Last updated: June 24, 2025
In December, the average temperature in Perryville, United States is a brisk 8°C (47°F). Expect minimum temperatures to dip as low as -8°C (17°F), while the mercury may rise to a pleasant 27°C (81°F). With an average precipitation of 110 mm (4.3 in) spread over 9 days, and a high humidity level of 87%, it's wise to be prepared for both wet weather and cool conditions during your visit.
In December in Perryville, the average temperature is 8°C (47°F). Maximums can reach 27°C (81°F), while minimums can drop to as low as -8°C (17°F). Be prepared for a wide range of temperatures when planning your travels.
In Perryville in December, the precipitation amount is 110 mm (4.3 in) over the course of 9 days.
In Perryville in December, humidity is 87%. With an average temperature of 8°C (47°F), this humidity feels like a damp chill that clings to your skin, making outdoor exploration uncomfortably muggy despite the cool air.
In Perryville in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Perryville for better planning.
UV Risk Categories
Weather in Perryville varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Perryville, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (42°F) | 83 mm (3.3 inches) | 82% | moderate |
| February Weather | 7°C (45°F) | 142 mm (5.6 inches) | 79% | high |
| March Weather | 13°C (55°F) | 150 mm (5.9 inches) | 77% | very high |
| April Weather | 16°C (61°F) | 162 mm (6.4 inches) | 78% | very high |
| May Weather | 22°C (71°F) | 180 mm (7.1 inches) | 82% | extreme |
| June Weather | 26°C (79°F) | 115 mm (4.5 inches) | 81% | extreme |
| July Weather | 28°C (82°F) | 101 mm (4.0 inches) | 75% | extreme |
| August Weather | 27°C (80°F) | 123 mm (4.9 inches) | 61% | very high |
| September Weather | 24°C (76°F) | 75 mm (2.9 inches) | 59% | very high |
| October Weather | 18°C (64°F) | 83 mm (3.3 inches) | 69% | high |
| November Weather | 11°C (51°F) | 78 mm (3.1 inches) | 82% | moderate |
| December Weather | 8°C (47°F) | 110 mm (4.3 inches) | 87% | moderate |