Last updated: June 24, 2025
In December, the average temperature in Spring Grove, United States hovers around 0°C (32°F). Expect chilly nights, where temperatures can dip to a brisk -22°C (-7°F), while the days may warm up to a refreshing 19°C (66°F). With 53 mm (2.1 in) of precipitation spread over 6 days, you might want to keep an umbrella handy. The air will feel quite humid, with an average humidity level of 81%, adding to the month's unique climate character.
In December in Spring Grove, the average temperature is 0°C (32°F), with maximums reaching 19°C (66°F) and minimums dropping as low as -22°C (-7°F). Travelers should be prepared for chilly conditions, but can also enjoy some milder days suitable for outdoor exploration.
In Spring Grove in December, the precipitation amount is 53 mm (2.1 in) over a span of 6 days.
In Spring Grove in December, humidity is 81%. With an average temperature of 0°C (32°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and requiring extra layers to stay warm and dry while traveling.
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 | -5°C (24°F) | 61 mm (2.4 inches) | 85% | moderate |
| February Weather | -3°C (26°F) | 57 mm (2.2 inches) | 85% | moderate |
| March Weather | 3°C (37°F) | 65 mm (2.6 inches) | 85% | high |
| April Weather | 8°C (47°F) | 112 mm (4.4 inches) | 85% | very high |
| May Weather | 15°C (59°F) | 156 mm (6.1 inches) | 78% | very high |
| June Weather | 21°C (70°F) | 108 mm (4.2 inches) | 80% | very high |
| July Weather | 24°C (75°F) | 82 mm (3.2 inches) | 78% | very high |
| August Weather | 22°C (72°F) | 84 mm (3.3 inches) | 76% | very high |
| September Weather | 19°C (67°F) | 91 mm (3.6 inches) | 79% | very high |
| October Weather | 12°C (53°F) | 118 mm (4.6 inches) | 83% | moderate |
| November Weather | 3°C (38°F) | 48 mm (1.9 inches) | 88% | moderate |
| December Weather | 0°C (32°F) | 53 mm (2.1 inches) | 81% | low |