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September Weather in Cut Bank, United States

Last updated: June 24, 2025

In Cut Bank, United States, the average temperature in September hovers around 13°C (55°F), with fluctuations ranging from a chilly -4°C (25°F) to a warm 32°C (90°F). This month sees 31 mm (1.2 in) of precipitation spread over 5 days, while the average humidity sits at a comfortable 66%. Embrace the diverse weather and plan your activities accordingly!

September Temperature in Cut Bank

In September in Cut Bank, the average temperature is 13°C (55°F). Maximum temperatures can reach 32°C (90°F), while minimums can drop as low as -4°C (25°F). This temperature range suggests that travelers should prepare for both warm days and possibly chilly nights.

September Weather in Cut Bank: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Cut Bank, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cut Bank, September typically has an average temperature of 13°C (55°F), with highs reaching up to 32°C (90°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec221528385160676555403124
Data source: Temperature data for Cut Bank 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 Cut Bank

In Cut Bank in September, the precipitation amount is 31 mm (1.2 in) spread over 5 days.

September Precipitation Trends in Cut Bank

The chart displays monthly precipitation patterns in Cut Bank, 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 Cut Bank, September typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec153825476562152531303124
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Cut Bank

In Cut Bank in September, humidity is 66%. With an average temperature of 13°C (55°F), this humidity feels like a damp chill in the air, making outdoor activities invigorating but requiring a light jacket for comfort while exploring.

September Average Humidity in Cut Bank

This chart illustrates the average monthly humidity levels in Cut Bank, 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 Cut Bank is approximately 66%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%89%83%76%73%75%75%70%67%72%82%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Cut Bank

In Cut Bank 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 Cut Bank.

Maximum UV Index Levels in Cut Bank for September

The chart shows the monthly maximum UV Index (UVI) for Cut Bank 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 Cut Bank typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789997532
Data source: Cut Bank 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 Cut Bank Compares to Other Months

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

This table compares monthly weather conditions in Cut Bank, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)15 mm (0.6 inches)86%low
February Weather-10°C (15°F)38 mm (1.5 inches)89%moderate
March Weather-2°C (29°F)25 mm (1.0 inches)83%moderate
April Weather3°C (38°F)47 mm (1.9 inches)75%high
May Weather10°C (51°F)65 mm (2.6 inches)72%very high
June Weather15°C (60°F)62 mm (2.4 inches)75%very high
July Weather19°C (67°F)15 mm (0.6 inches)75%very high
August Weather18°C (65°F)25 mm (1.0 inches)69%very high
September Weather13°C (55°F)31 mm (1.2 inches)66%high
October Weather4°C (40°F)30 mm (1.2 inches)72%moderate
November Weather0°C (32°F)31 mm (1.2 inches)82%moderate
December Weather-4°C (24°F)24 mm (1.0 inches)89%low

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