Last updated: June 24, 2025
In December, the average temperature in Owatonna, United States hovers around -4°C (25°F), making it a chilly time of year. Temperatures can range dramatically, with minimums dipping as low as -25°C (-12°F) and maximums peaking at 18°C (65°F). You can expect about 44 mm (1.7 in) of precipitation over 6 days, while the air remains quite humid with an average humidity level of 83%.
In December in Owatonna, the average temperature is -4°C (25°F). Maximums can reach 18°C (65°F) and minimums can be as low as -25°C (-12°F). Travelers should be prepared for a wide range of temperatures, from chilly days to unseasonably warm spells.
In Owatonna in December, the total precipitation amount is 44 mm (1.7 in) spread over 6 days.
In Owatonna in December, humidity is 83%. With an average temperature of -4°C (25°F), this humidity feels like a chilling fog enveloping you, making every breath feel heavy and damp, which can quickly dampen the spirit of travel as you navigate the frosty landscape.
In Owatonna 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 Owatonna, you can check the information here.
UV Risk Categories
Weather in Owatonna varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Owatonna, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -9°C (17°F) | 35 mm (1.4 inches) | 82% | moderate |
| February Weather | -9°C (16°F) | 43 mm (1.7 inches) | 84% | moderate |
| March Weather | 1°C (33°F) | 66 mm (2.6 inches) | 80% | moderate |
| April Weather | 6°C (44°F) | 92 mm (3.6 inches) | 81% | very high |
| May Weather | 15°C (59°F) | 140 mm (5.5 inches) | 74% | very high |
| June Weather | 22°C (71°F) | 123 mm (4.9 inches) | 80% | very high |
| July Weather | 23°C (74°F) | 104 mm (4.1 inches) | 80% | very high |
| August Weather | 21°C (70°F) | 122 mm (4.8 inches) | 77% | very high |
| September Weather | 18°C (64°F) | 133 mm (5.2 inches) | 75% | very high |
| October Weather | 9°C (49°F) | 97 mm (3.8 inches) | 80% | moderate |
| November Weather | 1°C (34°F) | 41 mm (1.6 inches) | 87% | moderate |
| December Weather | -4°C (25°F) | 44 mm (1.7 inches) | 83% | moderate |