Holidays in the year 31

• New Year's Day = 31-01-01
  New Year's Day Observed = 31-01-01
• Martin Luther King Day Observed (Third Monday in January) = 31-01-20
• Valentine's Day = 31-02-14
• President's Day Observed (Third Monday in February) = 31-02-17
• St. Patrick's Day = 31-03-17
• Easter = 31-03-30
• Cinco De Mayo = 31-05-05
• Memorial Day Observed (Last Monday in May) = 31-05-26
• Independence Day = 31-07-04
  Independence Day Observed = 31-07-04
• Labor Day Observed (First Monday in September) = 31-09-01
• Columbus Day Observed (Second Monday in October) = 31-10-13
• Halloween = 31-10-31
• Thanksgiving (Fourth Thursday in November) = 31-11-27
• Christmas Day = 31-12-25