Last updated: June 24, 2025
In December, the average temperature in Guilford, United States hovers around 3°C (37°F). Expect chilly nights with a minimum temperature that can plummet to -13°C (9°F), while daytime highs may reach up to 18°C (64°F). Be prepared for some wet weather, as 92 mm (3.6 in) of precipitation typically falls over 9 days. The air is quite humid too, with an average humidity level of 85%.
In December in Guilford, the average temperature is 3°C (37°F). Maximum temperatures can reach 18°C (64°F), while minimums can drop as low as -13°C (9°F). Be prepared for a wide range of temperatures when traveling during this time.
In Guilford in December, the precipitation amount is 92 mm (3.6 in) during 9 days, indicating a relatively wet period for the region.
In Guilford in December, humidity is 85%. With an average temperature of 3°C (37°F), this humidity feels like a chilling blanket enveloping you, making traveling uncomfortable as your clothes cling to your skin and the cold air bites at your face.
In Guilford 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 Guilford, you can visit Hourly UV Index in Guilford.
UV Risk Categories
Weather in Guilford varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Guilford, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 0°C (33°F) | 63 mm (2.5 inches) | 86% | moderate |
| February Weather | 2°C (36°F) | 101 mm (4.0 inches) | 86% | moderate |
| March Weather | 6°C (42°F) | 93 mm (3.7 inches) | 86% | high |
| April Weather | 11°C (53°F) | 106 mm (4.2 inches) | 84% | very high |
| May Weather | 17°C (63°F) | 124 mm (4.9 inches) | 78% | very high |
| June Weather | 22°C (72°F) | 95 mm (3.7 inches) | 79% | very high |
| July Weather | 25°C (77°F) | 136 mm (5.4 inches) | 70% | very high |
| August Weather | 24°C (75°F) | 100 mm (3.9 inches) | 59% | very high |
| September Weather | 20°C (69°F) | 126 mm (5.0 inches) | 68% | very high |
| October Weather | 14°C (58°F) | 107 mm (4.2 inches) | 80% | high |
| November Weather | 6°C (43°F) | 84 mm (3.3 inches) | 86% | moderate |
| December Weather | 3°C (37°F) | 92 mm (3.6 inches) | 85% | low |