August weather forecast
Summerfield, IL

Weather in August

The last month of the summer, August, is another warm month in Summerfield, Illinois, with an average temperature varying between 83.8°F (28.8°C) and 65.8°F (18.8°C).

Temperature

In August, the average high-temperature is essentially the same as in July - a still moderately hot 83.8°F (28.8°C). The average low-temperature, in Summerfield, is 65.8°F (18.8°C).

Heat index

The average heat index in August is evaluated at a tropical 93.2°F (34°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'apparent temperature', or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (wind, differences in body mass, height, and shape, pregnancy), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In August, the average relative humidity in Summerfield is 79%.

Rainfall

In Summerfield, it is raining for 13.7 days, with typically 3.07" (78mm) of accumulated precipitation. Throughout the year, in Summerfield, there are 151.1 rainfall days, and 30.43" (773mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in August is 13h and 37min.
On the first day of the month, sunrise is at 6:00 am and sunset at 8:09 pm. On the last day of August, in Summerfield, sunrise is at 6:27 am and sunset at 7:31 pm CDT.

Sunshine

In Summerfield, the average sunshine in August is 10.1h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Summerfield. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The average daily UV index of 6 in August transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in August in Summerfield?

The average high-temperature, in August, in Summerfield, is 83.8°F (28.8°C), while the average low-temperature is 65.8°F (18.8°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in August is evaluated at 93.2°F (34°C).

What is the average humidity in August in Summerfield?

In Summerfield, the average relative humidity in August is 79%.

How much does it rain in Summerfield in August?

In Summerfield, during August, the rain falls for 13.7 days and regularly aggregates up to 3.07" (78mm) of precipitation.

When it does not snow in Summerfield?

May through September are months without snowfall in Summerfield, Illinois.

How many hours of daylight does Summerfield have in August?

In Summerfield, the average day length in August is 13h and 37min.

When are sunrise and sunset in August in Summerfield?

On the first day of August in Summerfield, Illinois, sunrise is at 6:00 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:31 pm CDT.

How many hours of sunshine does Summerfield have in August?

In August, the average sunshine duration is 10.1h.

When is the highest UV index in Summerfield?

May through August, with an average maximum UV index of 6, are months with the highest UV index in Summerfield.

How high is the UV index in August in Summerfield?

In August, the average daily maximum UV index in Summerfield is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Summerfield, IL

Average temperature in August - Summerfield, IL
  • Average high temperature in August: 83.8°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in August: 65.8°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

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Average pressure in August
Summerfield, IL

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in August
Summerfield, IL

Average wind speed in August - Summerfield, IL
  • Average wind speed in August: 5.7mph

The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in August
Summerfield, IL

Average humidity in August - Summerfield, IL
  • Average humidity in August: 79%

The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
Summerfield, IL

Average rainfall in August - Summerfield, IL
  • Average rainfall in August: 3.07"

The wettest month (with the highest rainfall) is June (3.66").
The driest month (with the least rainfall) is February (1.5").

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Average rainfall days in August
Summerfield, IL

Average rainfall days in August - Summerfield, IL
  • Average rainfall days in August: 13.7 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (8 days).

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Average snowfall in August
Summerfield, IL

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

The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Summerfield, IL

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

The month with the highest number of snowfall days is January (7.5 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
Summerfield, IL

Average daylight in August / Average sunshine in August - Summerfield, IL
  • Average daylight in August: 13h and 37min

The month with the longest days is June (Average daylight: 14h and 49min).
The month with the shortest days is December (Average daylight: 9h and 31min).

  • Average sunshine in August: 10h and 6min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

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Average sunshine days in August
Summerfield, IL

Average sunshine days in August - Summerfield, IL
  • Average sunshine days in August: 14.9 days

The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (11 days).

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Average UV index in August
Summerfield, IL

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

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in August
Summerfield, IL

Average cloud cover in August - Summerfield, IL
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 28).

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Average visibility in August
Summerfield, IL

Average visibility in August - Summerfield, 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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