September Weather in Keenesburg, United States

Last updated: June 24, 2025

In September, the average temperature in Keenesburg, United States hovers around 20°C (69°F). However, be prepared for a range, with lows dipping to 0°C (32°F) and soaring highs reaching 38°C (101°F). Expect a modest precipitation total of 26 mm (1.0 in) over approximately 5 days, and keep in mind the average humidity level of 79% that can make the air feel quite muggy.

September Temperature in Keenesburg

In September in Keenesburg, the average temperature is 20°C (69°F), with maximums reaching up to 38°C (101°F) and minimums dropping as low as 0°C (32°F). Travelers should be prepared for a wide range of temperatures during their visit.

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

The chart illustrates September temperature patterns in Keenesburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Keenesburg, September typically has an average temperature of 20°C (69°F), with highs reaching up to 38°C (101°F) and lows dropping to around 0°C (32°F).

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

September Precipitation in Keenesburg

In Keenesburg in September, the precipitation amount is 26 mm (1.0 in) over the course of 5 days.

September Precipitation Trends in Keenesburg

The chart displays monthly precipitation patterns in Keenesburg, 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 Keenesburg, September typically receives around 26 mm (1.0 inches) of precipitation spread over approximately 5 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 Keenesburg

In Keenesburg in September humidity is 79%. With an average temperature of 20°C (69°F), this humidity feels like a warm, steamy embrace, making travel slightly uncomfortable as the air feels heavy and sticky, often leaving you yearning for a cool breeze or air conditioning to escape the dampness.

September Average Humidity in Keenesburg

This chart illustrates the average monthly humidity levels in Keenesburg, 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 Keenesburg is approximately 79%, 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 Keenesburg

In Keenesburg 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 Keenesburg.

Maximum UV Index Levels in Keenesburg for September

The chart shows the monthly maximum UV Index (UVI) for Keenesburg 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 Keenesburg typically reaches 9, which falls under the very high exposure category.

Data source: Keenesburg 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 Keenesburg Compares to Other Months

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

This table compares monthly weather conditions in Keenesburg, 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)	15 mm (0.6 inches)	74%	moderate
February Weather	0°C (32°F)	15 mm (0.6 inches)	75%	moderate
March Weather	6°C (43°F)	52 mm (2.0 inches)	66%	high
April Weather	10°C (50°F)	43 mm (1.7 inches)	62%	very high
May Weather	15°C (59°F)	99 mm (3.9 inches)	74%	extreme
June Weather	22°C (72°F)	45 mm (1.8 inches)	76%	extreme
July Weather	25°C (77°F)	43 mm (1.7 inches)	75%	extreme
August Weather	24°C (75°F)	39 mm (1.5 inches)	80%	extreme
September Weather	20°C (69°F)	26 mm (1.0 inches)	79%	very high
October Weather	10°C (51°F)	26 mm (1.0 inches)	77%	high
November Weather	6°C (42°F)	17 mm (0.7 inches)	74%	moderate
December Weather	1°C (34°F)	8 mm (0.3 inches)	80%	moderate