September weather forecast
Worth, IL

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Worth, Illinois, with an average temperature ranging between min 59.2°F (15.1°C) and max 73.6°F (23.1°C).

Temperature

As September arrives, Worth's weather displays a minor decrease in high-temperatures, transitioning from August's moderately hot 79.9°F (26.6°C) to a still warm 73.6°F (23.1°C). The nights of September in Worth anticipate an average low-temperature of 59.2°F (15.1°C).

Humidity

The average relative humidity in September is 75%.

Rainfall

In Worth, in September, it is raining for 13.5 days, with typically 1.97" (50mm) of accumulated precipitation. In Worth, during the entire year, the rain falls for 147.7 days and collects up to 23.62" (600mm) of precipitation.

Snowfall

May through September are months without snowfall in Worth.

Daylight

The average length of the day in September in Worth is 12h and 28min.
On the first day of September in Worth, Illinois, sunrise is at 6:17 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:34 pm CDT.

Sunshine

The average sunshine in September in Worth is 9.1h.

UV index

The average daily maximum UV index in September in Worth is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 4 during September translates into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures in Worth?

An average high-temperature, in September, in Worth, is 73.6°F (23.1°C) and the average low-temperature is 59.2°F (15.1°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in July is appraised at 86°F (30°C).

What is the average humidity in September in Worth?

In September, the average relative humidity in Worth, Illinois, is 75%.

How many days does it rain in September in Worth?

In Worth, Illinois, in September, during 13.5 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

When it does not snow in Worth?

In Worth, Illinois, snow does not fall in May through September.

Does it snow in Worth in September?

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

How many hours of daylight does Worth have in September?

The average day length in September in Worth is 12h and 28min.

When are sunrise and sunset in September in Worth?

On the first day of September in Worth, sunrise is at 6:17 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:34 pm CDT.

How long on average sun shines in September in Worth?

The average sunshine duration in September in Worth, Illinois, is 9.1h.

What is the UV index intensity in September in Worth?

In September, the average daily maximum UV index in Worth is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe 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
Worth, IL

Average temperature in September - Worth, IL
  • Average high temperature in September: 73.6°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.5°F).

  • Average low temperature in September: 59.2°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 (18.9°F).

Average pressure in September
Worth, IL

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
Worth, IL

Average wind speed in September - Worth, IL
  • Average wind speed in September: 7.7mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in September
Worth, IL

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

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Worth, IL

Average rainfall in September - Worth, IL
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (1.02").

Average rainfall days in September
Worth, IL

Average rainfall days in September - Worth, IL
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (4.9 days).

Average snowfall in September
Worth, IL

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

The month with the highest snowfall is February (3.07").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Worth, IL

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

The month with the highest number of snowfall days is January (11.8 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
Worth, IL

Average daylight in September / Average sunshine in September - Worth, IL
  • Average daylight in September: 12h and 3min

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 September: 9h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in September
Worth, IL

Average sunshine days in September - Worth, IL
  • Average sunshine days in September: 13 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (9.8 days).

Average UV index in September
Worth, IL

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

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in September
Worth, IL

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

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in September
Worth, IL

Average visibility in September - Worth, 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).

Worth, Illinois, USA

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