Last updated: June 24, 2025
In Green Mountain Falls, United States, the average temperature in September is a comfortable 14°C (57°F). However, prepare for a temperature range where it can dip to a chilly -5°C (23°F) or soar to a warm 29°C (85°F). During this month, anticipate 48 mm (1.9 in) of precipitation spread across 9 days, contributing to an average humidity of 65%. Stay ready for a variety of weather as you explore this vibrant destination!
In September in Green Mountain Falls, the average temperature is 14°C (57°F), with maximums reaching up to 29°C (85°F) and minimums dropping as low as -5°C (23°F). This diverse temperature range makes Green Mountain Falls an ideal destination for travelers seeking both warm and cool experiences.
In Green Mountain Falls in September, the total precipitation amount is 48 mm (1.9 in) spread over 9 days.
In Green Mountain Falls in September, humidity is 65%. With an average temperature of 14°C (57°F), this humidity feels like a mild embrace, making it comfortable for traveling, though some may find it slightly muggy.
In Green Mountain Falls in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Green Mountain Falls.
UV Risk Categories
Weather in Green Mountain Falls varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Green Mountain Falls, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (22°F) | 19 mm (0.7 inches) | 88% | moderate |
| February Weather | -6°C (21°F) | 26 mm (1.0 inches) | 87% | high |
| March Weather | -1°C (31°F) | 55 mm (2.2 inches) | 81% | very high |
| April Weather | 3°C (37°F) | 55 mm (2.1 inches) | 76% | extreme |
| May Weather | 8°C (48°F) | 101 mm (4.0 inches) | 66% | extreme |
| June Weather | 15°C (60°F) | 65 mm (2.5 inches) | 58% | extreme |
| July Weather | 18°C (64°F) | 118 mm (4.7 inches) | 52% | extreme |
| August Weather | 17°C (63°F) | 75 mm (2.9 inches) | 56% | extreme |
| September Weather | 14°C (57°F) | 48 mm (1.9 inches) | 65% | very high |
| October Weather | 5°C (42°F) | 37 mm (1.5 inches) | 76% | high |
| November Weather | 0°C (33°F) | 23 mm (0.9 inches) | 82% | moderate |
| December Weather | -4°C (24°F) | 14 mm (0.5 inches) | 89% | moderate |