September Weather in York, United States

Last updated: June 24, 2025

In September, the average temperature in York, United States is a pleasant 24°C (75°F). Visitors can expect a range that dips to a minimum of 9°C (49°F) and peaks at a sizzling 37°C (99°F). With an average humidity of 66%, the climate can feel quite warm and inviting. Rainfall measures around 33 mm (1.3 in) over approximately 4 days, adding just a hint of refreshment to the otherwise sunny days.

September Temperature in York

In September, in York, the average temperature is 24°C (75°F), with maximums reaching up to 37°C (99°F) and minimums dropping as low as 9°C (49°F). Be prepared for a mix of warm days and cooler nights when planning your travel.

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

The chart illustrates September temperature patterns in York, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In York, September typically has an average temperature of 24°C (75°F), with highs reaching up to 37°C (99°F) and lows dropping to around 9°C (49°F).

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

September Precipitation in York

In York in September, the precipitation amount is 33 mm (1.3 in) over a span of 4 days.

September Precipitation Trends in York

The chart displays monthly precipitation patterns in York, 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 York, September typically receives around 33 mm (1.3 inches) of precipitation spread over approximately 4 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 York

In York in September humidity is 66%. With an average temperature of 24°C (75°F), this humidity feels like a warm blanket enveloping you, making it feel a bit heavier and stickier while traveling, which might slow down your pace but offers a unique ambiance to explore.

September Average Humidity in York

This chart illustrates the average monthly humidity levels in York, 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 York is approximately 66%, 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 York

In York in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in York.

Maximum UV Index Levels in York for September

The chart shows the monthly maximum UV Index (UVI) for York 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 York typically reaches 11, which falls under the extreme exposure category.

Data source: York 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 York Compares to Other Months

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

This table compares monthly weather conditions in York, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (43°F)	31 mm (1.2 inches)	81%	moderate
February Weather	8°C (46°F)	38 mm (1.5 inches)	82%	high
March Weather	12°C (54°F)	23 mm (0.9 inches)	68%	very high
April Weather	17°C (64°F)	3 mm (0.1 inches)	55%	extreme
May Weather	22°C (71°F)	3 mm (0.1 inches)	45%	extreme
June Weather	27°C (82°F)	5 mm (0.2 inches)	37%	extreme
July Weather	28°C (82°F)	63 mm (2.5 inches)	43%	extreme
August Weather	27°C (81°F)	31 mm (1.2 inches)	53%	extreme
September Weather	24°C (75°F)	33 mm (1.3 inches)	66%	extreme
October Weather	18°C (64°F)	18 mm (0.7 inches)	72%	very high
November Weather	12°C (54°F)	25 mm (1.0 inches)	81%	high
December Weather	7°C (44°F)	28 mm (1.1 inches)	84%	moderate