Last updated: June 24, 2025
In Fox River, United States, the average temperature in December hovers around -4°C (25°F), with a minimum that can dip as low as -20°C (-3°F) and a maximum reaching 6°C (43°F). Expect significant precipitation, with an average of 244 mm (9.6 in) spread over 20 days, contributing to a notably high average humidity of 92%. Stay prepared for the chilly and damp conditions!
In December in Fox River, the average temperature is -4°C (25°F). Maximums can reach 6°C (43°F), while minimums can drop as low as -20°C (-3°F). Be prepared for cold weather and pack accordingly if you're planning to travel during this time.
In Fox River in December, the precipitation amount is 244 mm (9.6 in) distributed over 20 days.
In Fox River in December, humidity is 92%. With an average temperature of -4°C (25°F), this humidity feels like stepping into a frosty cloud, making it challenging for travelers as the cold air clings to the skin and enhances the chill, requiring extra layers to stay warm while exploring.
In Fox River in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Fox River.
UV Risk Categories
Weather in Fox River varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Fox River, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -7°C (20°F) | 144 mm (5.7 inches) | 92% | low |
| February Weather | -5°C (23°F) | 95 mm (3.7 inches) | 92% | low |
| March Weather | -5°C (24°F) | 91 mm (3.6 inches) | 86% | moderate |
| April Weather | 1°C (33°F) | 86 mm (3.4 inches) | 79% | moderate |
| May Weather | 4°C (40°F) | 128 mm (5.0 inches) | 87% | high |
| June Weather | 10°C (50°F) | 77 mm (3.0 inches) | 91% | high |
| July Weather | 13°C (56°F) | 83 mm (3.3 inches) | 92% | high |
| August Weather | 12°C (54°F) | 101 mm (4.0 inches) | 92% | high |
| September Weather | 8°C (47°F) | 150 mm (5.9 inches) | 90% | moderate |
| October Weather | 3°C (37°F) | 215 mm (8.5 inches) | 87% | low |
| November Weather | -5°C (24°F) | 166 mm (6.5 inches) | 91% | low |
| December Weather | -4°C (25°F) | 244 mm (9.6 inches) | 92% | low |