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September Weather in Colfax, United States

Last updated: June 24, 2025

In September, the average temperature in Colfax, United States is a pleasant 17°C (63°F), with temperatures ranging from a chilly 1°C (33°F) to a warm 32°C (91°F). During this month, expect about 97 mm (3.8 in) of precipitation over 11 days, while the average humidity hovers at a comfortable 80%.

September Temperature in Colfax

In September in Colfax, the average temperature is 17°C (63°F). Maximum temperatures can reach as high as 32°C (91°F), while minimums can drop to a chilly 1°C (33°F). Be sure to pack layers for your trip to Colfax, as you can experience a wide range of temperatures!

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

The chart illustrates September temperature patterns in Colfax, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Colfax, September typically has an average temperature of 17°C (63°F), with highs reaching up to 32°C (91°F) and lows dropping to around 1°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec161732435869726963473223
Data source: Temperature data for Colfax 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 Colfax

In Colfax in September, the total precipitation amount is 97 mm (3.8 in) over the course of 11 days.

September Precipitation Trends in Colfax

The chart displays monthly precipitation patterns in Colfax, 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 Colfax, September typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec31445687131124123126971094657
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Colfax

In Colfax in September humidity is 80%. With an average temperature of 17°C (63°F), this humidity feels like you're walking through a thick, warm blanket, making travel feel slightly stifling and requiring frequent breaks to stay comfortable.

September Average Humidity in Colfax

This chart illustrates the average monthly humidity levels in Colfax, 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 Colfax is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%89%86%85%79%80%80%78%80%84%89%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Colfax

In Colfax 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 Colfax.

Maximum UV Index Levels in Colfax for September

The chart shows the monthly maximum UV Index (UVI) for Colfax 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 Colfax typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910997532
Data source: Colfax 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 Colfax Compares to Other Months

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

This table compares monthly weather conditions in Colfax, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (16°F)31 mm (1.2 inches)88%low
February Weather-8°C (17°F)44 mm (1.7 inches)89%moderate
March Weather0°C (33°F)56 mm (2.2 inches)86%moderate
April Weather6°C (43°F)87 mm (3.4 inches)85%high
May Weather14°C (58°F)131 mm (5.2 inches)79%very high
June Weather21°C (69°F)124 mm (4.9 inches)80%very high
July Weather22°C (73°F)123 mm (4.8 inches)80%very high
August Weather20°C (69°F)126 mm (5.0 inches)78%very high
September Weather17°C (63°F)97 mm (3.8 inches)80%high
October Weather9°C (48°F)109 mm (4.3 inches)84%moderate
November Weather0°C (33°F)46 mm (1.8 inches)89%moderate
December Weather-5°C (23°F)57 mm (2.3 inches)85%low

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