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September Weather in New Hartford, United States

Last updated: June 24, 2025

In September, the average temperature in New Hartford, United States hovers around 17°C (62°F). However, be prepared for fluctuations, as temperatures can dip to a chilly 0°C (31°F) or soar to a warm 32°C (90°F). Expect 96 mm (3.8 in) of precipitation spread over 10 days, contributing to an average humidity of 78%. Stay cool and enjoy the season!

September Temperature in New Hartford

In September in New Hartford, the average temperature is 17°C (62°F). Maximum temperatures can reach 32°C (90°F), while minimums can drop as low as 0°C (31°F). It's a great time to explore New Hartford with its pleasant weather and variety of activities!

September Weather in New Hartford: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in New Hartford, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In New Hartford, September typically has an average temperature of 17°C (62°F), with highs reaching up to 32°C (90°F) and lows dropping to around 0°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec242733455766716962523729
Data source: Temperature data for New Hartford 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 New Hartford

In New Hartford in September, the total precipitation amount is 96 mm (3.8 in) over a span of 10 days.

September Precipitation Trends in New Hartford

The chart displays monthly precipitation patterns in New Hartford, 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 New Hartford, September typically receives around 96 mm (3.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec941069612613412116213296175115110
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in New Hartford

In New Hartford 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 New Hartford

This chart illustrates the average monthly humidity levels in New Hartford, 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 New Hartford 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 New Hartford

In New Hartford 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 New Hartford.

Maximum UV Index Levels in New Hartford for September

The chart shows the monthly maximum UV Index (UVI) for New Hartford 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 New Hartford typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468910998632
Data source: New Hartford 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 New Hartford Compares to Other Months

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

This table compares monthly weather conditions in New Hartford, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)94 mm (3.7 inches)90%moderate
February Weather-3°C (27°F)106 mm (4.2 inches)90%moderate
March Weather1°C (33°F)96 mm (3.8 inches)87%high
April Weather7°C (45°F)126 mm (5.0 inches)88%very high
May Weather14°C (58°F)133 mm (5.3 inches)82%very high
June Weather19°C (66°F)121 mm (4.8 inches)79%very high
July Weather22°C (71°F)161 mm (6.4 inches)78%very high
August Weather20°C (69°F)132 mm (5.2 inches)76%very high
September Weather17°C (62°F)96 mm (3.8 inches)78%very high
October Weather11°C (52°F)175 mm (6.9 inches)84%high
November Weather3°C (37°F)115 mm (4.5 inches)89%moderate
December Weather-2°C (30°F)110 mm (4.3 inches)86%low

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