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September Weather in Prairie Grove, United States

Last updated: June 24, 2025

In September, the average temperature in Prairie Grove, United States is a pleasant 23°C (73°F). However, temperatures can vary significantly, with minimums dipping to 7°C (45°F) and maximums soaring up to 34°C (94°F). Expect about 77 mm (3.0 in) of precipitation over 7 days, contributing to an average humidity of 59%.

September Temperature in Prairie Grove

In September in Prairie Grove, the average temperature is 23°C (73°F). Maximums can reach 34°C (94°F), and minimums can be as low as 7°C (45°F). This weather makes Prairie Grove an ideal destination for travelers seeking both warm days and cooler evenings.

September Weather in Prairie Grove: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Prairie Grove, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Prairie Grove, September typically has an average temperature of 23°C (73°F), with highs reaching up to 34°C (94°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec384152576775797773604843
Data source: Temperature data for Prairie Grove 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 Prairie Grove

In Prairie Grove in September, the precipitation amount is 77 mm (3.0 in) over the course of 7 days.

September Precipitation Trends in Prairie Grove

The chart displays monthly precipitation patterns in Prairie Grove, 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 Prairie Grove, September typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec8410614417419298104154771637678
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Prairie Grove

In Prairie Grove in September, humidity is 59%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace, making traveling comfortable yet slightly sticky, perfect for leisurely strolls but best accompanied by plenty of water to stay refreshed.

September Average Humidity in Prairie Grove

This chart illustrates the average monthly humidity levels in Prairie Grove, 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 Prairie Grove is approximately 59%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%77%78%82%81%75%61%59%69%82%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Prairie Grove

In Prairie Grove 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 Prairie Grove.

Maximum UV Index Levels in Prairie Grove for September

The chart shows the monthly maximum UV Index (UVI) for Prairie Grove 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 Prairie Grove typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46710111111109753
Data source: Prairie Grove 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 Prairie Grove Compares to Other Months

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

This table compares monthly weather conditions in Prairie Grove, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (38°F)84 mm (3.3 inches)82%moderate
February Weather5°C (41°F)106 mm (4.2 inches)79%high
March Weather11°C (52°F)144 mm (5.7 inches)77%high
April Weather14°C (57°F)174 mm (6.8 inches)78%very high
May Weather19°C (67°F)192 mm (7.6 inches)82%extreme
June Weather24°C (76°F)98 mm (3.9 inches)81%extreme
July Weather26°C (79°F)104 mm (4.1 inches)75%extreme
August Weather25°C (77°F)154 mm (6.1 inches)61%very high
September Weather23°C (73°F)77 mm (3.0 inches)59%very high
October Weather15°C (60°F)163 mm (6.4 inches)69%high
November Weather9°C (48°F)76 mm (3.0 inches)82%moderate
December Weather6°C (43°F)78 mm (3.1 inches)87%moderate

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