Last updated: June 24, 2025
In September, the average temperature in West Swanzey, United States hovers around 18°C (64°F). Here, you can expect minimum temperatures dipping to 0°C (33°F) and peaking at a warm 33°C (91°F). With an average precipitation of 83 mm (3.3 in) spread over 8 days, the air carries a humidity level of about 71%.
In September in West Swanzey, the average temperature is 18°C (64°F), with maximums reaching 33°C (91°F) and minimums dropping as low as 0°C (33°F). This wide temperature range makes it essential for travelers to pack layers to ensure comfort throughout their stay.
In West Swanzey in September, the precipitation amount reaches 83 mm (3.3 in) over the course of 8 days.
In West Swanzey in September, humidity is 71%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making traveling a bit sticky but still pleasant as the warmth envelops you, urging you to explore the vibrant surroundings while staying hydrated.
In West Swanzey 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 Swanzey.
UV Risk Categories
Weather in West Swanzey varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in West Swanzey, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (26°F) | 74 mm (2.9 inches) | 86% | moderate |
| February Weather | -2°C (29°F) | 86 mm (3.4 inches) | 84% | moderate |
| March Weather | 1°C (34°F) | 79 mm (3.1 inches) | 82% | high |
| April Weather | 8°C (46°F) | 124 mm (4.9 inches) | 80% | very high |
| May Weather | 14°C (58°F) | 84 mm (3.3 inches) | 72% | very high |
| June Weather | 20°C (68°F) | 75 mm (3.0 inches) | 72% | very high |
| July Weather | 23°C (73°F) | 123 mm (4.9 inches) | 67% | very high |
| August Weather | 22°C (71°F) | 83 mm (3.3 inches) | 66% | very high |
| September Weather | 18°C (64°F) | 83 mm (3.3 inches) | 71% | high |
| October Weather | 11°C (53°F) | 133 mm (5.3 inches) | 78% | high |
| November Weather | 4°C (39°F) | 100 mm (3.9 inches) | 84% | moderate |
| December Weather | -1°C (30°F) | 117 mm (4.6 inches) | 81% | low |