Last updated: June 24, 2025
In Marrowstone, United States, the average temperature in December hovers around 6°C (43°F). Expect chilly conditions, with minimum temperatures dropping to a brisk -5°C (23°F) and highs reaching a mild 13°C (55°F). This month also sees considerable precipitation, averaging 187 mm (7.4 in) spread over 21 days, contributing to an average humidity of 87%. Be prepared for a damp and cool atmosphere!
In December in Marrowstone, the average temperature is 6°C (43°F). Maximum temperatures can reach up to 13°C (55°F), while minimums can drop as low as -5°C (23°F). This weather makes it essential to pack layers if you're planning to travel during this time.
In Marrowstone in December, the total precipitation amount is 187 mm (7.4 in) over the course of 21 days.
In Marrowstone in December, humidity is 87%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities uncomfortable and necessitating warm, breathable layers for traveling.
In Marrowstone 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 Marrowstone, you can visit Hourly UV Index in Marrowstone.
UV Risk Categories
Weather in Marrowstone varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Marrowstone, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 6°C (43°F) | 160 mm (6.3 inches) | 86% | low |
| February Weather | 5°C (41°F) | 157 mm (6.2 inches) | 84% | moderate |
| March Weather | 7°C (45°F) | 131 mm (5.1 inches) | 85% | moderate |
| April Weather | 9°C (49°F) | 124 mm (4.9 inches) | 83% | high |
| May Weather | 12°C (54°F) | 91 mm (3.6 inches) | 84% | very high |
| June Weather | 15°C (58°F) | 125 mm (4.9 inches) | 84% | very high |
| July Weather | 17°C (62°F) | 58 mm (2.3 inches) | 82% | very high |
| August Weather | 17°C (63°F) | 51 mm (2.0 inches) | 73% | very high |
| September Weather | 15°C (59°F) | 129 mm (5.1 inches) | 74% | high |
| October Weather | 11°C (52°F) | 155 mm (6.1 inches) | 83% | moderate |
| November Weather | 8°C (47°F) | 187 mm (7.4 inches) | 86% | low |
| December Weather | 6°C (43°F) | 187 mm (7.4 inches) | 87% | low |