September weather forecast
Papineau, IL

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Weather in September

September, the first month of the autumn in Papineau, is also a moderately hot month, with temperature in the range of an average low of 57.2°F (14°C) and an average high of 75.2°F (24°C).

Temperature

The average high-temperature during September is a still moderately hot 75.2°F (24°C), almost matching the conditions of the preceding month. The nights of September in Papineau anticipate an average low-temperature of 57.2°F (14°C).

Humidity

The average relative humidity in September in Papineau is 77%.

Rainfall

In Papineau, during September, the rain falls for 11.9 days and regularly aggregates up to 1.38" (35mm) of precipitation. Throughout the year, in Papineau, there are 138.7 rainfall days, and 21.77" (553mm) of precipitation is accumulated.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of the month, sunrise is at 6:18 am and sunset at 7:22 pm. On the last day of September, sunrise is at 6:47 am and sunset at 6:33 pm CDT.

Sunshine

In Papineau, the average sunshine in September is 8.5h.

UV index

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 4 during September translates into the following guidance:
Act with care - Obligation to protect against skin and eye damage is highlighted. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in Papineau?

In Papineau, 75.2°F (24°C) is the average high-temperature and 57.2°F (14°C) is the average low-temperature during September. In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is calculated to be 87.8°F (31°C).

What is the average humidity in September in Papineau?

In Papineau, Illinois, the average relative humidity in September is 77%.

How much does it rain in Papineau in September?

In Papineau, in September, it is raining for 11.9 days, with typically 1.38" (35mm) of accumulated precipitation.

When it does not snow in Papineau?

May through September are months without snowfall in Papineau, Illinois.

Does it snow in Papineau in September?

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

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

In September, the average day length in Papineau is 12h and 27min.

What time are sunrise and sunset in September in Papineau?

On the first day of September, sunrise is at 6:18 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:33 pm CDT.

How long on average sun shines in September in Papineau?

In Papineau, the average sunshine duration in September is 8.5h.

How high is the UV index in September in Papineau?

The average daily maximum UV index in September is 4. A UV Index reading 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
Papineau, IL

Average temperature in September - Papineau, IL
  • Average high temperature in September: 75.2°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.2°F).

  • Average low temperature in September: 57.2°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure in September
Papineau, IL

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
Papineau, IL

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

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in September
Papineau, IL

Average humidity in September - Papineau, IL
  • Average humidity in September: 77%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Papineau, IL

Average rainfall in September - Papineau, IL
  • Average rainfall in September: 1.38"

The wettest month (with the highest rainfall) is May (3.19").
The driest months (with the least rainfall) are January, February and December (1.06").

Average rainfall days in September
Papineau, IL

Average rainfall days in September - Papineau, IL
  • Average rainfall days in September: 11.9 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (5.1 days).

Average snowfall in September
Papineau, IL

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

The month with the highest snowfall is February (2.48").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Papineau, IL

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

The month with the highest number of snowfall days is January (10.8 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
Papineau, IL

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 8h and 3min

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 42min).

Average sunshine days in September
Papineau, IL

Average sunshine days in September - Papineau, IL
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (10 days).

Average UV index in September
Papineau, IL

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

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

Average cloud cover in September
Papineau, IL

Average cloud cover in September - Papineau, IL
  • Average cloud cover in September: 34

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 34).

Average visibility in September
Papineau, IL

Average visibility in September - Papineau, 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).

Papineau, Illinois, USA

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