Last updated: June 24, 2025
In December, the average temperature in Atlantic, United States hovers around -1°C (31°F). Be prepared for chilly days, as the minimum temperature can plummet to -23°C (-10°F), while the maximum can reach a surprisingly warm 21°C (71°F). Expect about 36 mm (1.4 in) of precipitation over 4 days, and a notable average humidity of 83% adds to the cool atmosphere.
In December in Atlantic, the average temperature is -1°C (31°F), with maximums reaching up to 21°C (71°F) and minimums dropping as low as -23°C (-10°F). Travelers should be prepared for a wide range of temperatures during this month, making it essential to pack accordingly for both warmth and cool conditions.
In Atlantic in December, the precipitation amount is 36 mm (1.4 in) over the course of 4 days.
In Atlantic in December humidity is 83%. With an average temperature of -1°C (31°F), this humidity feels like a heavy, icy blanket enveloping you, making each step outside feel like a struggle against the cold, damp air that clings to your skin, often leaving you wishing for warmth and refuge indoors.
In Atlantic 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 Atlantic, you can check the information here.
UV Risk Categories
Weather in Atlantic varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Atlantic, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (23°F) | 31 mm (1.2 inches) | 76% | moderate |
| February Weather | -4°C (24°F) | 35 mm (1.4 inches) | 80% | moderate |
| March Weather | 4°C (40°F) | 84 mm (3.3 inches) | 73% | high |
| April Weather | 9°C (49°F) | 57 mm (2.2 inches) | 74% | very high |
| May Weather | 16°C (62°F) | 156 mm (6.2 inches) | 78% | very high |
| June Weather | 24°C (75°F) | 101 mm (4.0 inches) | 82% | extreme |
| July Weather | 25°C (77°F) | 67 mm (2.6 inches) | 83% | very high |
| August Weather | 23°C (74°F) | 105 mm (4.1 inches) | 80% | very high |
| September Weather | 20°C (68°F) | 102 mm (4.0 inches) | 75% | very high |
| October Weather | 11°C (52°F) | 124 mm (4.9 inches) | 75% | high |
| November Weather | 4°C (39°F) | 34 mm (1.3 inches) | 82% | moderate |
| December Weather | -1°C (31°F) | 36 mm (1.4 inches) | 83% | moderate |