Last updated: June 24, 2025
In September, the average temperature in Hayfork, United States hovers around 18°C (65°F), with a range that can dip as low as 0°C (32°F) and soar up to 37°C (100°F). Expect light showers, with an average precipitation of 13 mm (0.5 in) over 3 days, and enjoy a comfortable average humidity level of 62%.
In September in Hayfork, the average temperature is 18°C (65°F), with maximums reaching up to 37°C (100°F) and minimums dropping as low as 0°C (32°F). Be prepared for a wide range of temperatures when traveling to Hayfork during this time.
In Hayfork in September, the precipitation amount is 13 mm (0.5 in) over a span of 3 days.
In Hayfork in September, humidity is 62%. With an average temperature of 18°C (65°F), this humidity feels like a warm embrace, making outdoor activities enjoyable yet mildly sticky, perfect for leisurely strolls but a bit challenging for vigorous excursions.
In Hayfork in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Hayfork.
UV Risk Categories
Weather in Hayfork varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Hayfork, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 4°C (39°F) | 171 mm (6.7 inches) | 86% | moderate |
February Weather | 4°C (40°F) | 165 mm (6.5 inches) | 85% | moderate |
March Weather | 6°C (43°F) | 133 mm (5.2 inches) | 85% | high |
April Weather | 9°C (49°F) | 77 mm (3.0 inches) | 82% | very high |
May Weather | 13°C (56°F) | 53 mm (2.1 inches) | 81% | extreme |
June Weather | 18°C (65°F) | 12 mm (0.5 inches) | 79% | extreme |
July Weather | 23°C (73°F) | 2 mm (0.1 inches) | 70% | extreme |
August Weather | 22°C (72°F) | 3 mm (0.1 inches) | 60% | very high |
September Weather | 18°C (65°F) | 13 mm (0.5 inches) | 62% | very high |
October Weather | 12°C (55°F) | 49 mm (1.9 inches) | 72% | high |
November Weather | 7°C (46°F) | 101 mm (4.0 inches) | 87% | moderate |
December Weather | 3°C (38°F) | 125 mm (4.9 inches) | 86% | moderate |