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September Weather in Springfield, United States

Last updated: June 24, 2025

In September, the average temperature in Springfield, United States is a mild 17°C (62°F), though temperatures can range from a chilly 0°C (32°F) to a warm 32°C (89°F). Expect around 98 mm (3.9 in) of precipitation spread over 10 days, resulting in an average humidity of 72%, creating a refreshing atmosphere.

September Temperature in Springfield

In September in Springfield, the average temperature is 17°C (62°F). Maximums can reach 32°C (89°F) and minimums can drop as low as 0°C (32°F). Be sure to pack for both warm days and chilly nights while exploring this vibrant destination!

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

The chart illustrates September temperature patterns in Springfield, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Springfield, September typically has an average temperature of 17°C (62°F), with highs reaching up to 32°C (89°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec242733455765706862513729
Data source: Temperature data for Springfield 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 Springfield

In Springfield in September, the total precipitation amount is 98 mm (3.9 in) recorded over a span of 10 days.

September Precipitation Trends in Springfield

The chart displays monthly precipitation patterns in Springfield, 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 Springfield, September typically receives around 98 mm (3.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec8099861191161081241139815310098
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Springfield

In Springfield in September humidity is 72%. With an average temperature of 17°C (62°F), this humidity feels like a warm embrace, making it perfect for leisurely strolls but potentially heavy on the skin, prompting travelers to seek shade during midday excursions.

September Average Humidity in Springfield

This chart illustrates the average monthly humidity levels in Springfield, 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 Springfield is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%84%76%72%67%64%72%81%87%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Springfield

In Springfield in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Springfield.

Maximum UV Index Levels in Springfield for September

The chart shows the monthly maximum UV Index (UVI) for Springfield 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 Springfield typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468910998642
Data source: Springfield 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 Springfield Compares to Other Months

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

This table compares monthly weather conditions in Springfield, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)80 mm (3.2 inches)89%moderate
February Weather-3°C (27°F)99 mm (3.9 inches)88%moderate
March Weather0°C (33°F)86 mm (3.4 inches)86%high
April Weather7°C (45°F)119 mm (4.7 inches)84%very high
May Weather14°C (57°F)116 mm (4.6 inches)76%very high
June Weather18°C (65°F)108 mm (4.3 inches)72%very high
July Weather21°C (71°F)124 mm (4.9 inches)66%very high
August Weather20°C (69°F)113 mm (4.4 inches)64%very high
September Weather17°C (62°F)98 mm (3.9 inches)72%very high
October Weather11°C (52°F)153 mm (6.0 inches)81%high
November Weather3°C (37°F)100 mm (3.9 inches)87%moderate
December Weather-2°C (29°F)98 mm (3.9 inches)84%low

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