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September Weather in Parsons, United States

Last updated: June 24, 2025

In Parsons, United States, the average temperature in September is a pleasant 18°C (64°F), with minimums dipping to 2°C (35°F) and maximums soaring to 30°C (85°F). Be prepared for some rainy days, as precipitation typically reaches 110 mm (4.3 in) over about 10 days. With an average humidity of 68%, it's a perfect time to explore the region's natural beauty!

September Temperature in Parsons

In September in Parsons, the average temperature is 18°C (64°F). Maximum temperatures can reach 30°C (85°F), while minimums can drop as low as 2°C (35°F). Be sure to pack layers to accommodate the warm days and cool evenings during your travels.

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

The chart illustrates September temperature patterns in Parsons, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Parsons, September typically has an average temperature of 18°C (64°F), with highs reaching up to 30°C (85°F) and lows dropping to around 2°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec303641506066706864554136
Data source: Temperature data for Parsons 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 Parsons

In Parsons in September, the precipitation amount is 110 mm (4.3 in) over a period of 10 days.

September Precipitation Trends in Parsons

The chart displays monthly precipitation patterns in Parsons, 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 Parsons, September typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec10415412415916613111111911112590129
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Parsons

In Parsons in September, humidity is 68%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making for a slightly muggy experience that can leave you feeling sticky as you explore, so it’s best to stay hydrated and take frequent breaks in the shade.

September Average Humidity in Parsons

This chart illustrates the average monthly humidity levels in Parsons, 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 Parsons is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%84%78%79%70%59%68%80%87%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Parsons

In Parsons 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 Parsons.

Maximum UV Index Levels in Parsons for September

The chart shows the monthly maximum UV Index (UVI) for Parsons 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 Parsons typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35710101111109753
Data source: Parsons 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 Parsons Compares to Other Months

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

This table compares monthly weather conditions in Parsons, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)104 mm (4.1 inches)86%moderate
February Weather2°C (36°F)154 mm (6.1 inches)86%moderate
March Weather5°C (41°F)124 mm (4.9 inches)86%high
April Weather10°C (50°F)159 mm (6.3 inches)84%very high
May Weather15°C (60°F)166 mm (6.5 inches)78%very high
June Weather19°C (66°F)131 mm (5.2 inches)79%extreme
July Weather21°C (71°F)111 mm (4.4 inches)70%extreme
August Weather20°C (69°F)119 mm (4.7 inches)59%very high
September Weather18°C (64°F)110 mm (4.3 inches)68%very high
October Weather13°C (55°F)125 mm (4.9 inches)80%high
November Weather5°C (41°F)90 mm (3.5 inches)86%moderate
December Weather2°C (36°F)129 mm (5.1 inches)85%moderate

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