Last updated: June 24, 2025
In December, the average temperature in Preston, United States hovers around 6°C (43°F). Expect a broad range, with minimums dipping to -9°C (17°F) and maximums reaching up to 19°C (66°F). With 100 mm (3.9 in) of precipitation spread over 10 days, it's wise to prepare for some wet weather. The air will feel quite humid, with an average humidity level of 84%.
In December in Preston, the average temperature is 6°C (43°F), with maximums reaching 19°C (66°F) and minimums dropping as low as -9°C (17°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack both warm clothing and lighter layers for fluctuating conditions.
In Preston in December, the precipitation amount is 100 mm (3.9 in) over a span of 10 days.
In Preston in December, humidity is 84%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that penetrates your clothing, making outdoor excursions uncomfortable and prompting travelers to seek refuge indoors or find warm, sheltered spots to enjoy their surroundings.
In Preston 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 Preston, you can check the information here.
UV Risk Categories
Weather in Preston varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Preston, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (38°F) | 65 mm (2.6 inches) | 84% | moderate |
| February Weather | 5°C (42°F) | 103 mm (4.1 inches) | 83% | moderate |
| March Weather | 8°C (47°F) | 89 mm (3.5 inches) | 83% | high |
| April Weather | 14°C (57°F) | 89 mm (3.5 inches) | 81% | very high |
| May Weather | 19°C (66°F) | 125 mm (4.9 inches) | 78% | very high |
| June Weather | 24°C (75°F) | 97 mm (3.8 inches) | 79% | very high |
| July Weather | 27°C (81°F) | 152 mm (6.0 inches) | 74% | very high |
| August Weather | 26°C (79°F) | 161 mm (6.3 inches) | 72% | very high |
| September Weather | 23°C (73°F) | 105 mm (4.1 inches) | 75% | very high |
| October Weather | 18°C (64°F) | 123 mm (4.8 inches) | 81% | high |
| November Weather | 10°C (50°F) | 82 mm (3.2 inches) | 85% | moderate |
| December Weather | 6°C (43°F) | 100 mm (3.9 inches) | 84% | moderate |