Last updated: June 24, 2025
In Newbury, United States, the average temperature in December hovers around -3°C (27°F). Expect temperatures to range from a chilly -24°C (-10°F) at the lowest to a mild 15°C (60°F) at the highest. During this month, precipitation typically totals 114 mm (4.5 in), spread over 9 days. With an average humidity of 81%, be prepared for a brisk and damp atmosphere!
In December in Newbury, the average temperature is -3°C (27°F), with maximums reaching 15°C (60°F) and minimums plummeting to as low as -24°C (-10°F). Travelers should come prepared for a wide range of temperatures and be ready for cold weather during their visit.
In Newbury in December, the precipitation amount is 114 mm (4.5 in) over the course of 9 days.
In Newbury in December humidity is 81%. With an average temperature of -3°C (27°F), this humidity feels like a biting chill that seeps into your bones, making traveling uncomfortable and forcing you to bundle up tightly to fend off the cold dampness.
In Newbury 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 Newbury, you can visit Hourly UV Index in Newbury.
UV Risk Categories
Weather in Newbury varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Newbury, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (23°F) | 71 mm (2.8 inches) | 86% | moderate |
| February Weather | -3°C (26°F) | 85 mm (3.3 inches) | 84% | moderate |
| March Weather | 0°C (32°F) | 78 mm (3.1 inches) | 82% | high |
| April Weather | 7°C (44°F) | 126 mm (5.0 inches) | 80% | very high |
| May Weather | 13°C (56°F) | 83 mm (3.3 inches) | 72% | very high |
| June Weather | 19°C (66°F) | 90 mm (3.5 inches) | 72% | very high |
| July Weather | 22°C (72°F) | 129 mm (5.1 inches) | 67% | very high |
| August Weather | 21°C (70°F) | 94 mm (3.7 inches) | 66% | very high |
| September Weather | 17°C (63°F) | 78 mm (3.1 inches) | 71% | high |
| October Weather | 10°C (51°F) | 132 mm (5.2 inches) | 78% | high |
| November Weather | 3°C (37°F) | 105 mm (4.1 inches) | 84% | moderate |
| December Weather | -3°C (27°F) | 114 mm (4.5 inches) | 81% | low |