Last updated: June 24, 2025
In September, the average temperature in Clinton, United States hovers around 19°C (67°F), offering a comfortable climate for outdoor activities. However, be prepared for fluctuations, as temperatures can dip to a chilly 2°C (37°F) or soar up to a sweltering 34°C (93°F). Alongside these varying temperatures, precipitation averages 61 mm (2.4 in) spread over 8 days, resulting in an average humidity of 78%—perfect for lush, green landscapes!
In September in Clinton, the average temperature is 19°C (67°F). The maximum can reach 34°C (93°F) and the minimum can be as low as 2°C (37°F). This makes Clinton a versatile destination for travelers, offering pleasant weather for various outdoor activities and sightseeing.
In Clinton in September, the precipitation amount is 61 mm (2.4 in) distributed over 8 days.
In Clinton in September humidity is 78%. With an average temperature of 19°C (67°F), this humidity feels like a warm, heavy blanket enveloping you, making traveling feel both sticky and sluggish as you navigate through the day.
In Clinton 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 Clinton.
UV Risk Categories
Weather in Clinton varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Clinton, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (27°F) | 67 mm (2.6 inches) | 88% | low |
| February Weather | -2°C (28°F) | 67 mm (2.7 inches) | 87% | moderate |
| March Weather | 3°C (38°F) | 80 mm (3.1 inches) | 87% | moderate |
| April Weather | 9°C (48°F) | 91 mm (3.6 inches) | 87% | very high |
| May Weather | 16°C (60°F) | 129 mm (5.1 inches) | 81% | very high |
| June Weather | 21°C (71°F) | 87 mm (3.4 inches) | 82% | very high |
| July Weather | 24°C (75°F) | 107 mm (4.2 inches) | 81% | very high |
| August Weather | 22°C (73°F) | 71 mm (2.8 inches) | 78% | very high |
| September Weather | 19°C (67°F) | 61 mm (2.4 inches) | 78% | very high |
| October Weather | 12°C (55°F) | 103 mm (4.1 inches) | 82% | high |
| November Weather | 4°C (40°F) | 82 mm (3.2 inches) | 89% | moderate |
| December Weather | 0°C (33°F) | 53 mm (2.1 inches) | 86% | low |