nomadseason

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 (72°F). However, don't let that fool you, as temperatures can range from a cool 7°C (46°F) to a sweltering 35°C (95°F). Expect some rain too, with 63 mm (2.5 in) of precipitation spread over 7 days, and with an average humidity level of 76%, it's a great time to stay hydrated and enjoy the ambiance!

September Temperature in Troy

In September in Troy, the average temperature is 22°C (72°F). Maximums can reach 35°C (95°F), while minimums can dip as low as 7°C (46°F). This variability makes it essential to pack both light clothing for the warm days and layers for cooler evenings when traveling.

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 (72°F), with highs reaching up to 35°C (95°F) and lows dropping to around 7°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec323446546776797672584438
Data source: Temperature data for Troy generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Troy

In Troy in September, the precipitation amount is 63 mm (2.5 in) over a span of 7 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 63 mm (2.5 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec697313012116296107138631026649
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Troy

In Troy in September humidity is 76%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace, making travel slightly uncomfortable as you navigate through the thick, saturated air.

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 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%80%82%83%81%80%76%76%85%86%
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.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109643
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.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)69 mm (2.7 inches)82%moderate
February Weather1°C (35°F)73 mm (2.9 inches)80%moderate
March Weather8°C (46°F)130 mm (5.1 inches)80%high
April Weather12°C (55°F)121 mm (4.8 inches)80%very high
May Weather19°C (67°F)162 mm (6.4 inches)82%very high
June Weather25°C (76°F)96 mm (3.8 inches)83%extreme
July Weather26°C (80°F)107 mm (4.2 inches)81%extreme
August Weather24°C (76°F)137 mm (5.4 inches)80%very high
September Weather22°C (72°F)63 mm (2.5 inches)76%very high
October Weather15°C (58°F)102 mm (4.0 inches)76%high
November Weather7°C (44°F)66 mm (2.6 inches)85%moderate
December Weather3°C (39°F)49 mm (1.9 inches)86%moderate

Compare Troy's Climate with Cities Worldwide