Last updated: June 24, 2025
In December, the average temperature in Hanover, United States hovers around 3°C (37°F), with a minimum dipping to -15°C (5°F) and a maximum rising to 18°C (65°F). Prepare for a wet month, as 105 mm (4.1 in) of precipitation typically falls over 11 days. Don't forget your umbrella and a warm jacket, as the average humidity remains high at 86%!
In December in Hanover, the average temperature is 3°C (37°F), with maximums reaching 18°C (65°F) and minimums plummeting to as low as -15°C (5°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack both warm clothing for the coldest days and lighter layers for milder afternoons.
In Hanover in December, the precipitation amount is 105 mm (4.1 in) over the course of 11 days.
In Hanover in December humidity is 86%. With an average temperature of 3°C (37°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and travel less enjoyable.
In Hanover 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 Hanover, you can check the information here.
UV Risk Categories
Weather in Hanover varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Hanover, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 0°C (32°F) | 88 mm (3.5 inches) | 88% | moderate |
| February Weather | 2°C (35°F) | 112 mm (4.4 inches) | 88% | moderate |
| March Weather | 6°C (43°F) | 114 mm (4.5 inches) | 88% | high |
| April Weather | 11°C (52°F) | 129 mm (5.1 inches) | 86% | very high |
| May Weather | 17°C (64°F) | 133 mm (5.3 inches) | 82% | very high |
| June Weather | 22°C (72°F) | 157 mm (6.2 inches) | 84% | very high |
| July Weather | 24°C (76°F) | 122 mm (4.8 inches) | 82% | very high |
| August Weather | 23°C (74°F) | 98 mm (3.8 inches) | 73% | very high |
| September Weather | 20°C (69°F) | 101 mm (4.0 inches) | 73% | very high |
| October Weather | 14°C (58°F) | 103 mm (4.1 inches) | 81% | high |
| November Weather | 6°C (42°F) | 99 mm (3.9 inches) | 89% | moderate |
| December Weather | 3°C (37°F) | 105 mm (4.1 inches) | 86% | moderate |