nomadseason

September Weather in Carrollton, United States

Last updated: June 24, 2025

In September, the average temperature in Carrollton, United States sits at a pleasant 22°C (72°F). Expect fluctuations between a cool 5°C (41°F) and a warm 35°C (95°F). During this time, anticipate approximately 75 mm (2.9 in) of precipitation spread over about 6 days, contributing to an average humidity of 72%.

September Temperature in Carrollton

In September in Carrollton, the average temperature is 22°C (72°F), with maximums reaching 35°C (95°F) and minimums dropping to as low as 5°C (41°F). This wide temperature range makes it essential for travelers to pack both light clothing for the warm days and warmer layers for the cooler evenings.

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

The chart illustrates September temperature patterns in Carrollton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Carrollton, September typically has an average temperature of 22°C (72°F), with highs reaching up to 35°C (95°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec313346546677797672574438
Data source: Temperature data for Carrollton generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Carrollton

In Carrollton in September, the precipitation amount is 75 mm (2.9 in) over the course of 6 days.

September Precipitation Trends in Carrollton

The chart displays monthly precipitation patterns in Carrollton, 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 Carrollton, September typically receives around 75 mm (2.9 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec59501119021712310387751124734
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Carrollton

In Carrollton in September humidity is 72%. With an average temperature of 22°C (72°F), this humidity feels like you are stepping into a warm, embracing blanket, making traveling feel sweaty and slightly stifling, but the balmy weather is also quite perfect for exploring local attractions.

September Average Humidity in Carrollton

This chart illustrates the average monthly humidity levels in Carrollton, 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 Carrollton is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%78%75%77%82%83%81%78%72%72%84%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Carrollton

In Carrollton 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 Carrollton.

Maximum UV Index Levels in Carrollton for September

The chart shows the monthly maximum UV Index (UVI) for Carrollton 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 Carrollton typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109643
Data source: Carrollton 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 Carrollton Compares to Other Months

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

This table compares monthly weather conditions in Carrollton, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)59 mm (2.3 inches)80%moderate
February Weather0°C (33°F)50 mm (2.0 inches)78%moderate
March Weather8°C (46°F)111 mm (4.4 inches)75%high
April Weather12°C (54°F)90 mm (3.5 inches)77%very high
May Weather19°C (66°F)217 mm (8.5 inches)82%very high
June Weather25°C (77°F)123 mm (4.8 inches)83%extreme
July Weather26°C (79°F)103 mm (4.0 inches)81%extreme
August Weather25°C (77°F)87 mm (3.4 inches)78%very high
September Weather22°C (72°F)75 mm (2.9 inches)72%very high
October Weather14°C (58°F)112 mm (4.4 inches)72%high
November Weather7°C (44°F)47 mm (1.9 inches)84%moderate
December Weather3°C (38°F)34 mm (1.4 inches)86%moderate

Compare Carrollton's Climate with Cities Worldwide