Last updated: June 24, 2025
In Lynn, United States, the average temperature in December hovers around 2°C (36°F). Expect a minimum of -19°C (-3°F) and a maximum of 17°C (63°F), showcasing the weather's varied nature. During this month, the area receives about 81 mm (3.2 in) of precipitation over approximately 10 days, accompanied by a high average humidity of 87%.
In December in Lynn, the average temperature is 2°C (36°F). The maximum can reach 17°C (63°F), and the minimum can be as low as -19°C (-3°F). It's advisable to dress in layers and be prepared for a wide range of temperatures when traveling during this time.
In Lynn in December, the precipitation amount is 81 mm (3.2 in) over a span of 10 days.
In Lynn in December, humidity is 87%. With an average temperature of 2°C (36°F), this humidity feels like an unwelcome chill that seeps into your bones, making outdoor exploration feel damp and heavy, and encouraging travelers to seek the warmth of indoor attractions instead.
In Lynn in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Lynn, you can check the information here.
UV Risk Categories
Weather in Lynn varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Lynn, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (30°F) | 76 mm (3.0 inches) | 87% | moderate |
| February Weather | 0°C (33°F) | 97 mm (3.8 inches) | 85% | moderate |
| March Weather | 5°C (42°F) | 116 mm (4.6 inches) | 86% | high |
| April Weather | 11°C (51°F) | 102 mm (4.0 inches) | 84% | very high |
| May Weather | 17°C (63°F) | 142 mm (5.6 inches) | 79% | very high |
| June Weather | 22°C (72°F) | 125 mm (4.9 inches) | 82% | extreme |
| July Weather | 24°C (76°F) | 109 mm (4.3 inches) | 79% | very high |
| August Weather | 23°C (73°F) | 95 mm (3.7 inches) | 70% | very high |
| September Weather | 20°C (69°F) | 91 mm (3.6 inches) | 69% | very high |
| October Weather | 14°C (57°F) | 98 mm (3.9 inches) | 76% | high |
| November Weather | 5°C (41°F) | 91 mm (3.6 inches) | 88% | moderate |
| December Weather | 2°C (36°F) | 81 mm (3.2 inches) | 87% | moderate |