September Weather in Russellville, United States

Last updated: June 24, 2025

In Russellville, United States, the average temperature in September reaches a comfortable 24°C (76°F). However, temperatures can vary widely, with a minimum of 11°C (51°F) and a peak of 37°C (99°F). During this time, expect about 117 mm (4.6 in) of precipitation spread across 9 days, contributing to an average humidity of 70%. Stay prepared for both sun and rain!

September Temperature in Russellville

In September in Russellville, the average temperature is 24°C (76°F). Maximums can reach 37°C (99°F) and minimums can be as low as 11°C (51°F). This range makes Russellville an ideal destination for travelers who enjoy warm weather while having the option for cooler evenings.

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

The chart illustrates September temperature patterns in Russellville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Russellville, September typically has an average temperature of 24°C (76°F), with highs reaching up to 37°C (99°F) and lows dropping to around 11°C (51°F).

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

September Precipitation in Russellville

In Russellville in September, the total precipitation amount is 117 mm (4.6 in) spread over a period of 9 days.

September Precipitation Trends in Russellville

The chart displays monthly precipitation patterns in Russellville, 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 Russellville, September typically receives around 117 mm (4.6 inches) of precipitation spread over approximately 9 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 Russellville

In Russellville in September, humidity is 70%. With an average temperature of 24°C (76°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities feel a bit sticky and heavier, so travelers should stay hydrated and take regular breaks to enjoy the sights comfortably.

September Average Humidity in Russellville

This chart illustrates the average monthly humidity levels in Russellville, 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 Russellville is approximately 70%, 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 Russellville

In Russellville 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 Russellville.

Maximum UV Index Levels in Russellville for September

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

Data source: Russellville 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 Russellville Compares to Other Months

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

This table compares monthly weather conditions in Russellville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (44°F)	111 mm (4.4 inches)	86%	moderate
February Weather	9°C (49°F)	186 mm (7.3 inches)	85%	high
March Weather	13°C (56°F)	159 mm (6.3 inches)	84%	very high
April Weather	16°C (62°F)	162 mm (6.4 inches)	81%	very high
May Weather	22°C (71°F)	128 mm (5.1 inches)	83%	extreme
June Weather	25°C (77°F)	127 mm (5.0 inches)	83%	extreme
July Weather	27°C (80°F)	112 mm (4.4 inches)	80%	extreme
August Weather	26°C (80°F)	120 mm (4.7 inches)	73%	very high
September Weather	24°C (76°F)	117 mm (4.6 inches)	70%	very high
October Weather	18°C (65°F)	117 mm (4.6 inches)	73%	high
November Weather	10°C (51°F)	69 mm (2.7 inches)	85%	moderate
December Weather	9°C (48°F)	145 mm (5.7 inches)	88%	moderate