Last updated: June 24, 2025
In December, the average temperature in Plains, United States hovers around -3°C (27°F). With a potential minimum of -23°C (-9°F) and a maximum reaching 13°C (57°F), be prepared for a range of chilly conditions. Expect 88 mm (3.5 in) of precipitation spread over 15 days, accompanied by a high average humidity of 90%. Stay warm and dry!
In December in Plains, the average temperature is -3°C (27°F), with maximums reaching 13°C (57°F) and minimums dipping as low as -23°C (-9°F). Travelers should be prepared for both chilly conditions and occasional milder days during this time.
In Plains in December, the precipitation amount is 88 mm (3.5 in) over a span of 15 days.
In Plains in December humidity is 90%. With an average temperature of -3°C (27°F), this humidity feels like a bitter chill that seeps into your bones, making travel uncomfortable and necessitating extra layers to combat both the cold and the dampness in the air.
In Plains 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 Plains, you can visit Hourly UV Index in Plains.
UV Risk Categories
Weather in Plains varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Plains, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (25°F) | 69 mm (2.7 inches) | 89% | low |
| February Weather | -6°C (22°F) | 111 mm (4.4 inches) | 89% | moderate |
| March Weather | 0°C (32°F) | 72 mm (2.8 inches) | 87% | high |
| April Weather | 4°C (39°F) | 85 mm (3.3 inches) | 84% | high |
| May Weather | 10°C (50°F) | 82 mm (3.2 inches) | 77% | very high |
| June Weather | 15°C (58°F) | 60 mm (2.4 inches) | 78% | very high |
| July Weather | 20°C (68°F) | 21 mm (0.8 inches) | 77% | very high |
| August Weather | 19°C (66°F) | 27 mm (1.1 inches) | 64% | very high |
| September Weather | 13°C (55°F) | 39 mm (1.5 inches) | 62% | high |
| October Weather | 5°C (41°F) | 83 mm (3.3 inches) | 79% | moderate |
| November Weather | 0°C (33°F) | 91 mm (3.6 inches) | 87% | moderate |
| December Weather | -3°C (27°F) | 88 mm (3.5 inches) | 90% | low |