Last updated: June 24, 2025
In Brook, United States, the average temperature in December hovers around 1°C (35°F). Expect a chilly range where the minimum plunges to -24°C (-11°F) and the maximum reaches a mild 18°C (64°F). This month brings 60 mm (2.3 in) of precipitation spread over 9 days, coupled with an average humidity of 86%, making it a perfect time for cozy indoor activities. Stay warm!
In December in Brook, the average temperature is 1°C (35°F). Maximums can reach 18°C (64°F), while minimums can drop as low as -24°C (-11°F). Travelers should be prepared for a wide range of temperatures, from chilly to mild, so layering is essential.
In Brook in December, the total precipitation amount is 60 mm (2.3 in), occurring over the course of 9 days.
In Brook in December, humidity is 86%. With an average temperature of 1°C (35°F), this humidity feels like a biting chill that wraps around you, making outdoor exploration uncomfortable and requiring extra layers to stay warm while navigating the damp air.
In Brook 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 Brook, you can visit Hourly UV Index in Brook.
UV Risk Categories
Weather in Brook varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Brook, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (28°F) | 73 mm (2.9 inches) | 85% | moderate |
| February Weather | -1°C (30°F) | 75 mm (3.0 inches) | 85% | moderate |
| March Weather | 5°C (42°F) | 104 mm (4.1 inches) | 86% | high |
| April Weather | 10°C (51°F) | 106 mm (4.2 inches) | 87% | very high |
| May Weather | 17°C (64°F) | 156 mm (6.1 inches) | 81% | very high |
| June Weather | 23°C (74°F) | 109 mm (4.3 inches) | 82% | very high |
| July Weather | 25°C (76°F) | 105 mm (4.2 inches) | 81% | very high |
| August Weather | 23°C (74°F) | 108 mm (4.2 inches) | 79% | very high |
| September Weather | 21°C (69°F) | 68 mm (2.7 inches) | 78% | very high |
| October Weather | 14°C (57°F) | 122 mm (4.8 inches) | 81% | high |
| November Weather | 5°C (41°F) | 73 mm (2.9 inches) | 89% | moderate |
| December Weather | 1°C (35°F) | 60 mm (2.3 inches) | 86% | low |