Last updated: June 24, 2025
In September, the average temperature in West Brattleboro, United States is a pleasant 18°C (64°F). While you might experience a minimum of 0°C (32°F), the days can warm up to a maximum of 33°C (91°F). Expect around 90 mm (3.5 in) of precipitation spread over 8 days, contributing to an average humidity level of 72%. Enjoy the diverse weather this month offers!
In September in West Brattleboro, the average temperature is 18°C (64°F). Maximum temperatures can reach 33°C (91°F), while minimums can dip as low as 0°C (32°F). This diverse range of temperatures makes it advisable for travelers to pack layers for varying weather conditions.
In West Brattleboro in September, the precipitation amount is 90 mm (3.5 in) spread over 8 days, indicating a relatively wet period for the region.
In West Brattleboro in September, humidity is 72%. With an average temperature of 18°C (64°F), this humidity feels like a warm, sticky embrace, making travel somewhat uncomfortable as the air clings to your skin, leaving you longing for a refreshing breeze.
In West Brattleboro in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in West Brattleboro.
UV Risk Categories
Weather in West Brattleboro varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in West Brattleboro, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (26°F) | 77 mm (3.0 inches) | 89% | moderate |
| February Weather | -2°C (29°F) | 90 mm (3.5 inches) | 88% | moderate |
| March Weather | 1°C (35°F) | 76 mm (3.0 inches) | 86% | high |
| April Weather | 8°C (46°F) | 130 mm (5.1 inches) | 84% | very high |
| May Weather | 14°C (58°F) | 88 mm (3.5 inches) | 76% | very high |
| June Weather | 20°C (68°F) | 76 mm (3.0 inches) | 72% | very high |
| July Weather | 23°C (73°F) | 123 mm (4.9 inches) | 66% | very high |
| August Weather | 22°C (71°F) | 90 mm (3.6 inches) | 64% | very high |
| September Weather | 18°C (64°F) | 90 mm (3.5 inches) | 72% | high |
| October Weather | 11°C (53°F) | 148 mm (5.8 inches) | 81% | high |
| November Weather | 4°C (39°F) | 100 mm (3.9 inches) | 87% | moderate |
| December Weather | -1°C (30°F) | 116 mm (4.6 inches) | 84% | low |