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September Weather in Colfax, United States

Last updated: June 24, 2025

In Colfax, United States, the average temperature in September is a pleasant 17°C (63°F). However, it can range from a chilly 2°C (36°F) to a warm 35°C (95°F). During this time, expect approximately 26 mm (1.0 in) of precipitation over 4 days. With an average humidity of 62%, it’s a perfect month to enjoy the unique charm this destination has to offer!

September Temperature in Colfax

In September in Colfax, the average temperature is 17°C (63°F), with maximums reaching 35°C (95°F) and minimums dipping as low as 2°C (36°F). This range makes it a perfect destination for travelers seeking a variety of weather experiences, from warm days to cooler evenings.

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 35°C (95°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec333241485765747363494033
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 precipitation amount is 26 mm (1.0 in) over the course of 4 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 26 mm (1.0 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec72896760572631126658783
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 62%. With an average temperature of 17°C (63°F), this humidity feels like a refreshing embrace, making it pleasant for traveling as long as you stay hydrated and take breaks in the shade.

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 62%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%89%87%84%78%78%77%64%62%79%87%90%
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.
JanFebMarAprMayJunJulAugSepOctNovDec2457891097532
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 Weather1°C (33°F)72 mm (2.8 inches)89%low
February Weather0°C (33°F)89 mm (3.5 inches)89%moderate
March Weather5°C (41°F)67 mm (2.6 inches)87%moderate
April Weather9°C (48°F)59 mm (2.3 inches)84%high
May Weather14°C (57°F)57 mm (2.2 inches)77%very high
June Weather18°C (65°F)25 mm (1.0 inches)78%very high
July Weather23°C (74°F)3 mm (0.1 inches)77%very high
August Weather23°C (73°F)11 mm (0.4 inches)64%very high
September Weather17°C (63°F)26 mm (1.0 inches)62%high
October Weather9°C (49°F)65 mm (2.6 inches)79%moderate
November Weather4°C (40°F)87 mm (3.4 inches)87%moderate
December Weather1°C (33°F)83 mm (3.3 inches)90%low

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