Last updated: June 24, 2025
In December, the average temperature in Olivia, United States hovers around -5°C (24°F), making it a chilly time of year. Expect minimum temperatures to plummet to -25°C (-13°F), while the mercury can rise to a pleasant 14°C (57°F) at best. During this month, precipitation is recorded at 38 mm (1.5 in) over 6 days, complemented by an average humidity level of 84%, creating an atmosphere that feels both crisp and damp.
In December in Olivia, the average temperature is -5°C (24°F). Maximums can reach 14°C (57°F) while minimums can drop to as low as -25°C (-13°F). Travelers should be prepared for a wide temperature range and pack accordingly.
In Olivia in December, the total precipitation amount is 38 mm (1.5 in) spread over 6 days.
In Olivia in December, humidity is 84%. With an average temperature of -5°C (24°F), this humidity feels like an icy blanket wrapped around you, making the air feel even colder and more biting, which can be quite uncomfortable for traveling.
In Olivia 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 Olivia, you can visit Hourly UV Index in Olivia.
UV Risk Categories
Weather in Olivia varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Olivia, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -9°C (16°F) | 21 mm (0.8 inches) | 85% | moderate |
| February Weather | -9°C (16°F) | 24 mm (0.9 inches) | 89% | moderate |
| March Weather | 0°C (32°F) | 57 mm (2.3 inches) | 81% | moderate |
| April Weather | 6°C (43°F) | 80 mm (3.1 inches) | 82% | high |
| May Weather | 15°C (59°F) | 111 mm (4.4 inches) | 76% | very high |
| June Weather | 22°C (72°F) | 94 mm (3.7 inches) | 81% | very high |
| July Weather | 23°C (74°F) | 110 mm (4.3 inches) | 82% | very high |
| August Weather | 21°C (70°F) | 141 mm (5.5 inches) | 83% | very high |
| September Weather | 18°C (64°F) | 112 mm (4.4 inches) | 82% | high |
| October Weather | 9°C (48°F) | 92 mm (3.6 inches) | 82% | moderate |
| November Weather | 1°C (33°F) | 27 mm (1.1 inches) | 87% | moderate |
| December Weather | -5°C (24°F) | 38 mm (1.5 inches) | 84% | low |