Last updated: June 24, 2025
In New Milford, United States, the average temperature in September hovers around 18°C (64°F), making it a pleasant time to visit. Expect minimums as low as 1°C (34°F) and highs reaching up to 32°C (89°F). During this month, precipitation averages 93 mm (3.7 in) over 10 days, accompanied by a comfortable average humidity of 66%.
In September in New Milford, the average temperature is 18°C (64°F). Maximum temperatures can reach 32°C (89°F), while minimums can drop as low as 1°C (34°F). It's advisable to pack a variety of clothing to accommodate both warm and cooler weather during your travels.
In New Milford in September, the precipitation amount is 93 mm (3.7 in) over the course of 10 days.
In New Milford in September humidity is 66%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace that can make outdoor activities slightly uncomfortable if you aren't properly hydrated. Travelers might find themselves longing for shade and refreshing drinks as they explore, but the pleasant temperatures still allow for enjoyable adventures with the right precautions.
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.
UV Risk Categories
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.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (27°F) | 74 mm (2.9 inches) | 87% | moderate |
| February Weather | -1°C (30°F) | 93 mm (3.6 inches) | 85% | moderate |
| March Weather | 2°C (36°F) | 89 mm (3.5 inches) | 85% | high |
| April Weather | 8°C (47°F) | 113 mm (4.4 inches) | 83% | very high |
| May Weather | 15°C (58°F) | 131 mm (5.2 inches) | 75% | very high |
| June Weather | 19°C (67°F) | 96 mm (3.8 inches) | 73% | very high |
| July Weather | 22°C (73°F) | 112 mm (4.4 inches) | 65% | very high |
| August Weather | 21°C (71°F) | 107 mm (4.2 inches) | 62% | very high |
| September Weather | 18°C (64°F) | 93 mm (3.7 inches) | 66% | very high |
| October Weather | 12°C (54°F) | 135 mm (5.3 inches) | 79% | high |
| November Weather | 4°C (39°F) | 92 mm (3.6 inches) | 87% | moderate |
| December Weather | 0°C (32°F) | 90 mm (3.5 inches) | 85% | low |