Last updated: June 24, 2025
In September, the average temperature in Knik-Fairview, United States hovers around 9°C (48°F). Visitors can expect a range from a chilly -7°C (20°F) to a mild 20°C (68°F). With 126 mm (5.0 in) of precipitation spread over 18 days, it's a time to embrace the moisture and keep an umbrella handy. The air can feel quite dense, as humidity averages a staggering 96%!
In September in Knik-Fairview, the average temperature is 9°C (48°F). The maximum can reach 20°C (68°F) and the minimum can be as low as -7°C (20°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.
In Knik-Fairview in September, the precipitation amount is 126 mm (5.0 in) spread over 18 days.
In Knik-Fairview in September humidity is 96%. With an average temperature of 9°C (48°F), this humidity feels like a chilly blanket wrapping around you, making outdoor activities uncomfortable unless you're dressed in layers to combat both the cold and dampness.
In Knik-Fairview in September, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Knik-Fairview for better planning.
UV Risk Categories
Weather in Knik-Fairview varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Knik-Fairview, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -11°C (13°F) | 54 mm (2.1 inches) | 94% | low |
| February Weather | -8°C (17°F) | 55 mm (2.2 inches) | 93% | low |
| March Weather | -5°C (23°F) | 50 mm (2.0 inches) | 91% | moderate |
| April Weather | 2°C (36°F) | 45 mm (1.8 inches) | 85% | moderate |
| May Weather | 9°C (48°F) | 77 mm (3.0 inches) | 88% | high |
| June Weather | 13°C (55°F) | 89 mm (3.5 inches) | 95% | high |
| July Weather | 15°C (60°F) | 100 mm (3.9 inches) | 102% | high |
| August Weather | 13°C (57°F) | 156 mm (6.1 inches) | 100% | moderate |
| September Weather | 9°C (48°F) | 126 mm (5.0 inches) | 96% | moderate |
| October Weather | 3°C (37°F) | 142 mm (5.6 inches) | 91% | low |
| November Weather | -6°C (21°F) | 86 mm (3.4 inches) | 95% | low |
| December Weather | -7°C (20°F) | 101 mm (4.0 inches) | 96% | low |