Last updated: June 24, 2025
In September, the average temperature in Valley Mills, United States hovers around 27°C (80°F). Expect a wide range, with minimums dipping to 10°C (50°F) and maximums peaking at 39°C (102°F). Rainfall during this month totals approximately 87 mm (3.4 in), spread over about 8 days. The atmosphere is notably humid, with an average humidity of 66%, adding to the region's unique climate experience.
In September in Valley Mills, the average temperature is 27°C (80°F), with maximums reaching 39°C (102°F) and minimums dropping as low as 10°C (50°F). It's advisable to pack for both warm days and cooler evenings when traveling during this time.
In Valley Mills in September, the precipitation amount is 87 mm (3.4 in), which occurs over a span of 8 days.
In Valley Mills in September, humidity is 66%. With an average temperature of 27°C (80°F), this humidity feels like a warm, sticky embrace, making travel a bit more challenging as you may find yourself perspiring more quickly while exploring, but it's also perfect for a refreshing dip in nearby waters.
In Valley Mills 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 Valley Mills.
UV Risk Categories
Weather in Valley Mills varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Valley Mills, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 9°C (49°F) | 54 mm (2.1 inches) | 78% | moderate |
| February Weather | 10°C (51°F) | 78 mm (3.1 inches) | 78% | high |
| March Weather | 17°C (62°F) | 81 mm (3.2 inches) | 77% | very high |
| April Weather | 19°C (67°F) | 92 mm (3.6 inches) | 78% | very high |
| May Weather | 24°C (75°F) | 181 mm (7.1 inches) | 82% | extreme |
| June Weather | 28°C (82°F) | 76 mm (3.0 inches) | 78% | extreme |
| July Weather | 30°C (86°F) | 52 mm (2.0 inches) | 69% | extreme |
| August Weather | 30°C (86°F) | 90 mm (3.6 inches) | 63% | extreme |
| September Weather | 27°C (80°F) | 87 mm (3.4 inches) | 66% | very high |
| October Weather | 21°C (69°F) | 134 mm (5.3 inches) | 73% | very high |
| November Weather | 14°C (58°F) | 44 mm (1.7 inches) | 84% | high |
| December Weather | 12°C (53°F) | 53 mm (2.1 inches) | 87% | moderate |