September weather forecast
Monee, IL

Share

Weather in September

September, the first month of the autumn in Monee, is still a warm month, with an average temperature fluctuating between 57.2°F (14°C) and 74.8°F (23.8°C).

Temperature

A minimal variation is noted in Monee's average high-temperature at the onset of September, reaching a still moderately hot 74.8°F (23.8°C) from August's 80.1°F (26.7°C). Monee experiences a mean low-temperature of 57.2°F (14°C) during September.

Humidity

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

Rainfall

In Monee, in September, it is raining for 9.5 days, with typically 0.94" (24mm) of accumulated precipitation. Throughout the year, there are 115.5 rainfall days, and 11.65" (296mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Monee.

Daylight

The average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:18 am and sunset at 7:23 pm. On the last day of September, sunrise is at 6:47 am and sunset at 6:33 pm CDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
[Resources]

Frequently asked questions

What are September temperatures in Monee?

In Monee, in September, the average high-temperature is 74.8°F (23.8°C), and the average low-temperature is 57.2°F (14°C). In July, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is computed to be 87.8°F (31°C).

What is the average humidity in September in Monee?

In September, the average relative humidity is 77%.

How much does it rain in Monee in September?

In Monee, in September, during 9.5 rainfall days, 0.94" (24mm) of precipitation is typically accumulated.

When it does not snow in Monee?

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

Does it snow in Monee in September?

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

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

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

When is the sunrise / sunset in September in Monee?

On the first day of September, sunrise is at 6:18 am and sunset at 7:23 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 Monee?

In September, the average sunshine duration in Monee is 8.6h.

What is the UV index intensity in September in Monee?

The average daily maximum UV index in September in Monee is 4. A UV Index reading of 3 to 5 represents a moderate health threat 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
Monee, IL

Average temperature in September - Monee, IL
  • Average high temperature in September: 74.8°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in September: 57.2°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

[Resources]

Average pressure in September
Monee, IL

Average pressure in September - Monee, 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).

[Resources]

Average wind speed in September
Monee, IL

Average wind speed in September - Monee, IL
  • Average wind speed in September: 7mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6mph).

[Resources]

Average humidity in September
Monee, IL

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

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).

[Resources]

Average rainfall in September
Monee, IL

Average rainfall in September - Monee, IL
  • Average rainfall in September: 0.94"

The wettest month (with the highest rainfall) is May (1.77").
The driest month (with the least rainfall) is February (0.55").

[Resources]

Average rainfall days in September
Monee, IL

Average rainfall days in September - Monee, IL
  • Average rainfall days in September: 9.5 days

The month with the highest number of rainy days is May (14.2 days).
The month with the least rainy days is February (4.4 days).

[Resources]

Average snowfall in September
Monee, IL

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

The month with the highest snowfall is January (1.34").
The months with the least snowfall are May, June, July, August and September (0").

[Resources]

Average snowfall days in September
Monee, IL

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

The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

[Resources]

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

Average daylight in September / Average sunshine in September - Monee, 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 12min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

[Resources]

Average sunshine days in September
Monee, IL

Average sunshine days in September - Monee, IL
  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is November (20.8 days).
The months with the least sunshine days are June and July (12.2 days).

[Resources]

Average UV index in September
Monee, IL

Average UV index in September - Monee, 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).

[Resources]

Average cloud cover in September
Monee, IL

Average cloud cover in September - Monee, 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 August (Cloud cover 32).

[Resources]

Average visibility in September
Monee, IL

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

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

[Resources]

Monee, Illinois, USA

Weather forecast for your location

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