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September Weather in Fort Chiswell, United States

Last updated: June 24, 2025

The average temperature in Fort Chiswell, United States during September is a comfortable 19°C (67°F). Expect minimums dropping to 3°C (37°F) and maximums reaching 31°C (88°F). During this month, you can anticipate about 98 mm (3.9 in) of precipitation spread over 8 days, with an average humidity level of 68%.

September Temperature in Fort Chiswell

In September in Fort Chiswell, the average temperature is 19°C (67°F), with maximums reaching up to 31°C (88°F) and minimums dipping as low as 3°C (37°F). This pleasant climate makes Fort Chiswell an ideal destination for travelers seeking a balanced weather experience.

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

The chart illustrates September temperature patterns in Fort Chiswell, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fort Chiswell, September typically has an average temperature of 19°C (67°F), with highs reaching up to 31°C (88°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec354145536268737167574339
Data source: Temperature data for Fort Chiswell 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 Chiswell

In Fort Chiswell in September, the total precipitation amount is 98 mm (3.9 in), occurring over 8 days.

September Precipitation Trends in Fort Chiswell

The chart displays monthly precipitation patterns in Fort Chiswell, 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 Chiswell, September typically receives around 98 mm (3.9 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec68108881131069967101981036289
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Fort Chiswell

In Fort Chiswell in September, humidity is 68%. With an average temperature of 19°C (67°F), this humidity feels like a warm, enveloping blanket, making travel pleasant yet slightly muggy, which can be refreshing while exploring but may require occasional breaks to stay comfortable.

September Average Humidity in Fort Chiswell

This chart illustrates the average monthly humidity levels in Fort Chiswell, 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 Chiswell is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%86%84%83%83%79%66%68%78%89%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Fort Chiswell

In Fort Chiswell 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 Fort Chiswell.

Maximum UV Index Levels in Fort Chiswell for September

The chart shows the monthly maximum UV Index (UVI) for Fort Chiswell 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 Chiswell typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111010753
Data source: Fort Chiswell 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 Chiswell Compares to Other Months

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

This table compares monthly weather conditions in Fort Chiswell, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)68 mm (2.7 inches)87%moderate
February Weather5°C (41°F)108 mm (4.2 inches)87%high
March Weather7°C (45°F)88 mm (3.4 inches)86%very high
April Weather12°C (54°F)113 mm (4.5 inches)84%very high
May Weather17°C (63°F)105 mm (4.2 inches)83%extreme
June Weather20°C (69°F)99 mm (3.9 inches)83%extreme
July Weather23°C (73°F)67 mm (2.6 inches)79%extreme
August Weather22°C (71°F)101 mm (4.0 inches)66%very high
September Weather19°C (67°F)98 mm (3.9 inches)68%very high
October Weather14°C (58°F)103 mm (4.1 inches)78%high
November Weather6°C (43°F)62 mm (2.4 inches)89%moderate
December Weather4°C (40°F)89 mm (3.5 inches)86%moderate

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