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September Weather in Aitkin, United States

Last updated: June 24, 2025

In September, the average temperature in Aitkin, United States hovers around 16°C (61°F). Temperatures can range from a chilly 2°C (36°F) to a warm 29°C (84°F). During this month, expect about 107 mm (4.2 in) of precipitation spread across 11 days, while the average humidity is a comfortable 77%.

September Temperature in Aitkin

In September in Aitkin, the average temperature is 16°C (61°F). The maximum can reach 29°C (84°F), while the minimum can drop as low as 2°C (36°F). This makes Aitkin an ideal destination for travelers seeking a varied climate, perfect for outdoor activities and sightseeing.

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

The chart illustrates September temperature patterns in Aitkin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aitkin, September typically has an average temperature of 16°C (61°F), with highs reaching up to 29°C (84°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec121228385468726861463019
Data source: Temperature data for Aitkin 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 Aitkin

In Aitkin in September, the precipitation amount is 107 mm (4.2 in) spread over a period of 11 days.

September Precipitation Trends in Aitkin

The chart displays monthly precipitation patterns in Aitkin, 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 Aitkin, September typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec19244069627890941071123153
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Aitkin

In Aitkin in September humidity is 77%. With an average temperature of 16°C (61°F), this humidity feels like a slight heaviness in the air, making every step feel a touch more effortful while traveling. The dampness clings to your skin, adding a layer of discomfort, yet the mild temperature invites you to explore the surroundings, blending the challenge of the humidity with an opportunity for a refreshing adventure.

September Average Humidity in Aitkin

This chart illustrates the average monthly humidity levels in Aitkin, 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 Aitkin is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%93%88%83%76%76%76%77%77%82%88%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Aitkin

In Aitkin in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Aitkin.

Maximum UV Index Levels in Aitkin for September

The chart shows the monthly maximum UV Index (UVI) for Aitkin 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 Aitkin typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457810987532
Data source: Aitkin 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 Aitkin Compares to Other Months

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

This table compares monthly weather conditions in Aitkin, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-11°C (12°F)19 mm (0.8 inches)92%low
February Weather-11°C (12°F)24 mm (0.9 inches)93%moderate
March Weather-2°C (29°F)40 mm (1.6 inches)88%moderate
April Weather3°C (38°F)69 mm (2.7 inches)83%high
May Weather12°C (55°F)62 mm (2.4 inches)76%very high
June Weather20°C (68°F)78 mm (3.1 inches)76%very high
July Weather22°C (72°F)90 mm (3.5 inches)76%very high
August Weather20°C (69°F)94 mm (3.7 inches)77%very high
September Weather16°C (61°F)107 mm (4.2 inches)77%high
October Weather8°C (46°F)112 mm (4.4 inches)82%moderate
November Weather-1°C (30°F)31 mm (1.2 inches)87%moderate
December Weather-7°C (20°F)53 mm (2.1 inches)89%low

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