August weather forecast
East Cape Girardeau, IL

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Weather in August

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

Temperature

The start of August marks an average high-temperature of a still tropical 86.2°F (30.1°C), hardly distinguishable from the conditions in July. In August, the temperature drops to an average of 67.1°F (19.5°C) at night.

Heat index

The heat index value for August is computed to be a sweltering 98.6°F (37°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

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

Rainfall

In East Cape Girardeau, in August, it is raining for 14.4 days, with typically 2.72" (69mm) of accumulated precipitation. In East Cape Girardeau, during the entire year, the rain falls for 158.6 days and collects up to 35.59" (904mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In August, the average length of the day 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

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 in East Cape Girardeau. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 6 during August leads to these instructions:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during August?

August temperatures vary between a high-temperature of 86.2°F (30.1°C) and a low-temperature of 67.1°F (19.5°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, is computed to be 98.6°F (37°C).

What is the average humidity in August?

The average relative humidity in August is 76%.

How many days does it rain in August?

In East Cape Girardeau, in August, during 14.4 rainfall days, 2.72" (69mm) of precipitation is typically accumulated.

When it does not snow?

May through September are months without snowfall.

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?

On the first day of August, 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 many hours of sunshine does East Cape Girardeau have in August?

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

What are the months with the highest UV index?

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

How high is the UV index in August?

In East Cape Girardeau, 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 exposure to the Sun's 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
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

East Cape Girardeau, Illinois, USA

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