Last updated: June 24, 2025
The average temperature in Palmyra, United States during December hovers around -4°C (26°F), with a minimum plunge of -25°C (-14°F) and a maximum reaching up to 15°C (59°F). Rainfall is not uncommon, with an average precipitation amount of 113 mm (4.5 in) spread over 11 days. Coupled with an average humidity level of 84%, the climate can feel quite chilly and damp during this month.
In December in Palmyra, the average temperature is -4°C (26°F). The maximum can reach 15°C (59°F), and the minimum can be as low as -25°C (-14°F). Travelers should be prepared for a broad range of temperatures, from chilly evenings to mild days, making layers essential for comfort.
In Palmyra in December, the total precipitation amount is 113 mm (4.5 in), spread over a period of 11 days.
In Palmyra in December, humidity is 84%. With an average temperature of -4°C (26°F), this humidity feels like a biting cold that seeps through your layers, making outdoor activities brisk and invigorating but challenging for sustained exploration.
In Palmyra 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 Palmyra, you can visit Hourly UV Index in Palmyra.
UV Risk Categories
Weather in Palmyra varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Palmyra, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (21°F) | 86 mm (3.4 inches) | 88% | low |
| February Weather | -5°C (24°F) | 81 mm (3.2 inches) | 88% | moderate |
| March Weather | -1°C (31°F) | 71 mm (2.8 inches) | 85% | moderate |
| April Weather | 6°C (43°F) | 121 mm (4.8 inches) | 81% | high |
| May Weather | 12°C (54°F) | 91 mm (3.6 inches) | 76% | very high |
| June Weather | 18°C (64°F) | 75 mm (2.9 inches) | 74% | very high |
| July Weather | 21°C (70°F) | 103 mm (4.1 inches) | 74% | very high |
| August Weather | 20°C (69°F) | 73 mm (2.9 inches) | 74% | very high |
| September Weather | 16°C (62°F) | 70 mm (2.8 inches) | 77% | high |
| October Weather | 10°C (50°F) | 119 mm (4.7 inches) | 82% | moderate |
| November Weather | 2°C (36°F) | 111 mm (4.4 inches) | 85% | moderate |
| December Weather | -4°C (26°F) | 113 mm (4.5 inches) | 84% | low |