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
August's presence records an average high-temperature of a still moderately hot 79.9°F (26.6°C), closely mirroring July's climate. During the month of August, Bartlett anticipates a mean low-temperature of 63.7°F (17.6°C).Humidity
In Bartlett, the average relative humidity in August is 78%.Rainfall
In Bartlett, Illinois, in August, during 15.8 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. In Bartlett, during the entire year, the rain falls for 141.5 days and collects up to 22.76" (578mm) of precipitation.Snowfall
June through September are months without snowfall in Bartlett.Daylight
The average length of the day in August in Bartlett is 13h and 49min.On the first day of August, sunrise is at 5:47 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 7:27 pm CDT.
Sunshine
The months with the most sunshine are July and August, with an average of 9.8h 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 reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 6 in August translates into these instructions:
Inhibit overexposure. Warding off sun damage is of utmost importance. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average August temperature?
What is the average humidity in August?
How much does it rain in August?
When it does not snow in Bartlett?
What is the average length of the day in August?
What time are sunrise and sunset in August?
What are the months with the most sunshine?
How many hours of sunshine does Bartlett have in August?
What are the months with the highest UV index?
How high is the UV index in August?
Average temperature in August
Bartlett, IL
- Average high temperature in August: 79.9°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in August: 63.7°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.3°F).
Average pressure in August
Bartlett, 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
Bartlett, IL
- Average wind speed in August: 6.2mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in August
Bartlett, IL
- Average humidity in August: 78%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in August
Bartlett, IL
- Average rainfall in August: 2.6"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is December (1.02").
Average rainfall days in August
Bartlett, IL
- Average rainfall days in August: 15.8 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in August
Bartlett, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (3.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Bartlett, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Bartlett, 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 12min).
- Average sunshine in August: 9h and 5min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in August
Bartlett, IL
- Average sunshine days in August: 11.3 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in August
Bartlett, 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 and December (UV index 1).
Average cloud cover in August
Bartlett, IL
- Average cloud cover in August: 33
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July, August and September (Cloud cover 33).
Average visibility in August
Bartlett, 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).
Bartlett, Illinois, USA
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