August weather forecastKeensburg, IL
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Keensburg, Illinois, with an average temperature varying between 65.7°F (18.7°C) and 83.1°F (28.4°C).Temperature
Transitioning from July to August, Keensburg observes an average high-temperature of a still moderately hot 83.1°F (28.4°C), differing subtly from the previous month. Keensburg records an average nighttime low of 65.7°F (18.7°C) in August.Heat index
August's mean heat index is appraised at a tropical 91.4°F (33°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.Consider that heat index readings are for situations in the shade and light wind. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
In August, the average relative humidity is 79%.Rainfall
In Keensburg, Illinois, during August, the rain falls for 12.8 days and regularly aggregates up to 2.32" (59mm) of precipitation. Throughout the year, there are 155.6 rainfall days, and 34.65" (880mm) of precipitation is accumulated.Snowfall
In Keensburg, Illinois, snow does not fall in May through October.Daylight
In Keensburg, the average length of the day in August is 13h and 37min.On the first day of August, sunrise is at 5:54 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 7:22 pm CDT.
Sunshine
In Keensburg, 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 risk from unsafe exposure to UV radiation for ordinary individuals.Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Keensburg, IL
- Average high temperature in August: 83.1°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in August: 65.7°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in August
Keensburg, IL
- Average pressure in August: 29.99"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
Keensburg, IL
- Average wind speed in August: 6mph
The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in August
Keensburg, IL
- Average humidity in August: 79%
The months with the highest relative humidity are May and July (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in August
Keensburg, IL
- Average rainfall in August: 2.32"
The wettest month (with the highest rainfall) is April (4.72").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in August
Keensburg, IL
- Average rainfall days in August: 12.8 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in August
Keensburg, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Keensburg, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Keensburg, IL
- Average daylight in August: 13h and 36min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in August: 10h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in August
Keensburg, IL
- Average sunshine days in August: 15.8 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (10.3 days).
Average UV index in August
Keensburg, 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, November and December (UV index 2).
Average cloud cover in August
Keensburg, IL
- Average cloud cover in August: 28
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in August
Keensburg, 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).
