September weather forecast
Paw Paw, IL

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Weather in September

September marks the arrival of fall in Paw, with its mild weather and shorter daylight hours signaling an end to the summer. The days of scorching heat are replaced with a more moderate climate, welcoming the charming autumn season. Even so, September still carries some summer remnants with a peak temperature of 74.3°F (23.5°C). The return of chillier nights and the fall foliage blossoming into warm hues are key indications of the seasonal shift. Although rainfall is relatively mild, it plays an integral role in enhancing the lush colors of Paw's spectacular fall scenery.

Temperature

Paw, Illinois, marks the onset of September with an average high-temperature of a still warm 74.3°F (23.5°C), subtly divergent from August's 79.3°F (26.3°C). Throughout the month of September, Paw observes an average nighttime temperature of 55.8°F (13.2°C).

Humidity

In September, the average relative humidity in Paw, Illinois, is 79%.

Rainfall

In September, in Paw, the rain falls for 8.8 days. Throughout September, 0.75" (19mm) of precipitation is accumulated. Throughout the year, there are 109.6 rainfall days, and 10.31" (262mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In Paw, Illinois, the average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:22 am and sunset at 7:28 pm. On the last day of September, in Paw, sunrise is at 6:52 am and sunset at 6:38 pm CDT.

Sunshine

In Paw, the average sunshine in September is 8.7h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: An average maximum UV index of 4 in September leads to these recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September in Paw?

In September, the average high-temperature and low-temperature are 74.3°F (23.5°C) and 55.8°F (13.2°C) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in July is estimated at 86°F (30°C).

What is the average humidity in September in Paw?

In September, the average relative humidity is 79%.

How much does it rain in Paw in September?

In Paw, Illinois, during September, the rain falls for 8.8 days and regularly aggregates up to 0.75" (19mm) of precipitation.

When it does not snow in Paw?

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

Does it snow in Paw in September?

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

What is the average length of the day in September in Paw?

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

When is the sunrise / sunset in September in Paw?

On the first day of September in Paw, Illinois, sunrise is at 6:22 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:38 pm CDT.

How many hours of sunshine does Paw have in September?

In September, the average sunshine duration is 8.7h.

What is the UV index reading in September in Paw?

The average daily maximum UV index in September in Paw is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Paw Paw, IL

Average temperature in September - Paw Paw, IL
  • Average high temperature in September: 74.3°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in September: 55.8°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

Average pressure in September
Paw Paw, IL

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

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
Paw Paw, IL

Average wind speed in September - Paw Paw, IL
  • Average wind speed in September: 7.2mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

Average humidity in September
Paw Paw, IL

Average humidity in September - Paw Paw, IL
  • Average humidity in September: 79%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (73%).

Average rainfall in September
Paw Paw, IL

Average rainfall in September - Paw Paw, IL
  • Average rainfall in September: 0.75"

The wettest month (with the highest rainfall) is May (1.54").
The driest month (with the least rainfall) is February (0.47").

Average rainfall days in September
Paw Paw, IL

Average rainfall days in September - Paw Paw, IL
  • Average rainfall days in September: 8.8 days

The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (3.8 days).

Average snowfall in September
Paw Paw, IL

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

The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Paw Paw, IL

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

The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Paw Paw, 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: 8h and 4min

The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in September
Paw Paw, IL

Average sunshine days in September - Paw Paw, IL
  • Average sunshine days in September: 19.9 days

The months with the most sunshine days are January and December (21.3 days).
The month with the least sunshine days is May (14.2 days).

Average UV index in September
Paw Paw, IL

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in September
Paw Paw, IL

Average cloud cover in September - Paw Paw, IL
  • Average cloud cover in September: 33

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 33).

Average visibility in September
Paw Paw, IL

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

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

Paw Paw, Illinois, USA

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