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September Weather in Fort Jones, United States

Last updated: June 24, 2025

In Fort Jones, United States, the average temperature in September is a comfortable 16°C (61°F). However, be prepared for a temperature range that can drop to a chilly -2°C (29°F) or soar up to a sweltering 35°C (96°F). During this month, expect around 19 mm (0.7 in) of precipitation spread over 4 days, with an average humidity level of 62%. Perfect for planning your next adventure!

September Temperature in Fort Jones

In September in Fort Jones, the average temperature is 16°C (61°F). Maximums can reach 35°C (96°F), and minimums can be as low as -2°C (29°F). Travelers should be prepared for a wide range of temperatures, making layers essential for comfort during their visit.

September Weather in Fort Jones: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Fort Jones, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fort Jones, September typically has an average temperature of 16°C (61°F), with highs reaching up to 35°C (96°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec353640465463727061504034
Data source: Temperature data for Fort Jones 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 Fort Jones

In Fort Jones in September, the precipitation amount is 19 mm (0.7 in) over the course of 4 days.

September Precipitation Trends in Fort Jones

The chart displays monthly precipitation patterns in Fort Jones, 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 Fort Jones, September typically receives around 19 mm (0.7 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec1311209967542061119417598
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Fort Jones

In Fort Jones in September, humidity is 62%. With an average temperature of 16°C (61°F), this humidity feels like a gentle blanket, making traveling comfortable yet occasionally sticky, prompting the need for light, breathable clothing to fully enjoy the sights.

September Average Humidity in Fort Jones

This chart illustrates the average monthly humidity levels in Fort Jones, 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 Fort Jones is approximately 62%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%85%82%81%79%70%60%62%72%87%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Fort Jones

In Fort Jones 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 Fort Jones.

Maximum UV Index Levels in Fort Jones for September

The chart shows the monthly maximum UV Index (UVI) for Fort Jones 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 Fort Jones typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579111111109643
Data source: Fort Jones 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 Fort Jones Compares to Other Months

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

This table compares monthly weather conditions in Fort Jones, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)131 mm (5.1 inches)86%moderate
February Weather2°C (36°F)120 mm (4.7 inches)85%moderate
March Weather4°C (40°F)99 mm (3.9 inches)85%high
April Weather8°C (46°F)67 mm (2.6 inches)82%very high
May Weather12°C (54°F)54 mm (2.1 inches)81%extreme
June Weather17°C (63°F)20 mm (0.8 inches)79%extreme
July Weather22°C (72°F)6 mm (0.3 inches)70%extreme
August Weather21°C (70°F)11 mm (0.4 inches)60%very high
September Weather16°C (61°F)19 mm (0.7 inches)62%very high
October Weather10°C (50°F)41 mm (1.6 inches)72%high
November Weather4°C (40°F)75 mm (3.0 inches)87%moderate
December Weather1°C (34°F)98 mm (3.8 inches)86%moderate

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