Last updated: June 24, 2025
In December, the average temperature in Irondequoit, United States hovers around 1°C (34°F), with lows reaching as frigid as -14°C (7°F) and highs peaking at 17°C (62°F). Expect 107 mm (4.2 in) of precipitation over approximately 19 days, contributing to a notably high average humidity of 87%. Prepare for a chilly, damp month!
In December in Irondequoit, the average temperature is 1°C (34°F), with a maximum that can reach 17°C (62°F) and a minimum that can drop as low as -14°C (7°F). Be prepared for a wide range of temperatures when traveling during this time, and pack accordingly for both cold and warmer conditions.
In Irondequoit in December, the precipitation amount is 107 mm (4.2 in) over the course of 19 days.
In Irondequoit in December humidity is 87%. With an average temperature of 1°C (34°F), this humidity feels like a chilling blanket enveloping you, making every step outside feel heavy and damp, and leaving you longing for warmth and comfort while traveling.
In Irondequoit 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 Irondequoit, you can visit Hourly UV Index in Irondequoit.
UV Risk Categories
Weather in Irondequoit varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Irondequoit, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | -2°C (29°F) | 90 mm (3.6 inches) | 91% | low |
February Weather | -1°C (30°F) | 91 mm (3.6 inches) | 91% | moderate |
March Weather | 2°C (35°F) | 81 mm (3.2 inches) | 88% | moderate |
April Weather | 6°C (44°F) | 117 mm (4.6 inches) | 88% | very high |
May Weather | 12°C (54°F) | 100 mm (4.0 inches) | 82% | very high |
June Weather | 18°C (64°F) | 74 mm (2.9 inches) | 79% | very high |
July Weather | 22°C (72°F) | 130 mm (5.1 inches) | 77% | very high |
August Weather | 22°C (72°F) | 90 mm (3.5 inches) | 72% | very high |
September Weather | 19°C (66°F) | 77 mm (3.0 inches) | 76% | high |
October Weather | 13°C (56°F) | 159 mm (6.3 inches) | 83% | moderate |
November Weather | 5°C (42°F) | 107 mm (4.2 inches) | 88% | moderate |
December Weather | 1°C (34°F) | 107 mm (4.2 inches) | 87% | low |