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, the average high-temperature stands at a still warm 78.4°F (25.8°C), closely aligned with July's 79.9°F (26.6°C). Island Lake experiences a mean temperature of 62.2°F (16.8°C) during August nights.Humidity
In Island Lake, the average relative humidity in August is 81%.Rainfall
In August, in Island Lake, the rain falls for 16.3 days. Throughout August, 2.68" (68mm) of precipitation is accumulated. In Island Lake, during the entire year, the rain falls for 151.2 days and collects up to 24.17" (614mm) of precipitation.Snowfall
June through September are months without snowfall in Island Lake.Daylight
The average length of the day in August in Island Lake is 13h and 50min.On the first day of the month, sunrise is at 5:46 am and sunset at 8:11 pm. On the last day of August, in Island Lake, sunrise is at 6:17 am and sunset at 7:27 pm CDT.
Sunshine
The average sunshine in August is 9.9h.UV index
August is the month with the highest UV index, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.Note: In August, the maximum UV index of 6 suggests these recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 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. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Island Lake in August?
What is the average humidity in August in Island Lake?
How much does it rain in Island Lake in August?
When it does not snow in Island Lake?
What is the average length of the day in August in Island Lake?
When are sunrise and sunset in August in Island Lake?
How long on average sun shines in August in Island Lake?
What is the month with the highest UV index in Island Lake?
What is the UV index intensity in August in Island Lake?
Average temperature in August
Island Lake, IL
- Average high temperature in August: 78.4°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°F).
- Average low temperature in August: 62.2°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in August
Island Lake, 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
Island Lake, IL
- Average wind speed in August: 6.2mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in August
Island Lake, IL
- Average humidity in August: 81%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall in August
Island Lake, IL
- Average rainfall in August: 2.68"
The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is December (1.1").
Average rainfall days in August
Island Lake, IL
- Average rainfall days in August: 16.3 days
The month with the highest number of rainy days is July (18.8 days).
The months with the least rainy days are January and February (5.3 days).
Average snowfall in August
Island Lake, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Island Lake, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Island Lake, 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: 9h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in August
Island Lake, IL
- Average sunshine days in August: 10.6 days
The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (10 days).
Average UV index in August
Island Lake, IL
- Average UV index in August: 6
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Island Lake, IL
- Average cloud cover in August: 31
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in August
Island Lake, 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).
Island Lake, Illinois, USA
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