Last updated: June 24, 2025
In Rugby, United States, the average temperature in December hovers around -9°C (17°F), with extremes ranging from a bone-chilling -37°C (-34°F) to a mild 10°C (51°F). Expect 23 mm (0.9 in) of precipitation spread across approximately 6 days, accompanied by a high average humidity of 92%, creating a crisp atmosphere that defines this season.
In December in Rugby, the average temperature is -9°C (17°F), with a maximum reaching 10°C (51°F) and a minimum plummeting to -37°C (-34°F). Travelers should be prepared for extreme cold conditions and dress appropriately to enjoy their visit.
In Rugby in December, the precipitation amount is 23 mm (0.9 in) spread over 6 days.
In Rugby in December, humidity is 92%. With an average temperature of -9°C (17°F), this humidity feels like a biting chill that penetrates your layers, making outdoor activities uncomfortable and travel challenging as frost clings to your clothing and every breath turns to vapor.
In Rugby 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 Rugby, you can visit Hourly UV Index in Rugby.
UV Risk Categories
Weather in Rugby varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Rugby, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -12°C (10°F) | 14 mm (0.5 inches) | 89% | low |
| February Weather | -14°C (7°F) | 18 mm (0.7 inches) | 91% | moderate |
| March Weather | -4°C (25°F) | 24 mm (0.9 inches) | 87% | moderate |
| April Weather | 3°C (38°F) | 28 mm (1.1 inches) | 78% | very high |
| May Weather | 12°C (54°F) | 43 mm (1.7 inches) | 73% | very high |
| June Weather | 19°C (67°F) | 81 mm (3.2 inches) | 71% | very high |
| July Weather | 21°C (70°F) | 75 mm (2.9 inches) | 76% | very high |
| August Weather | 19°C (67°F) | 65 mm (2.6 inches) | 77% | very high |
| September Weather | 14°C (58°F) | 61 mm (2.4 inches) | 71% | high |
| October Weather | 5°C (42°F) | 53 mm (2.1 inches) | 75% | moderate |
| November Weather | -3°C (27°F) | 24 mm (0.9 inches) | 84% | low |
| December Weather | -9°C (17°F) | 23 mm (0.9 inches) | 92% | low |