Last updated: June 24, 2025
In Washington Court House, United States, the average temperature in December hovers around 3°C (37°F). Be prepared for a range, as temperatures can dip as low as -17°C (2°F) and soar to 19°C (66°F). With an average precipitation of 107 mm (4.2 in) spread across 11 days, and an average humidity of 87%, you might want to keep your raincoat handy and brace for the chill!
In December in Washington Court House, the average temperature is 3°C (37°F), with maximums reaching 19°C (66°F) and minimums dipping as low as -17°C (2°F). Travelers should be prepared for a range of temperatures and dress accordingly to enjoy their visit comfortably.
In Washington Court House in December, the precipitation amount is 107 mm (4.2 in) spread over a period of 11 days.
In Washington Court House in December, humidity is 87%. With an average temperature of 3°C (37°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities uncomfortable and necessitating proper layers to stay warm while navigating the wet conditions.
In Washington Court House in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Washington Court House, you can check the information here.
UV Risk Categories
Weather in Washington Court House varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Washington Court House, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 0°C (32°F) | 78 mm (3.1 inches) | 88% | moderate |
| February Weather | 2°C (36°F) | 105 mm (4.1 inches) | 88% | moderate |
| March Weather | 6°C (44°F) | 128 mm (5.0 inches) | 87% | high |
| April Weather | 11°C (53°F) | 122 mm (4.8 inches) | 85% | very high |
| May Weather | 18°C (65°F) | 126 mm (5.0 inches) | 81% | very high |
| June Weather | 22°C (72°F) | 135 mm (5.3 inches) | 82% | very high |
| July Weather | 24°C (76°F) | 131 mm (5.2 inches) | 81% | very high |
| August Weather | 23°C (74°F) | 94 mm (3.7 inches) | 73% | very high |
| September Weather | 21°C (69°F) | 89 mm (3.5 inches) | 73% | very high |
| October Weather | 15°C (58°F) | 97 mm (3.8 inches) | 78% | high |
| November Weather | 6°C (43°F) | 95 mm (3.7 inches) | 89% | moderate |
| December Weather | 3°C (37°F) | 107 mm (4.2 inches) | 87% | moderate |