Last updated: June 24, 2025
In Spring Grove, United States, the average temperature for December hovers around -3°C (27°F). Expect a chilly atmosphere, with minimums plunging to -24°C (-11°F) and maximums reaching up to 19°C (67°F). The month sees about 40 mm (1.6 in) of precipitation over approximately 6 days, accompanied by a high average humidity of 82%.
In December in Spring Grove, the average temperature is -3°C (27°F). The maximum can reach 19°C (67°F), while the minimum can drop as low as -24°C (-11°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.
In Spring Grove in December, the precipitation amount is 40 mm (1.6 in) over the course of 6 days.
In Spring Grove in December, humidity is 82%. With an average temperature of -3°C (27°F), this humidity feels like a biting chill that seeps into your bones, making traveling uncomfortable and necessitating extra layers to stay warm while navigating through the damp air.
In Spring 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 Spring Grove, you can visit Hourly UV Index in Spring Grove.
UV Risk Categories
Weather in Spring Grove varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Spring Grove, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -7°C (20°F) | 38 mm (1.5 inches) | 84% | moderate |
| February Weather | -7°C (20°F) | 50 mm (2.0 inches) | 85% | moderate |
| March Weather | 2°C (35°F) | 62 mm (2.5 inches) | 84% | moderate |
| April Weather | 7°C (45°F) | 85 mm (3.4 inches) | 83% | very high |
| May Weather | 15°C (59°F) | 147 mm (5.8 inches) | 75% | very high |
| June Weather | 22°C (71°F) | 132 mm (5.2 inches) | 79% | very high |
| July Weather | 23°C (74°F) | 112 mm (4.4 inches) | 75% | very high |
| August Weather | 21°C (70°F) | 104 mm (4.1 inches) | 69% | very high |
| September Weather | 18°C (65°F) | 120 mm (4.7 inches) | 74% | very high |
| October Weather | 10°C (49°F) | 128 mm (5.0 inches) | 79% | moderate |
| November Weather | 1°C (35°F) | 54 mm (2.1 inches) | 88% | moderate |
| December Weather | -3°C (27°F) | 40 mm (1.6 inches) | 82% | low |