Last updated: June 24, 2025
In December, the average temperature in Randolph, United States hovers around -5°C (23°F), with extremes ranging from a chilly -29°C (-20°F) to a milder 14°C (57°F). Expect 93 mm (3.7 in) of precipitation over approximately 15 days, contributing to an average humidity of 84%. Bundle up and prepare for brisk conditions!
In December, in Randolph, the average temperature is -5°C (23°F). Maximum temperatures can reach 14°C (57°F), while minimum temperatures can drop as low as -29°C (-20°F). Travelers should be prepared for a wide range of temperatures, from chilly days to potentially extreme cold at night.
In Randolph in December, the precipitation amount is 93 mm (3.7 in) over the course of 15 days.
In Randolph in December, humidity is 84%. With an average temperature of -5°C (23°F), this humidity feels like an icy blanket wrapping around you, making the cold air bite even deeper and turning travel into a brisk, challenging adventure where each breath comes with a frosty reminder of the chill.
In Randolph 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 Randolph, you can visit Hourly UV Index in Randolph.
UV Risk Categories
Weather in Randolph varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Randolph, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -8°C (18°F) | 84 mm (3.3 inches) | 89% | low |
| February Weather | -6°C (21°F) | 87 mm (3.4 inches) | 88% | moderate |
| March Weather | -2°C (28°F) | 81 mm (3.2 inches) | 86% | moderate |
| April Weather | 5°C (42°F) | 128 mm (5.0 inches) | 84% | very high |
| May Weather | 12°C (54°F) | 110 mm (4.3 inches) | 76% | very high |
| June Weather | 17°C (63°F) | 105 mm (4.1 inches) | 72% | very high |
| July Weather | 20°C (68°F) | 150 mm (5.9 inches) | 66% | very high |
| August Weather | 19°C (66°F) | 102 mm (4.0 inches) | 64% | very high |
| September Weather | 15°C (59°F) | 79 mm (3.1 inches) | 72% | high |
| October Weather | 9°C (48°F) | 153 mm (6.0 inches) | 81% | moderate |
| November Weather | 0°C (33°F) | 112 mm (4.4 inches) | 87% | moderate |
| December Weather | -5°C (23°F) | 93 mm (3.7 inches) | 84% | low |