Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
The onset of August notes an average high-temperature of a still warm 82.6°F (28.1°C), subtly shifted from July's 83.8°F (28.8°C). In August, the recorded average low-temperature is an enjoyable 64.9°F (18.3°C).Heat index
August's average heat index is computed to be a hot 91.4°F (33°C). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.Heat index guidelines indicate values are for light wind scenarios and shaded regions. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Humidity
In August, the average relative humidity is 81%.Rainfall
In Coffeen, during August, the rain falls for 12.3 days and regularly aggregates up to 2.36" (60mm) of precipitation. In Coffeen, during the entire year, the rain falls for 138.5 days and collects up to 24.33" (618mm) of precipitation.Snowfall
In Coffeen, snow does not fall in April through October.Daylight
The average length of the day in August is 13h and 39min.On the first day of the month, sunrise is at 5:58 am and sunset at 8:08 pm. On the last day of August, sunrise is at 6:26 am and sunset at 7:29 pm CDT.
Sunshine
In August, the average sunshine is 9.8h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: An average maximum UV index of 6 in August leads to these recommendations:
Deflect overexposure. Sun protection is a necessity. 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. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Coffeen during August?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow?
How many hours of daylight does Coffeen have in August?
When are sunrise and sunset in August?
How many hours of sunshine does Coffeen have in August?
When is the highest UV index?
How high is the UV index in August?
Average temperature in August
Coffeen, IL
- Average high temperature in August: 82.6°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in August: 64.9°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in August
Coffeen, 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 (29.92"Hg).
Average wind speed in August
Coffeen, IL
- Average wind speed in August: 6mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in August
Coffeen, IL
- Average humidity in August: 81%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Coffeen, IL
- Average rainfall in August: 2.36"
The wettest month (with the highest rainfall) is June (3.35").
The driest month (with the least rainfall) is February (1.34").
Average rainfall days in August
Coffeen, 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 January (7 days).
Average snowfall in August
Coffeen, IL
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Coffeen, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (6.2 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
Coffeen, IL
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in August: 9h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in August
Coffeen, IL
- Average sunshine days in August: 15.5 days
The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in August
Coffeen, 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
Coffeen, IL
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June and September (Cloud cover 29).
Average visibility in August
Coffeen, IL
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Coffeen, Illinois, USA
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