Last updated: June 24, 2025
In East Troy, United States, the average temperature in December hovers around -1°C (31°F). Expect chilly days, with minimum temperatures dipping to an eye-watering -22°C (-8°F) and a potential maximum of 19°C (66°F). Be prepared for 49 mm (1.9 in) of precipitation over about 7 days, and don't forget that the average humidity is quite high at 81%. Stay warm and dry this season!
In December in East Troy, the average temperature is -1°C (31°F), with a maximum that can reach 19°C (66°F) and a minimum that can dip as low as -22°C (-8°F). Be prepared for a wide range of temperatures, ensuring you pack layers for your trip.
In East Troy in December, the precipitation amount is 49 mm (1.9 in) over the course of 7 days.
In East Troy in December humidity is 81%. With an average temperature of -1°C (31°F), this humidity feels like a heavy, cold mist that clings to your skin, making outdoor adventures damp and challenging.
In East Troy 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 East Troy, you can visit Hourly UV Index in East Troy.
UV Risk Categories
Weather in East Troy varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in East Troy, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (23°F) | 59 mm (2.3 inches) | 85% | moderate |
| February Weather | -4°C (24°F) | 55 mm (2.2 inches) | 85% | moderate |
| March Weather | 3°C (37°F) | 61 mm (2.4 inches) | 85% | high |
| April Weather | 8°C (46°F) | 111 mm (4.4 inches) | 85% | very high |
| May Weather | 15°C (59°F) | 141 mm (5.5 inches) | 78% | very high |
| June Weather | 21°C (70°F) | 112 mm (4.4 inches) | 80% | very high |
| July Weather | 24°C (75°F) | 88 mm (3.5 inches) | 78% | very high |
| August Weather | 22°C (72°F) | 86 mm (3.4 inches) | 76% | very high |
| September Weather | 19°C (66°F) | 101 mm (4.0 inches) | 79% | very high |
| October Weather | 11°C (52°F) | 114 mm (4.5 inches) | 83% | moderate |
| November Weather | 3°C (37°F) | 47 mm (1.9 inches) | 88% | moderate |
| December Weather | -1°C (31°F) | 49 mm (1.9 inches) | 81% | low |