Free printable December 2025 calendar with US federal holidays, ISO week numbers, and moon phases. View online, download the PDF, or print on letter or A4 — no signup required.. December is the twelfth month of the year and has 31 days. It was originally the tenth month of the Roman calendar until 153 BCE.
United States December 2025 - Calendar with American holidays. Monthly calendar for the month December in year 2025. Calendars - online and print friendly - for any year and month. A December Calendar is a monthly layout that displays all the days and dates of the month of December, often including holidays and notes sections. December Calendar templates provide editable text areas and design layers for easy customization.