Last updated: June 24, 2025
In December, the average temperature in Moultonborough, United States hovers around -3°C (26°F). Temperatures can swing dramatically, with a minimum of -24°C (-10°F) and a maximum reaching 14°C (58°F). Be prepared for some rain, as 127 mm (5.0 in) of precipitation typically falls over 10 days. Adding to the chill, the average humidity is a brisk 81%.
In December in Moultonborough, the average temperature is -3°C (26°F). Maximum temperatures can reach 14°C (58°F), while minimums can drop as low as -24°C (-10°F). Travelers should be prepared for a wide range of temperatures and dress in layers to ensure comfort during their visit.
In Moultonborough in December, the precipitation amount is 127 mm (5.0 in), spread over a period of 10 days.
In Moultonborough in December, humidity is 81%. With an average temperature of -3°C (26°F), this humidity feels like an icy blanket wrapping around you, making travel uncomfortable and the cold air penetrate your clothes, turning every step into a brisk challenge.
In Moultonborough 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 Moultonborough, you can visit Hourly UV Index in Moultonborough.
UV Risk Categories
Weather in Moultonborough varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Moultonborough, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (21°F) | 79 mm (3.1 inches) | 86% | moderate |
| February Weather | -5°C (24°F) | 88 mm (3.5 inches) | 84% | moderate |
| March Weather | -1°C (30°F) | 76 mm (3.0 inches) | 82% | moderate |
| April Weather | 6°C (43°F) | 137 mm (5.4 inches) | 80% | very high |
| May Weather | 13°C (55°F) | 85 mm (3.4 inches) | 72% | very high |
| June Weather | 18°C (65°F) | 102 mm (4.0 inches) | 72% | very high |
| July Weather | 21°C (70°F) | 145 mm (5.7 inches) | 67% | very high |
| August Weather | 20°C (69°F) | 95 mm (3.7 inches) | 66% | very high |
| September Weather | 17°C (62°F) | 68 mm (2.7 inches) | 71% | high |
| October Weather | 10°C (51°F) | 138 mm (5.4 inches) | 78% | moderate |
| November Weather | 2°C (36°F) | 121 mm (4.8 inches) | 84% | moderate |
| December Weather | -3°C (26°F) | 127 mm (5.0 inches) | 81% | low |