Last updated: June 24, 2025
In December, the average temperature in Forest, United States hovers around 11°C (52°F), making it a mild month overall. However, temperatures can swing dramatically, with minimums dipping to -6°C (22°F) and soaring to a maximum of 27°C (80°F). Expect about 124 mm (4.9 in) of precipitation over approximately 12 days, contributing to a notably high average humidity of 88%—perfect for those who enjoy a lush atmosphere!
In December in Forest, the average temperature is 11°C (52°F). The maximum can reach 27°C (80°F), while the minimum can drop as low as -6°C (22°F). This variation in temperatures suggests that travelers should be prepared for both warm and chilly weather, making layering essential for a comfortable experience.
In Forest in December, the total precipitation amount is 124 mm (4.9 in) over a span of 12 days.
In Forest in December, humidity is 88%. With an average temperature of 11°C (52°F), this humidity feels like a heavy blanket wrapping around you, making travel uncomfortable and the air feel thick, encouraging you to seek shelter or stay hydrated as you explore.
In Forest 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 Forest for better planning.
UV Risk Categories
Weather in Forest varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Forest, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 9°C (49°F) | 108 mm (4.3 inches) | 85% | moderate |
| February Weather | 12°C (54°F) | 152 mm (6.0 inches) | 84% | high |
| March Weather | 16°C (61°F) | 130 mm (5.1 inches) | 82% | very high |
| April Weather | 18°C (65°F) | 154 mm (6.0 inches) | 82% | extreme |
| May Weather | 23°C (74°F) | 140 mm (5.5 inches) | 82% | extreme |
| June Weather | 26°C (79°F) | 162 mm (6.4 inches) | 79% | extreme |
| July Weather | 27°C (81°F) | 128 mm (5.0 inches) | 82% | extreme |
| August Weather | 27°C (81°F) | 135 mm (5.3 inches) | 77% | extreme |
| September Weather | 25°C (78°F) | 101 mm (4.0 inches) | 74% | very high |
| October Weather | 20°C (69°F) | 98 mm (3.9 inches) | 73% | very high |
| November Weather | 13°C (55°F) | 71 mm (2.8 inches) | 85% | high |
| December Weather | 11°C (52°F) | 124 mm (4.9 inches) | 88% | moderate |