August weather forecast
Donovan, IL

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Weather in August

The last month of the summer, August, is also a moderately hot month in Donovan, Illinois, with an average temperature fluctuating between 62.6°F (17°C) and 79.5°F (26.4°C).

Temperature

With the onset of August, the average high-temperature registers at a still moderately hot 79.5°F (26.4°C), subtly different from July's 81°F (27.2°C). Donovan's average low-temperature in the month of August is recorded at a refreshing 62.6°F (17°C).

Humidity

The average relative humidity in August is 84%.

Rainfall

In August, in Donovan, the rain falls for 13.2 days. Throughout August, 1.77" (45mm) of precipitation is accumulated. Throughout the year, there are 136.7 rainfall days, and 19.72" (501mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In Donovan, the average length of the day in August is 13h and 45min.
On the first day of the month, sunrise is at 5:47 am and sunset at 8:06 pm. On the last day of August, sunrise is at 6:17 am and sunset at 7:24 pm CDT.

Sunshine

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

UV index

In Donovan, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: During August, 5 as the daily maximum UV index converts into the following advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

What is the usual temperature for Donovan in August?

In Donovan, 79.5°F (26.4°C) is the average high-temperature and 62.6°F (17°C) is the average low-temperature during August. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in July is calculated to be 87.8°F (31°C).

What is the average humidity in August in Donovan?

The average relative humidity in August in Donovan is 84%.

How much does it rain in Donovan in August?

In Donovan, in August, it is raining for 13.2 days, with typically 1.77" (45mm) of accumulated precipitation.

When it does not snow in Donovan?

In Donovan, Illinois, snow does not fall in May through October.

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

In August, the average day length in Donovan is 13h and 45min.

When are sunrise and sunset in August in Donovan?

On the first day of August in Donovan, sunrise is at 5:47 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:24 pm CDT.

How long on average sun shines in August in Donovan?

In August, the average sunshine duration is 9.7h.

What is the UV index intensity in August in Donovan?

The average daily maximum UV index in August in Donovan, Illinois, is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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
Donovan, IL

Average temperature in August - Donovan, IL
  • Average high temperature in August: 79.5°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in August: 62.6°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).

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Average pressure in August
Donovan, IL

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in August
Donovan, IL

Average wind speed in August - Donovan, IL
  • Average wind speed in August: 6.2mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

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Average humidity in August
Donovan, IL

Average humidity in August - Donovan, IL
  • Average humidity in August: 84%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
Donovan, IL

Average rainfall in August - Donovan, IL
  • Average rainfall in August: 1.77"

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is February (0.98").

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Average rainfall days in August
Donovan, IL

Average rainfall days in August - Donovan, IL
  • Average rainfall days in August: 13.2 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (6.2 days).

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Average snowfall in August
Donovan, IL

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

The month with the highest snowfall is January (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Donovan, IL

Average snowfall days in August - Donovan, 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
Donovan, IL

Average daylight in August / Average sunshine in August - Donovan, 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 18min).

  • Average sunshine in August: 9h and 4min

The month with the most sunshine is June (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
Donovan, IL

Average sunshine days in August - Donovan, IL
  • Average sunshine days in August: 13.3 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (10.1 days).

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Average UV index in August
Donovan, IL

Average UV index in August - Donovan, IL
  • Average UV index in August: 5

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

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Average cloud cover in August
Donovan, IL

Average cloud cover in August - Donovan, IL
  • Average cloud cover in August: 33

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 33).

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Average visibility in August
Donovan, IL

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

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