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September Weather in Ishpeming, United States

Last updated: June 24, 2025

In Ishpeming, United States, the average temperature in September hovers around 14°C (58°F). Be prepared for a range of minimum temperatures that can dip to -3°C (27°F) and maximums soaring up to 33°C (92°F). During this period, you can expect approximately 108 mm (4.3 in) of precipitation over 12 days, and the average humidity is a comfortable 74%.

September Temperature in Ishpeming

In September in Ishpeming, the average temperature is 14°C (58°F). Maximum temperatures can reach 33°C (92°F), while minimums can drop as low as -3°C (27°F). Be prepared for a wide range of weather conditions while traveling during this time.

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

The chart illustrates September temperature patterns in Ishpeming, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ishpeming, September typically has an average temperature of 14°C (58°F), with highs reaching up to 33°C (92°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec161525365263686457442921
Data source: Temperature data for Ishpeming 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 Ishpeming

In Ishpeming in September, the precipitation amount is 108 mm (4.3 in) over the course of 12 days.

September Precipitation Trends in Ishpeming

The chart displays monthly precipitation patterns in Ishpeming, 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 Ishpeming, September typically receives around 108 mm (4.3 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec4259579384117951251081246362
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ishpeming

In Ishpeming in September humidity is 74%. With an average temperature of 14°C (58°F), this humidity feels like a thick blanket wrapping around you, making outdoor activities slightly uncomfortable and prompting travelers to seek shade or indoor venues more often.

September Average Humidity in Ishpeming

This chart illustrates the average monthly humidity levels in Ishpeming, 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 Ishpeming is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%92%88%86%78%74%70%71%74%81%86%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ishpeming

In Ishpeming 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 Ishpeming.

Maximum UV Index Levels in Ishpeming for September

The chart shows the monthly maximum UV Index (UVI) for Ishpeming 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 Ishpeming typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245789987532
Data source: Ishpeming 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 Ishpeming Compares to Other Months

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

This table compares monthly weather conditions in Ishpeming, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (16°F)42 mm (1.6 inches)92%low
February Weather-10°C (15°F)59 mm (2.3 inches)92%moderate
March Weather-4°C (26°F)57 mm (2.2 inches)88%moderate
April Weather2°C (36°F)93 mm (3.7 inches)86%high
May Weather11°C (52°F)84 mm (3.3 inches)78%very high
June Weather17°C (63°F)116 mm (4.6 inches)74%very high
July Weather20°C (69°F)95 mm (3.7 inches)70%very high
August Weather18°C (64°F)125 mm (4.9 inches)71%very high
September Weather14°C (58°F)108 mm (4.3 inches)74%high
October Weather7°C (44°F)124 mm (4.9 inches)81%moderate
November Weather-2°C (29°F)63 mm (2.5 inches)86%moderate
December Weather-6°C (21°F)62 mm (2.4 inches)90%low

Compare Ishpeming's Climate with Cities Worldwide