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September Weather in Red Oak, United States

Last updated: June 24, 2025

In September, the average temperature in Red Oak, United States hovers around 24°C (76°F), with fluctuations between a cool 9°C (48°F) and a sweltering 38°C (100°F). Expect an average humidity of 64%, contributing to the overall climate experience. With approximately 80 mm (3.2 in) of precipitation over 5 days, make sure to pack an umbrella along with your summer wear!

September Temperature in Red Oak

In September in Red Oak, the average temperature is 24°C (76°F). The maximum can reach 38°C (100°F), while the minimum can drop as low as 9°C (48°F). Be prepared for a range of weather conditions if you're planning to travel during this time.

September Weather in Red Oak: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Red Oak, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Red Oak, September typically has an average temperature of 24°C (76°F), with highs reaching up to 38°C (100°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec414455607078828076635146
Data source: Temperature data for Red Oak 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 Red Oak

In Red Oak in September, the precipitation amount is 80 mm (3.2 in) over a span of 5 days.

September Precipitation Trends in Red Oak

The chart displays monthly precipitation patterns in Red Oak, 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 Red Oak, September typically receives around 80 mm (3.2 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec801131141291938582109811486482
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Red Oak

In Red Oak 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 Red Oak

This chart illustrates the average monthly humidity levels in Red Oak, 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 Red Oak is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%78%75%75%83%82%78%68%64%71%82%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Red Oak

In Red Oak 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 Red Oak.

Maximum UV Index Levels in Red Oak for September

The chart shows the monthly maximum UV Index (UVI) for Red Oak 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 Red Oak typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46710101111109754
Data source: Red Oak 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 Red Oak Compares to Other Months

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

This table compares monthly weather conditions in Red Oak, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)80 mm (3.1 inches)79%moderate
February Weather7°C (44°F)113 mm (4.5 inches)78%high
March Weather13°C (56°F)114 mm (4.5 inches)75%high
April Weather16°C (61°F)128 mm (5.1 inches)75%very high
May Weather21°C (70°F)193 mm (7.6 inches)83%very high
June Weather26°C (79°F)85 mm (3.3 inches)81%extreme
July Weather28°C (82°F)82 mm (3.2 inches)78%extreme
August Weather27°C (80°F)109 mm (4.3 inches)68%very high
September Weather24°C (76°F)80 mm (3.2 inches)64%very high
October Weather17°C (63°F)148 mm (5.8 inches)71%high
November Weather11°C (52°F)64 mm (2.5 inches)82%moderate
December Weather8°C (47°F)82 mm (3.2 inches)87%moderate

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