Last updated: June 24, 2025
In Sloan, United States, the average temperature in December hovers around -2°C (29°F). However, temperatures can swing dramatically, with a minimum of -23°C (-9°F) and a maximum reaching as high as 20°C (69°F). Expect 42 mm (1.6 in) of precipitation over approximately 4 days, and prepare for a relatively high average humidity of 83%.
In December in Sloan, the average temperature is -2°C (29°F). Maximums can reach 20°C (69°F), while minimums can drop as low as -23°C (-9°F). Travelers should be prepared for a wide range of temperatures, making it essential to pack for both warmth and mild weather.
In Sloan in December, the precipitation amount is 42 mm (1.6 in) spread over a period of 4 days.
In Sloan in December, humidity is 83%. With an average temperature of -2°C (29°F), this humidity feels like a biting chill that seeps into your bones, making travel outside feel particularly uncomfortable and brisk, as the damp air enhances the cold sensation, leaving you longing for warmth and shelter.
In Sloan 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 Sloan, you can visit Hourly UV Index in Sloan.
UV Risk Categories
Weather in Sloan varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sloan, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (23°F) | 28 mm (1.1 inches) | 80% | moderate |
| February Weather | -5°C (23°F) | 31 mm (1.2 inches) | 84% | moderate |
| March Weather | 4°C (39°F) | 83 mm (3.3 inches) | 75% | moderate |
| April Weather | 9°C (48°F) | 75 mm (2.9 inches) | 79% | very high |
| May Weather | 16°C (62°F) | 141 mm (5.6 inches) | 74% | very high |
| June Weather | 24°C (75°F) | 113 mm (4.4 inches) | 81% | extreme |
| July Weather | 25°C (77°F) | 59 mm (2.3 inches) | 82% | very high |
| August Weather | 23°C (74°F) | 108 mm (4.3 inches) | 80% | very high |
| September Weather | 20°C (68°F) | 98 mm (3.9 inches) | 75% | very high |
| October Weather | 11°C (51°F) | 80 mm (3.1 inches) | 77% | moderate |
| November Weather | 3°C (38°F) | 27 mm (1.1 inches) | 85% | moderate |
| December Weather | -2°C (29°F) | 42 mm (1.6 inches) | 83% | low |