it is raining for 10.1 days, with typically 0.83" (21mm) of accumulated precipitation.

When it does not snow in North Henderson?

In North Henderson, Illinois, snow does not fall in May through September.

How many hours of daylight does North Henderson have in August?

The average day length in August in North Henderson, Illinois, is 13h and 46min.

What time are sunrise and sunset in August in North Henderson?

On the first day of August in North Henderson, sunrise is at 5:58 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:35 pm CDT.

How many hours of sunshine does North Henderson have in August?

In August, the average sunshine duration in North Henderson, Illinois, is 9.8h.

How high is the UV index in August in North Henderson?

In North Henderson, Illinois, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
North Henderson, IL

Average temperature in August - North Henderson, IL
  • Average high temperature in August: 80.6°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.5°F).

  • Average low temperature in August: 63.3°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 (17.4°F).

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Average pressure in August
North Henderson, IL

Average pressure in August - North Henderson, IL
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in August
North Henderson, IL

Average wind speed in August - North Henderson, IL
  • Average wind speed in August: 6.8mph

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity in August
North Henderson, IL

Average humidity in August - North Henderson, IL
  • Average humidity in August: 81%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in August
North Henderson, IL

Average rainfall in August - North Henderson, IL
  • Average rainfall in August: 0.83"

The wettest month (with the highest rainfall) is May (1.65").
The driest months (with the least rainfall) are January and December (0.47").

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Average rainfall days in August
North Henderson, IL

Average rainfall days in August - North Henderson, IL
  • Average rainfall days in August: 10.1 days

The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is February (3.9 days).

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Average snowfall in August
North Henderson, IL

Average snowfall in August - North Henderson, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
North Henderson, IL

Average snowfall days in August - North Henderson, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (8.8 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
North Henderson, IL

Average daylight in August / Average sunshine in August - North Henderson, 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 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in August
North Henderson, IL

Average sunshine days in August - North Henderson, IL
  • Average sunshine days in August: 16.8 days

The month with the most sunshine days is December (21.6 days).
The month with the least sunshine days is June (12.4 days).

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Average UV index in August
North Henderson, IL

Average UV index in August - North Henderson, 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
North Henderson, IL

Average cloud cover in August - North Henderson, IL
  • Average cloud cover in August: 31

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 30).

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Average visibility in August
North Henderson, IL

Average visibility in August - North Henderson, IL
  • Average visibility in August: 6mi

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

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North Henderson, Illinois, USA

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