September weather forecast
Versailles, IL

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Versailles, Illinois, with an average temperature ranging between max 77.7°F (25.4°C) and min 58.1°F (14.5°C).

Temperature

A minimal variation is noted in Versailles's average high-temperature at the onset of September, reaching a still warm 77.7°F (25.4°C) from August's 82.9°F (28.3°C). The temperature dips to an average of 58.1°F (14.5°C) during September nights.

Humidity

The average relative humidity in September is 75%.

Rainfall

In September, the rain falls for 10.2 days. Throughout September, 2.2" (56mm) of precipitation is accumulated. Throughout the year, there are 132 rainfall days, and 22.17" (563mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Versailles, Illinois.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of September, sunrise is at 6:31 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:46 pm CDT.

Sunshine

In Versailles, the average sunshine in September is 9.4h.

UV index

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Take precautions - Protection against sunburn is recommended. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Updated: Jul 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

In Versailles, in September, the average high-temperature is 77.7°F (25.4°C), and the average low-temperature is 58.1°F (14.5°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is evaluated at 91.4°F (33°C).

What is the average humidity in September?

In September, the average relative humidity is 75%.

How many days does it rain in September in Versailles?

In Versailles, in September, it is raining for 10.2 days, with typically 2.2" (56mm) of accumulated precipitation.

When it does not snow?

May through October are months without snowfall in Versailles.

How many hours of daylight does Versailles have in September?

In September, the average day length is 12h and 26min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:31 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:46 pm CDT.

How many hours of sunshine does Versailles have in September?

The average sunshine duration in September is 9.4h.

What is the UV index intensity in September?

In Versailles, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Versailles, IL

Average temperature in September - Versailles, IL
  • Average high temperature in September: 77.7°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (32.7°F).

  • Average low temperature in September: 58.1°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in September
Versailles, IL

Average pressure in September - Versailles, IL
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in September
Versailles, IL

Average wind speed in September - Versailles, IL
  • Average wind speed in September: 7.1mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).

Average humidity in September
Versailles, IL

Average humidity in September - Versailles, IL
  • Average humidity in September: 75%

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Versailles, IL

Average rainfall in September - Versailles, IL
  • Average rainfall in September: 2.2"

The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is January (0.98").

Average rainfall days in September
Versailles, IL

Average rainfall days in September - Versailles, IL
  • Average rainfall days in September: 10.2 days

The month with the highest number of rainy days is May (16.9 days).
The months with the least rainy days are January and February (5.3 days).

Average snowfall in September
Versailles, IL

Average snowfall in September - Versailles, IL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (3.19").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Versailles, IL

Average snowfall days in September - Versailles, IL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (7.8 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
Versailles, IL

Average daylight in September / Average sunshine in September - Versailles, 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 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in September
Versailles, IL

Average sunshine days in September - Versailles, IL
  • Average sunshine days in September: 18.2 days

The month with the most sunshine days is January (20 days).
The month with the least sunshine days is May (11.4 days).

Average UV index in September
Versailles, IL

Average UV index in September - Versailles, 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
Versailles, IL

Average cloud cover in September - Versailles, IL
  • Average cloud cover in September: 30

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July, August and September (Cloud cover 30).

Average visibility in September
Versailles, IL

Average visibility in September - Versailles, IL
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Versailles, Illinois, USA

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