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
With the onset of August, Round Lake Park's average high-temperature clocks in at a still moderately hot 78.6°F (25.9°C), showing a minor fluctuation from the previous month. In the month of August, the average low-temperature in Round Lake Park usually rests at a refreshing 63.1°F (17.3°C).Humidity
In Round Lake Park, the average relative humidity in August is 79%.Rainfall
In Round Lake Park, during August, the rain falls for 16 days and regularly aggregates up to 2.64" (67mm) of precipitation. Throughout the year, there are 142.3 rainfall days, and 21.97" (558mm) of precipitation is accumulated.Snowfall
In Round Lake Park, Illinois, snow does not fall in June through September.Daylight
In Round Lake Park, the average length of the day in August is 13h and 50min.On the first day of the month, sunrise is at 5:45 am and sunset at 8:11 pm. On the last day of August, sunrise is at 6:17 am and sunset at 7:27 pm CDT.
Sunshine
August has the most sunshine of the year in Round Lake Park, with an average of 10.2h of sunshine.UV index
The months with the highest UV index are July and August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 6 in August translates into these instructions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are August temperatures in Round Lake Park?
What is the average humidity in August in Round Lake Park?
How many days does it rain in August in Round Lake Park?
When it does not snow in Round Lake Park?
How many hours of daylight does Round Lake Park have in August?
When are sunrise and sunset in August in Round Lake Park?
What month has the most sunshine in Round Lake Park?
How many hours of sunshine does Round Lake Park have in August?
What is the month with the highest UV index in Round Lake Park?
What is the UV index reading in August in Round Lake Park?
Average temperature in August
Round Lake Park, IL
- Average high temperature in August: 78.6°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (27.5°F).
- Average low temperature in August: 63.1°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure in August
Round Lake Park, IL
- Average pressure in August: 29.98"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Round Lake Park, IL
- Average wind speed in August: 6.4mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in August
Round Lake Park, IL
- Average humidity in August: 79%
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
Round Lake Park, IL
- Average rainfall in August: 2.64"
The wettest month (with the highest rainfall) is April (2.72").
The driest month (with the least rainfall) is December (0.98").
Average rainfall days in August
Round Lake Park, IL
- Average rainfall days in August: 16 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is February (5 days).
Average snowfall in August
Round Lake Park, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (3.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Round Lake Park, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Round Lake Park, 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 1min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in August
Round Lake Park, IL
- Average sunshine days in August: 11.7 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in August
Round Lake Park, IL
- Average UV index in August: 6
The months with the highest UV index are 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
Round Lake Park, IL
- Average cloud cover in August: 30
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July, August and September (Cloud cover 30).
Average visibility in August
Round Lake Park, IL
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Round Lake Park, Illinois, USA
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