September Weather in Hayden, United States

Last updated: June 24, 2025

The average temperature in Hayden, United States during September is a warm 28°C (82°F), with a comfortable average humidity of 64%. Expect lows of 13°C (56°F) and highs reaching up to 41°C (106°F). Additionally, anticipate 22 mm (0.9 in) of precipitation spread over about 3 days, perfect for those who enjoy a bit of rain amidst the warmth.

September Temperature in Hayden

In September in Hayden, the average temperature is 28°C (82°F). Maximum temperatures can reach as high as 41°C (106°F), while minimum temperatures can drop to as low as 13°C (56°F). Be prepared for a wide range of temperatures if you plan to travel during this month.

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 28°C (82°F), with highs reaching up to 41°C (106°F) and lows dropping to around 13°C (56°F).

Data source: Temperature data for Hayden generated using information from the Copernicus Climate Change Service.

September Precipitation in Hayden

In Hayden in September, the precipitation amount is 22 mm (0.9 in) over a span of 3 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 22 mm (0.9 inches) of precipitation spread over approximately 3 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Hayden

In Hayden in September, humidity is 64%. With an average temperature of 28°C (82°F), this humidity feels like a warm, sticky embrace that can quickly lead to discomfort while traveling, making you crave frequent breaks in the shade and plenty of hydration to ensure your comfort throughout the day.

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 64%, offering insight into how humid the weather typically is during this month.

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 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 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 10, which falls under the very high exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (50°F)	41 mm (1.6 inches)	76%	moderate
February Weather	11°C (52°F)	46 mm (1.8 inches)	79%	high
March Weather	15°C (60°F)	25 mm (1.0 inches)	67%	very high
April Weather	21°C (69°F)	3 mm (0.1 inches)	55%	extreme
May Weather	25°C (76°F)	6 mm (0.2 inches)	40%	extreme
June Weather	30°C (87°F)	3 mm (0.1 inches)	33%	extreme
July Weather	31°C (88°F)	56 mm (2.2 inches)	34%	extreme
August Weather	30°C (87°F)	29 mm (1.1 inches)	48%	extreme
September Weather	28°C (82°F)	22 mm (0.9 inches)	64%	very high
October Weather	21°C (71°F)	13 mm (0.5 inches)	67%	very high
November Weather	16°C (61°F)	20 mm (0.8 inches)	77%	high
December Weather	10°C (51°F)	32 mm (1.2 inches)	82%	moderate