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September Weather in Hayden, United States

Last updated: June 24, 2025

In Hayden, United States, the average temperature in September hovers around 24°C (76°F), providing a pleasant atmosphere for visitors. While the temperature can dip to a minimum of 10°C (51°F), it can also reach a sweltering maximum of 36°C (97°F). Expect about 94 mm (3.7 in) of precipitation spread over 8 days, contributing to an average humidity level of 73%. This blend of warm temperatures and occasional rain makes for a unique climate experience.

September Temperature in Hayden

In September in Hayden, the average temperature is 24°C (76°F), with maximums reaching up to 36°C (97°F) and minimums dropping as low as 10°C (51°F). This diverse temperature range makes it an ideal destination for travelers seeking both warm days and cool evenings.

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

The chart illustrates September temperature patterns in Hayden, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hayden, September typically has an average temperature of 24°C (76°F), with highs reaching up to 36°C (97°F) and lows dropping to around 10°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec455157627277808076665248
Data source: Temperature data for Hayden 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 Hayden

In Hayden in September, the precipitation amount is 94 mm (3.7 in) over the course of 8 days.

September Precipitation Trends in Hayden

The chart displays monthly precipitation patterns in Hayden, 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 Hayden, September typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec11818817715498125991089413279152
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Hayden

In Hayden in September humidity is 73%. With an average temperature of 24°C (76°F), this humidity feels like a warm and sticky embrace, making travel slightly uncomfortable as the air thickens around you, prompting you to seek shade and stay hydrated.

September Average Humidity in Hayden

This chart illustrates the average monthly humidity levels in Hayden, 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 Hayden is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%81%77%77%72%73%73%85%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Hayden

In Hayden in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Hayden.

Maximum UV Index Levels in Hayden for September

The chart shows the monthly maximum UV Index (UVI) for Hayden 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 Hayden typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111119764
Data source: Hayden 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 Hayden Compares to Other Months

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

This table compares monthly weather conditions in Hayden, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)118 mm (4.6 inches)85%moderate
February Weather10°C (51°F)188 mm (7.4 inches)84%high
March Weather14°C (57°F)177 mm (7.0 inches)82%very high
April Weather17°C (63°F)154 mm (6.1 inches)82%very high
May Weather22°C (72°F)98 mm (3.9 inches)81%extreme
June Weather25°C (77°F)125 mm (4.9 inches)77%extreme
July Weather27°C (80°F)99 mm (3.9 inches)77%extreme
August Weather26°C (80°F)108 mm (4.3 inches)72%extreme
September Weather24°C (76°F)94 mm (3.7 inches)73%very high
October Weather19°C (66°F)132 mm (5.2 inches)73%high
November Weather11°C (52°F)79 mm (3.1 inches)85%high
December Weather9°C (49°F)152 mm (6.0 inches)88%moderate

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