Last updated: June 24, 2025
In December, the average temperature in Otis, United States hovers around -3°C (27°F), but be prepared for some extremes; temperatures can plummet to a chilling -24°C (-12°F) or rise as high as 15°C (60°F). Expect 124 mm (4.9 in) of precipitation spread over 11 days, contributing to an average humidity of 84%. So, whether you're bracing for the cold or enjoying the occasional warmth, be ready for a range of weather conditions!
In December in Otis, the average temperature is -3°C (27°F), with maximums reaching up to 15°C (60°F) and minimums plummeting to as low as -24°C (-12°F). This range suggests travelers should be prepared for both mild and extremely cold weather during their visit.
In Otis in December, the precipitation amount is 124 mm (4.9 in) over the course of 11 days.
In Otis in December humidity is 84%. With an average temperature of -3°C (27°F), this humidity feels like a heavy blanket that wraps around you, making travel uncomfortable and your breath visible in the cold air.
In Otis 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 Otis, you can visit Hourly UV Index in Otis.
UV Risk Categories
Weather in Otis varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Otis, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (23°F) | 92 mm (3.6 inches) | 88% | low |
| February Weather | -4°C (24°F) | 84 mm (3.3 inches) | 88% | moderate |
| March Weather | -1°C (31°F) | 70 mm (2.8 inches) | 85% | moderate |
| April Weather | 6°C (43°F) | 126 mm (5.0 inches) | 81% | high |
| May Weather | 12°C (54°F) | 95 mm (3.7 inches) | 76% | very high |
| June Weather | 17°C (63°F) | 85 mm (3.3 inches) | 74% | very high |
| July Weather | 21°C (69°F) | 90 mm (3.5 inches) | 74% | very high |
| August Weather | 20°C (69°F) | 70 mm (2.8 inches) | 74% | very high |
| September Weather | 16°C (62°F) | 79 mm (3.1 inches) | 77% | high |
| October Weather | 10°C (51°F) | 110 mm (4.3 inches) | 82% | moderate |
| November Weather | 3°C (38°F) | 120 mm (4.7 inches) | 85% | moderate |
| December Weather | -3°C (27°F) | 124 mm (4.9 inches) | 84% | low |