Last updated: June 24, 2025
In December, the average temperature in Stewartville, United States hovers around -4°C (25°F). However, be prepared for a significant range, as temperatures can plunge to a chilling -24°C (-11°F) or rise to a mild 19°C (66°F). Expect some moisture, with 39 mm (1.5 in) of precipitation spread over approximately 6 days, and enjoy the crisp air with an average humidity of 83%.
In December in Stewartville, the average temperature is -4°C (25°F), with maximums reaching 19°C (66°F) and minimums plunging as low as -24°C (-11°F). Travelers should be prepared for a wide range of temperatures and dress accordingly to ensure comfort during their visit.
In Stewartville in December, the precipitation amount is 39 mm (1.5 in), occurring over the course of 6 days.
In Stewartville in December, humidity is 83%. With an average temperature of -4°C (25°F), this humidity feels like a chilling fog enveloping you, making every breath feel heavy and damp, which can quickly dampen the spirit of travel as you navigate the frosty landscape.
In Stewartville in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Stewartville, you can visit Hourly UV Index in Stewartville.
UV Risk Categories
Weather in Stewartville varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Stewartville, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -8°C (18°F) | 36 mm (1.4 inches) | 82% | moderate |
| February Weather | -8°C (18°F) | 47 mm (1.9 inches) | 84% | moderate |
| March Weather | 1°C (34°F) | 61 mm (2.4 inches) | 80% | moderate |
| April Weather | 7°C (44°F) | 85 mm (3.4 inches) | 81% | very high |
| May Weather | 15°C (59°F) | 149 mm (5.9 inches) | 74% | very high |
| June Weather | 21°C (71°F) | 134 mm (5.3 inches) | 80% | very high |
| July Weather | 23°C (73°F) | 96 mm (3.8 inches) | 80% | very high |
| August Weather | 21°C (70°F) | 106 mm (4.2 inches) | 77% | very high |
| September Weather | 18°C (64°F) | 121 mm (4.8 inches) | 75% | very high |
| October Weather | 9°C (48°F) | 115 mm (4.5 inches) | 80% | moderate |
| November Weather | 1°C (34°F) | 50 mm (2.0 inches) | 87% | moderate |
| December Weather | -4°C (25°F) | 39 mm (1.5 inches) | 83% | low |