Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September's onset records an average high-temperature of a still moderately hot 76.1°F (24.5°C), a near match to August's 81.1°F (27.3°C). Waynesville's nighttime temperature during September is consistently averaged at a mild 58.3°F (14.6°C).Humidity
In September, the average relative humidity is 76%.Rainfall
In Waynesville, Illinois, in September, during 11.4 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. In Waynesville, during the entire year, the rain falls for 135 days and collects up to 17.72" (450mm) of precipitation.Snowfall
May through October are months without snowfall in Waynesville, Illinois.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:27 pm. On the last day of September, in Waynesville, Illinois, sunrise is at 6:52 am and sunset at 6:39 pm CDT.
Sunshine
The average sunshine in September in Waynesville is 9.2h.UV index
In Waynesville, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In September, an average UV index of 5 transforms into the following instructions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Waynesville in September?
What is the average humidity in September in Waynesville?
How many days does it rain in September in Waynesville?
When it does not snow in Waynesville?
How many hours of daylight does Waynesville have in September?
When is the sunrise / sunset in September in Waynesville?
How many hours of sunshine does Waynesville have in September?
What is the UV index intensity in September in Waynesville?
Average temperature in September
Waynesville, IL
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in September: 58.3°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Waynesville, IL
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Waynesville, IL
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in September
Waynesville, IL
- Average humidity in September: 76%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Waynesville, IL
- Average rainfall in September: 1.46"
The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is December (0.87").
Average rainfall days in September
Waynesville, IL
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in September
Waynesville, IL
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.2").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Waynesville, IL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Waynesville, IL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Waynesville, IL
- Average sunshine days in September: 17.1 days
The months with the most sunshine days are November and December (20 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in September
Waynesville, IL
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Waynesville, IL
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in September
Waynesville, IL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Waynesville, Illinois, USA
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