September Weather in Henry, United States

Last updated: June 24, 2025

In Henry, United States during the month of September, the average temperature hovers around 21°C (69°F). Expect a range that can dip to a chilly 5°C (41°F) and soar to a sweltering 35°C (95°F). With an average precipitation of 77 mm (3.0 in) spread across 9 days, you'll find the humidity thick at around 80%. Plan your activities accordingly to enjoy everything this vibrant locale has to offer!

September Temperature in Henry

In September in Henry, the average temperature is 21°C (69°F). The maximum can reach 35°C (95°F) and the minimum can be as low as 5°C (41°F). It’s advisable to pack versatile clothing to accommodate both warm days and cooler evenings during your travels.

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

The chart illustrates September temperature patterns in Henry, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Henry, September typically has an average temperature of 21°C (69°F), with highs reaching up to 35°C (95°F) and lows dropping to around 5°C (41°F).

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

September Precipitation in Henry

In Henry in September, the precipitation amount is 77 mm (3.0 in) over the course of 9 days.

September Precipitation Trends in Henry

The chart displays monthly precipitation patterns in Henry, 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 Henry, September typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 9 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 Henry

In Henry in September, humidity is 80%. With an average temperature of 21°C (69°F), this humidity feels like a warm, sticky embrace, making outdoor activities a bit challenging for travelers as the air becomes heavy and can lead to fatigue while sightseeing.

September Average Humidity in Henry

This chart illustrates the average monthly humidity levels in Henry, 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 Henry is approximately 80%, 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 Henry

In Henry 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 Henry.

Maximum UV Index Levels in Henry for September

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

Data source: Henry 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 Henry Compares to Other Months

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

This table compares monthly weather conditions in Henry, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (26°F)	59 mm (2.3 inches)	82%	moderate
February Weather	-2°C (29°F)	66 mm (2.6 inches)	83%	moderate
March Weather	5°C (41°F)	98 mm (3.9 inches)	84%	high
April Weather	10°C (51°F)	116 mm (4.5 inches)	85%	very high
May Weather	17°C (63°F)	161 mm (6.3 inches)	79%	very high
June Weather	23°C (74°F)	148 mm (5.8 inches)	82%	extreme
July Weather	25°C (77°F)	106 mm (4.2 inches)	80%	very high
August Weather	23°C (74°F)	78 mm (3.1 inches)	81%	very high
September Weather	21°C (69°F)	77 mm (3.0 inches)	80%	very high
October Weather	13°C (56°F)	134 mm (5.3 inches)	82%	high
November Weather	4°C (40°F)	54 mm (2.1 inches)	88%	moderate
December Weather	1°C (34°F)	53 mm (2.1 inches)	84%	low