Last updated: June 24, 2025
In Winnebago, United States, the average temperature in December hovers around -3°C (26°F), with extremes ranging from a chilly -24°C (-11°F) to a surprisingly warm 19°C (67°F). Expect 42 mm (1.7 in) of precipitation over 5 days, while the air carries an average humidity of 83%. Embrace the crisp atmosphere and prepare for varied weather conditions!
In December in Winnebago, the average temperature is -3°C (26°F), with maximums reaching 19°C (67°F) and minimums dipping as low as -24°C (-11°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.
In Winnebago in December, the precipitation amount is 42 mm (1.7 in) over a span of 5 days.
In Winnebago in December, humidity is 83%. With an average temperature of -3°C (26°F), this humidity feels like a heavy blanket of cold air enveloping you, making it challenging to stay warm while traveling. The dampness seeps into your clothing, creating an uncomfortable chill that lingers even indoors, often requiring extra layers and careful planning for outdoor activities.
In Winnebago 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 Winnebago, you can check the information here.
UV Risk Categories
Weather in Winnebago varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Winnebago, 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 (17°F) | 39 mm (1.5 inches) | 84% | moderate |
| March Weather | 1°C (34°F) | 71 mm (2.8 inches) | 80% | moderate |
| April Weather | 7°C (45°F) | 93 mm (3.7 inches) | 81% | very high |
| May Weather | 16°C (60°F) | 144 mm (5.7 inches) | 74% | very high |
| June Weather | 22°C (73°F) | 120 mm (4.7 inches) | 80% | very high |
| July Weather | 23°C (75°F) | 115 mm (4.5 inches) | 80% | very high |
| August Weather | 22°C (71°F) | 109 mm (4.3 inches) | 77% | very high |
| September Weather | 19°C (66°F) | 115 mm (4.5 inches) | 75% | very high |
| October Weather | 9°C (49°F) | 92 mm (3.6 inches) | 80% | moderate |
| November Weather | 2°C (35°F) | 35 mm (1.4 inches) | 87% | moderate |
| December Weather | -3°C (26°F) | 42 mm (1.7 inches) | 83% | moderate |