Last updated: June 24, 2025
In Valley Mills, United States, the average temperature in December hovers around 12°C (53°F), with a notable variability between a chilly minimum of -4°C (26°F) and a balmy maximum of 30°C (87°F). While you're likely to enjoy the warm days, be prepared for some rain, as 53 mm (2.1 in) of precipitation is expected over 6 days. Coupled with an average humidity of 87%, this month presents a unique blend of cool freshness and occasional warmth.
In December in Valley Mills, the average temperature is 12°C (53°F). The maximum can reach 30°C (87°F), while the minimum can be as low as -4°C (26°F). Be prepared for a wide range of temperatures when you travel!
In Valley Mills in December, the precipitation amount is 53 mm (2.1 in) over a span of 6 days.
In Valley Mills in December, humidity is 87%. With an average temperature of 12°C (53°F), this humidity feels like a damp blanket enveloping you, making travel uncomfortable and stifling, as the air thickens and clings to your skin, sapping your energy as you navigate the sights.
In Valley Mills in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Valley Mills for better planning.
UV Risk Categories
Weather in Valley Mills varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Valley Mills, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 9°C (49°F) | 54 mm (2.1 inches) | 78% | moderate |
| February Weather | 10°C (51°F) | 78 mm (3.1 inches) | 78% | high |
| March Weather | 17°C (62°F) | 81 mm (3.2 inches) | 77% | very high |
| April Weather | 19°C (67°F) | 92 mm (3.6 inches) | 78% | very high |
| May Weather | 24°C (75°F) | 181 mm (7.1 inches) | 82% | extreme |
| June Weather | 28°C (82°F) | 76 mm (3.0 inches) | 78% | extreme |
| July Weather | 30°C (86°F) | 52 mm (2.0 inches) | 69% | extreme |
| August Weather | 30°C (86°F) | 90 mm (3.6 inches) | 63% | extreme |
| September Weather | 27°C (80°F) | 87 mm (3.4 inches) | 66% | very high |
| October Weather | 21°C (69°F) | 134 mm (5.3 inches) | 73% | very high |
| November Weather | 14°C (58°F) | 44 mm (1.7 inches) | 84% | high |
| December Weather | 12°C (53°F) | 53 mm (2.1 inches) | 87% | moderate |