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September Weather in Aspen Park, United States

Last updated: June 24, 2025

In September, the average temperature in Aspen Park, United States is a pleasant 15°C (59°F). However, don't be surprised by the range, as temperatures can dip as low as -4°C (24°F) and soar up to 32°C (90°F). Expect about 46 mm (1.8 in) of precipitation spread over 8 days, contributing to a relatively high average humidity of 65%. Enjoy the dynamic climate of Aspen Park!

September Temperature in Aspen Park

In September in Aspen Park, the average temperature is 15°C (59°F). Maximum temperatures can reach 32°C (90°F), while minimums can drop as low as -4°C (24°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.

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

The chart illustrates September temperature patterns in Aspen Park, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aspen Park, September typically has an average temperature of 15°C (59°F), with highs reaching up to 32°C (90°F) and lows dropping to around -4°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec232232384861656458423426
Data source: Temperature data for Aspen 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 Aspen Park

In Aspen Park in September, the precipitation amount is 46 mm (1.8 in) over the course of 8 days.

September Precipitation Trends in Aspen Park

The chart displays monthly precipitation patterns in Aspen 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 Aspen Park, September typically receives around 46 mm (1.8 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec2433596312474986446442518
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Aspen Park

In Aspen Park in September humidity is 65%. With an average temperature of 15°C (59°F), this humidity feels like a pleasantly mild atmosphere, making it ideal for exploring the city, though occasional warmth might prompt you to seek shade during midday.

September Average Humidity in Aspen Park

This chart illustrates the average monthly humidity levels in Aspen 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 Aspen Park is approximately 65%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%81%76%67%58%52%56%65%76%82%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Aspen Park

In Aspen Park in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Aspen Park.

Maximum UV Index Levels in Aspen Park for September

The chart shows the monthly maximum UV Index (UVI) for Aspen 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 Aspen Park typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469111212121110754
Data source: Aspen 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 Aspen Park Compares to Other Months

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

This table compares monthly weather conditions in Aspen Park, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)24 mm (0.9 inches)88%moderate
February Weather-5°C (23°F)33 mm (1.3 inches)87%high
March Weather0°C (32°F)59 mm (2.3 inches)81%very high
April Weather3°C (38°F)63 mm (2.5 inches)76%extreme
May Weather9°C (48°F)124 mm (4.9 inches)66%extreme
June Weather16°C (61°F)74 mm (2.9 inches)58%extreme
July Weather19°C (66°F)98 mm (3.8 inches)52%extreme
August Weather18°C (64°F)64 mm (2.5 inches)56%extreme
September Weather15°C (59°F)46 mm (1.8 inches)65%very high
October Weather6°C (43°F)44 mm (1.7 inches)76%high
November Weather1°C (34°F)25 mm (1.0 inches)82%moderate
December Weather-4°C (26°F)18 mm (0.7 inches)89%moderate

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