September weather forecast
Baldwin, IL

Share

Weather in September

The first month of the autumn, September, is also a moderately hot month in Baldwin, Illinois, with an average temperature ranging between min 60.3°F (15.7°C) and max 79.7°F (26.5°C).

Temperature

A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a moderately hot 85.5°F (29.7°C) to a still warm 79.7°F (26.5°C). Baldwin, in the month of September, anticipates a consistent average low-temperature of 60.3°F (15.7°C).

Humidity

The average relative humidity in September in Baldwin is 74%.

Rainfall

In Baldwin, in September, it is raining for 11.8 days, with typically 1.57" (40mm) of accumulated precipitation. Throughout the year, in Baldwin, there are 138.9 rainfall days, and 26.81" (681mm) of precipitation is accumulated.

Snowfall

In Baldwin, snow does not fall in April through October.

Daylight

The average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 6:29 am and sunset at 7:28 pm. On the last day of September, in Baldwin, Illinois, sunrise is at 6:54 am and sunset at 6:43 pm CDT.

Sunshine

The average sunshine in September is 9.4h.

UV index

In Baldwin, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Baldwin in September?

In Baldwin, 79.7°F (26.5°C) is the average high-temperature and 60.3°F (15.7°C) is the average low-temperature during September. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 96.8°F (36°C).

What is the average humidity in September in Baldwin?

The average relative humidity in September is 74%.

How much does it rain in Baldwin in September?

In Baldwin, Illinois, in September, it is raining for 11.8 days, with typically 1.57" (40mm) of accumulated precipitation.

When it does not snow in Baldwin?

April through October are months without snowfall in Baldwin.

How many hours of daylight does Baldwin have in September?

In September, the average day length in Baldwin, Illinois, is 12h and 25min.

What time are sunrise and sunset in September in Baldwin?

On the first day of September in Baldwin, Illinois, sunrise is at 6:29 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:43 pm CDT.

How many hours of sunshine does Baldwin have in September?

In Baldwin, Illinois, the average sunshine duration in September is 9.4h.

What is the UV index intensity in September in Baldwin?

In September, the average daily maximum UV index in Baldwin is 5. A UV Index reading 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
Baldwin, IL

Average temperature in September - Baldwin, IL
  • Average high temperature in September: 79.7°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in September: 60.3°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

Average pressure in September
Baldwin, IL

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Baldwin, IL

Average wind speed in September - Baldwin, IL
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in September
Baldwin, IL

Average humidity in September - Baldwin, IL
  • Average humidity in September: 74%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Baldwin, IL

Average rainfall in September - Baldwin, IL
  • Average rainfall in September: 1.57"

The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is February (1.42").

Average rainfall days in September
Baldwin, IL

Average rainfall days in September - Baldwin, IL
  • Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is January (6.6 days).

Average snowfall in September
Baldwin, IL

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

The month with the highest snowfall is January (2.01").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Baldwin, IL

Average snowfall days in September - Baldwin, IL
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August and October (0 days).

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

Average daylight in September / Average sunshine in September - Baldwin, IL
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in September
Baldwin, IL

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

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is July (12.3 days).

Average UV index in September
Baldwin, IL

Average UV index in September - Baldwin, IL
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in September
Baldwin, IL

Average cloud cover in September - Baldwin, IL
  • Average cloud cover in September: 28

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in September
Baldwin, IL

Average visibility in September - Baldwin, 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).

Baldwin, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location