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September Weather in New Hartford, United States

Last updated: June 24, 2025

In New Hartford, United States, the average temperature in September hovers around 19°C (67°F). Expect chilly lows of 2°C (37°F) and warm highs reaching up to 33°C (92°F). Be prepared for a bit of moisture, as this month sees around 117 mm (4.6 in) of precipitation over 10 days, coupled with an average humidity of 75%.

September Temperature in New Hartford

In September in New Hartford, the average temperature is 19°C (67°F). Maximums can reach 33°C (92°F), and minimums can be as low as 2°C (37°F). This variety in temperatures makes it essential for travelers to pack accordingly for both warm and cool conditions.

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 19°C (67°F), with highs reaching up to 33°C (92°F) and lows dropping to around 2°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec202137476173757166513629
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 117 mm (4.6 in) recorded 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 117 mm (4.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec41507378160134104961171344936
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 75%. With an average temperature of 19°C (67°F), this humidity feels like a warm embrace, making travel invigorating yet slightly sticky, as you navigate through the vibrant streets or scenic landscapes.

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 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%80%81%74%81%80%77%75%80%87%83%
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.
JanFebMarAprMayJunJulAugSepOctNovDec35689111098533
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-7°C (20°F)41 mm (1.6 inches)82%moderate
February Weather-6°C (21°F)50 mm (2.0 inches)84%moderate
March Weather3°C (37°F)73 mm (2.9 inches)80%high
April Weather8°C (47°F)78 mm (3.1 inches)81%very high
May Weather16°C (61°F)160 mm (6.3 inches)74%very high
June Weather23°C (73°F)134 mm (5.3 inches)80%extreme
July Weather24°C (75°F)104 mm (4.1 inches)80%very high
August Weather22°C (72°F)96 mm (3.8 inches)77%very high
September Weather19°C (67°F)117 mm (4.6 inches)75%very high
October Weather11°C (51°F)134 mm (5.3 inches)80%moderate
November Weather2°C (37°F)49 mm (1.9 inches)87%moderate
December Weather-2°C (29°F)36 mm (1.4 inches)83%moderate

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