Last updated: June 24, 2025
In September, the average temperature in Oil City, United States is a pleasant 18°C (64°F). Expect a minimum of 2°C (37°F) and a maximum of 31°C (89°F), providing a broad range for outdoor activities. However, be prepared for some rain, as 110 mm (4.3 in) of precipitation can occur over 10 days. With an average humidity of 67%, it’s a month that beautifully balances warmth with refreshing moisture.
In September in Oil City, the average temperature is 18°C (64°F). Maximums can reach 31°C (89°F), and minimums can be as low as 2°C (37°F). This climate offers a delightful mix of warm days and cool nights, making it an ideal time for travelers to explore the region.
In Oil City in September, the precipitation amount is 110 mm (4.3 in) over a period of 10 days.
In Oil City in September humidity is 67%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making travel quite comfortable but slightly sticky, encouraging lightweight clothing and the occasional refreshing break in the shade.
In Oil City 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 Oil City.
UV Risk Categories
Weather in Oil City varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Oil City, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (27°F) | 103 mm (4.0 inches) | 89% | moderate |
| February Weather | -1°C (30°F) | 113 mm (4.4 inches) | 90% | moderate |
| March Weather | 3°C (37°F) | 111 mm (4.4 inches) | 89% | high |
| April Weather | 8°C (47°F) | 137 mm (5.4 inches) | 88% | very high |
| May Weather | 15°C (59°F) | 152 mm (6.0 inches) | 80% | very high |
| June Weather | 19°C (67°F) | 145 mm (5.7 inches) | 79% | very high |
| July Weather | 22°C (72°F) | 147 mm (5.8 inches) | 74% | very high |
| August Weather | 21°C (70°F) | 113 mm (4.4 inches) | 64% | very high |
| September Weather | 18°C (64°F) | 110 mm (4.3 inches) | 67% | very high |
| October Weather | 12°C (54°F) | 128 mm (5.0 inches) | 81% | high |
| November Weather | 4°C (39°F) | 110 mm (4.3 inches) | 89% | moderate |
| December Weather | 0°C (33°F) | 108 mm (4.2 inches) | 88% | low |