September Weather in Morgantown, United States

Last updated: June 24, 2025

In Morgantown, United States, the average temperature in September reaches a pleasant 21°C (71°F). You can expect a minimum of 6°C (44°F) and a maximum of 34°C (93°F) during this time. With an average precipitation of 79 mm (3.1 in) spread over 7 days, and a comfortable average humidity of 69%, the climate offers a delightful experience for visitors!

September Temperature in Morgantown

In September in Morgantown, the average temperature is 21°C (71°F), with maximums reaching 34°C (93°F) and minimums dropping as low as 6°C (44°F). This diverse temperature range makes it a perfect time for travelers to experience a variety of outdoor activities, from warm daytime excursions to cooler evening strolls.

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

The chart illustrates September temperature patterns in Morgantown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Morgantown, September typically has an average temperature of 21°C (71°F), with highs reaching up to 34°C (93°F) and lows dropping to around 6°C (44°F).

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

September Precipitation in Morgantown

In Morgantown in September, the total precipitation amount is 79 mm (3.1 in) distributed over a period of 7 days.

September Precipitation Trends in Morgantown

The chart displays monthly precipitation patterns in Morgantown, 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 Morgantown, September typically receives around 79 mm (3.1 inches) of precipitation spread over approximately 7 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Morgantown

In Morgantown in September humidity is 69%. With an average temperature of 21°C (71°F), this humidity feels like a warm embrace, creating a tropical atmosphere that can make outdoor activities feel slightly sticky, yet invigorating for travelers who are ready to embrace the local culture and explore.

September Average Humidity in Morgantown

This chart illustrates the average monthly humidity levels in Morgantown, 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 Morgantown is approximately 69%, 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 Morgantown

In Morgantown in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Morgantown.

Maximum UV Index Levels in Morgantown for September

The chart shows the monthly maximum UV Index (UVI) for Morgantown 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 Morgantown typically reaches 8, which falls under the very high exposure category.

Data source: Morgantown 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 Morgantown Compares to Other Months

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

This table compares monthly weather conditions in Morgantown, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (32°F)	85 mm (3.3 inches)	87%	moderate
February Weather	2°C (36°F)	107 mm (4.2 inches)	85%	moderate
March Weather	7°C (45°F)	135 mm (5.3 inches)	86%	high
April Weather	12°C (54°F)	114 mm (4.5 inches)	84%	very high
May Weather	18°C (66°F)	136 mm (5.3 inches)	79%	very high
June Weather	23°C (74°F)	129 mm (5.1 inches)	82%	extreme
July Weather	25°C (78°F)	115 mm (4.5 inches)	79%	very high
August Weather	24°C (75°F)	104 mm (4.1 inches)	70%	very high
September Weather	21°C (71°F)	79 mm (3.1 inches)	69%	very high
October Weather	15°C (59°F)	101 mm (4.0 inches)	76%	high
November Weather	6°C (43°F)	103 mm (4.1 inches)	88%	moderate
December Weather	3°C (38°F)	95 mm (3.7 inches)	87%	moderate