August weather forecast
Sesser, IL

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Weather in August

The last month of the summer, August, is also a moderately hot month in Sesser, Illinois, with temperature in the range of an average high of 85.3°F (29.6°C) and an average low of 66°F (18.9°C).

Temperature

August experiences an average high-temperature of a warm 85.3°F (29.6°C), barely different from July's 87.1°F (30.6°C). Sesser encounters an average low-temperature of 66°F (18.9°C) during August nights.

Heat index

The heat index in August is estimated at a fiery hot 96.8°F (36°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a composite of temperature and humidity figures to convey how warm it feels. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The average relative humidity in August is 77%.

Rainfall

In Sesser, Illinois, in August, during 11.3 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. Throughout the year, there are 122.7 rainfall days, and 18.03" (458mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Sesser.

Daylight

In August, the average length of the day is 13h and 35min.
On the first day of August in Sesser, sunrise is at 5:59 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:26 pm CDT.

Sunshine

In August, the average sunshine in Sesser is 10.2h.

UV index

The months with the highest UV index in Sesser, Illinois, are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 6 during August translates into these guidelines:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
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Frequently asked questions

How hot is August in Sesser?

In Sesser, in August, the average high-temperature is 85.3°F (29.6°C), and the average low-temperature is 66°F (18.9°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is estimated at 96.8°F (36°C).

What is the average humidity in August in Sesser?

In Sesser, the average relative humidity in August is 77%.

How many days does it rain in August in Sesser?

In August, in Sesser, Illinois, the rain falls for 11.3 days. Throughout August, 1.61" (41mm) of precipitation is accumulated.

When it does not snow in Sesser?

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

How many hours of daylight does Sesser have in August?

In Sesser, Illinois, the average day length in August is 13h and 35min.

What time are sunrise and sunset in August in Sesser?

On the first day of August, sunrise is at 5:59 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:26 pm CDT.

How many hours of sunshine does Sesser have in August?

In August, the average sunshine duration is 10.2h.

When is the highest UV index in Sesser?

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

What is the UV index intensity in August in Sesser?

In Sesser, Illinois, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high hazard to health 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
Sesser, IL

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

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in August: 66°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 (25.7°F).

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Average pressure in August
Sesser, IL

Average pressure in August - Sesser, 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
Sesser, IL

Average wind speed in August - Sesser, IL
  • Average wind speed in August: 5.9mph

The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).

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Average humidity in August
Sesser, IL

Average humidity in August - Sesser, IL
  • Average humidity in August: 77%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in August
Sesser, IL

Average rainfall in August - Sesser, IL
  • Average rainfall in August: 1.61"

The wettest month (with the highest rainfall) is April (2.56").
The driest month (with the least rainfall) is September (0.98").

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Average rainfall days in August
Sesser, IL

Average rainfall days in August - Sesser, IL
  • Average rainfall days in August: 11.3 days

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in August
Sesser, IL

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

The month with the highest snowfall is January (0.71").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Sesser, IL

Average snowfall days in August - Sesser, 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
Sesser, IL

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in August: 10h and 1min

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

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Average sunshine days in August
Sesser, IL

Average sunshine days in August - Sesser, IL
  • Average sunshine days in August: 16.7 days

The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is May (13.8 days).

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Average UV index in August
Sesser, IL

Average UV index in August - Sesser, 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
Sesser, IL

Average cloud cover in August - Sesser, 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 and August (Cloud cover 28).

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Average visibility in August
Sesser, IL

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

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