August weather forecastHighland Park, IL
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Highland Park, Illinois, with temperature in the range of an average low of 66.7°F (19.3°C) and an average high of 77.5°F (25.3°C).Temperature
Shifting into August, Highland Park records an average high-temperature of a still warm 77.5°F (25.3°C), presenting minor fluctuations compared to the previous month. Highland Park experiences a consistent average temperature of 66.7°F (19.3°C) throughout the nights in August.Humidity
The average relative humidity in August in Highland Park is 76%.Rainfall
In Highland Park, in August, it is raining for 15.8 days, with typically 3.07" (78mm) of accumulated precipitation. In Highland Park, during the entire year, the rain falls for 154.1 days and collects up to 30.24" (768mm) of precipitation.Snowfall
In Highland Park, Illinois, snow does not fall in May through September.Daylight
In Highland Park, the average length of the day in August is 13h and 50min.On the first day of August in Highland Park, sunrise is at 5:45 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:26 pm CDT.
Sunshine
August has the most sunshine of the year, 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 of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: A maximum high daily UV index of 6 during August translates into the following directions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Highland Park, 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
Highland Park, 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
Highland Park, 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
Highland Park, 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
Highland Park, 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
Highland Park, 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
Highland Park, 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
Highland Park, 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 daylight in August /
Average sunshine in August
Highland Park, IL
- Average daylight in August: 13h and 48min
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 42min
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
Highland Park, 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
Highland Park, 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
Highland Park, 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
Highland Park, 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).
