Last updated: June 24, 2025
In Millersburg, United States, the average temperature in December hovers around 5°C (41°F). You can expect a minimum chill of -12°C (10°F) and a pleasant maximum of 21°C (70°F). During this month, approximately 127 mm (5.0 in) of precipitation falls over 10 days, contributing to an average humidity level of 87%. Prepare for a mix of cool weather and moisture as you navigate through this period!
In December in Millersburg, the average temperature is 5°C (41°F). Maximum can reach 21°C (70°F) and minimum can be as low as -12°C (10°F). Travelers should be prepared for a wide range of temperatures, from chilly days to surprisingly warm afternoons.
In Millersburg in December, the precipitation amount is 127 mm (5.0 in), spread over a period of 10 days.
In Millersburg in December humidity is 87%. With an average temperature of 5°C (41°F), this humidity feels like a heavy, damp blanket enveloping you, making every step seem laborious and the chill more biting, which can be quite challenging for traveling.
In Millersburg 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 Millersburg, you can check the information here.
UV Risk Categories
Weather in Millersburg varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Millersburg, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (36°F) | 97 mm (3.8 inches) | 88% | moderate |
| February Weather | 4°C (40°F) | 134 mm (5.3 inches) | 88% | moderate |
| March Weather | 8°C (47°F) | 131 mm (5.2 inches) | 87% | high |
| April Weather | 13°C (55°F) | 139 mm (5.5 inches) | 85% | very high |
| May Weather | 19°C (67°F) | 126 mm (5.0 inches) | 81% | very high |
| June Weather | 23°C (73°F) | 179 mm (7.0 inches) | 82% | very high |
| July Weather | 25°C (78°F) | 101 mm (4.0 inches) | 81% | very high |
| August Weather | 24°C (76°F) | 100 mm (3.9 inches) | 73% | very high |
| September Weather | 21°C (71°F) | 123 mm (4.9 inches) | 73% | very high |
| October Weather | 15°C (60°F) | 109 mm (4.3 inches) | 78% | high |
| November Weather | 7°C (45°F) | 86 mm (3.4 inches) | 89% | moderate |
| December Weather | 5°C (41°F) | 127 mm (5.0 inches) | 87% | moderate |