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September Weather in Unadilla, United States

Last updated: June 24, 2025

In September, the average temperature in Unadilla, United States hovers around 17°C (62°F). While you may enjoy mild weather, be prepared for temperature swings, as lows can dip to 0°C (32°F) and highs can reach up to 30°C (87°F). Expect some rain, with 107 mm (4.2 in) of precipitation spread over 9 days, and a humidity level of approximately 78%, making the air feel quite rich.

September Temperature in Unadilla

In September in Unadilla, the average temperature is 17°C (62°F). Maximums can reach 30°C (87°F), and minimums can drop as low as 0°C (32°F). Overall, this climate makes Unadilla an ideal destination for travelers seeking a pleasant mix of warm and cool weather.

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

The chart illustrates September temperature patterns in Unadilla, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Unadilla, September typically has an average temperature of 17°C (62°F), with highs reaching up to 30°C (87°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec242733455765706862523730
Data source: Temperature data for Unadilla generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Unadilla

In Unadilla in September, the precipitation amount is 107 mm (4.2 in), occurring over a span of 9 days.

September Precipitation Trends in Unadilla

The chart displays monthly precipitation patterns in Unadilla, 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 Unadilla, September typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec79948912513011113312110714810395
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Unadilla

In Unadilla in September, humidity is 78%. With an average temperature of 17°C (62°F), this humidity feels like a warm, enveloping blanket, making travel feel a bit sticky and heavy but also refreshing, as long as you're prepared with light clothing and plenty of water.

September Average Humidity in Unadilla

This chart illustrates the average monthly humidity levels in Unadilla, 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 Unadilla is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%87%88%82%79%78%76%78%84%89%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Unadilla

In Unadilla 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 Unadilla.

Maximum UV Index Levels in Unadilla for September

The chart shows the monthly maximum UV Index (UVI) for Unadilla 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 Unadilla typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346910101098642
Data source: Unadilla 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 Unadilla Compares to Other Months

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

This table compares monthly weather conditions in Unadilla, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)79 mm (3.1 inches)90%moderate
February Weather-3°C (28°F)94 mm (3.7 inches)90%moderate
March Weather1°C (33°F)89 mm (3.5 inches)87%high
April Weather7°C (45°F)125 mm (4.9 inches)88%very high
May Weather14°C (57°F)130 mm (5.1 inches)82%very high
June Weather18°C (65°F)111 mm (4.4 inches)79%very high
July Weather21°C (71°F)133 mm (5.3 inches)78%very high
August Weather20°C (69°F)121 mm (4.8 inches)76%very high
September Weather17°C (62°F)107 mm (4.2 inches)78%very high
October Weather11°C (52°F)148 mm (5.8 inches)84%high
November Weather3°C (37°F)103 mm (4.0 inches)89%moderate
December Weather-1°C (30°F)94 mm (3.7 inches)86%low

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