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
Bluffs's shift from July to August is accompanied by an average high-temperature of a still moderately hot 83.5°F (28.6°C), a slight deviation from 84°F (28.9°C). In the month of August, Bluffs experiences an average low-temperature of 64.9°F (18.3°C).Heat index
August's average heat index is computed to be a hot 91.4°F (33°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.Know that the heat index computations account for shaded terrains and slight winds. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Humidity
In August, the average relative humidity is 79%.Rainfall
In Bluffs, in August, during 14.9 rainfall days, 2.72" (69mm) of precipitation is typically accumulated. In Bluffs, during the entire year, the rain falls for 155.4 days and collects up to 31.69" (805mm) of precipitation.Snowfall
In Bluffs, Illinois, snow does not fall in May through September.Daylight
In August, the average length of the day is 13h and 41min.On the first day of August, sunrise is at 6:01 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:34 pm CDT.
Sunshine
In Bluffs, the average sunshine in August is 9.9h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 6 during August translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in August?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow?
What is the average length of the day in August?
When is the sunrise / sunset in August?
How long on average sun shines in August?
When is the highest UV index?
What is the UV index reading in August?
Average temperature in August
Bluffs, IL
- Average high temperature in August: 83.5°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in August: 64.9°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in August
Bluffs, IL
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Bluffs, IL
- Average wind speed in August: 6.1mph
The windiest months (with the highest average wind speed) are January and April (9.9mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in August
Bluffs, IL
- Average humidity in August: 79%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in August
Bluffs, IL
- Average rainfall in August: 2.72"
The wettest month (with the highest rainfall) is May (4.02").
The driest months (with the least rainfall) are January, February and December (1.73").
Average rainfall days in August
Bluffs, IL
- Average rainfall days in August: 14.9 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (7.2 days).
Average snowfall in August
Bluffs, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (3.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Bluffs, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.8 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
Bluffs, 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 24min).
- Average sunshine in August: 9h and 5min
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 18min).
Average sunshine days in August
Bluffs, IL
- Average sunshine days in August: 12.8 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (8.6 days).
Average UV index in August
Bluffs, 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
Bluffs, IL
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 30).
Average visibility in August
Bluffs, IL
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Bluffs, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location