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September Weather in Joplin, United States

Last updated: June 24, 2025

In September, the average temperature in Joplin, United States is a pleasant 23°C (74°F). Temperatures can range from a cool 7°C (44°F) at night to a warm 35°C (95°F) during the day. Expect about 73 mm (2.9 in) of precipitation over 6 days, accompanied by an average humidity of 64%.

September Temperature in Joplin

In September in Joplin, the average temperature is 23°C (74°F). Maximums can reach 35°C (95°F) and minimums can drop as low as 7°C (44°F). This diverse temperature range makes it a great time for travelers to experience both warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Joplin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Joplin, September typically has an average temperature of 23°C (74°F), with highs reaching up to 35°C (95°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec363951576777807874604742
Data source: Temperature data for Joplin 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 Joplin

In Joplin in September, the precipitation amount is 73 mm (2.9 in) over a span of 6 days.

September Precipitation Trends in Joplin

The chart displays monthly precipitation patterns in Joplin, 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 Joplin, September typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec82711431361888694108731405850
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Joplin

In Joplin in September, humidity is 64%. With an average temperature of 23°C (74°F), this humidity feels like a warm blanket wrapping around you, making outdoor exploration enjoyable yet slightly sticky, so it's best to stay hydrated and take breaks in the shade while traveling.

September Average Humidity in Joplin

This chart illustrates the average monthly humidity levels in Joplin, 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 Joplin is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%78%76%78%83%83%78%68%64%70%83%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Joplin

In Joplin 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 Joplin.

Maximum UV Index Levels in Joplin for September

The chart shows the monthly maximum UV Index (UVI) for Joplin 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 Joplin typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
Data source: Joplin 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 Joplin Compares to Other Months

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

This table compares monthly weather conditions in Joplin, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (37°F)82 mm (3.2 inches)81%moderate
February Weather4°C (39°F)71 mm (2.8 inches)78%high
March Weather10°C (51°F)143 mm (5.6 inches)76%high
April Weather14°C (57°F)136 mm (5.3 inches)78%very high
May Weather20°C (67°F)188 mm (7.4 inches)83%very high
June Weather25°C (77°F)86 mm (3.4 inches)83%extreme
July Weather27°C (80°F)94 mm (3.7 inches)78%extreme
August Weather25°C (78°F)108 mm (4.2 inches)68%very high
September Weather23°C (74°F)73 mm (2.9 inches)64%very high
October Weather15°C (60°F)140 mm (5.5 inches)70%high
November Weather9°C (48°F)58 mm (2.3 inches)83%moderate
December Weather6°C (42°F)49 mm (1.9 inches)87%moderate

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