Last updated: June 24, 2025
In Rittman, United States, the average temperature in December hovers around 2°C (35°F). Expect a chilling minimum of -18°C (0°F), while the warmth can peak at a pleasant 18°C (64°F). Over the month, anticipate about 90 mm (3.5 in) of precipitation spread across 12 days and enjoy a high average humidity of 86% that adds to the unique atmosphere of this locale.
In December in Rittman, the average temperature is 2°C (35°F). Maximum temperatures can reach 18°C (64°F), while the minimum can drop as low as -18°C (0°F). This variation makes it essential for travelers to prepare for both chilly and mild weather conditions.
In Rittman in December, the precipitation amount is 90 mm (3.5 in) spread over 12 days.
In Rittman in December humidity is 86%. With an average temperature of 2°C (35°F), this humidity feels like a damp chill that seeps into your bones, making traveling quite uncomfortable as your clothes cling to you and the cold air cuts through any warmth you try to find.
In Rittman 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 Rittman, you can visit Hourly UV Index in Rittman.
UV Risk Categories
Weather in Rittman varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Rittman, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (30°F) | 82 mm (3.2 inches) | 88% | moderate |
| February Weather | 0°C (33°F) | 96 mm (3.8 inches) | 88% | moderate |
| March Weather | 4°C (40°F) | 99 mm (3.9 inches) | 87% | high |
| April Weather | 10°C (50°F) | 128 mm (5.0 inches) | 87% | very high |
| May Weather | 17°C (62°F) | 121 mm (4.8 inches) | 81% | very high |
| June Weather | 21°C (71°F) | 138 mm (5.4 inches) | 83% | very high |
| July Weather | 24°C (75°F) | 128 mm (5.0 inches) | 82% | very high |
| August Weather | 22°C (72°F) | 99 mm (3.9 inches) | 76% | very high |
| September Weather | 20°C (68°F) | 96 mm (3.8 inches) | 77% | very high |
| October Weather | 14°C (57°F) | 107 mm (4.2 inches) | 82% | high |
| November Weather | 5°C (41°F) | 93 mm (3.7 inches) | 89% | moderate |
| December Weather | 2°C (35°F) | 90 mm (3.5 inches) | 86% | low |