Last updated: June 24, 2025
In September, the average temperature in Clinton, United States hovers around 24°C (75°F). However, be prepared for a wide range, as temperatures can dip to a chilly 7°C (45°F) or soar up to a blistering 37°C (99°F). During this month, expect approximately 56 mm (2.2 in) of precipitation spread over 6 days, with an average humidity of 64%. Plan accordingly to make the most of your time!
In September in Clinton, the average temperature is 24°C (75°F), with maximums reaching 37°C (99°F) and minimums dropping as low as 7°C (45°F). This variability makes it an ideal time for travelers to experience a range of outdoor activities, from enjoying warm days to cooler evenings.
In Clinton in September, the precipitation amount is 56 mm (2.2 in) spread over 6 days.
In Clinton in September humidity is 64%. With average temperature 24°C (75°F), this humidity feels like a warm blanket enveloping you, making outdoor exploration both refreshing and a little sticky, perfect for leisurely strolls and shaded cafes but with a need for frequent water breaks.
In Clinton 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 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 (38°F) | 31 mm (1.2 inches) | 76% | moderate |
| February Weather | 4°C (39°F) | 25 mm (1.0 inches) | 76% | high |
| March Weather | 11°C (53°F) | 66 mm (2.6 inches) | 70% | very high |
| April Weather | 15°C (59°F) | 82 mm (3.2 inches) | 72% | very high |
| May Weather | 20°C (69°F) | 131 mm (5.2 inches) | 82% | extreme |
| June Weather | 26°C (79°F) | 82 mm (3.2 inches) | 82% | extreme |
| July Weather | 28°C (83°F) | 42 mm (1.6 inches) | 80% | extreme |
| August Weather | 27°C (81°F) | 42 mm (1.7 inches) | 72% | extreme |
| September Weather | 24°C (75°F) | 56 mm (2.2 inches) | 64% | very high |
| October Weather | 16°C (61°F) | 69 mm (2.7 inches) | 71% | high |
| November Weather | 9°C (49°F) | 18 mm (0.7 inches) | 81% | moderate |
| December Weather | 6°C (42°F) | 28 mm (1.1 inches) | 84% | moderate |