Last updated: June 24, 2025
In December, the average temperature in Sheridan, United States hovers around 9°C (49°F). Expect a range from a chilly -2°C (29°F) to a pleasant 24°C (76°F). During this period, 114 mm (4.5 in) of rain may fall over 10 days, contributing to an average humidity of 83%.
In December in Sheridan, the average temperature is 9°C (49°F). Maximums can reach 24°C (76°F), and minimums can drop as low as -2°C (29°F). This variation in temperature means travelers should pack layers to enjoy a comfortable experience throughout the day.
In Sheridan in December, the precipitation amount is 114 mm (4.5 in) over a period of 10 days.
In Sheridan in December, humidity is 83%. With an average temperature of 9°C (49°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities uncomfortable for traveling and requiring extra layers to stay warm and dry.
In Sheridan in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Sheridan, you can check the information here.
UV Risk Categories
Weather in Sheridan varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sheridan, focusing on differences in temperature, rainfall, humidity, and UV levels.
Temperature | Precipitation | Humidity | UV | |
---|---|---|---|---|
January Weather | 10°C (50°F) | 138 mm (5.4 inches) | 84% | moderate |
February Weather | 11°C (52°F) | 132 mm (5.2 inches) | 84% | moderate |
March Weather | 13°C (56°F) | 122 mm (4.8 inches) | 83% | high |
April Weather | 17°C (63°F) | 58 mm (2.3 inches) | 81% | very high |
May Weather | 21°C (70°F) | 29 mm (1.1 inches) | 74% | very high |
June Weather | 26°C (79°F) | 6 mm (0.2 inches) | 64% | extreme |
July Weather | 27°C (82°F) | 1 mm (0.0 inches) | 44% | very high |
August Weather | 27°C (80°F) | 0 mm (0.0 inches) | 36% | very high |
September Weather | 24°C (75°F) | 5 mm (0.2 inches) | 44% | very high |
October Weather | 19°C (66°F) | 43 mm (1.7 inches) | 65% | high |
November Weather | 13°C (55°F) | 70 mm (2.8 inches) | 84% | moderate |
December Weather | 9°C (49°F) | 114 mm (4.5 inches) | 83% | moderate |