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September Weather in Allenspark, United States

Last updated: June 24, 2025

In September, the average temperature in Allenspark, United States hovers around 12°C (53°F). Be prepared for a wide range of temperatures, with minimums dipping to a chilly -8°C (19°F) and maximums soaring up to a warm 30°C (85°F). The region sees a total precipitation of 54 mm (2.1 in) over about 11 days, contributing to an average humidity level of 63%.

September Temperature in Allenspark

In September in Allenspark, the average temperature is 12°C (53°F). Maximums can reach 30°C (85°F), and minimums can be as low as -8°C (19°F). Be prepared for a wide range of temperatures when traveling to Allenspark this month.

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

The chart illustrates September temperature patterns in Allenspark, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Allenspark, September typically has an average temperature of 12°C (53°F), with highs reaching up to 30°C (85°F) and lows dropping to around -8°C (19°F).
JanFebMarAprMayJunJulAugSepOctNovDec212028334255605853373023
Data source: Temperature data for Allenspark 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 Allenspark

In Allenspark in September, the precipitation amount is 54 mm (2.1 in), occurring over the course of 11 days.

September Precipitation Trends in Allenspark

The chart displays monthly precipitation patterns in Allenspark, 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 Allenspark, September typically receives around 54 mm (2.1 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec2844667013912016111854503427
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Allenspark

In Allenspark in September humidity is 63%. With an average temperature of 12°C (53°F), this humidity feels like a cool blanket wrapping around you, making travel comfortable yet slightly damp, urging you to embrace the cozy atmosphere while exploring.

September Average Humidity in Allenspark

This chart illustrates the average monthly humidity levels in Allenspark, 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 Allenspark is approximately 63%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%86%75%67%67%68%62%63%63%72%80%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Allenspark

In Allenspark 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 Allenspark.

Maximum UV Index Levels in Allenspark for September

The chart shows the monthly maximum UV Index (UVI) for Allenspark 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 Allenspark typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469121213121110754
Data source: Allenspark 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 Allenspark Compares to Other Months

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

This table compares monthly weather conditions in Allenspark, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)28 mm (1.1 inches)84%moderate
February Weather-7°C (20°F)44 mm (1.7 inches)85%high
March Weather-2°C (29°F)66 mm (2.6 inches)75%very high
April Weather1°C (33°F)70 mm (2.8 inches)67%extreme
May Weather6°C (42°F)139 mm (5.5 inches)67%extreme
June Weather13°C (55°F)120 mm (4.7 inches)68%extreme
July Weather16°C (60°F)161 mm (6.3 inches)62%extreme
August Weather15°C (59°F)118 mm (4.6 inches)63%extreme
September Weather12°C (53°F)54 mm (2.1 inches)63%very high
October Weather3°C (38°F)50 mm (2.0 inches)72%high
November Weather-1°C (30°F)34 mm (1.3 inches)79%moderate
December Weather-5°C (23°F)27 mm (1.0 inches)85%moderate

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