Last updated: June 24, 2025
In December, the average temperature in Rockdale, United States hovers around 13°C (55°F). Expect a chilly minimum of -3°C (27°F) and a pleasant maximum of 29°C (84°F). With 86 mm (3.4 in) of precipitation spread over 8 days, and an average humidity of 87%, be prepared for a mix of weather conditions.
In December in Rockdale, the average temperature is 13°C (55°F). The maximum can reach 29°C (84°F), while the minimum can drop as low as -3°C (27°F). This range of temperatures makes Rockdale an ideal destination for travelers seeking mild weather with the possibility of both warm days and cool nights.
In Rockdale in December, the precipitation amount reaches 86 mm (3.4 in) over the course of 8 days.
In Rockdale in December, humidity is 87%. With an average temperature of 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making travel sluggish and slightly uncomfortable, as each step seems to cling to the damp air.
In Rockdale 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 Rockdale for better planning.
UV Risk Categories
Weather in Rockdale varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Rockdale, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 11°C (52°F) | 61 mm (2.4 inches) | 79% | moderate |
| February Weather | 12°C (53°F) | 72 mm (2.9 inches) | 80% | high |
| March Weather | 18°C (64°F) | 73 mm (2.9 inches) | 78% | very high |
| April Weather | 20°C (69°F) | 110 mm (4.3 inches) | 79% | very high |
| May Weather | 25°C (77°F) | 159 mm (6.2 inches) | 81% | extreme |
| June Weather | 28°C (83°F) | 89 mm (3.5 inches) | 77% | extreme |
| July Weather | 30°C (86°F) | 74 mm (2.9 inches) | 71% | extreme |
| August Weather | 31°C (87°F) | 106 mm (4.2 inches) | 67% | extreme |
| September Weather | 27°C (81°F) | 117 mm (4.6 inches) | 69% | very high |
| October Weather | 22°C (71°F) | 92 mm (3.6 inches) | 73% | very high |
| November Weather | 16°C (60°F) | 65 mm (2.6 inches) | 82% | high |
| December Weather | 13°C (55°F) | 86 mm (3.4 inches) | 87% | moderate |