Last updated: June 24, 2025
In December, the average temperature in Pittsford, United States hovers around -3°C (26°F), with extremes ranging from a chilling -28°C (-19°F) to a mild 14°C (58°F). Expect 89 mm (3.5 in) of precipitation over 12 days, paired with a high average humidity of 84%. Stay warm and prepared for the wet weather!
In December in Pittsford, the average temperature is -3°C (26°F). The maximum can reach 14°C (58°F), while the minimum can drop as low as -28°C (-19°F). Be prepared for a wide temperature range if you plan to travel during this month.
In Pittsford in December, the precipitation amount is 89 mm (3.5 in) during 12 days of rainfall.
In Pittsford in December, humidity is 84%. With an average temperature of -3°C (26°F), this humidity feels like an icy mist clinging to your skin, making every breath a struggle as the cold seeps in, creating a challenging environment for traveling.
In Pittsford 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 Pittsford, you can visit Hourly UV Index in Pittsford.
UV Risk Categories
Weather in Pittsford varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Pittsford, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (21°F) | 79 mm (3.1 inches) | 89% | moderate |
| February Weather | -5°C (24°F) | 84 mm (3.3 inches) | 88% | moderate |
| March Weather | -1°C (31°F) | 77 mm (3.0 inches) | 86% | moderate |
| April Weather | 6°C (44°F) | 120 mm (4.7 inches) | 84% | very high |
| May Weather | 13°C (56°F) | 91 mm (3.6 inches) | 76% | very high |
| June Weather | 18°C (65°F) | 88 mm (3.5 inches) | 72% | very high |
| July Weather | 21°C (70°F) | 125 mm (4.9 inches) | 66% | very high |
| August Weather | 20°C (69°F) | 89 mm (3.5 inches) | 64% | very high |
| September Weather | 16°C (61°F) | 67 mm (2.7 inches) | 72% | high |
| October Weather | 10°C (50°F) | 140 mm (5.5 inches) | 81% | moderate |
| November Weather | 2°C (35°F) | 102 mm (4.0 inches) | 87% | moderate |
| December Weather | -3°C (26°F) | 89 mm (3.5 inches) | 84% | low |