Last updated: June 24, 2025
In December, the average temperature in Spencerville, United States hovers around 2°C (35°F), with fluctuations ranging from a chilly -23°C (-10°F) to a mild 17°C (63°F). You'll experience about 64 mm (2.5 in) of precipitation over 10 days, contributing to an average humidity level of a brisk 86%. Be prepared for a mix of cold and damp conditions this month!
In December, in Spencerville, the average temperature is 2°C (35°F), with maximums reaching 17°C (63°F) and minimums dropping as low as -23°C (-10°F). Travelers should be prepared for a wide range of temperatures during their visit.
In Spencerville in December, the precipitation amount is 64 mm (2.5 in) over a span of 10 days.
In Spencerville in December humidity is 86%. With an average temperature of 2°C (35°F), this humidity feels like a damp chill that seeps into your bones, making traveling quite uncomfortable as your clothes cling to you and the cold air cuts through any warmth you try to find.
In Spencerville 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 Spencerville, you can visit Hourly UV Index in Spencerville.
UV Risk Categories
Weather in Spencerville varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Spencerville, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (29°F) | 74 mm (2.9 inches) | 88% | moderate |
| February Weather | 0°C (32°F) | 89 mm (3.5 inches) | 87% | moderate |
| March Weather | 5°C (41°F) | 100 mm (4.0 inches) | 87% | high |
| April Weather | 10°C (51°F) | 100 mm (3.9 inches) | 87% | very high |
| May Weather | 17°C (63°F) | 124 mm (4.9 inches) | 81% | very high |
| June Weather | 22°C (72°F) | 122 mm (4.8 inches) | 82% | very high |
| July Weather | 24°C (76°F) | 107 mm (4.2 inches) | 81% | very high |
| August Weather | 23°C (73°F) | 98 mm (3.9 inches) | 78% | very high |
| September Weather | 20°C (69°F) | 71 mm (2.8 inches) | 78% | very high |
| October Weather | 14°C (57°F) | 94 mm (3.7 inches) | 82% | high |
| November Weather | 5°C (42°F) | 83 mm (3.3 inches) | 89% | moderate |
| December Weather | 2°C (35°F) | 64 mm (2.5 inches) | 86% | low |