Last updated: June 24, 2025
In December, the average temperature in New Windsor, United States hovers around 0°C (33°F). Expect a wide range, with minimums dipping to -21°C (-6°F) and maximums reaching up to 21°C (71°F). During this month, you can anticipate about 50 mm (2.0 in) of precipitation over 6 days, accompanied by a high average humidity of 84%. Prepare for a mix of weather as you explore!
In December in New Windsor, the average temperature is 0°C (33°F). Maximum temperatures can reach 21°C (71°F), while minimums can drop as low as -21°C (-6°F). It's essential to prepare for a wide range of temperatures if you're planning to visit during this time.
In New Windsor in December, the precipitation amount is 50 mm (2.0 in) over the course of 6 days.
In New Windsor in December humidity is 84%. With average temperature 0°C (33°F), this humidity feels like a damp chill that seeps into your bones, making outdoor adventures less enjoyable and travel plans challenging.
In New Windsor 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 New Windsor, you can visit Hourly UV Index in New Windsor.
UV Risk Categories
Weather in New Windsor varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in New Windsor, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (25°F) | 56 mm (2.2 inches) | 81% | moderate |
| February Weather | -3°C (27°F) | 63 mm (2.5 inches) | 81% | moderate |
| March Weather | 5°C (41°F) | 98 mm (3.9 inches) | 81% | high |
| April Weather | 10°C (50°F) | 107 mm (4.2 inches) | 82% | very high |
| May Weather | 17°C (63°F) | 157 mm (6.2 inches) | 78% | very high |
| June Weather | 23°C (74°F) | 135 mm (5.3 inches) | 81% | extreme |
| July Weather | 25°C (77°F) | 95 mm (3.7 inches) | 79% | very high |
| August Weather | 23°C (74°F) | 65 mm (2.6 inches) | 77% | very high |
| September Weather | 20°C (69°F) | 102 mm (4.0 inches) | 78% | very high |
| October Weather | 12°C (55°F) | 128 mm (5.0 inches) | 78% | high |
| November Weather | 4°C (39°F) | 51 mm (2.0 inches) | 87% | moderate |
| December Weather | 0°C (33°F) | 50 mm (2.0 inches) | 84% | low |