Last updated: June 24, 2025
In December, the average temperature in Appleton, United States hovers around -3°C (27°F), making it a chilly time of year. Expect temperatures to dive as low as -26°C (-15°F), while occasionally reaching a comfortable 17°C (62°F). During this month, precipitation averages 52 mm (2.1 in) spread over about 7 days, contributing to a high average humidity of 87%. Bundle up and enjoy the winter wonderland!
In December in Appleton, the average temperature is -3°C (27°F), with maximums reaching up to 17°C (62°F) and minimums plummeting as low as -26°C (-15°F). This diverse range of temperatures means travelers should be prepared for both chilly days and the possibility of milder weather during their visit.
In Appleton in December, the precipitation amount is 52 mm (2.1 in) over the course of 7 days.
In Appleton in December humidity is 87%. With an average temperature of -3°C (27°F), this humidity feels like an icy blanket that wraps around you, making outdoor activities challenging as the cold air mingles with the dampness, leaving travelers feeling chilled to the bone even in short bursts outside.
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 | -7°C (20°F) | 41 mm (1.6 inches) | 89% | moderate |
| February Weather | -7°C (21°F) | 49 mm (1.9 inches) | 90% | moderate |
| March Weather | 1°C (33°F) | 61 mm (2.4 inches) | 87% | moderate |
| April Weather | 6°C (43°F) | 94 mm (3.7 inches) | 84% | high |
| May Weather | 14°C (58°F) | 104 mm (4.1 inches) | 77% | very high |
| June Weather | 20°C (69°F) | 101 mm (4.0 inches) | 75% | very high |
| July Weather | 23°C (74°F) | 102 mm (4.0 inches) | 74% | very high |
| August Weather | 21°C (71°F) | 105 mm (4.1 inches) | 73% | very high |
| September Weather | 17°C (64°F) | 74 mm (2.9 inches) | 78% | high |
| October Weather | 10°C (50°F) | 97 mm (3.8 inches) | 84% | moderate |
| November Weather | 2°C (36°F) | 50 mm (1.9 inches) | 89% | moderate |
| December Weather | -3°C (27°F) | 52 mm (2.1 inches) | 87% | low |