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
Arlington Heights's shift into August is marked by a subtle change to a still warm 80.1°F (26.7°C) from July's 81.1°F (27.3°C) in temperature. The mean low-temperature during August nights is an enjoyable 65.3°F (18.5°C).Humidity
In Arlington Heights, Illinois, the average relative humidity in August is 75%.Rainfall
In August, in Arlington Heights, Illinois, the rain falls for 13.6 days. Throughout August, 2.32" (59mm) of precipitation is accumulated. In Arlington Heights, Illinois, during the entire year, the rain falls for 142.7 days and collects up to 27.91" (709mm) of precipitation.Snowfall
In Arlington Heights, snow does not fall in June through September.Daylight
In August, the average length of the day in Arlington Heights is 13h and 50min.On the first day of the month, sunrise is at 5:46 am and sunset at 8:10 pm. On the last day of August, sunrise is at 6:17 am and sunset at 7:26 pm CDT.
Sunshine
The months with the most sunshine in Arlington Heights are July and August, with an average of 10.1h 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 threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum UV index of 6 in August translates into the following recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
What are August temperatures in Arlington Heights?
What is the average humidity in August in Arlington Heights?
How much does it rain in Arlington Heights in August?
When it does not snow in Arlington Heights?
What is the average length of the day in August in Arlington Heights?
When is the sunrise / sunset in August in Arlington Heights?
What is the month with the most sunshine in Arlington Heights?
How long on average sun shines in August in Arlington Heights?
What are the months with the highest UV index in Arlington Heights?
What is the UV index reading in August in Arlington Heights?
Average temperature in August
Arlington Heights, IL
- Average high temperature in August: 80.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in August: 65.3°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in August
Arlington Heights, 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
Arlington Heights, IL
- Average wind speed in August: 6.4mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in August
Arlington Heights, IL
- Average humidity in August: 75%
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
Arlington Heights, IL
- Average rainfall in August: 2.32"
The wettest months (with the highest rainfall) are April and May (3.46").
The driest month (with the least rainfall) is November (1.57").
Average rainfall days in August
Arlington Heights, IL
- Average rainfall days in August: 13.6 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in August
Arlington Heights, IL
- Average snowfall in August: 0"
The month with the highest snowfall is February (5.71").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Arlington Heights, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Arlington Heights, 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: 10h and 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in August
Arlington Heights, IL
- Average sunshine days in August: 16 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in August
Arlington Heights, 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
Arlington Heights, IL
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in August
Arlington Heights, 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).
Arlington Heights, Illinois, USA
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