Last updated: June 24, 2025
In December, the average temperature in Rapid Valley, United States hovers around -1°C (30°F), with potential extremes ranging from a chilling -23°C (-10°F) to a surprisingly warm 21°C (70°F). During this month, you can expect approximately 28 mm (1.1 in) of precipitation over 6 days, contributing to an average humidity level of 75%.
In December in Rapid Valley, the average temperature is -1°C (30°F). Maximum temperatures can reach 21°C (70°F), while minimums can plummet to as low as -23°C (-10°F). Be prepared for a wide range of temperatures if you're traveling during this time!
In Rapid Valley in December, the precipitation amount is 28 mm (1.1 in) over the course of 6 days.
In Rapid Valley in December, humidity is 75%. With an average temperature of -1°C (30°F), this humidity feels like a biting chill that cuts through layers of clothing, making outdoor exploration quite uncomfortable and prompting the need for warm, breathable gear to maintain some level of comfort while traveling.
In Rapid Valley 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 Rapid Valley, you can visit Hourly UV Index in Rapid Valley.
UV Risk Categories
Weather in Rapid Valley varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Rapid Valley, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (27°F) | 14 mm (0.5 inches) | 73% | moderate |
| February Weather | -6°C (22°F) | 27 mm (1.1 inches) | 78% | moderate |
| March Weather | 2°C (36°F) | 44 mm (1.7 inches) | 64% | high |
| April Weather | 5°C (41°F) | 73 mm (2.9 inches) | 66% | very high |
| May Weather | 11°C (53°F) | 112 mm (4.4 inches) | 74% | very high |
| June Weather | 19°C (67°F) | 72 mm (2.8 inches) | 84% | extreme |
| July Weather | 22°C (72°F) | 96 mm (3.8 inches) | 85% | extreme |
| August Weather | 20°C (69°F) | 57 mm (2.2 inches) | 85% | very high |
| September Weather | 16°C (62°F) | 43 mm (1.7 inches) | 76% | very high |
| October Weather | 7°C (45°F) | 52 mm (2.0 inches) | 71% | moderate |
| November Weather | 3°C (37°F) | 17 mm (0.7 inches) | 73% | moderate |
| December Weather | -1°C (30°F) | 28 mm (1.1 inches) | 75% | low |