Last updated: June 24, 2025
In December, the average temperature in Dunellen, United States hovers around 3°C (38°F). Be prepared for a range of temperatures, with the minimum plunging to -13°C (10°F) and the maximum reaching up to 19°C (66°F). Expect about 106 mm (4.2 in) of precipitation spread over 10 days, and keep in mind that the average humidity is quite high at 80%, adding to the chilly atmosphere.
In December in Dunellen, the average temperature is 3°C (38°F). Maximums can reach 19°C (66°F), while minimums can drop as low as -13°C (10°F). Travelers should be prepared for a wide range of temperatures when visiting during this time.
In Dunellen in December, the precipitation amount is 106 mm (4.2 in) over a span of 10 days.
In Dunellen in December, humidity is 80%. With an average temperature of 3°C (38°F), this humidity feels like a chilly dampness that clings to your skin, making traveling uncomfortable and forcing you to bundle up just to step outside.
In Dunellen 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 Dunellen, you can visit Hourly UV Index in Dunellen.
UV Risk Categories
Weather in Dunellen varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Dunellen, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 1°C (34°F) | 65 mm (2.6 inches) | 84% | moderate |
February Weather | 3°C (37°F) | 107 mm (4.2 inches) | 82% | moderate |
March Weather | 6°C (43°F) | 107 mm (4.2 inches) | 81% | high |
April Weather | 11°C (53°F) | 110 mm (4.3 inches) | 78% | very high |
May Weather | 17°C (63°F) | 129 mm (5.1 inches) | 69% | very high |
June Weather | 22°C (72°F) | 102 mm (4.0 inches) | 69% | very high |
July Weather | 25°C (78°F) | 140 mm (5.5 inches) | 62% | very high |
August Weather | 24°C (76°F) | 133 mm (5.2 inches) | 65% | very high |
September Weather | 21°C (70°F) | 89 mm (3.5 inches) | 68% | very high |
October Weather | 16°C (60°F) | 136 mm (5.4 inches) | 74% | high |
November Weather | 8°C (46°F) | 82 mm (3.2 inches) | 82% | moderate |
December Weather | 3°C (38°F) | 106 mm (4.2 inches) | 80% | low |