Last updated: June 24, 2025
In December, the average temperature in Cedar City, United States hovers around -2°C (28°F). However, be prepared for extremes, as the temperature can plummet to a chilly -22°C (-7°F) or peak at a mild 14°C (57°F). Expect around 40 mm (1.6 in) of precipitation over 7 days, amidst an average humidity of 80%. Stay warm and dry!
In December in Cedar City, the average temperature is -2°C (28°F). Maximum temperatures can reach 14°C (57°F), while minimums can drop as low as -22°C (-7°F). Be prepared for a wide range of temperatures when traveling during this time.
In Cedar City in December, the precipitation amount is 40 mm (1.6 in) over a span of 7 days.
In Cedar City in December, humidity is 80%. With an average temperature of -2°C (28°F), this humidity feels like a sharp, biting chill that seeps into your bones, making outdoor exploration uncomfortable and necessitating extra layers to ward off the damp cold.
In Cedar City in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Cedar City for better planning.
UV Risk Categories
Weather in Cedar City varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Cedar City, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -3°C (26°F) | 46 mm (1.8 inches) | 80% | moderate |
| February Weather | -2°C (29°F) | 54 mm (2.1 inches) | 82% | high |
| March Weather | 2°C (36°F) | 65 mm (2.6 inches) | 72% | very high |
| April Weather | 7°C (46°F) | 30 mm (1.2 inches) | 62% | very high |
| May Weather | 12°C (55°F) | 31 mm (1.2 inches) | 45% | extreme |
| June Weather | 20°C (68°F) | 5 mm (0.2 inches) | 34% | extreme |
| July Weather | 23°C (73°F) | 33 mm (1.3 inches) | 30% | extreme |
| August Weather | 22°C (72°F) | 22 mm (0.8 inches) | 31% | extreme |
| September Weather | 17°C (63°F) | 12 mm (0.5 inches) | 47% | very high |
| October Weather | 8°C (47°F) | 29 mm (1.1 inches) | 62% | high |
| November Weather | 4°C (39°F) | 34 mm (1.3 inches) | 77% | moderate |
| December Weather | -2°C (28°F) | 40 mm (1.6 inches) | 80% | moderate |