Last updated: June 24, 2025
In December, the average temperature in Andover, United States hovers around -6°C (21°F), with the minimum dipping as low as -28°C (-17°F) and the maximum reaching up to 13°C (55°F). This chilly month brings 101 mm (4.0 in) of precipitation over approximately 11 days, complemented by a high average humidity of 85%.
In December in Andover, the average temperature is -6°C (21°F). The maximum can reach 13°C (55°F), while the minimum can drop as low as -28°C (-17°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack appropriate winter clothing for both mild and extreme cold conditions.
In Andover in December, the precipitation amount is 101 mm (4.0 in) spread over 11 days.
In Andover in December, humidity is 85%. With an average temperature of -6°C (21°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and forcing you to bundle up even more than usual as you navigate through frosty air.
In Andover 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 Andover, you can visit Hourly UV Index in Andover.
UV Risk Categories
Weather in Andover varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Andover, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -9°C (16°F) | 81 mm (3.2 inches) | 91% | low |
| February Weather | -7°C (19°F) | 83 mm (3.3 inches) | 89% | moderate |
| March Weather | -4°C (26°F) | 71 mm (2.8 inches) | 85% | high |
| April Weather | 3°C (38°F) | 113 mm (4.5 inches) | 84% | very high |
| May Weather | 10°C (50°F) | 84 mm (3.3 inches) | 78% | very high |
| June Weather | 16°C (61°F) | 88 mm (3.5 inches) | 72% | very high |
| July Weather | 19°C (67°F) | 115 mm (4.5 inches) | 75% | very high |
| August Weather | 18°C (65°F) | 94 mm (3.7 inches) | 74% | very high |
| September Weather | 14°C (58°F) | 63 mm (2.5 inches) | 77% | high |
| October Weather | 8°C (47°F) | 119 mm (4.7 inches) | 85% | moderate |
| November Weather | 0°C (32°F) | 101 mm (4.0 inches) | 86% | moderate |
| December Weather | -6°C (21°F) | 101 mm (4.0 inches) | 85% | low |