September weather forecast
Bath, IL

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Bath, Illinois, with temperature in the range of an average low of 58.5°F (14.7°C) and an average high of 77.2°F (25.1°C).

Temperature

As Bath welcomes September, the average high-temperature records at a still moderately hot 77.2°F (25.1°C), marking an insignificant deviation from the prior month. September sees the temperature falling to a mean low of 58.5°F (14.7°C).

Humidity

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

Rainfall

In September, the rain falls for 11.5 days. Throughout September, 2.6" (66mm) of precipitation is accumulated. Throughout the year, there are 142.9 rainfall days, and 28.31" (719mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Bath.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:28 am and sunset at 7:31 pm. On the last day of September, sunrise is at 6:56 am and sunset at 6:43 pm CDT.

Sunshine

In September, the average sunshine is 9.4h.

UV index

In Bath, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Updated: Jun 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

Bath in September has an average high-temperature of 77.2°F (25.1°C) and an average low-temperature of 58.5°F (14.7°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is computed to be 89.6°F (32°C).

What is the average humidity in September?

In September, the average relative humidity is 75%.

How much does it rain in September?

In Bath, in September, it is raining for 11.5 days, with typically 2.6" (66mm) of accumulated precipitation.

When it does not snow?

In Bath, snow does not fall in May through September.

Does it snow in September?

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

How many hours of daylight does Bath have in September?

The average day length in September is 12h and 26min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:28 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:43 pm CDT.

How many hours of sunshine does Bath have in September?

In September, the average sunshine duration is 9.4h.

What is the UV index intensity in September?

In Bath, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
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
Bath, IL

Average temperature in September - Bath, IL
  • Average high temperature in September: 77.2°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (31.8°F).

  • Average low temperature in September: 58.5°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in September
Bath, IL

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in September
Bath, IL

Average wind speed in September - Bath, IL
  • Average wind speed in September: 7.3mph

The windiest months (with the highest average wind speed) are January, February and April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average humidity in September
Bath, IL

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

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Bath, IL

Average rainfall in September - Bath, IL
  • Average rainfall in September: 2.6"

The wettest month (with the highest rainfall) is May (3.86").
The driest month (with the least rainfall) is December (1.38").

Average rainfall days in September
Bath, IL

Average rainfall days in September - Bath, IL
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5.8 days).

Average snowfall in September
Bath, IL

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

The month with the highest snowfall is January (3.5").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Bath, IL

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

The month with the highest number of snowfall days is January (9.2 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
Bath, IL

Average daylight in September / Average sunshine in September - Bath, 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 month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in September
Bath, IL

Average sunshine days in September - Bath, IL
  • Average sunshine days in September: 16.3 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.1 days).

Average UV index in September
Bath, IL

Average UV index in September - Bath, 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
Bath, IL

Average cloud cover in September - Bath, IL
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July, August and September (Cloud cover 29).

Average visibility in September
Bath, IL

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

The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).

Bath, Illinois, USA

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