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September Weather in New Milford, United States

Last updated: June 24, 2025

The average temperature in New Milford, United States during September is a pleasant 19°C (67°F). Expect temperatures to range from a minimum of 2°C (36°F) to a maximum of 34°C (93°F). With an average precipitation of 110 mm (4.3 in) spread over about 10 days, and a comfortable humidity level of 79%, this month offers a unique blend of climate experiences!

September Temperature in New Milford

In September in New Milford, the average temperature is 19°C (67°F). Maximums can reach 34°C (93°F), while minimums can be as low as 2°C (36°F). Pack accordingly to enjoy a range of outdoor activities in this diverse climate!

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

The chart illustrates September temperature patterns in New Milford, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In New Milford, September typically has an average temperature of 19°C (67°F), with highs reaching up to 34°C (93°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec232538476072757267533731
Data source: Temperature data for New Milford 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 Milford

In New Milford in September, the precipitation amount is 110 mm (4.3 in) over a period of 10 days.

September Precipitation Trends in New Milford

The chart displays monthly precipitation patterns in New Milford, 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 Milford, September typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec60557010215611174811101124850
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in New Milford

In New Milford in September, humidity is 79%. With an average temperature of 19°C (67°F), this humidity feels like a warm, enveloping blanket that makes traveling a bit more challenging, as the air is thick and can leave you feeling sluggish during outdoor adventures.

September Average Humidity in New Milford

This chart illustrates the average monthly humidity levels in New Milford, 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 Milford is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%85%85%78%80%78%76%79%83%88%82%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in New Milford

In New Milford 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 Milford.

Maximum UV Index Levels in New Milford for September

The chart shows the monthly maximum UV Index (UVI) for New Milford 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 Milford typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098532
Data source: New Milford 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 Milford Compares to Other Months

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

This table compares monthly weather conditions in New Milford, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (23°F)60 mm (2.4 inches)85%moderate
February Weather-4°C (25°F)55 mm (2.2 inches)85%moderate
March Weather3°C (38°F)70 mm (2.8 inches)85%high
April Weather9°C (48°F)102 mm (4.0 inches)85%very high
May Weather16°C (61°F)156 mm (6.1 inches)78%very high
June Weather22°C (72°F)111 mm (4.4 inches)80%very high
July Weather24°C (76°F)74 mm (2.9 inches)78%very high
August Weather22°C (73°F)81 mm (3.2 inches)76%very high
September Weather19°C (67°F)110 mm (4.3 inches)79%very high
October Weather12°C (53°F)112 mm (4.4 inches)83%moderate
November Weather3°C (38°F)48 mm (1.9 inches)88%moderate
December Weather0°C (31°F)50 mm (2.0 inches)81%low

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