August weather forecast
Sugar Grove, IL

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Weather in August

The last month of the summer, August, is also a moderately hot month in Sugar Grove, Illinois, with an average temperature ranging between min 61.7°F (16.5°C) and max 79.2°F (26.2°C).

Temperature

Transitioning into August, Sugar Grove experiences an average high-temperature of a still moderately hot 79.2°F (26.2°C), marking a minor shift from the preceding month. During August, the temperature in Sugar Grove tends to dip to an average of 61.7°F (16.5°C) at night.

Humidity

January, July and August, with an average relative humidity of 84%, are the most humid months.

Rainfall

In Sugar Grove, during August, the rain falls for 15.7 days and regularly aggregates up to 2.4" (61mm) of precipitation. In Sugar Grove, during the entire year, the rain falls for 156.4 days and collects up to 30.98" (787mm) of precipitation.

Snowfall

In Sugar Grove, Illinois, snow does not fall in June through September.

Daylight

In August, the average length of the day in Sugar Grove is 13h and 49min.
On the first day of August in Sugar Grove, sunrise is at 5:48 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 7:28 pm CDT.

Sunshine

With an average of 9.6h of sunshine, August has the most sunshine of the year.

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 threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 6 during August translates into the following directions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Frequently asked questions

What is the temperature in August in Sugar Grove?

The high-temperature in Sugar Grove, Illinois, during August is 79.2°F (26.2°C) and the low-temperature is 61.7°F (16.5°C). In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 86°F (30°C).

What is the most humid month in Sugar Grove?

The months with the highest humidity in Sugar Grove, Illinois, are January, July and August, with an average relative humidity of 84%.

What is the average humidity in August in Sugar Grove?

In Sugar Grove, the average relative humidity in August is 84%.

How many days does it rain in August in Sugar Grove?

In August, in Sugar Grove, Illinois, the rain falls for 15.7 days. Throughout August, 2.4" (61mm) of precipitation is accumulated.

When it does not snow in Sugar Grove?

June through September are months without snowfall.

What is the average length of the day in August in Sugar Grove?

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

What time are sunrise and sunset in August in Sugar Grove?

In August, on the first day of the month, sunrise is at 5:48 am and sunset at 8:11 pm. On the last day of the month, in Sugar Grove, sunrise is at 6:19 am and sunset at 7:28 pm CDT.

What month has the most sunshine in Sugar Grove?

August has the most sunshine of the year, with an average of 9.6h of sunshine.

How long on average sun shines in August in Sugar Grove?

In Sugar Grove, the average sunshine duration in August is 9.6h.

What are the months with the highest UV index in Sugar Grove?

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

What is the UV index reading in August in Sugar Grove?

The average daily maximum UV index in August in Sugar Grove, Illinois, is 6. A UV Index of 6 to 7 symbolizes a high health risk 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
Sugar Grove, IL

Average temperature in August - Sugar Grove, IL
  • Average high temperature in August: 79.2°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in August: 61.7°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).

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Average pressure in August
Sugar Grove, IL

Average pressure in August - Sugar 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
Sugar Grove, IL

Average wind speed in August - Sugar Grove, IL
  • Average wind speed in August: 6mph

The windiest months (with the highest average wind speed) are January, February and April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in August
Sugar Grove, IL

Average humidity in August - Sugar Grove, IL
  • Average humidity in August: 84%

The months with the highest relative humidity are January, July and August (84%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in August
Sugar Grove, IL

Average rainfall in August - Sugar Grove, IL
  • Average rainfall in August: 2.4"

The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is December (1.57").

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Average rainfall days in August
Sugar Grove, IL

Average rainfall days in August - Sugar Grove, IL
  • Average rainfall days in August: 15.7 days

The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is February (6 days).

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Average snowfall in August
Sugar Grove, IL

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

The month with the highest snowfall is January (4.65").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Sugar Grove, IL

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

The month with the highest number of snowfall days is January (13.1 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
Sugar Grove, IL

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

The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in August
Sugar Grove, IL

Average sunshine days in August - Sugar Grove, IL
  • Average sunshine days in August: 13.6 days

The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is April (10.3 days).

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Average UV index in August
Sugar Grove, IL

Average UV index in August - Sugar Grove, 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
Sugar Grove, IL

Average cloud cover in August - Sugar Grove, IL
  • Average cloud cover in August: 34

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 34).

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Average visibility in August
Sugar Grove, IL

Average visibility in August - Sugar Grove, IL
  • Average visibility in August: 5mi

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

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Sugar Grove, Illinois, USA

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