Last updated: June 24, 2025
In December, the average temperature in Croydon, United States hovers around -3°C (27°F), with extremes that can plunge to a chilly -25°C (-12°F) or rise to a comfortable 15°C (59°F). Expect precipitation totaling 102 mm (4.0 in) over approximately 10 days, with an average humidity level of 81%, creating a crisp and damp atmosphere perfect for winter activities.
In December in Croydon, the average temperature is -3°C (27°F). Maximums can reach 15°C (59°F) and minimums can be as low as -25°C (-12°F). It's advisable to pack warm clothing and be prepared for a wide range of temperatures when traveling to Croydon during this time.
In Croydon in December, the total precipitation amount is 102 mm (4.0 in) falling over the course of 10 days.
In Croydon in December humidity is 81%. With an average temperature of -3°C (27°F), this humidity feels like a biting chill that seeps into your bones, making traveling uncomfortable and forcing you to bundle up tightly to fend off the cold dampness.
In Croydon 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 Croydon, you can visit Hourly UV Index in Croydon.
UV Risk Categories
Weather in Croydon varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Croydon, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (22°F) | 70 mm (2.7 inches) | 86% | moderate |
| February Weather | -4°C (25°F) | 81 mm (3.2 inches) | 84% | moderate |
| March Weather | 0°C (32°F) | 71 mm (2.8 inches) | 82% | high |
| April Weather | 6°C (44°F) | 116 mm (4.6 inches) | 80% | very high |
| May Weather | 13°C (56°F) | 78 mm (3.1 inches) | 72% | very high |
| June Weather | 19°C (66°F) | 85 mm (3.4 inches) | 72% | very high |
| July Weather | 22°C (71°F) | 120 mm (4.7 inches) | 67% | very high |
| August Weather | 21°C (69°F) | 86 mm (3.4 inches) | 66% | very high |
| September Weather | 17°C (62°F) | 64 mm (2.5 inches) | 71% | high |
| October Weather | 10°C (50°F) | 132 mm (5.2 inches) | 78% | moderate |
| November Weather | 2°C (36°F) | 100 mm (3.9 inches) | 84% | moderate |
| December Weather | -3°C (27°F) | 102 mm (4.0 inches) | 81% | low |