September weather forecast
Oquawka, IL

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Weather in September

The first month of the autumn, September, is still a warm month in Oquawka, Illinois, with an average temperature varying between 56.7°F (13.7°C) and 76.5°F (24.7°C).

Temperature

September's arrival brings an average high-temperature of a still warm 76.5°F (24.7°C), demonstrating subtle variation from the preceding month. In the month of September, the average temperature dips to a refreshing 56.7°F (13.7°C) during the night.

Humidity

The average relative humidity in September is 75%.

Rainfall

In Oquawka, Illinois, in September, it is raining for 11.5 days, with typically 2.68" (68mm) of accumulated precipitation. Throughout the year, there are 150.9 rainfall days, and 30.87" (784mm) of precipitation is accumulated.

Snowfall

In Oquawka, 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 September, sunrise is at 6:31 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:46 pm CDT.

Sunshine

In September, the average sunshine is 9.3h.

UV index

In Oquawka, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Take precautions - Protection against skin and eye damage is obliged. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

The high-temperature, in September, in Oquawka, is 76.5°F (24.7°C), while the low-temperature averages to 56.7°F (13.7°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is appraised at 87.8°F (31°C).

What is the average humidity in September?

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

How many days does it rain in September?

In Oquawka, during September, the rain falls for 11.5 days and regularly aggregates up to 2.68" (68mm) of precipitation.

When it does not snow in Oquawka?

May through September are months without snowfall.

Does it snow in Oquawka in September?

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

How many hours of daylight does Oquawka have in September?

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

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:31 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:46 pm CDT.

How many hours of sunshine does Oquawka have in September?

The average sunshine duration in September in Oquawka is 9.3h.

How high is the UV index in September?

In Oquawka, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents 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
Oquawka, IL

Average temperature in September - Oquawka, IL
  • Average high temperature in September: 76.5°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in September: 56.7°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

Average pressure in September
Oquawka, IL

Average pressure in September - Oquawka, 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 (29.9"Hg).

Average wind speed in September
Oquawka, IL

Average wind speed in September - Oquawka, IL
  • Average wind speed in September: 7.8mph

The windiest months (with the highest average wind speed) are January and April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

Average humidity in September
Oquawka, IL

Average humidity in September - Oquawka, 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 (70%).

Average rainfall in September
Oquawka, IL

Average rainfall in September - Oquawka, IL
  • Average rainfall in September: 2.68"

The wettest month (with the highest rainfall) is May (4.57").
The driest months (with the least rainfall) are January and December (1.46").

Average rainfall days in September
Oquawka, IL

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

The month with the highest number of rainy days is May (19.9 days).
The month with the least rainy days is February (5.7 days).

Average snowfall in September
Oquawka, IL

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

The month with the highest snowfall is January (4.06").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Oquawka, IL

Average snowfall days in September - Oquawka, 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
Oquawka, IL

Average daylight in September / Average sunshine in September - Oquawka, 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: 9h and 2min

The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in September
Oquawka, IL

Average sunshine days in September - Oquawka, IL
  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is June (8.3 days).

Average UV index in September
Oquawka, IL

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

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

Average cloud cover in September
Oquawka, IL

Average cloud cover in September - Oquawka, IL
  • Average cloud cover in September: 30

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 30).

Average visibility in September
Oquawka, IL

Average visibility in September - Oquawka, 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).

Oquawka, Illinois, USA

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