Last updated: June 24, 2025
In September, the average temperature in Port Allegany, United States hovers around a comfortable 16°C (62°F). Expect a range of temperatures, with minimums reaching 0°C (33°F) and maximums soaring to 30°C (87°F). During this month, you can anticipate about 99 mm (3.9 in) of precipitation over 10 days, complemented by an average humidity of 67%. Whether you're planning a visit or simply curious about the climate, these figures provide a vivid snapshot of what to expect!
In September in Port Allegany, the average temperature is 16°C (62°F). Maximums can reach 30°C (87°F) and minimums can be as low as 0°C (33°F). This variation makes it advisable to pack layers and be prepared for both warm and cool weather during your travels.
In Port Allegany in September, the total precipitation amount is 99 mm (3.9 in) spread over a period of 10 days.
In Port Allegany in September, humidity is 67%. With an average temperature of 16°C (62°F), this humidity feels like a warm, enveloping embrace, making outdoor explorations comfortable yet slightly damp, perfect for leisurely strolls and enjoying the vibrant local culture.
In Port Allegany 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 Port Allegany.
UV Risk Categories
Weather in Port Allegany varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Port Allegany, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (25°F) | 85 mm (3.3 inches) | 89% | moderate |
| February Weather | -2°C (28°F) | 100 mm (3.9 inches) | 90% | moderate |
| March Weather | 1°C (35°F) | 91 mm (3.6 inches) | 89% | high |
| April Weather | 7°C (45°F) | 118 mm (4.6 inches) | 88% | very high |
| May Weather | 14°C (57°F) | 142 mm (5.6 inches) | 80% | very high |
| June Weather | 18°C (65°F) | 115 mm (4.5 inches) | 79% | very high |
| July Weather | 21°C (70°F) | 119 mm (4.7 inches) | 74% | very high |
| August Weather | 20°C (68°F) | 98 mm (3.8 inches) | 64% | very high |
| September Weather | 16°C (62°F) | 99 mm (3.9 inches) | 67% | very high |
| October Weather | 11°C (52°F) | 125 mm (4.9 inches) | 81% | high |
| November Weather | 3°C (37°F) | 94 mm (3.7 inches) | 89% | moderate |
| December Weather | -1°C (31°F) | 94 mm (3.7 inches) | 88% | low |