August weather forecast
East Cape Girardeau, IL

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Weather in August

August, the last month of the summer in East Cape Girardeau, is also a hot month, with an average temperature fluctuating between 86.2°F (30.1°C) and 67.1°F (19.5°C).

Temperature

The onset of August brings with it an average high-temperature of a still tropical 86.2°F (30.1°C), showing a negligible variation from the month before. East Cape Girardeau reports a consistent average low-temperature of 67.1°F (19.5°C) throughout August nights.

Heat index

Throughout August, the heat index is calculated to be a sweltering 98.6°F (37°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a single figure representing how weather conditions feel when combining temperature and humidity. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

The average relative humidity in August in East Cape Girardeau, Illinois, is 76%.

Rainfall

In East Cape Girardeau, during August, the rain falls for 14.4 days and regularly aggregates up to 2.72" (69mm) of precipitation. Throughout the year, there are 158.6 rainfall days, and 35.59" (904mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in East Cape Girardeau, Illinois.

Daylight

The average length of the day in August is 13h and 33min.
On the first day of the month, sunrise is at 6:03 am and sunset at 8:05 pm. On the last day of August, sunrise is at 6:28 am and sunset at 7:27 pm CDT.

Sunshine

In East Cape Girardeau, Illinois, the average sunshine in August is 10.4h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In August, the maximum UV index of 6 transforms into these recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

How hot is August in East Cape Girardeau?

In East Cape Girardeau, in August, the average high-temperature is 86.2°F (30.1°C), and the average low-temperature is 67.1°F (19.5°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 98.6°F (37°C).

What is the average humidity in August in East Cape Girardeau?

In East Cape Girardeau, the average relative humidity in August is 76%.

How many days does it rain in August in East Cape Girardeau?

In East Cape Girardeau, in August, it is raining for 14.4 days, with typically 2.72" (69mm) of accumulated precipitation.

When it does not snow in East Cape Girardeau?

In East Cape Girardeau, snow does not fall in May through September.

How many hours of daylight does East Cape Girardeau have in August?

In East Cape Girardeau, the average day length in August is 13h and 33min.

What time are sunrise and sunset in August in East Cape Girardeau?

On the first day of August in East Cape Girardeau, Illinois, sunrise is at 6:03 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:27 pm CDT.

How long on average sun shines in August in East Cape Girardeau?

In August, the average sunshine duration in East Cape Girardeau, Illinois, is 10.4h.

When is the highest UV index in East Cape Girardeau?

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

What is the UV index intensity in August in East Cape Girardeau?

In East Cape Girardeau, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health risk 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
East Cape Girardeau, IL

Average temperature in August - East Cape Girardeau, IL
  • Average high temperature in August: 86.2°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41°F).

  • Average low temperature in August: 67.1°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).

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Average pressure in August
East Cape Girardeau, IL

Average pressure in August - East Cape Girardeau, 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 (29.94"Hg).

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Average wind speed in August
East Cape Girardeau, IL

Average wind speed in August - East Cape Girardeau, IL
  • Average wind speed in August: 5.7mph

The windiest months (with the highest average wind speed) are January and February (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in August
East Cape Girardeau, IL

Average humidity in August - East Cape Girardeau, IL
  • Average humidity in August: 76%

The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in August
East Cape Girardeau, IL

Average rainfall in August - East Cape Girardeau, IL
  • Average rainfall in August: 2.72"

The wettest month (with the highest rainfall) is April (4.33").
The driest month (with the least rainfall) is September (1.5").

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Average rainfall days in August
East Cape Girardeau, IL

Average rainfall days in August - East Cape Girardeau, IL
  • Average rainfall days in August: 14.4 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (9.8 days).

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Average snowfall in August
East Cape Girardeau, IL

Average snowfall in August - East Cape Girardeau, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is February (2.17").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
East Cape Girardeau, IL

Average snowfall days in August - East Cape Girardeau, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (3.7 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
East Cape Girardeau, IL

Average daylight in August / Average sunshine in August - East Cape Girardeau, 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 month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in August
East Cape Girardeau, IL

Average sunshine days in August - East Cape Girardeau, IL
  • Average sunshine days in August: 14.3 days

The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is July (11.9 days).

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Average UV index in August
East Cape Girardeau, IL

Average UV index in August - East Cape Girardeau, 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
East Cape Girardeau, IL

Average cloud cover in August - East Cape Girardeau, IL
  • Average cloud cover in August: 27

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June, August and September (Cloud cover 27).

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Average visibility in August
East Cape Girardeau, IL

Average visibility in August - East Cape Girardeau, 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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East Cape Girardeau, Illinois, USA

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