August weather forecastCreve Coeur, IL
August
Weather in August
August, the last month of the summer in Creve Coeur, is another warm month, with an average temperature varying between 81.1°F (27.3°C) and 63.3°F (17.4°C).Temperature
During August, the average high-temperature is a still moderately hot 81.1°F (27.3°C), maintaining a close resemblance to that of the preceding month. Creve Coeur's average low-temperature for the month of August records at a refreshing 63.3°F (17.4°C).Heat index
The heat index in August is estimated at a tropical 87.8°F (31°C). Constant activity during exposure could result in a state of weariness and possibly heat cramps.Research indicates the heat index considers values in shaded locales and with light winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Humidity
The average relative humidity in August is 81%.Rainfall
In August, in Creve Coeur, the rain falls for 12.3 days. Throughout August, 1.3" (33mm) of precipitation is accumulated. Throughout the year, there are 129.2 rainfall days, and 17.24" (438mm) of precipitation is accumulated.Snowfall
In Creve Coeur, Illinois, snow does not fall in May through September.Daylight
The average length of the day in August is 13h and 44min.On the first day of August, sunrise is at 5:55 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:31 pm CDT.
Sunshine
In Creve Coeur, the average sunshine in August is 10h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 6 in August leads to these guidelines:
Take precautions against overexposure. Protection against sun damage is needed. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Creve Coeur, IL
- Average high temperature in August: 81.1°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in August: 63.3°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in August
Creve Coeur, IL
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Creve Coeur, IL
- Average wind speed in August: 6.5mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in August
Creve Coeur, IL
- Average humidity in August: 81%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Creve Coeur, IL
- Average rainfall in August: 1.3"
The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in August
Creve Coeur, IL
- Average rainfall days in August: 12.3 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in August
Creve Coeur, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.36").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Creve Coeur, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9 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
Creve Coeur, IL
- Average daylight in August: 13h and 42min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 10h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in August
Creve Coeur, IL
- Average sunshine days in August: 16.4 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in August
Creve Coeur, 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).
Average cloud cover in August
Creve Coeur, IL
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in August
Creve Coeur, IL
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
