Last updated: June 24, 2025
In December, the average temperature in Box Elder, United States hovers around -1°C (30°F). However, don't be surprised if temperatures swing dramatically; they can plummet to a chilly -22°C (-8°F) or rise to a pleasant 22°C (72°F). Expect 26 mm (1.0 in) of precipitation over approximately 5 days, with an average humidity of 75% adding a touch of dampness to the air. Be prepared for an exhilarating mix of winter weather!
In December in Box Elder, the average temperature is -1°C (30°F), with maximums reaching 22°C (72°F) and minimums dropping as low as -22°C (-8°F). Travelers should be prepared for a wide range of temperatures, from chilly to pleasantly warm, so it's best to pack layers.
In Box Elder in December, the precipitation amount is 26 mm (1.0 in) over the course of 5 days.
In Box Elder in December, humidity is 75%. With an average temperature of -1°C (30°F), this humidity feels like a biting chill that cuts through layers of clothing, making outdoor exploration quite uncomfortable and prompting the need for warm, breathable gear to maintain some level of comfort while traveling.
In Box Elder 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 Box Elder, you can visit Hourly UV Index in Box Elder.
UV Risk Categories
Weather in Box Elder varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Box Elder, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (27°F) | 11 mm (0.5 inches) | 73% | moderate |
| February Weather | -5°C (23°F) | 21 mm (0.8 inches) | 78% | moderate |
| March Weather | 2°C (37°F) | 38 mm (1.5 inches) | 64% | high |
| April Weather | 6°C (44°F) | 62 mm (2.4 inches) | 66% | very high |
| May Weather | 13°C (55°F) | 93 mm (3.7 inches) | 74% | very high |
| June Weather | 21°C (69°F) | 56 mm (2.2 inches) | 84% | extreme |
| July Weather | 24°C (75°F) | 69 mm (2.7 inches) | 85% | extreme |
| August Weather | 22°C (72°F) | 34 mm (1.3 inches) | 85% | very high |
| September Weather | 18°C (64°F) | 33 mm (1.3 inches) | 76% | very high |
| October Weather | 8°C (47°F) | 48 mm (1.9 inches) | 71% | moderate |
| November Weather | 3°C (38°F) | 13 mm (0.5 inches) | 73% | moderate |
| December Weather | -1°C (30°F) | 26 mm (1.0 inches) | 75% | low |