August weather forecast
Harwood Heights, IL

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Weather in August

August, the last month of the summer in Harwood Heights, is also a moderately hot month, with an average temperature varying between 66.7°F (19.3°C) and 79.2°F (26.2°C).

Temperature

Harwood Heights's transition from July to August introduces an average high-temperature of a still moderately hot 79.2°F (26.2°C), marking an insignificant variation from the 79.7°F (26.5°C). Harwood Heights experiences an average nighttime temperature of 66.7°F (19.3°C) in the month of August.

Humidity

The average relative humidity in August in Harwood Heights is 74%.

Rainfall

In Harwood Heights, in August, it is raining for 10.5 days, with typically 0.63" (16mm) of accumulated precipitation. Throughout the year, in Harwood Heights, there are 98.2 rainfall days, and 7.36" (187mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Harwood Heights.

Daylight

The average length of the day in August is 13h and 49min.
On the first day of August, sunrise is at 5:45 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:25 pm CDT.

Sunshine

July and August, with an average of 10.4h of sunshine, are months with the most sunshine.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In August, the maximum UV index of 6 transforms into these recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
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Frequently asked questions

What are August temperatures in Harwood Heights?

In August, in Harwood Heights, the average high-temperature is 79.2°F (26.2°C), and the average low-temperature is 66.7°F (19.3°C).

What is the average humidity in August in Harwood Heights?

The average relative humidity in August in Harwood Heights is 74%.

How much does it rain in Harwood Heights in August?

In August, in Harwood Heights, Illinois, the rain falls for 10.5 days. Throughout August, 0.63" (16mm) of precipitation is accumulated.

When it does not snow in Harwood Heights?

June through September are months without snowfall in Harwood Heights.

What is the average length of the day in August in Harwood Heights?

The average day length in August in Harwood Heights is 13h and 49min.

When are sunrise and sunset in August in Harwood Heights?

On the first day of August, sunrise is at 5:45 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:25 pm CDT.

What are the months with the most sunshine in Harwood Heights?

July and August, with an average of 10.4h of sunshine, are months with the most sunshine.

How long on average sun shines in August in Harwood Heights?

The average sunshine duration in August in Harwood Heights is 10.4h.

What is the month with the highest UV index in Harwood Heights?

The months with the highest UV index in Harwood Heights are June through August, with an average maximum UV index of 6.

What is the UV index intensity in August in Harwood Heights?

In Harwood Heights, Illinois, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high 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
Harwood Heights, IL

Average temperature in August - Harwood Heights, IL
  • Average high temperature in August: 79.2°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in August: 66.7°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

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Average pressure in August
Harwood Heights, IL

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in August
Harwood Heights, IL

Average wind speed in August - Harwood Heights, IL
  • Average wind speed in August: 7mph

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is August (7mph).

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Average humidity in August
Harwood Heights, IL

Average humidity in August - Harwood Heights, IL
  • Average humidity in August: 74%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in August
Harwood Heights, IL

Average rainfall in August - Harwood Heights, IL
  • Average rainfall in August: 0.63"

The wettest month (with the highest rainfall) is May (1.06").
The driest month (with the least rainfall) is December (0.31").

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Average rainfall days in August
Harwood Heights, IL

Average rainfall days in August - Harwood Heights, IL
  • Average rainfall days in August: 10.5 days

The month with the highest number of rainy days is May (12.3 days).
The month with the least rainy days is February (2.8 days).

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Average snowfall in August
Harwood Heights, IL

Average snowfall in August - Harwood Heights, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.98").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Harwood Heights, IL

Average snowfall days in August - Harwood Heights, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Harwood Heights, IL

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

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in August: 10h and 2min

The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in August
Harwood Heights, IL

Average sunshine days in August - Harwood Heights, IL
  • Average sunshine days in August: 17.2 days

The month with the most sunshine days is December (23.3 days).
The month with the least sunshine days is June (14.7 days).

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Average UV index in August
Harwood Heights, IL

Average UV index in August - Harwood Heights, IL
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in August
Harwood Heights, IL

Average cloud cover in August - Harwood Heights, IL
  • Average cloud cover in August: 28

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 28).

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Average visibility in August
Harwood Heights, IL

Average visibility in August - Harwood Heights, IL
  • Average visibility in August: 6mi

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

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Harwood Heights, Illinois, USA

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