Last updated: June 24, 2025
In December, the average temperature in Fostoria, United States hovers around -1°C (31°F), with extremes ranging from a chilly -21°C (-6°F) to a surprisingly mild 18°C (64°F). Expect about 54 mm (2.1 in) of precipitation spread over 10 days, contributing to a high average humidity of 86%. Prepare for a month that showcases the frosty charm of winter!
In December in Fostoria, average temperature is -1°C (31°F). Maximum can reach 18°C (64°F) and minimum can be as low as -21°C (-6°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.
In Fostoria in December, the total precipitation amount is 54 mm (2.1 in) over the course of 10 days.
In Fostoria in December humidity is 86%. With an average temperature of -1°C (31°F), this humidity feels like an eerie chill enveloping you, making travel uncomfortable as the damp air bites into your skin and the cold seeps through even the warmest of clothes, creating an atmosphere that is heavy and uninviting.
In Fostoria 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 Fostoria, you can visit Hourly UV Index in Fostoria.
UV Risk Categories
Weather in Fostoria varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Fostoria, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (25°F) | 62 mm (2.5 inches) | 88% | low |
| February Weather | -3°C (26°F) | 65 mm (2.6 inches) | 87% | moderate |
| March Weather | 2°C (35°F) | 66 mm (2.6 inches) | 85% | moderate |
| April Weather | 7°C (45°F) | 96 mm (3.8 inches) | 86% | very high |
| May Weather | 14°C (58°F) | 99 mm (3.9 inches) | 80% | very high |
| June Weather | 20°C (68°F) | 103 mm (4.1 inches) | 80% | very high |
| July Weather | 23°C (73°F) | 80 mm (3.1 inches) | 80% | very high |
| August Weather | 21°C (71°F) | 93 mm (3.7 inches) | 80% | very high |
| September Weather | 18°C (64°F) | 83 mm (3.3 inches) | 80% | high |
| October Weather | 11°C (53°F) | 109 mm (4.3 inches) | 84% | moderate |
| November Weather | 3°C (38°F) | 67 mm (2.6 inches) | 89% | moderate |
| December Weather | -1°C (31°F) | 54 mm (2.1 inches) | 86% | low |