Last updated: June 24, 2025
In Ansonia, United States, the average temperature in December hovers around 2°C (35°F), making it a brisk time of year. Temperatures can dip as low as -21°C (-5°F) or climb to a mild 17°C (64°F). The month typically brings 74 mm (2.9 in) of precipitation over 10 days, contributing to an average humidity level of 86%. Embrace the chill while staying prepared for the dampness!
In December in Ansonia, the average temperature is 2°C (35°F). Maximums can reach 17°C (64°F) and minimums can be as low as -21°C (-5°F). This climate offers a unique experience for travelers seeking to enjoy both chilly landscapes and the occasional mild day.
In Ansonia in December, the precipitation amount is 74 mm (2.9 in) spread over a period of 10 days.
In Ansonia in December humidity is 86%. With an average temperature of 2°C (35°F), this humidity feels like a damp chill that seeps into your bones, making traveling quite uncomfortable as your clothes cling to you and the cold air cuts through any warmth you try to find.
In Ansonia 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 Ansonia, you can visit Hourly UV Index in Ansonia.
UV Risk Categories
Weather in Ansonia varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Ansonia, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (30°F) | 74 mm (2.9 inches) | 88% | moderate |
| February Weather | 0°C (33°F) | 96 mm (3.8 inches) | 87% | moderate |
| March Weather | 5°C (42°F) | 107 mm (4.2 inches) | 87% | high |
| April Weather | 11°C (51°F) | 99 mm (3.9 inches) | 87% | very high |
| May Weather | 17°C (63°F) | 138 mm (5.4 inches) | 81% | very high |
| June Weather | 22°C (72°F) | 127 mm (5.0 inches) | 82% | very high |
| July Weather | 24°C (76°F) | 110 mm (4.3 inches) | 81% | very high |
| August Weather | 23°C (73°F) | 107 mm (4.2 inches) | 78% | very high |
| September Weather | 20°C (69°F) | 81 mm (3.2 inches) | 78% | very high |
| October Weather | 14°C (57°F) | 99 mm (3.9 inches) | 82% | high |
| November Weather | 5°C (41°F) | 88 mm (3.5 inches) | 89% | moderate |
| December Weather | 2°C (35°F) | 74 mm (2.9 inches) | 86% | low |