August weather forecast
Shumway, IL

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Weather in August

The last month of the summer, August, is also a moderately hot month in Shumway, Illinois, with an average temperature fluctuating between 82°F (27.8°C) and 64.8°F (18.2°C).

Temperature

Shumway's August average high-temperature settles at a still warm 82°F (27.8°C), showing a near match with the preceding month. Shumway reports an average low-temperature of 64.8°F (18.2°C) during the nights of August.

Heat index

In August, the average heat index is computed to be a hot 89.6°F (32°C). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.
Observations indicate that the heat index values are for shady locations with light wind. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.

Humidity

In August, the average relative humidity is 81%.

Rainfall

In Shumway, Illinois, in August, during 12.7 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. Throughout the year, there are 135.9 rainfall days, and 21.89" (556mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In August, the average length of the day in Shumway is 13h and 39min.
On the first day of August, sunrise is at 5:55 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:26 pm CDT.

Sunshine

The average sunshine in August in Shumway is 10h.

UV index

The months with the highest UV index in Shumway are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 6 in August translates into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
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Frequently asked questions

What is the temperature in August in Shumway?

In August, the average high-temperature and low-temperature in Shumway are 82°F (27.8°C) and 64.8°F (18.2°C) respectively. In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is computed to be 89.6°F (32°C).

What is the average humidity in August in Shumway?

In August, the average relative humidity is 81%.

How many days does it rain in August in Shumway?

In Shumway, Illinois, in August, during 12.7 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

When it does not snow in Shumway?

May through October are months without snowfall.

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

In Shumway, Illinois, the average day length in August is 13h and 39min.

What time are sunrise and sunset in August in Shumway?

On the first day of August in Shumway, Illinois, sunrise is at 5:55 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:26 pm CDT.

How many hours of sunshine does Shumway have in August?

In Shumway, Illinois, the average sunshine duration in August is 10h.

What is the month with the highest UV index in Shumway?

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

How high is the UV index in August in Shumway?

In Shumway, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
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
Shumway, IL

Average temperature in August - Shumway, IL
  • Average high temperature in August: 82°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in August: 64.8°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (23°F).

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Average pressure in August
Shumway, IL

Average pressure in August - Shumway, 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
Shumway, IL

Average wind speed in August - Shumway, IL
  • Average wind speed in August: 6.1mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6mph).

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Average humidity in August
Shumway, IL

Average humidity in August - Shumway, IL
  • Average humidity in August: 81%

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in August
Shumway, IL

Average rainfall in August - Shumway, IL
  • Average rainfall in August: 2.09"

The wettest month (with the highest rainfall) is April (2.83").
The driest month (with the least rainfall) is February (1.06").

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Average rainfall days in August
Shumway, IL

Average rainfall days in August - Shumway, IL
  • Average rainfall days in August: 12.7 days

The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is January (6.9 days).

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Average snowfall in August
Shumway, IL

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

The month with the highest snowfall is January (1.18").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Shumway, IL

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

The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in August /
Average sunshine in August
Shumway, IL

Average daylight in August / Average sunshine in August - Shumway, IL
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days in August
Shumway, IL

Average sunshine days in August - Shumway, IL
  • Average sunshine days in August: 14.4 days

The month with the most sunshine days is January (20 days).
The month with the least sunshine days is May (12.9 days).

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Average UV index in August
Shumway, IL

Average UV index in August - Shumway, 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, February, November and December (UV index 2).

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Average cloud cover in August
Shumway, IL

Average cloud cover in August - Shumway, IL
  • Average cloud cover in August: 30

The months with the most cloud cover are January and February (Cloud cover 53).
The months with the least cloud cover are June and September (Cloud cover 29).

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Average visibility in August
Shumway, IL

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

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