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September Weather in Carlinville, United States

Last updated: June 24, 2025

In September, the average temperature in Carlinville, United States is a pleasant 22°C (71°F). Expect temperature fluctuations, with a minimum of 6°C (43°F) and a maximum of 34°C (93°F). This month experiences about 69 mm (2.7 in) of precipitation over 6 days, contributing to an average humidity of 76%. Enjoy the warm days but be prepared for a few showers!

September Temperature in Carlinville

In September in Carlinville, the average temperature is 22°C (71°F). Maximum temperatures can reach 34°C (93°F), while minimums can drop as low as 6°C (43°F). This makes it a great time to explore Carlinville with a diverse range of weather conditions to suit different activities.

September Weather in Carlinville: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Carlinville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Carlinville, September typically has an average temperature of 22°C (71°F), with highs reaching up to 34°C (93°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec303345546675787571584337
Data source: Temperature data for Carlinville generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Carlinville

In Carlinville in September, the precipitation amount is 69 mm (2.7 in) over a period of 6 days.

September Precipitation Trends in Carlinville

The chart displays monthly precipitation patterns in Carlinville, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Carlinville, September typically receives around 69 mm (2.7 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec717613412715412197118691007353
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Carlinville

In Carlinville in September, humidity is 76%. With an average temperature of 22°C (71°F), this humidity feels like traveling through a warm, dense mist that clings to your skin, making every step feel heavier and the air seem thicker, which can be quite draining for outdoor activities.

September Average Humidity in Carlinville

This chart illustrates the average monthly humidity levels in Carlinville, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Carlinville is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%80%82%83%81%80%76%76%85%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Carlinville

In Carlinville in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Carlinville.

Maximum UV Index Levels in Carlinville for September

The chart shows the monthly maximum UV Index (UVI) for Carlinville in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Carlinville typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111199643
Data source: Carlinville September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Carlinville Compares to Other Months

Weather in Carlinville varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Carlinville, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Carlinville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)71 mm (2.8 inches)82%moderate
February Weather1°C (33°F)76 mm (3.0 inches)80%moderate
March Weather7°C (45°F)134 mm (5.3 inches)80%high
April Weather12°C (54°F)127 mm (5.0 inches)80%very high
May Weather19°C (66°F)154 mm (6.1 inches)82%very high
June Weather24°C (76°F)121 mm (4.8 inches)83%extreme
July Weather26°C (78°F)97 mm (3.8 inches)81%extreme
August Weather24°C (75°F)118 mm (4.6 inches)80%very high
September Weather22°C (71°F)69 mm (2.7 inches)76%very high
October Weather14°C (58°F)100 mm (3.9 inches)76%high
November Weather6°C (43°F)73 mm (2.9 inches)85%moderate
December Weather3°C (37°F)53 mm (2.1 inches)86%moderate

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