Full Cold Moon framed by frost-covered trees on a clear winter night.

The December Full Moon is Named the Cold Moon 

The Cold Moon will reach peak illumination on December 4 at 6:14 P.M. EST.  The December full Moon is named the Cold Moon and will be the final Supermoon of 2025. A Supermoon is when the Moon is at its closest to Earth and will appear slightly larger and brighter around Moonrise. The December full Moon is called …