September Weather in York, United States

Last updated: June 24, 2025

In York, United States, the average temperature in September is a warm 26°C (79°F), with readings dipping as low as 11°C (53°F) and soaring up to a sizzling 39°C (102°F). Expect 82 mm (3.2 in) of precipitation over approximately 8 days, contributing to an average humidity of 74%. Embrace the warmth and prepare for occasional showers!

September Temperature in York

In September in York, the average temperature is 26°C (79°F), with maximums reaching up to 39°C (102°F) and minimums dropping as low as 11°C (53°F). This warm climate makes it a perfect destination for travelers seeking a mix of sunny days and cooler evenings.

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 26°C (79°F), with highs reaching up to 39°C (102°F) and lows dropping to around 11°C (53°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 total precipitation amount reached 82 mm (3.2 in) over the course of 8 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 82 mm (3.2 inches) of precipitation spread over approximately 8 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 74%. With an average temperature of 26°C (79°F), this humidity feels like a warm, enveloping blanket, making it essential for travelers to stay hydrated and take frequent breaks in shaded areas to fully enjoy the vibrant surroundings.

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 74%, 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 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 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 10, which falls under the very high 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	9°C (49°F)	106 mm (4.2 inches)	85%	moderate
February Weather	12°C (55°F)	135 mm (5.3 inches)	84%	high
March Weather	16°C (61°F)	129 mm (5.1 inches)	82%	very high
April Weather	18°C (65°F)	130 mm (5.1 inches)	82%	very high
May Weather	23°C (74°F)	105 mm (4.1 inches)	82%	extreme
June Weather	26°C (80°F)	147 mm (5.8 inches)	79%	extreme
July Weather	28°C (82°F)	105 mm (4.1 inches)	82%	extreme
August Weather	27°C (82°F)	126 mm (5.0 inches)	77%	extreme
September Weather	26°C (79°F)	82 mm (3.2 inches)	74%	very high
October Weather	21°C (70°F)	113 mm (4.5 inches)	73%	very high
November Weather	13°C (56°F)	76 mm (3.0 inches)	85%	high
December Weather	11°C (52°F)	127 mm (5.0 inches)	88%	moderate