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 sea temperature 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 beginning of August reveals an average high-temperature of a still moderately hot 77.5°F (25.3°C), showing minimal deviation from the previous month. Lake Bluff throughout August, experiences an average nighttime temperature of 66.7°F (19.3°C).Humidity
In August, the average relative humidity in Lake Bluff, Illinois, is 76%.Rainfall
In Lake Bluff, during August, the rain falls for 15.8 days and regularly aggregates up to 3.07" (78mm) of precipitation. Throughout the year, there are 154.1 rainfall days, and 30.24" (768mm) of precipitation is accumulated.Snowfall
In Lake Bluff, snow does not fall in May through September.Ocean temperature
The month with the warmest seawater is August, with an average ocean temperature of 73.2°F (22.9°C).Note: Cold sensitivities vary, but with the right amount of sunshine, a gentle breeze, and a warm day, a swim in 73.2°F (22.9°C) waters might be just right. Remember, Olympic swimmers are used to waters between 77°F (25°C) and 82.4°F (28°C).
Daylight
The average length of the day in August in Lake Bluff, Illinois, is 13h and 50min.On the first day of August in Lake Bluff, sunrise is at 5:44 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:26 pm CDT.
Sunshine
The month with the most sunshine is August, with an average of 10.7h of sunshine.UV index
June 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 hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 6 in August translates into the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Caution! The Sun's UV intensity grows with reflections off sand and water.
Frequently asked questions
What are August temperatures in Lake Bluff?
What is the average humidity in August in Lake Bluff?
How much does it rain in Lake Bluff in August?
When it does not snow in Lake Bluff?
What month is the ocean warmest in Lake Bluff?
How warm is the water in August in Lake Bluff?
What is the average length of the day in August in Lake Bluff?
When are sunrise and sunset in August in Lake Bluff?
What month has the most sunshine in Lake Bluff?
How many hours of sunshine does Lake Bluff have in August?
What are the months with the highest UV index in Lake Bluff?
What is the UV index reading in August in Lake Bluff?
Average temperature in August
Lake Bluff, IL
- Average high temperature in August: 77.5°F
The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in August: 66.7°F
The months with the highest average low temperature are July and August (66.7°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in August
Lake Bluff, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Lake Bluff, IL
- Average wind speed in August: 7.4mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (7.4mph).
Average humidity in August
Lake Bluff, 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 (73%).
Average rainfall in August
Lake Bluff, IL
- Average rainfall in August: 3.07"
The wettest months (with the highest rainfall) are May and June (3.82").
The driest month (with the least rainfall) is December (1.3").
Average rainfall days in August
Lake Bluff, IL
- Average rainfall days in August: 15.8 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in August
Lake Bluff, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (4.13").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Lake Bluff, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in August
Lake Bluff, IL
- Average sea temperature in August: 73.3°F
The best month for swimming (with the highest average sea temperature) is August (73.3°F).
The coldest month (with the lowest average sea temperature) is February (37.1°F).
Average daylight in August /
Average sunshine in August
Lake Bluff, IL
- Average daylight in August: 13h and 5min
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 6min).
- Average sunshine in August: 10h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in August
Lake Bluff, IL
- Average sunshine days in August: 13.1 days
The month with the most sunshine days is December (15.3 days).
The month with the least sunshine days is April (10.8 days).
Average UV index in August
Lake Bluff, IL
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Lake Bluff, IL
- Average cloud cover in August: 27
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in August
Lake Bluff, 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).
Lake Bluff, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location
