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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 warm 26°C (79°F), with lows dipping to 13°C (55°F) and highs soaring up to 39°C (102°F). Be prepared for some rainfall, as 120 mm (4.7 in) of precipitation is expected over approximately 10 days. With an average humidity of 72%, it's a month where you can truly feel the heat and embrace the tropical vibes!

September Temperature in Colfax

In September in Colfax, the average temperature is 26°C (79°F). Maximums can reach 39°C (102°F), while minimums can drop as low as 13°C (55°F). Travelers should prepare for warm days and cooler evenings during this time.

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 26°C (79°F), with highs reaching up to 39°C (102°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec505463667580828279705754
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 120 mm (4.7 in) spread over a duration of 10 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 120 mm (4.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec10614110015617712212614812011566135
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 72%. With an average temperature of 26°C (79°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities feel a bit more strenuous but also adding a tropical charm to your travels.

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 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%81%79%80%81%76%73%72%72%73%83%88%
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 reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. 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 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111112121110864
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 Weather10°C (51°F)106 mm (4.2 inches)81%moderate
February Weather12°C (55°F)141 mm (5.5 inches)81%high
March Weather17°C (63°F)100 mm (3.9 inches)79%very high
April Weather19°C (66°F)156 mm (6.2 inches)80%extreme
May Weather24°C (75°F)177 mm (7.0 inches)81%extreme
June Weather27°C (80°F)122 mm (4.8 inches)76%extreme
July Weather28°C (83°F)126 mm (5.0 inches)73%extreme
August Weather28°C (83°F)148 mm (5.8 inches)71%extreme
September Weather26°C (79°F)120 mm (4.7 inches)72%very high
October Weather21°C (70°F)115 mm (4.5 inches)73%very high
November Weather14°C (58°F)66 mm (2.6 inches)83%high
December Weather12°C (54°F)135 mm (5.3 inches)88%moderate

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