Last updated: June 18, 2025
In December, the average temperature in Fredericton, Canada hovers around -5°C (24°F), with minimums dipping to -22°C (-8°F) and maximums reaching 15°C (60°F). Expect about 118 mm (4.6 in) of precipitation spread over 11 days, accompanied by a notable average humidity of 82%. Stay warm and prepared for the chilly weather!
In December in Fredericton, the average temperature is -5°C (24°F), with maximums reaching 15°C (60°F) and minimums plummeting to as low as -22°C (-8°F). It's essential to pack warm clothing and layers to stay comfortable while exploring the area during this chilly time of year.
In Fredericton in December, the precipitation amount is 118 mm (4.6 in) over the course of 11 days.
In Fredericton in December humidity is 82%. With an average temperature of -5°C (24°F), this humidity feels like an icy shroud enveloping you, making every breath a sharp reminder of the cold as moisture clings to your skin, potentially turning your travel experience into a balance between breathtaking winter scenery and the biting chill that is exacerbated by the dampness in the air.
In Fredericton 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 Fredericton, you can visit Hourly UV Index in Fredericton.
UV Risk Categories
Weather in Fredericton varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Fredericton, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -8°C (19°F) | 100 mm (4.0 inches) | 83% | low |
| February Weather | -7°C (20°F) | 91 mm (3.6 inches) | 84% | moderate |
| March Weather | -2°C (28°F) | 83 mm (3.3 inches) | 82% | moderate |
| April Weather | 5°C (41°F) | 113 mm (4.5 inches) | 80% | high |
| May Weather | 11°C (52°F) | 116 mm (4.6 inches) | 78% | very high |
| June Weather | 17°C (62°F) | 101 mm (4.0 inches) | 82% | very high |
| July Weather | 20°C (68°F) | 103 mm (4.0 inches) | 84% | very high |
| August Weather | 19°C (67°F) | 90 mm (3.5 inches) | 82% | very high |
| September Weather | 15°C (59°F) | 98 mm (3.9 inches) | 82% | high |
| October Weather | 9°C (48°F) | 102 mm (4.0 inches) | 82% | moderate |
| November Weather | 1°C (35°F) | 136 mm (5.3 inches) | 84% | moderate |
| December Weather | -5°C (24°F) | 118 mm (4.6 inches) | 82% | low |