Last updated: June 24, 2025
In December, the average temperature in Appleton, United States hovers around -5°C (23°F). Expect chilly extremes, with minimums plunging to -26°C (-14°F) and maximums reaching up to 13°C (56°F). During this month, precipitation averages 36 mm (1.4 in) over about 6 days of rain or snow, while the average humidity sits at a brisk 84%. Prepare for a frosty atmosphere as you explore this winter wonderland!
In December in Appleton, the average temperature is -5°C (23°F). Maximum temperatures can reach 13°C (56°F), while minimums can drop as low as -26°C (-14°F). Travelers should be prepared for a wide range of temperatures and dress in layers to stay comfortable.
In Appleton in December, the total precipitation amount is 36 mm (1.4 in), which falls over the course of 6 days.
In Appleton in December, humidity is 84%. With an average temperature of -5°C (23°F), this humidity feels like an icy blanket wrapping around you, making the cold air bite even deeper and turning travel into a brisk, challenging adventure where each breath comes with a frosty reminder of the chill.
In Appleton in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Appleton, you can visit Hourly UV Index in Appleton.
UV Risk Categories
Weather in Appleton varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Appleton, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -10°C (14°F) | 20 mm (0.8 inches) | 85% | moderate |
| February Weather | -10°C (15°F) | 18 mm (0.7 inches) | 89% | moderate |
| March Weather | 0°C (31°F) | 47 mm (1.9 inches) | 81% | moderate |
| April Weather | 5°C (42°F) | 66 mm (2.6 inches) | 82% | high |
| May Weather | 15°C (58°F) | 92 mm (3.6 inches) | 76% | very high |
| June Weather | 22°C (72°F) | 84 mm (3.3 inches) | 81% | very high |
| July Weather | 23°C (74°F) | 101 mm (4.0 inches) | 82% | very high |
| August Weather | 21°C (70°F) | 135 mm (5.3 inches) | 83% | very high |
| September Weather | 17°C (64°F) | 82 mm (3.2 inches) | 82% | high |
| October Weather | 8°C (48°F) | 82 mm (3.2 inches) | 82% | moderate |
| November Weather | 1°C (33°F) | 25 mm (1.0 inches) | 87% | moderate |
| December Weather | -5°C (23°F) | 36 mm (1.4 inches) | 84% | low |