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September Weather in King Arthur Park, United States

Last updated: June 24, 2025

In King Arthur Park, United States during September, the average temperature hovers around 12°C (54°F). Expect a minimum drop to -4°C (25°F) and a maximum rise to 33°C (92°F). With an average humidity of 67%, this month also brings about 59 mm (2.3 in) of precipitation spread over 7 days, making it a mix of chilly and wet weather.

September Temperature in King Arthur Park

In September in King Arthur Park, the average temperature is 12°C (54°F), with maximums reaching 33°C (92°F) and minimums dropping as low as -4°C (25°F). Be sure to pack layers to prepare for a wide range of temperatures during your travels.

September Weather in King Arthur Park: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in King Arthur Park, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In King Arthur Park, September typically has an average temperature of 12°C (54°F), with highs reaching up to 33°C (92°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec191829354657656354382820
Data source: Temperature data for King Arthur Park 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 King Arthur Park

In King Arthur Park in September, the precipitation amount is 59 mm (2.3 in) over a span of 7 days.

September Precipitation Trends in King Arthur Park

The chart displays monthly precipitation patterns in King Arthur Park, 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 King Arthur Park, September typically receives around 59 mm (2.3 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec30654786102104394859685037
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in King Arthur Park

In King Arthur Park in September, humidity is 67%. With an average temperature of 12°C (54°F), this humidity feels like a cool, damp blanket wrapping around you, making it essential to layer your clothing for comfort while exploring.

September Average Humidity in King Arthur Park

This chart illustrates the average monthly humidity levels in King Arthur Park, 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 King Arthur Park is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%90%83%79%76%74%69%67%72%89%94%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in King Arthur Park

In King Arthur Park 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 King Arthur Park.

Maximum UV Index Levels in King Arthur Park for September

The chart shows the monthly maximum UV Index (UVI) for King Arthur Park 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 King Arthur Park typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3578111110108642
Data source: King Arthur Park 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 King Arthur Park Compares to Other Months

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

This table compares monthly weather conditions in King Arthur Park, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (20°F)30 mm (1.2 inches)93%moderate
February Weather-8°C (18°F)65 mm (2.5 inches)92%moderate
March Weather-2°C (29°F)47 mm (1.8 inches)89%high
April Weather2°C (35°F)86 mm (3.4 inches)83%very high
May Weather8°C (46°F)102 mm (4.0 inches)79%extreme
June Weather14°C (57°F)104 mm (4.1 inches)76%extreme
July Weather18°C (65°F)39 mm (1.5 inches)74%very high
August Weather17°C (64°F)48 mm (1.9 inches)69%very high
September Weather12°C (54°F)59 mm (2.3 inches)67%very high
October Weather3°C (38°F)68 mm (2.7 inches)72%high
November Weather-2°C (28°F)50 mm (2.0 inches)89%moderate
December Weather-7°C (20°F)37 mm (1.5 inches)94%low

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