Last updated: June 24, 2025
In December, the average temperature in Redmond, United States hovers around -4°C (25°F), with a minimum reaching as low as -22°C (-8°F) and a maximum peaking at 13°C (56°F). Expect precipitation totaling 38 mm (1.5 in) over approximately 9 days, complemented by a high average humidity of 87%, making this a truly chilly month!
In December in Redmond, the average temperature is -4°C (25°F). Maximum temperatures can reach 13°C (56°F), while minimums can drop as low as -22°C (-8°F). Travelers should be prepared for a wide range of temperatures and dress in layers to ensure comfort during their visit.
In Redmond in December, the total precipitation amount is 38 mm (1.5 in) spread over a duration of 9 days.
In Redmond in December humidity is 87%. With an average temperature of -4°C (25°F), this humidity feels like a biting chill that clings to your skin, making every step outside feel like an endeavor as the cold damp air numbs your senses and weighs you down, creating an atmosphere that is both invigorating and challenging for traveling.
In Redmond 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 Redmond for better planning.
UV Risk Categories
Weather in Redmond varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Redmond, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (24°F) | 39 mm (1.5 inches) | 87% | moderate |
| February Weather | -4°C (26°F) | 49 mm (1.9 inches) | 88% | high |
| March Weather | 1°C (33°F) | 50 mm (2.0 inches) | 77% | very high |
| April Weather | 6°C (43°F) | 38 mm (1.5 inches) | 69% | extreme |
| May Weather | 11°C (53°F) | 41 mm (1.6 inches) | 54% | extreme |
| June Weather | 19°C (67°F) | 9 mm (0.3 inches) | 45% | extreme |
| July Weather | 23°C (73°F) | 15 mm (0.6 inches) | 37% | extreme |
| August Weather | 22°C (71°F) | 13 mm (0.5 inches) | 34% | extreme |
| September Weather | 16°C (62°F) | 21 mm (0.8 inches) | 47% | very high |
| October Weather | 7°C (44°F) | 33 mm (1.3 inches) | 67% | high |
| November Weather | 2°C (37°F) | 25 mm (1.0 inches) | 82% | high |
| December Weather | -4°C (25°F) | 38 mm (1.5 inches) | 87% | moderate |