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
The advent of August signifies a minor shift to an average high-temperature of a still moderately hot 78.4°F (25.8°C), aligning closely with July. Leaf River experiences an average low-temperature of 61°F (16.1°C) in month of August.Humidity
In Leaf River, the average relative humidity in August is 84%.Rainfall
In Leaf River, Illinois, during August, the rain falls for 16.7 days and regularly aggregates up to 2.68" (68mm) of precipitation. Throughout the year, there are 154.8 rainfall days, and 32.36" (822mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Leaf River.Daylight
In August, the average length of the day in Leaf River is 13h and 50min.On the first day of the month, sunrise is at 5:51 am and sunset at 8:16 pm. On the last day of August, sunrise is at 6:22 am and sunset at 7:32 pm CDT.
Sunshine
In Leaf River, the average sunshine in August is 9.4h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index in Leaf River. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In August, the maximum UV index of 5 translates into these guidelines:
Be vigilant - Suggestions to stave off sun damage are provided. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in August in Leaf River?
What is the average humidity in August in Leaf River?
How much does it rain in Leaf River in August?
When it does not snow in Leaf River?
What is the average length of the day in August in Leaf River?
When are sunrise and sunset in August in Leaf River?
How many hours of sunshine does Leaf River have in August?
When is the highest UV index in Leaf River?
How high is the UV index in August in Leaf River?
Average temperature in August
Leaf River, 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 (26.1°F).
- Average low temperature in August: 61°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).
Average pressure in August
Leaf River, IL
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Leaf River, IL
- Average wind speed in August: 6.4mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in August
Leaf River, IL
- Average humidity in August: 84%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall in August
Leaf River, IL
- Average rainfall in August: 2.68"
The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is February (1.57").
Average rainfall days in August
Leaf River, IL
- Average rainfall days in August: 16.7 days
The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in August
Leaf River, IL
- Average snowfall in August: 0"
The month with the highest snowfall is January (5.79").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Leaf River, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Leaf River, 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 2min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in August
Leaf River, IL
- Average sunshine days in August: 11.4 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in August
Leaf River, IL
- Average UV index in August: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in August
Leaf River, IL
- Average cloud cover in August: 35
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in August
Leaf River, IL
- Average visibility in August: 5mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
Leaf River, Illinois, USA
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