August weather forecastCountryside, IL
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Countryside, Illinois, with an average temperature ranging between min 65.3°F (18.5°C) and max 80.6°F (27°C).Temperature
Countryside's weather in August indicates an average high-temperature of a still moderately hot 80.6°F (27°C), nearly consistent with the 81.9°F (27.7°C) of July. During August, Countryside witnesses a consistent average low-temperature of 65.3°F (18.5°C).Heat index
The heat index value for August is computed to be 84.2°F (29°C). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.It is crucial to understand that heat index figures are for shade and gentle wind conditions. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Humidity
The average relative humidity in August is 76%.Rainfall
In August, the rain falls for 17.4 days. Throughout August, 3.46" (88mm) of precipitation is accumulated. Throughout the year, there are 166.8 rainfall days, and 34.96" (888mm) of precipitation is accumulated.Snowfall
In Countryside, snow does not fall in May through September.Daylight
In Countryside, the average length of the day in August is 13h and 49min.On the first day of August in Countryside, sunrise is at 5:46 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:26 pm CDT.
Sunshine
With an average of 10.3h of sunshine, August has the most sunshine of the year.UV index
July and 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 hazard from unsafe exposure to UV radiation for average individuals.Note: In August, the UV index of 6 transforms into the following advice:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Countryside, IL
- Average high temperature in August: 80.6°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in August: 65.3°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in August
Countryside, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Countryside, IL
- Average wind speed in August: 6.3mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in August
Countryside, IL
- Average humidity in August: 76%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Countryside, IL
- Average rainfall in August: 3.46"
The wettest month (with the highest rainfall) is May (4.61").
The driest months (with the least rainfall) are November and December (1.77").
Average rainfall days in August
Countryside, IL
- Average rainfall days in August: 17.4 days
The month with the highest number of rainy days is June (19.4 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in August
Countryside, IL
- Average snowfall in August: 0"
The month with the highest snowfall is February (5.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Countryside, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (13.3 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
Countryside, IL
- Average daylight in August: 13h and 48min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in August: 10h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in August
Countryside, IL
- Average sunshine days in August: 9.5 days
The month with the most sunshine days is November (16.1 days).
The month with the least sunshine days is June (8.2 days).
Average UV index in August
Countryside, IL
- Average UV index in August: 6
The months with the highest UV index are July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Countryside, IL
- Average cloud cover in August: 29
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in August
Countryside, IL
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
