Last updated: June 24, 2025
In December, the average temperature in New Athens, United States hovers around 5°C (40°F). Expect temperature fluctuations, with minimums dipping to -15°C (5°F) and maximums reaching up to 24°C (76°F). During this period, precipitation averages 71 mm (2.8 in) across about 7 days, contributing to a notably high average humidity of 86%.
In December in New Athens, the average temperature is 5°C (40°F). Maximums can reach 24°C (76°F) and minimums can be as low as -15°C (5°F). Travelers should be prepared for a wide range of temperatures, from chilly to pleasantly warm, making it essential to pack layers for any outdoor activities.
In New Athens in December, the precipitation amount is 71 mm (2.8 in) over a span of 7 days.
In New Athens in December humidity is 86%. With an average temperature of 5°C (40°F), this humidity feels like wrapping yourself in a damp blanket—uncomfortably heavy and chilly, making it difficult to enjoy outdoor activities without the constant chill seeping in.
In New Athens 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 New Athens, you can check the information here.
UV Risk Categories
Weather in New Athens varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in New Athens, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (34°F) | 81 mm (3.2 inches) | 82% | moderate |
| February Weather | 3°C (37°F) | 92 mm (3.6 inches) | 80% | moderate |
| March Weather | 9°C (48°F) | 136 mm (5.4 inches) | 80% | high |
| April Weather | 13°C (56°F) | 145 mm (5.7 inches) | 80% | very high |
| May Weather | 20°C (68°F) | 158 mm (6.2 inches) | 82% | very high |
| June Weather | 25°C (77°F) | 87 mm (3.4 inches) | 83% | extreme |
| July Weather | 27°C (80°F) | 89 mm (3.5 inches) | 81% | very high |
| August Weather | 25°C (77°F) | 114 mm (4.5 inches) | 80% | very high |
| September Weather | 23°C (73°F) | 60 mm (2.3 inches) | 76% | very high |
| October Weather | 16°C (60°F) | 112 mm (4.4 inches) | 76% | high |
| November Weather | 7°C (45°F) | 79 mm (3.1 inches) | 85% | moderate |
| December Weather | 5°C (40°F) | 71 mm (2.8 inches) | 86% | moderate |