Last updated: June 24, 2025
In December, the average temperature in Chevy Chase Heights, United States hovers around 2°C (35°F). Experience the chill, as temperatures can dip to a brisk -15°C (6°F), while occasionally peaking at a mild 18°C (64°F). Be prepared for the wet weather with 106 mm (4.2 in) of precipitation spread over 14 days, and note that the air carries a natural humidity level of 88%.
In December in Chevy Chase Heights, the average temperature is 2°C (35°F). Maximum temperatures can reach 18°C (64°F), while minimums can drop to as low as -15°C (6°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.
In Chevy Chase Heights in December, the precipitation amount is 106 mm (4.2 in) over a period of 14 days.
In Chevy Chase Heights in December, humidity is 88%. With an average temperature of 2°C (35°F), this humidity feels like you're wrapped in a cold, damp blanket, making outdoor activities uncomfortable and travel challenging due to the chill seeping into your bones.
In Chevy Chase Heights 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 Chevy Chase Heights, you can visit Hourly UV Index in Chevy Chase Heights.
UV Risk Categories
Weather in Chevy Chase Heights varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Chevy Chase Heights, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (30°F) | 97 mm (3.8 inches) | 89% | moderate |
| February Weather | 1°C (34°F) | 127 mm (5.0 inches) | 90% | moderate |
| March Weather | 4°C (40°F) | 108 mm (4.3 inches) | 89% | high |
| April Weather | 10°C (50°F) | 132 mm (5.2 inches) | 88% | very high |
| May Weather | 16°C (61°F) | 158 mm (6.2 inches) | 80% | very high |
| June Weather | 20°C (69°F) | 131 mm (5.2 inches) | 79% | very high |
| July Weather | 23°C (74°F) | 136 mm (5.3 inches) | 74% | very high |
| August Weather | 22°C (72°F) | 92 mm (3.6 inches) | 64% | very high |
| September Weather | 19°C (66°F) | 123 mm (4.9 inches) | 67% | very high |
| October Weather | 13°C (56°F) | 121 mm (4.7 inches) | 81% | high |
| November Weather | 5°C (41°F) | 96 mm (3.8 inches) | 89% | moderate |
| December Weather | 2°C (35°F) | 106 mm (4.2 inches) | 88% | low |