Last updated: June 18, 2025
In December, the average temperature in Carleton Place, Canada hovers around -5°C (23°F), with extreme fluctuations ranging from a chilly -29°C (-21°F) to a milder 15°C (59°F). Expect about 73 mm (2.9 in) of precipitation spread over 11 days, accompanied by a high average humidity of 89%. Prepare for a season that’s both frosty and damp!
In December in Carleton Place, the average temperature is -5°C (23°F). Maximum can reach 15°C (59°F), and minimum can be as low as -29°C (-21°F). Travelers should be prepared for a wide range of weather conditions, ranging from chilly winter temperatures to unexpectedly mild days.
In Carleton Place in December, the precipitation amount is 73 mm (2.9 in), spread over 11 days.
In Carleton Place in December, humidity is 89%. With an average temperature of -5°C (23°F), this humidity feels like a biting chill that seeps into your bones, making outdoor activities uncomfortable and prompting frequent breaks to warm up indoors.
In Carleton Place 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 Carleton Place, you can visit Hourly UV Index in Carleton Place.
UV Risk Categories
Weather in Carleton Place varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Carleton Place, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -8°C (17°F) | 70 mm (2.8 inches) | 93% | low |
| February Weather | -7°C (19°F) | 73 mm (2.9 inches) | 93% | moderate |
| March Weather | -2°C (28°F) | 77 mm (3.0 inches) | 86% | moderate |
| April Weather | 5°C (42°F) | 111 mm (4.4 inches) | 82% | very high |
| May Weather | 13°C (56°F) | 108 mm (4.2 inches) | 75% | very high |
| June Weather | 18°C (65°F) | 90 mm (3.5 inches) | 68% | very high |
| July Weather | 21°C (71°F) | 106 mm (4.2 inches) | 69% | very high |
| August Weather | 20°C (68°F) | 89 mm (3.5 inches) | 67% | very high |
| September Weather | 16°C (61°F) | 59 mm (2.3 inches) | 72% | high |
| October Weather | 9°C (49°F) | 125 mm (4.9 inches) | 83% | moderate |
| November Weather | 1°C (34°F) | 89 mm (3.5 inches) | 88% | moderate |
| December Weather | -5°C (23°F) | 73 mm (2.9 inches) | 89% | low |