Last updated: June 24, 2025
In September, the average temperature in Benton City, United States is a pleasant 21°C (69°F). However, temperatures can vary significantly, with a minimum of 5°C (41°F) and soaring up to a maximum of 39°C (103°F). The month experiences a modest precipitation of 8 mm (0.3 in) over just 2 days, while the average humidity hovers around 60%, creating a comfortable environment for outdoor activities.
In September in Benton City, the average temperature is 21°C (69°F), with maximums reaching up to 39°C (103°F) and minimums dipping as low as 5°C (41°F). Be prepared for a wide range of temperatures, making it essential to pack clothing suitable for both warm and cooler conditions while traveling.
In Benton City in September, the precipitation amount is 8 mm (0.3 in) over the course of 2 days.
In Benton City in September, humidity is 60%. With an average temperature of 21°C (69°F), this humidity feels like a warm embrace, making it perfect for leisurely strolls and outdoor adventures, though you might want to stay hydrated and take breaks in shaded areas for a comfortable travel experience.
In Benton City 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 Benton City.
UV Risk Categories
Weather in Benton City varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Benton City, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (35°F) | 37 mm (1.5 inches) | 85% | low |
| February Weather | 2°C (36°F) | 38 mm (1.5 inches) | 86% | moderate |
| March Weather | 8°C (47°F) | 24 mm (1.0 inches) | 86% | moderate |
| April Weather | 13°C (56°F) | 21 mm (0.8 inches) | 82% | high |
| May Weather | 19°C (67°F) | 14 mm (0.5 inches) | 77% | very high |
| June Weather | 24°C (75°F) | 6 mm (0.2 inches) | 79% | very high |
| July Weather | 28°C (82°F) | 0 mm (0.0 inches) | 77% | very high |
| August Weather | 27°C (81°F) | 3 mm (0.1 inches) | 62% | very high |
| September Weather | 21°C (69°F) | 8 mm (0.3 inches) | 60% | high |
| October Weather | 12°C (54°F) | 23 mm (0.9 inches) | 80% | moderate |
| November Weather | 5°C (42°F) | 30 mm (1.2 inches) | 87% | moderate |
| December Weather | 2°C (35°F) | 30 mm (1.2 inches) | 86% | low |