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September Weather in Cullman, United States

Last updated: June 24, 2025

In September, the average temperature in Cullman, United States is a comfortable 24°C (76°F). You can expect a minimum of 10°C (50°F) and a maximum of 36°C (97°F), making it a month of diverse weather conditions. With an average precipitation of 104 mm (4.1 in) spread over 8 days, don't forget your umbrella! The average humidity sits at a moderate 64%, ensuring a pleasant atmosphere overall.

September Temperature in Cullman

In September in Cullman, the average temperature is 24°C (76°F). Maximum temperatures can reach 36°C (97°F), while minimums can drop as low as 10°C (50°F). This makes Cullman a great destination for travelers seeking warm weather while also being prepared for cooler evenings.

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

The chart illustrates September temperature patterns in Cullman, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cullman, September typically has an average temperature of 24°C (76°F), with highs reaching up to 36°C (97°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec445056627177807975665148
Data source: Temperature data for Cullman 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 Cullman

In Cullman, in September, the precipitation amount is 104 mm (4.1 in) over a span of 8 days.

September Precipitation Trends in Cullman

The chart displays monthly precipitation patterns in Cullman, 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 Cullman, September typically receives around 104 mm (4.1 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec11718618414710012710610710513476157
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Cullman

In Cullman in September, humidity is 64%. With an average temperature of 24°C (76°F), this humidity feels like a warm, sticky embrace, making travel slightly uncomfortable but still enjoyable, as you may find yourself yearning for a refreshing breeze or a quick dip in the water.

September Average Humidity in Cullman

This chart illustrates the average monthly humidity levels in Cullman, 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 Cullman is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%85%82%83%82%78%67%64%75%87%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Cullman

In Cullman 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 Cullman.

Maximum UV Index Levels in Cullman for September

The chart shows the monthly maximum UV Index (UVI) for Cullman 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 Cullman typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810101111109764
Data source: Cullman 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 Cullman Compares to Other Months

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

This table compares monthly weather conditions in Cullman, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)117 mm (4.6 inches)87%moderate
February Weather10°C (50°F)186 mm (7.3 inches)87%high
March Weather13°C (56°F)184 mm (7.3 inches)85%very high
April Weather16°C (62°F)147 mm (5.8 inches)82%very high
May Weather22°C (72°F)100 mm (4.0 inches)83%very high
June Weather25°C (77°F)127 mm (5.0 inches)82%extreme
July Weather27°C (80°F)106 mm (4.2 inches)78%extreme
August Weather26°C (80°F)107 mm (4.2 inches)67%very high
September Weather24°C (76°F)104 mm (4.1 inches)64%very high
October Weather19°C (66°F)134 mm (5.3 inches)74%high
November Weather11°C (51°F)76 mm (3.0 inches)87%high
December Weather9°C (48°F)157 mm (6.2 inches)88%moderate

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