December in Palmdale averages a daily high of 15°C with nights around 1.3°C. Expect roughly 3.5 wet days totalling 29.1mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Palmdale is March–May.
Based on PALMDALE, CA US (2.3km), 1995–2024. 27 years of December data.