Why does Siberia have more precipitation in the summer and not in the winter?

Siberia experiences more precipitation in the summer due to the warmer temperatures that facilitate moisture-laden air from the Atlantic and Pacific Oceans. During summer, these air masses can rise, cool, and condense, leading to increased rainfall. In contrast, winter temperatures are extremely low, which limits moisture availability and leads to dry conditions. Additionally, the polar continental climate in winter restricts storm systems, further reducing precipitation during those months.