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September Weather in Jonesville, United States

Last updated: June 24, 2025

In September, the average temperature in Jonesville, United States is a pleasant 21°C (70°F). Expect a minimum chill of 6°C (43°F) and a warm maximum reaching up to 33°C (92°F). Be prepared for some rain, as 93 mm (3.7 in) of precipitation can be expected over 9 days. With an average humidity of 67%, it's the perfect time to explore the area's unique charm!

September Temperature in Jonesville

In September in Jonesville, the average temperature is 21°C (70°F), with maximums reaching up to 33°C (92°F) and minimums dropping as low as 6°C (43°F). This weather makes Jonesville an ideal destination for travelers seeking pleasant temperatures and a variety of outdoor activities.

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

The chart illustrates September temperature patterns in Jonesville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jonesville, September typically has an average temperature of 21°C (70°F), with highs reaching up to 33°C (92°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec374348556571757370594541
Data source: Temperature data for Jonesville 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 Jonesville

In Jonesville in September, the precipitation amount is 93 mm (3.7 in) over the course of 9 days.

September Precipitation Trends in Jonesville

The chart displays monthly precipitation patterns in Jonesville, 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 Jonesville, September typically receives around 93 mm (3.7 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec93184136154126121981159313278126
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Jonesville

In Jonesville in September humidity is 67%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, making travel a bit stifling but still enjoyable if you're prepared with light clothing and plenty of water.

September Average Humidity in Jonesville

This chart illustrates the average monthly humidity levels in Jonesville, 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 Jonesville is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%84%84%83%79%66%67%76%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Jonesville

In Jonesville 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 Jonesville.

Maximum UV Index Levels in Jonesville for September

The chart shows the monthly maximum UV Index (UVI) for Jonesville 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 Jonesville typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109753
Data source: Jonesville 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 Jonesville Compares to Other Months

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

This table compares monthly weather conditions in Jonesville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)93 mm (3.7 inches)88%moderate
February Weather6°C (43°F)184 mm (7.2 inches)88%high
March Weather9°C (48°F)136 mm (5.4 inches)87%very high
April Weather13°C (56°F)154 mm (6.1 inches)84%very high
May Weather18°C (65°F)126 mm (5.0 inches)84%extreme
June Weather21°C (71°F)121 mm (4.8 inches)83%extreme
July Weather24°C (75°F)98 mm (3.9 inches)79%extreme
August Weather23°C (73°F)115 mm (4.5 inches)66%very high
September Weather21°C (70°F)93 mm (3.7 inches)67%very high
October Weather15°C (60°F)132 mm (5.2 inches)76%high
November Weather7°C (45°F)78 mm (3.1 inches)89%moderate
December Weather5°C (41°F)126 mm (5.0 inches)88%moderate

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