Last updated: June 24, 2025
In December, the average temperature in Crystal Lakes, United States hovers around 2°C (36°F), with potential extremes of -18°C (0°F) to 18°C (64°F). This month brings about 92 mm (3.6 in) of precipitation spread over approximately 10 days, contributing to an average humidity level of a crisp 87%. Brace yourself for a chilly yet atmospheric experience!
In December in Crystal Lakes, the average temperature is 2°C (36°F), with maximums reaching up to 18°C (64°F) and minimums dropping as low as -18°C (0°F). It’s advisable to prepare for a wide range of temperatures when traveling during this time.
In Crystal Lakes in December, the total precipitation amount is 92 mm (3.6 in), which falls over the course of 10 days.
In Crystal Lakes in December, humidity is 87%. With an average temperature of 2°C (36°F), this humidity feels like an unwelcome chill that seeps into your bones, making outdoor exploration feel damp and heavy, and encouraging travelers to seek the warmth of indoor attractions instead.
In Crystal Lakes in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Crystal Lakes, you can check the information here.
UV Risk Categories
Weather in Crystal Lakes varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Crystal Lakes, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (31°F) | 75 mm (3.0 inches) | 88% | moderate |
| February Weather | 1°C (34°F) | 103 mm (4.1 inches) | 88% | moderate |
| March Weather | 6°C (42°F) | 105 mm (4.1 inches) | 87% | high |
| April Weather | 11°C (52°F) | 100 mm (4.0 inches) | 85% | very high |
| May Weather | 18°C (64°F) | 125 mm (4.9 inches) | 81% | very high |
| June Weather | 22°C (72°F) | 122 mm (4.8 inches) | 82% | very high |
| July Weather | 24°C (76°F) | 96 mm (3.8 inches) | 81% | very high |
| August Weather | 23°C (74°F) | 87 mm (3.4 inches) | 73% | very high |
| September Weather | 21°C (69°F) | 86 mm (3.4 inches) | 73% | very high |
| October Weather | 14°C (58°F) | 99 mm (3.9 inches) | 78% | high |
| November Weather | 5°C (42°F) | 95 mm (3.7 inches) | 89% | moderate |
| December Weather | 2°C (36°F) | 92 mm (3.6 inches) | 87% | moderate |