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
Entering August, Symerton's average high-temperature reads a still moderately hot 79.7°F (26.5°C), indicating a close resemblance to the previous month's climate. Symerton experiences a mean low-temperature of 62.6°F (17°C) during August.Humidity
In August, the average relative humidity is 83%.Rainfall
In Symerton, in August, during 17 rainfall days, 2.95" (75mm) of precipitation is typically accumulated. Throughout the year, there are 160.4 rainfall days, and 33.5" (851mm) of precipitation is accumulated.Snowfall
In Symerton, snow does not fall in May through September.Daylight
In August, the average length of the day is 13h and 47min.On the first day of the month, sunrise is at 5:48 am and sunset at 8:08 pm. On the last day of August, sunrise is at 6:18 am and sunset at 7:26 pm CDT.
Sunshine
June through August, with an average of 9.8h of sunshine, are months with the most sunshine.UV index
In Symerton, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 5 during August translates into the following guidance:
Guard yourself - Precautionary measures against sun damage are advocated. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in August?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
How many hours of daylight does Symerton have in August?
What time are sunrise and sunset in August?
What is the month with the most sunshine in Symerton?
How long on average sun shines in August?
How high is the UV index in August?
Average temperature in August
Symerton, IL
- Average high temperature in August: 79.7°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 (29.7°F).
- Average low temperature in August: 62.6°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in August
Symerton, IL
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Symerton, IL
- Average wind speed in August: 6mph
The windiest months (with the highest average wind speed) are January and April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in August
Symerton, IL
- Average humidity in August: 83%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in August
Symerton, IL
- Average rainfall in August: 2.95"
The wettest month (with the highest rainfall) is May (4.57").
The driest months (with the least rainfall) are February and November (1.69").
Average rainfall days in August
Symerton, IL
- Average rainfall days in August: 17 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in August
Symerton, IL
- Average snowfall in August: 0"
The month with the highest snowfall is February (4.29").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Symerton, IL
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (10.6 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
Symerton, IL
- Average daylight in August: 13h and 5min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 9h and 5min
The months with the most sunshine are June, July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in August
Symerton, IL
- Average sunshine days in August: 9.4 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is July (8.6 days).
Average UV index in August
Symerton, IL
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Symerton, IL
- Average cloud cover in August: 33
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in August
Symerton, IL
- Average visibility in August: 5mi
The months with the highest visibility are January, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are February, July and August (5mi).
Symerton, Illinois, USA
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