September Weather in Troy, United States

Last updated: June 24, 2025

In September, the average temperature in Troy, United States is a pleasant 22°C (71°F). However, temperatures can vary significantly, with minimums dipping to 6°C (44°F) and maximums soaring to 35°C (95°F). Humidity tends to be on the higher side at 71%, and you might encounter some rain, with 86 mm (3.4 in) of precipitation expected over 9 days. Enjoy this dynamic climate!

September Temperature in Troy

In September in Troy, the average temperature is 22°C (71°F). The maximum can reach 35°C (95°F), while the minimum can drop as low as 6°C (44°F). This makes it an ideal destination for travelers seeking a warm climate with comfortable temperatures during the day and cooler evenings.

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

The chart illustrates September temperature patterns in Troy, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Troy, September typically has an average temperature of 22°C (71°F), with highs reaching up to 35°C (95°F) and lows dropping to around 6°C (44°F).

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

September Precipitation in Troy

In Troy in September, the precipitation amount is 86 mm (3.4 in), falling over the course of 9 days.

September Precipitation Trends in Troy

The chart displays monthly precipitation patterns in Troy, 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 Troy, September typically receives around 86 mm (3.4 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 Troy

In Troy in September, humidity is 71%. With an average temperature of 22°C (71°F), this humidity feels like a warm embrace, making outdoor activities enjoyable yet requiring plenty of hydration to stay comfortable while exploring.

September Average Humidity in Troy

This chart illustrates the average monthly humidity levels in Troy, 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 Troy is approximately 71%, 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 Troy

In Troy 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 Troy.

Maximum UV Index Levels in Troy for September

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

Data source: Troy 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 Troy Compares to Other Months

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

This table compares monthly weather conditions in Troy, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (29°F)	44 mm (1.7 inches)	76%	moderate
February Weather	-1°C (31°F)	33 mm (1.3 inches)	77%	moderate
March Weather	7°C (45°F)	93 mm (3.7 inches)	70%	high
April Weather	12°C (53°F)	82 mm (3.2 inches)	73%	very high
May Weather	18°C (65°F)	183 mm (7.2 inches)	82%	very high
June Weather	25°C (77°F)	126 mm (4.9 inches)	82%	extreme
July Weather	26°C (79°F)	94 mm (3.7 inches)	81%	extreme
August Weather	24°C (76°F)	112 mm (4.4 inches)	78%	very high
September Weather	22°C (71°F)	86 mm (3.4 inches)	71%	very high
October Weather	13°C (56°F)	130 mm (5.1 inches)	71%	high
November Weather	6°C (43°F)	43 mm (1.7 inches)	81%	moderate
December Weather	2°C (36°F)	35 mm (1.4 inches)	84%	moderate