Last updated: June 24, 2025
In December, the average temperature in Mona, United States hovers around -4°C (25°F). However, don't be surprised by the extremes; temperatures can dip as low as -24°C (-11°F) or rise to a pleasant 14°C (57°F). With an average precipitation of 57 mm (2.2 in) over the course of 11 days, and humidity levels reaching 87%, prepare for a chilly and damp month ahead!
In December in Mona, the average temperature is -4°C (25°F). Maximum temperatures can reach 14°C (57°F), while minimums can dip as low as -24°C (-11°F). Travelers should be prepared for significant temperature fluctuations, ensuring they pack appropriately for cold conditions.
In Mona in December, the precipitation amount is 57 mm (2.2 in) spread over 11 days.
In Mona in December humidity is 87%. With an average temperature of -4°C (25°F), this humidity feels like a biting chill that clings to your skin, making every step outside feel like an endeavor as the cold damp air numbs your senses and weighs you down, creating an atmosphere that is both invigorating and challenging for traveling.
In Mona in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Mona for better planning.
UV Risk Categories
Weather in Mona varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Mona, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (23°F) | 61 mm (2.4 inches) | 87% | moderate |
| February Weather | -3°C (27°F) | 64 mm (2.5 inches) | 88% | high |
| March Weather | 1°C (35°F) | 67 mm (2.6 inches) | 77% | very high |
| April Weather | 6°C (43°F) | 56 mm (2.2 inches) | 69% | very high |
| May Weather | 12°C (54°F) | 51 mm (2.0 inches) | 54% | extreme |
| June Weather | 20°C (68°F) | 13 mm (0.5 inches) | 45% | extreme |
| July Weather | 24°C (76°F) | 14 mm (0.6 inches) | 37% | extreme |
| August Weather | 23°C (73°F) | 22 mm (0.9 inches) | 34% | extreme |
| September Weather | 17°C (64°F) | 23 mm (0.9 inches) | 47% | very high |
| October Weather | 8°C (46°F) | 43 mm (1.7 inches) | 67% | high |
| November Weather | 3°C (37°F) | 36 mm (1.4 inches) | 82% | moderate |
| December Weather | -4°C (25°F) | 57 mm (2.2 inches) | 87% | moderate |