August weather forecast
Deer Grove, IL

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Weather in August

The last month of the summer, August, is another warm month in Deer Grove, Illinois, with an average temperature varying between 62.1°F (16.7°C) and 79.5°F (26.4°C).

Temperature

The arrival of August coincides with an average high-temperature of a still moderately hot 79.5°F (26.4°C), indicating a minimal shift from July's 80.2°F (26.8°C). Deer Grove observes an average nighttime low-temperature of 62.1°F (16.7°C) during the month of August.

Humidity

In August, the average relative humidity is 83%.

Rainfall

In Deer Grove, in August, during 11.5 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. Throughout the year, in Deer Grove, there are 114.5 rainfall days, and 12.72" (323mm) of precipitation is accumulated.

Snowfall

In Deer Grove, Illinois, snow does not fall in May through September.

Daylight

In Deer Grove, the average length of the day in August is 13h and 48min.
On the first day of the month, sunrise is at 5:54 am and sunset at 8:16 pm. On the last day of August, sunrise is at 6:24 am and sunset at 7:33 pm CDT.

Sunshine

June through August, with an average of 9.6h of sunshine, are months with the most sunshine.

UV index

In August, the average daily maximum UV index in Deer Grove is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: An average UV index of 5 in August transforms into this advice:
Be vigilant - Suggestions to stave off sun damage are provided. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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Frequently asked questions

What is the temperature in August in Deer Grove?

In Deer Grove, 79.5°F (26.4°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 Deer Grove?

In Deer Grove, Illinois, the average relative humidity in August is 83%.

How much does it rain in Deer Grove in August?

In Deer Grove, in August, during 11.5 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

When it does not snow in Deer Grove?

In Deer Grove, snow does not fall in May through September.

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

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

When are sunrise and sunset in August in Deer Grove?

On the first day of August in Deer Grove, sunrise is at 5:54 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 6:24 am and sunset at 7:33 pm CDT.

What are the months with the most sunshine in Deer Grove?

The months with the most sunshine in Deer Grove, Illinois, are June through August, with an average of 9.6h of sunshine.

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

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

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

In Deer Grove, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a medium 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
Deer Grove, IL

Average temperature in August - Deer Grove, IL
  • Average high temperature in August: 79.5°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 (27.5°F).

  • Average low temperature in August: 62.1°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).

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Average pressure in August
Deer Grove, IL

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

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

The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

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Average humidity in August
Deer Grove, IL

Average humidity in August - Deer Grove, IL
  • Average humidity in August: 83%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in August
Deer Grove, IL

Average rainfall in August - Deer Grove, IL
  • Average rainfall in August: 1.02"

The wettest month (with the highest rainfall) is May (2.01").
The driest month (with the least rainfall) is January (0.55").

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Average rainfall days in August
Deer Grove, IL

Average rainfall days in August - Deer Grove, IL
  • Average rainfall days in August: 11.5 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (3.8 days).

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Average snowfall in August
Deer Grove, IL

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

The month with the highest snowfall is January (1.57").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Deer Grove, IL

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

The month with the highest number of snowfall days is January (10.1 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
Deer Grove, IL

Average daylight in August / Average sunshine in August - Deer Grove, 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 12min).

  • Average sunshine in August: 9h and 4min

The months with the most sunshine are June, July and 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
Deer Grove, IL

Average sunshine days in August - Deer Grove, IL
  • Average sunshine days in August: 16.1 days

The month with the most sunshine days is December (20.8 days).
The month with the least sunshine days is June (13.5 days).

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Average UV index in August
Deer Grove, IL

Average UV index in August - Deer Grove, IL
  • Average UV index in August: 5

The month with the highest UV index is July (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
Deer Grove, IL

Average cloud cover in August - Deer Grove, IL
  • Average cloud cover in August: 33

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 32).

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Average visibility in August
Deer Grove, IL

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

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

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Deer Grove, Illinois, USA

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