Last updated: June 24, 2025
In December, the average temperature in Forest City, United States hovers around -3°C (27°F). Be prepared for a chilly climate, with minimum temperatures plummeting to -23°C (-10°F) and highs reaching up to 20°C (68°F). Expect about 38 mm (1.5 in) of precipitation over approximately 5 days, and a notable average humidity of 83% makes for a damp atmosphere.
In December in Forest City, the average temperature is -3°C (27°F), with maximums reaching 20°C (68°F) and minimums plummeting as low as -23°C (-10°F). Be prepared for a wide temperature range, packing both warm clothing and some lighter layers for your travels.
In Forest City in December, the total precipitation amount is 38 mm (1.5 in) spread over a duration of 5 days.
In Forest City in December humidity is 83%. With an average temperature of -3°C (27°F), this humidity feels like a biting chill that wraps around you, making every breath feel heavy and the air almost damp with cold. Traveling in such conditions can be quite challenging, as the moisture in the air makes the cold penetrate deeper, making it essential to dress warmly and stay active to ward off the chill.
In Forest City in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Forest City, you can check the information here.
UV Risk Categories
Weather in Forest City varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Forest City, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -8°C (19°F) | 34 mm (1.4 inches) | 82% | moderate |
| February Weather | -8°C (18°F) | 47 mm (1.9 inches) | 84% | moderate |
| March Weather | 1°C (35°F) | 72 mm (2.9 inches) | 80% | moderate |
| April Weather | 7°C (46°F) | 87 mm (3.4 inches) | 81% | very high |
| May Weather | 15°C (60°F) | 158 mm (6.2 inches) | 74% | very high |
| June Weather | 22°C (72°F) | 129 mm (5.1 inches) | 80% | extreme |
| July Weather | 23°C (74°F) | 105 mm (4.1 inches) | 80% | very high |
| August Weather | 21°C (71°F) | 122 mm (4.8 inches) | 77% | very high |
| September Weather | 19°C (66°F) | 108 mm (4.3 inches) | 75% | very high |
| October Weather | 10°C (49°F) | 108 mm (4.3 inches) | 80% | moderate |
| November Weather | 2°C (35°F) | 45 mm (1.8 inches) | 87% | moderate |
| December Weather | -3°C (27°F) | 38 mm (1.5 inches) | 83% | moderate |