August weather forecast
Lyndon, IL

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Weather in August

The last month of the summer, August, is also a moderately hot month in Lyndon, Illinois, with temperature in the range of an average high of 79.9°F (26.6°C) and an average low of 62.1°F (16.7°C).

Temperature

With the onset of August, a modest change to a still warm 79.9°F (26.6°C) from July's 80.2°F (26.8°C) is noted in high-temperature. The average low-temperature during August nights is a refreshing 62.1°F (16.7°C).

Humidity

In Lyndon, the average relative humidity in August is 82%.

Rainfall

In Lyndon, during August, the rain falls for 15.2 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, in Lyndon, there are 151.5 rainfall days, and 30.24" (768mm) of precipitation is accumulated.

Snowfall

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

Daylight

In August, the average length of the day in Lyndon is 13h and 48min.
On the first day of August in Lyndon, sunrise is at 5:54 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:34 pm CDT.

Sunshine

The average sunshine in August is 9.7h.

UV index

The months with the highest UV index in Lyndon are July and August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: A maximum high daily UV index of 6 during August translates into the following directions:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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Frequently asked questions

What is the average August temperature in Lyndon?

In Lyndon, 79.9°F (26.6°C) is the average high-temperature and 62.1°F (16.7°C) is the average low-temperature during August.

What is the average humidity in August in Lyndon?

The average relative humidity in August in Lyndon, Illinois, is 82%.

How much does it rain in Lyndon in August?

In Lyndon, in August, during 15.2 rainfall days, 2.24" (57mm) of precipitation is typically accumulated.

When it does not snow in Lyndon?

May through September are months without snowfall in Lyndon.

What is the average length of the day in August in Lyndon?

In Lyndon, the average day length in August is 13h and 48min.

When are sunrise and sunset in August in Lyndon?

In August, on the first day of the month, sunrise is at 5:54 am and sunset at 8:17 pm. On the last day of the month, in Lyndon, Illinois, sunrise is at 6:25 am and sunset at 7:34 pm CDT.

How many hours of sunshine does Lyndon have in August?

In Lyndon, Illinois, the average sunshine duration in August is 9.7h.

What are the months with the highest UV index in Lyndon?

The months with the highest UV index in Lyndon, Illinois, are July and August, with an average maximum UV index of 6.

How high is the UV index in August in Lyndon?

The average daily maximum UV index in August in Lyndon is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from 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
Lyndon, IL

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

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (27.7°F).

  • Average low temperature in August: 62.1°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).

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Average pressure in August
Lyndon, IL

Average pressure in August - Lyndon, IL
  • Average pressure in August: 29.97"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
Lyndon, IL

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

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

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Average humidity in August
Lyndon, IL

Average humidity in August - Lyndon, IL
  • Average humidity in August: 82%

The months with the highest relative humidity are January and July (85%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in August
Lyndon, IL

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

The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is January (1.42").

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Average rainfall days in August
Lyndon, IL

Average rainfall days in August - Lyndon, IL
  • Average rainfall days in August: 15.2 days

The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (5.2 days).

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Average snowfall in August
Lyndon, IL

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

The month with the highest snowfall is January (4.49").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Lyndon, IL

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

The month with the highest number of snowfall days is January (10.5 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
Lyndon, IL

Average daylight in August / Average sunshine in August - Lyndon, 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: 9h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in August
Lyndon, IL

Average sunshine days in August - Lyndon, IL
  • Average sunshine days in August: 12.7 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is June (9.1 days).

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Average UV index in August
Lyndon, IL

Average UV index in August - Lyndon, IL
  • Average UV index in August: 6

The months with the highest UV index are 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
Lyndon, IL

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

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 30).

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Average visibility in August
Lyndon, IL

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

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