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September Weather in Cotton Valley, United States

Last updated: June 24, 2025

In September, the average temperature in Cotton Valley, United States is a comfortable 26°C (79°F), with minimums dipping to 11°C (53°F) and maximums soaring up to 39°C (102°F). Expect about 91 mm (3.6 in) of precipitation spread over 8 days, adding a touch of freshness to the warm climate, while the average humidity rests at a moderate 63%.

September Temperature in Cotton Valley

In September in Cotton Valley, the average temperature is 26°C (79°F), with maximums reaching up to 39°C (102°F) and minimums dropping as low as 11°C (53°F). This warm climate makes it a perfect destination for travelers seeking a mix of sunny days and cooler evenings.

September Weather in Cotton Valley: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Cotton Valley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cotton Valley, September typically has an average temperature of 26°C (79°F), with highs reaching up to 39°C (102°F) and lows dropping to around 11°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec485161657481838379685652
Data source: Temperature data for Cotton Valley 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 Cotton Valley

In Cotton Valley in September, the total precipitation amount is 91 mm (3.6 in) over the course of 8 days.

September Precipitation Trends in Cotton Valley

The chart displays monthly precipitation patterns in Cotton Valley, 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 Cotton Valley, September typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec115157142180138104941009110771127
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Cotton Valley

In Cotton Valley in September humidity is 63%. With average temperature 26°C (79°F), this humidity feels like a warm embrace, making it perfect for leisurely strolls or exploring local attractions, though be prepared for a slight stickiness that may prompt you to seek shade or refreshing beverages along the way.

September Average Humidity in Cotton Valley

This chart illustrates the average monthly humidity levels in Cotton Valley, 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 Cotton Valley is approximately 63%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%78%79%81%77%72%65%63%70%82%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Cotton Valley

In Cotton Valley in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Cotton Valley.

Maximum UV Index Levels in Cotton Valley for September

The chart shows the monthly maximum UV Index (UVI) for Cotton Valley 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 Cotton Valley typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478111112111110864
Data source: Cotton Valley 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 Cotton Valley Compares to Other Months

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

This table compares monthly weather conditions in Cotton Valley, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)115 mm (4.5 inches)82%moderate
February Weather11°C (51°F)157 mm (6.2 inches)80%high
March Weather16°C (61°F)142 mm (5.6 inches)78%very high
April Weather18°C (65°F)180 mm (7.1 inches)79%extreme
May Weather23°C (74°F)138 mm (5.4 inches)81%extreme
June Weather27°C (81°F)104 mm (4.1 inches)77%extreme
July Weather29°C (84°F)94 mm (3.7 inches)72%extreme
August Weather28°C (83°F)100 mm (3.9 inches)65%extreme
September Weather26°C (79°F)91 mm (3.6 inches)63%very high
October Weather20°C (68°F)107 mm (4.2 inches)70%very high
November Weather13°C (56°F)71 mm (2.8 inches)82%high
December Weather11°C (52°F)127 mm (5.0 inches)88%moderate

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