Last updated: June 24, 2025
In December, the average temperature in Rose Valley, United States hovers around 4°C (39°F). You'll experience a chill, with minimum temperatures dipping as low as -13°C (10°F), while highs can reach up to 18°C (65°F). Expect 102 mm (4.0 in) of precipitation spread over 10 days, contributing to an average humidity level of 84%. Don't forget your umbrella and a warm coat!
In December in Rose Valley, the average temperature is 4°C (39°F). Maximums can reach 18°C (65°F) and minimums can be as low as -13°C (10°F). Be prepared for a wide range of temperatures, making packing layers essential for your trip.
In Rose Valley in December, the total precipitation amount is 102 mm (4.0 in) falling over the course of 10 days.
In Rose Valley in December, humidity is 84%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making outdoor excursions uncomfortable and demanding more layers than you anticipate while traveling.
In Rose 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 Rose Valley, you can visit Hourly UV Index in Rose Valley.
UV Risk Categories
Weather in Rose Valley varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Rose Valley, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 2°C (35°F) | 66 mm (2.6 inches) | 84% | moderate |
| February Weather | 3°C (38°F) | 108 mm (4.3 inches) | 83% | moderate |
| March Weather | 6°C (44°F) | 107 mm (4.2 inches) | 83% | high |
| April Weather | 12°C (54°F) | 108 mm (4.3 inches) | 81% | very high |
| May Weather | 18°C (64°F) | 139 mm (5.5 inches) | 78% | very high |
| June Weather | 23°C (73°F) | 115 mm (4.5 inches) | 79% | very high |
| July Weather | 26°C (78°F) | 144 mm (5.7 inches) | 74% | very high |
| August Weather | 24°C (76°F) | 152 mm (6.0 inches) | 72% | very high |
| September Weather | 21°C (70°F) | 103 mm (4.0 inches) | 75% | very high |
| October Weather | 16°C (61°F) | 104 mm (4.1 inches) | 81% | high |
| November Weather | 8°C (46°F) | 84 mm (3.3 inches) | 85% | moderate |
| December Weather | 4°C (39°F) | 102 mm (4.0 inches) | 84% | low |