Last updated: June 24, 2025
In December, the average temperature in Marriott-Slaterville, United States hovers around -3°C (27°F). Expect chilly extremes, with minimums plunging to -16°C (3°F) and maxing out at 12°C (53°F). The month also brings 51 mm (2.0 in) of precipitation over 10 days, alongside a high average humidity of 88%. Be prepared for a brisk and damp winter experience!
In December in Marriott-Slaterville, the average temperature is -3°C (27°F), with a maximum reaching 12°C (53°F) and a minimum that can drop to as low as -16°C (3°F). It's advisable to pack warm clothing and be prepared for chilly conditions if you're planning to travel during this time.
In Marriott-Slaterville in December, the total precipitation amount is 51 mm (2.0 in) spread over a period of 10 days.
In Marriott-Slaterville in December humidity is 88%. With an average temperature of -3°C (27°F), this humidity feels like a biting chill that seeps into your bones, making outdoor exploration less inviting as the dampness clings to your clothing and slows your movements.
In Marriott-Slaterville 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 Marriott-Slaterville, you can check the information here.
UV Risk Categories
Weather in Marriott-Slaterville varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Marriott-Slaterville, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (26°F) | 58 mm (2.3 inches) | 91% | moderate |
| February Weather | -2°C (30°F) | 69 mm (2.7 inches) | 92% | moderate |
| March Weather | 3°C (38°F) | 54 mm (2.1 inches) | 84% | high |
| April Weather | 8°C (47°F) | 64 mm (2.5 inches) | 74% | very high |
| May Weather | 13°C (56°F) | 53 mm (2.1 inches) | 62% | very high |
| June Weather | 20°C (69°F) | 18 mm (0.7 inches) | 56% | extreme |
| July Weather | 25°C (77°F) | 10 mm (0.4 inches) | 44% | extreme |
| August Weather | 23°C (74°F) | 17 mm (0.7 inches) | 37% | very high |
| September Weather | 18°C (64°F) | 30 mm (1.2 inches) | 46% | very high |
| October Weather | 9°C (48°F) | 43 mm (1.7 inches) | 67% | high |
| November Weather | 3°C (38°F) | 43 mm (1.7 inches) | 84% | moderate |
| December Weather | -3°C (27°F) | 51 mm (2.0 inches) | 88% | moderate |