August weather forecast
Rosiclare, IL

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Weather in August

August, the last month of the summer in Rosiclare, is also a moderately hot month, with an average temperature varying between 66.7°F (19.3°C) and 85.3°F (29.6°C).

Temperature

The commencement of August records an average high-temperature of a moderately hot 85.3°F (29.6°C), barely varying from July's 86.5°F (30.3°C). Rosiclare experiences an average low-temperature of 66.7°F (19.3°C) in the month of August.

Heat index

During August, the heat index is computed to be a sweltering 95°F (35°C). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

In Rosiclare, the average relative humidity in August is 76%.

Rainfall

In Rosiclare, in August, during 14.2 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, in Rosiclare, there are 148.8 rainfall days, and 27.05" (687mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Rosiclare, Illinois.

Daylight

In Rosiclare, the average length of the day in August is 13h and 34min.
On the first day of the month, sunrise is at 5:58 am and sunset at 8:01 pm. On the last day of August, in Rosiclare, sunrise is at 6:23 am and sunset at 7:23 pm CDT.

Sunshine

In August, the average sunshine is 10.4h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 6 during August translates into the following directions:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
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Frequently asked questions

How hot does it get in Rosiclare in August?

The high-temperature, in August, in Rosiclare, is 85.3°F (29.6°C), while the low-temperature averages to 66.7°F (19.3°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is computed to be 95°F (35°C).

What is the average humidity in August in Rosiclare?

In August, the average relative humidity in Rosiclare, Illinois, is 76%.

How much does it rain in Rosiclare in August?

In Rosiclare, in August, it is raining for 14.2 days, with typically 2.24" (57mm) of accumulated precipitation.

When it does not snow in Rosiclare?

May through October are months without snowfall in Rosiclare, Illinois.

How many hours of daylight does Rosiclare have in August?

The average day length in August in Rosiclare is 13h and 34min.

When are sunrise and sunset in August in Rosiclare?

In August, on the first day of the month, sunrise is at 5:58 am and sunset at 8:01 pm. On the last day of the month, in Rosiclare, sunrise is at 6:23 am and sunset at 7:23 pm CDT.

How many hours of sunshine does Rosiclare have in August?

In Rosiclare, Illinois, the average sunshine duration in August is 10.4h.

What are the months with the highest UV index in Rosiclare?

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

What is the UV index intensity in August in Rosiclare?

In Rosiclare, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes 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
Rosiclare, IL

Average temperature in August - Rosiclare, IL
  • Average high temperature in August: 85.3°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (40.5°F).

  • Average low temperature in August: 66.7°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

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Average pressure in August
Rosiclare, IL

Average pressure in August - Rosiclare, IL
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in August
Rosiclare, IL

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

The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in August
Rosiclare, IL

Average humidity in August - Rosiclare, IL
  • Average humidity in August: 76%

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

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Average rainfall in August
Rosiclare, IL

Average rainfall in August - Rosiclare, IL
  • Average rainfall in August: 2.24"

The wettest month (with the highest rainfall) is February (3.03").
The driest month (with the least rainfall) is September (1.3").

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Average rainfall days in August
Rosiclare, IL

Average rainfall days in August - Rosiclare, IL
  • Average rainfall days in August: 14.2 days

The months with the highest number of rainy days are May and July (16.3 days).
The month with the least rainy days is November (8.8 days).

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Average snowfall in August
Rosiclare, IL

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

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

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Average snowfall days in August
Rosiclare, IL

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

The month with the highest number of snowfall days is January (4.5 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
Rosiclare, IL

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

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in August: 10h and 2min

The months with the most sunshine are June and July (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
Rosiclare, IL

Average sunshine days in August - Rosiclare, IL
  • Average sunshine days in August: 14.3 days

The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is July (12.1 days).

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Average UV index in August
Rosiclare, IL

Average UV index in August - Rosiclare, 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 and December (UV index 2).

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Average cloud cover in August
Rosiclare, IL

Average cloud cover in August - Rosiclare, IL
  • Average cloud cover in August: 28

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June, August and September (Cloud cover 28).

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Average visibility in August
Rosiclare, IL

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

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