Calendar 2025 December With Holidays. Detailed calendar for december 2025 with federal, religious and common holidays marked. Printable december 2025 calendar templates with holidays the last month of the year, december is filled with festive joy and winter’s first chill in the northern hemisphere, while the southern hemisphere basks in summer warmth.
View the month calendar of december 2025 calendar including week numbers. Includes all united states federal holidays and presidentially mandated observance days.