September weather forecast
Argenta, IL

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Weather in September

September, the first month of the autumn in Argenta, is also a moderately hot month, with an average temperature fluctuating between 58.3°F (14.6°C) and 76.6°F (24.8°C).

Temperature

September brings an average high-temperature of a still warm 76.6°F (24.8°C), showing a slight difference from August's 81.1°F (27.3°C). An average low-temperature of 58.3°F (14.6°C) is recorded during the nights in September in Argenta.

Humidity

In September, the average relative humidity is 76%.

Rainfall

In Argenta, in September, it is raining for 11.5 days, with typically 1.26" (32mm) of accumulated precipitation. In Argenta, during the entire year, the rain falls for 139.9 days and collects up to 20.91" (531mm) of precipitation.

Snowfall

In Argenta, snow does not fall in May through October.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of September, sunrise is at 6:23 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:38 pm CDT.

Sunshine

The average sunshine in September is 9h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Argenta in September?

In Argenta, 76.6°F (24.8°C) is the average high-temperature and 58.3°F (14.6°C) is the average low-temperature during September. The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in August is appraised at 87.8°F (31°C).

What is the average humidity in September?

In Argenta, the average relative humidity in September is 76%.

How many days does it rain in September?

In September, the rain falls for 11.5 days. Throughout September, 1.26" (32mm) of precipitation is accumulated.

When it does not snow?

In Argenta, snow does not fall in May through October.

What is the average length of the day in September?

In Argenta, the average day length in September is 12h and 26min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:23 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:38 pm CDT.

How long on average sun shines in September?

In Argenta, the average sunshine duration in September is 9h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's 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
Argenta, IL

Average temperature in September - Argenta, IL
  • Average high temperature in September: 76.6°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (32.4°F).

  • Average low temperature in September: 58.3°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure in September
Argenta, IL

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
Argenta, IL

Average wind speed in September - Argenta, IL
  • Average wind speed in September: 7.4mph

The windiest months (with the highest average wind speed) are January, February and April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average humidity in September
Argenta, IL

Average humidity in September - Argenta, IL
  • Average humidity in September: 76%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).

Average rainfall in September
Argenta, IL

Average rainfall in September - Argenta, IL
  • Average rainfall in September: 1.26"

The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is December (1.06").

Average rainfall days in September
Argenta, IL

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

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (6.2 days).

Average snowfall in September
Argenta, IL

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

The month with the highest snowfall is January (2.13").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Argenta, IL

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

The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 9h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in September
Argenta, IL

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

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is July (10.3 days).

Average UV index in September
Argenta, IL

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

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

Average cloud cover in September
Argenta, IL

Average cloud cover in September - Argenta, IL
  • Average cloud cover in September: 31

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 31).

Average visibility in September
Argenta, IL

Average visibility in September - Argenta, 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).

Argenta, Illinois, USA

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