Last updated: June 24, 2025
In Buffalo, United States, the average temperature in December hovers around -5°C (24°F), with a minimum of -23°C (-8°F) and a maximum of 16°C (62°F). Expect approximately 30 mm (1.2 in) of precipitation spread over 8 days, contributing to an average humidity of 81%. Stay warm and prepared for the chill!
In December in Buffalo, the average temperature is -5°C (24°F). Maximums can reach 16°C (62°F), while minimums can be as low as -23°C (-8°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack appropriately for both chilly days and unexpectedly warmer moments.
In Buffalo in December, the precipitation amount is 30 mm (1.2 in) over the course of 8 days.
In Buffalo in December humidity is 81%. With an average temperature of -5°C (24°F), this humidity feels like an icy blanket enveloping you, making breath visible in the air and every step crunch underfoot. The cold moisture adds a biting chill, turning even short excursions into a race to find warmth, while creating a mesmerizing frost on the landscape that can be both beautiful and unforgiving for travelers.
In Buffalo 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 Buffalo, you can visit Hourly UV Index in Buffalo.
UV Risk Categories
Weather in Buffalo varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Buffalo, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (22°F) | 24 mm (1.0 inches) | 78% | moderate |
| February Weather | -8°C (18°F) | 51 mm (2.0 inches) | 79% | moderate |
| March Weather | -1°C (31°F) | 66 mm (2.6 inches) | 71% | high |
| April Weather | 1°C (34°F) | 95 mm (3.7 inches) | 70% | very high |
| May Weather | 7°C (45°F) | 149 mm (5.9 inches) | 75% | very high |
| June Weather | 14°C (58°F) | 127 mm (5.0 inches) | 82% | extreme |
| July Weather | 18°C (65°F) | 140 mm (5.5 inches) | 84% | extreme |
| August Weather | 17°C (62°F) | 119 mm (4.7 inches) | 85% | very high |
| September Weather | 12°C (54°F) | 75 mm (3.0 inches) | 79% | very high |
| October Weather | 3°C (37°F) | 80 mm (3.2 inches) | 75% | high |
| November Weather | -2°C (29°F) | 44 mm (1.7 inches) | 75% | moderate |
| December Weather | -5°C (24°F) | 30 mm (1.2 inches) | 81% | low |