September weather forecast
Antioch, IL

Weather in September

September, the first month of the autumn in Antioch, is also an agreeable month, with an average temperature ranging between min 55°F (12.8°C) and max 71.6°F (22°C).

Temperature

In Antioch, the average high-temperature in September slightly decreases from a warm 77.5°F (25.3°C) in August to an agreeable 71.6°F (22°C). The average low-temperature, in September, is 55°F (12.8°C).

Humidity

In Antioch, the average relative humidity in September is 80%.

Rainfall

In Antioch, in September, during 12.5 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. In Antioch, during the entire year, the rain falls for 139.6 days and collects up to 26.18" (665mm) of precipitation.

Snowfall

In Antioch, Illinois, snow does not fall in June through September.

Daylight

In September, the average length of the day in Antioch, Illinois, is 12h and 28min.
On the first day of the month, sunrise is at 6:17 am and sunset at 7:26 pm. On the last day of September, sunrise is at 6:48 am and sunset at 6:35 pm CDT.

Sunshine

The average sunshine in September is 8.9h.

UV index

In Antioch, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
[Resources]

FAQ

What is the average humidity in September in Antioch?

In September, the average relative humidity in Antioch, Illinois, is 80%.

How many days does it rain in September in Antioch?

In September, the rain falls for 12.5 days. Throughout September, 1.89" (48mm) of precipitation is accumulated.

When it does not snow in Antioch?

June through September are months without snowfall in Antioch.

Does it snow in Antioch in September?

In Antioch, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Antioch have in September?

In September, the average day length in Antioch, Illinois, is 12h and 28min.

When is the sunrise / sunset in September in Antioch?

On the first day of September, sunrise is at 6:17 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:35 pm CDT.

How long on average sun shines in September in Antioch?

In Antioch, the average sunshine duration in September is 8.9h.

What is the UV index reading in September in Antioch?

In Antioch, Illinois, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Antioch, IL

Average temperature in September - Antioch, IL
  • Average high temperature in September: 71.6°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in September: 55°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 (14.9°F).

[Resources]

Average pressure in September
Antioch, IL

Average pressure in September - Antioch, IL
  • Average pressure in September: 30.03"Hg

The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

[Resources]

Average wind speed in September
Antioch, IL

Average wind speed in September - Antioch, IL
  • Average wind speed in September: 7.5mph

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

[Resources]

Average humidity in September
Antioch, IL

Average humidity in September - Antioch, IL
  • Average humidity in September: 80%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (76%).

[Resources]

Average rainfall in September
Antioch, IL

Average rainfall in September - Antioch, IL
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is December (1.06").

[Resources]

Average rainfall days in September
Antioch, IL

Average rainfall days in September - Antioch, IL
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is February (3.4 days).

[Resources]

Average snowfall in September
Antioch, IL

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

The month with the highest snowfall is January (4.33").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in September
Antioch, IL

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

The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight in September /
Average sunshine in September
Antioch, IL

Average daylight in September / Average sunshine in September - Antioch, IL
  • Average daylight in September: 12h and 28min

The month with the longest days is June (Average daylight: 15h and 15min).
The month with the shortest days is December (Average daylight: 9h and 8min).

  • Average sunshine in September: 8h and 54min

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The months with the least sunshine are January and February (Average sunshine: 3h and 36min).

[Resources]

Average sunshine days in September
Antioch, IL

Average sunshine days in September - Antioch, IL
  • Average sunshine days in September: 14.6 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (9.9 days).

[Resources]

Average UV index in September
Antioch, IL

Average UV index in September - Antioch, IL
  • Average UV index in September: 4

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).

[Resources]

Average cloud cover in September
Antioch, IL

Average cloud cover in September - Antioch, IL
  • Average cloud cover in September: 32

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July, August and September (Cloud cover 32).

[Resources]

Average visibility in September
Antioch, IL

Average visibility in September - Antioch, 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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location