Last updated: June 24, 2025
In December, the average temperature in Swea City, United States is a chilly -3°C (27°F). Expect temperatures to dip as low as -24°C (-10°F) and, on rare occasions, rise to a maximum of 20°C (67°F). During this month, the region experiences an average precipitation of 42 mm (1.7 in) over the course of 5 days, coupled with a high humidity level of 83%. Be prepared for a brisk and damp winter!
In December, in Swea City, the average temperature is -3°C (27°F). The maximum can reach 20°C (67°F), while the minimum can plummet to as low as -24°C (-10°F). Be prepared for a wide range of temperatures if you plan to travel during this time.
In Swea City in December, the precipitation amount is 42 mm (1.7 in) over a span of 5 days.
In Swea 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 Swea 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 Swea City, you can check the information here.
UV Risk Categories
Weather in Swea City varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Swea City, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -8°C (18°F) | 35 mm (1.4 inches) | 82% | moderate |
| February Weather | -8°C (18°F) | 43 mm (1.7 inches) | 84% | moderate |
| March Weather | 1°C (35°F) | 73 mm (2.9 inches) | 80% | moderate |
| April Weather | 7°C (45°F) | 91 mm (3.6 inches) | 81% | very high |
| May Weather | 16°C (60°F) | 150 mm (5.9 inches) | 74% | very high |
| June Weather | 22°C (73°F) | 120 mm (4.7 inches) | 80% | very high |
| July Weather | 24°C (75°F) | 114 mm (4.5 inches) | 80% | very high |
| August Weather | 21°C (71°F) | 113 mm (4.4 inches) | 77% | very high |
| September Weather | 19°C (66°F) | 106 mm (4.2 inches) | 75% | very high |
| October Weather | 10°C (49°F) | 94 mm (3.7 inches) | 80% | moderate |
| November Weather | 2°C (35°F) | 35 mm (1.4 inches) | 87% | moderate |
| December Weather | -3°C (27°F) | 42 mm (1.7 inches) | 83% | moderate |