Last updated: June 24, 2025
In December, the average temperature in Unionville, United States hovers around 1°C (34°F). Expect a chilly range where the minimum can dip to -25°C (-13°F) and the maximum can reach up to 23°C (73°F). This month also sees an average precipitation of 35 mm (1.4 in) spread over 5 days, coupled with a notable humidity level of 83%. Stay prepared for a variety of weather conditions!
In December in Unionville, the average temperature is 1°C (34°F). Maximums can reach 23°C (73°F), and minimums can be as low as -25°C (-13°F). It's essential to be prepared for a wide range of temperatures when traveling during this time.
In Unionville in December, the precipitation amount is 35 mm (1.4 in) over a span of 5 days.
In Unionville in December, humidity is 83%. With an average temperature of 1°C (34°F), this humidity feels like a chilling embrace, making travel uncomfortable as the damp cold seeps into your bones, adding an extra layer of heaviness to the air that can leave you feeling sluggish and fatigued.
In Unionville 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 Unionville, you can check the information here.
UV Risk Categories
Weather in Unionville varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Unionville, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | -4°C (26°F) | 51 mm (2.0 inches) | 78% | moderate |
February Weather | -2°C (28°F) | 50 mm (2.0 inches) | 80% | moderate |
March Weather | 6°C (42°F) | 101 mm (4.0 inches) | 77% | high |
April Weather | 10°C (51°F) | 82 mm (3.2 inches) | 77% | very high |
May Weather | 18°C (64°F) | 155 mm (6.1 inches) | 77% | very high |
June Weather | 24°C (76°F) | 120 mm (4.7 inches) | 81% | extreme |
July Weather | 26°C (79°F) | 96 mm (3.8 inches) | 81% | extreme |
August Weather | 24°C (75°F) | 83 mm (3.3 inches) | 77% | very high |
September Weather | 21°C (70°F) | 120 mm (4.7 inches) | 73% | very high |
October Weather | 12°C (54°F) | 129 mm (5.1 inches) | 75% | high |
November Weather | 5°C (40°F) | 52 mm (2.0 inches) | 85% | moderate |
December Weather | 1°C (34°F) | 35 mm (1.4 inches) | 83% | moderate |