August weather forecast
Long Grove, IL

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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
Long Grove, IL

Average temperature in August - Long Grove, IL
  • Average high temperature in August: 79.7°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in August: 64.9°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).

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Average pressure in August
Long Grove, IL

Average pressure in August - Long Grove, 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
Long Grove, IL

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

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

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Average humidity in August
Long Grove, IL

Average humidity in August - Long Grove, IL
  • Average humidity in August: 76%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in August
Long Grove, IL

Average rainfall in August - Long Grove, IL
  • Average rainfall in August: 2.8"

The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is December (1.34").

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Average rainfall days in August
Long Grove, IL

Average rainfall days in August - Long Grove, IL
  • Average rainfall days in August: 16.1 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (5.9 days).

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Average snowfall in August
Long Grove, IL

Average snowfall in August - Long Grove, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is January (4.8").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Long Grove, IL

Average snowfall days in August - Long Grove, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (12.5 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
Long Grove, IL

Average daylight in August / Average sunshine in August - Long Grove, 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 month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in August
Long Grove, IL

Average sunshine days in August - Long Grove, IL
  • Average sunshine days in August: 12.8 days

The month with the most sunshine days is November (15.7 days).
The month with the least sunshine days is April (10.3 days).

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Average UV index in August
Long Grove, IL

Average UV index in August - Long Grove, IL
  • Average UV index in August: 6

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

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Average cloud cover in August
Long Grove, IL

Average cloud cover in August - Long Grove, IL
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in August
Long Grove, IL

Average visibility in August - Long Grove, 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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Long Grove, Illinois, USA

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