Last updated: June 24, 2025
In Thoreau, United States, the average temperature for December hovers around 0°C (31°F). During this time, you can expect minimum temperatures to dip as low as -18°C (0°F), while the mercury may rise to a comfortable 15°C (59°F). Prepare for possible precipitation of about 26 mm (1.0 in) spread over 5 days, and keep in mind the average humidity is quite high at 82%.
In December in Thoreau, the average temperature is 0°C (31°F). Maximums can reach 15°C (59°F), and minimums can drop as low as -18°C (0°F). Travelers should be prepared for a wide range of temperatures and pack accordingly to ensure a comfortable experience.
In Thoreau in December, the precipitation amount is 26 mm (1.0 in) over the course of 5 days.
In Thoreau in December humidity is 82%. With an average temperature of 0°C (31°F), this humidity feels like an icy blanket enveloping you, making travel quite uncomfortable as the cold moisture seeps into your clothes, chilling you to the bone and creating a stark contrast between the numbing temperature and the dampness in the air.
In Thoreau in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Thoreau for better planning.
UV Risk Categories
Weather in Thoreau varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Thoreau, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (30°F) | 28 mm (1.1 inches) | 81% | moderate |
| February Weather | 0°C (33°F) | 32 mm (1.3 inches) | 83% | high |
| March Weather | 5°C (41°F) | 36 mm (1.4 inches) | 71% | very high |
| April Weather | 10°C (50°F) | 23 mm (0.9 inches) | 61% | extreme |
| May Weather | 15°C (59°F) | 22 mm (0.9 inches) | 48% | extreme |
| June Weather | 21°C (71°F) | 13 mm (0.5 inches) | 36% | extreme |
| July Weather | 22°C (72°F) | 88 mm (3.5 inches) | 37% | extreme |
| August Weather | 21°C (70°F) | 33 mm (1.3 inches) | 46% | extreme |
| September Weather | 18°C (64°F) | 37 mm (1.4 inches) | 62% | extreme |
| October Weather | 11°C (52°F) | 28 mm (1.1 inches) | 74% | very high |
| November Weather | 5°C (42°F) | 15 mm (0.6 inches) | 82% | high |
| December Weather | 0°C (31°F) | 26 mm (1.0 inches) | 82% | moderate |