Last updated: June 24, 2025
In December, the average temperature in Concord, United States hovers around 6°C (43°F), but be prepared for a wide range—temperatures can dip to a chilly -14°C (8°F) or rise to a warm 23°C (73°F). Expect about 103 mm (4.1 in) of precipitation over approximately 8 days, with average humidity levels reaching a high 85%. Get ready for a month of varied weather!
In December in Concord, the average temperature is 6°C (43°F). Maximum temperatures can reach 23°C (73°F), while the minimum can drop as low as -14°C (8°F). Be prepared for a wide range of temperatures when traveling during this time.
In Concord in December, the precipitation amount is 103 mm (4.1 in) over a span of 8 days.
In Concord in December, humidity is 85%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that seeps into your bones, making travel feel more uncomfortable and limiting your enjoyment of the sights as you navigate the wet, brisk air.
In Concord 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 Concord, you can check the information here.
UV Risk Categories
Weather in Concord varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Concord, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (40°F) | 72 mm (2.8 inches) | 84% | moderate |
| February Weather | 7°C (45°F) | 102 mm (4.0 inches) | 84% | high |
| March Weather | 10°C (50°F) | 67 mm (2.6 inches) | 84% | high |
| April Weather | 15°C (59°F) | 117 mm (4.6 inches) | 82% | very high |
| May Weather | 20°C (68°F) | 110 mm (4.3 inches) | 82% | very high |
| June Weather | 24°C (75°F) | 106 mm (4.2 inches) | 83% | extreme |
| July Weather | 27°C (81°F) | 58 mm (2.3 inches) | 79% | very high |
| August Weather | 25°C (78°F) | 95 mm (3.7 inches) | 77% | very high |
| September Weather | 22°C (73°F) | 106 mm (4.2 inches) | 75% | very high |
| October Weather | 17°C (63°F) | 104 mm (4.1 inches) | 81% | high |
| November Weather | 9°C (48°F) | 73 mm (2.9 inches) | 87% | moderate |
| December Weather | 6°C (43°F) | 103 mm (4.1 inches) | 85% | moderate |