Last updated: June 24, 2025
In Sugar Grove, United States, the average temperature in December hovers around 0°C (33°F). However, be prepared for a range of weather, as temperatures can dip as low as -21°C (-6°F) or rise as high as 19°C (67°F). Expect about 52 mm (2.0 in) of precipitation spread over 7 days, contributing to an average humidity of 84%.
In December in Sugar Grove, the average temperature is 0°C (33°F). The maximum can reach 19°C (67°F), and the minimum can be as low as -21°C (-6°F). Be prepared for a wide range of temperatures if you plan to travel during this time.
In Sugar Grove in December, the precipitation amount is 52 mm (2.0 in) over a duration of 7 days.
In Sugar Grove in December humidity is 84%. With average temperature 0°C (33°F), this humidity feels like a damp chill that seeps into your bones, making outdoor adventures less enjoyable and travel plans challenging.
In Sugar Grove 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 Sugar Grove, you can visit Hourly UV Index in Sugar Grove.
UV Risk Categories
Weather in Sugar Grove varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sugar Grove, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (25°F) | 63 mm (2.5 inches) | 82% | moderate |
| February Weather | -3°C (27°F) | 61 mm (2.4 inches) | 83% | moderate |
| March Weather | 4°C (40°F) | 86 mm (3.4 inches) | 84% | high |
| April Weather | 9°C (49°F) | 117 mm (4.6 inches) | 85% | very high |
| May Weather | 16°C (61°F) | 157 mm (6.2 inches) | 79% | very high |
| June Weather | 22°C (72°F) | 139 mm (5.5 inches) | 82% | very high |
| July Weather | 24°C (75°F) | 112 mm (4.4 inches) | 80% | very high |
| August Weather | 22°C (73°F) | 81 mm (3.2 inches) | 81% | very high |
| September Weather | 20°C (68°F) | 102 mm (4.0 inches) | 80% | very high |
| October Weather | 12°C (54°F) | 128 mm (5.1 inches) | 82% | high |
| November Weather | 4°C (39°F) | 56 mm (2.2 inches) | 88% | moderate |
| December Weather | 0°C (33°F) | 52 mm (2.0 inches) | 84% | low |