January

  1 - New Years Day
21 - Martin Luther King Day

February

  2 - Groundhog Day
  5 - Mardi Gras
  6 - Ash Wednesday
12 - Lincoln's Birthday
14 - Valentine's Day
18 - President's Day
22 - Washington's Birthday

March

  9 - Daylight Savings Time Begins
16 - Palm Sunday
17 - St. Patrick's Day
21 - Good Friday
23 - Easter Sunday

April

  1 - April Fool's Day
15 - Tax Day
19 - Passover
22 - Earth Day
23 - Administrative Professionals Day

May

  1 - National Day of Prayer
  5 - Cinco de Mayo
11 - Mother's Day
17 - Armed Forces Day
26 - Memorial Day

June

14 - Flag Day
15 - Father's Day

July

  4 - Independence Day
27 - Parents Day

August

  1 - Air Force Day
  3 - Friendship Day
  4 - Coast Guard Day

September

  1 - Labor Day
  7 - Grandparents Day
17 - Constitution & Citizenship Day
29 - Rosh Hashanah

October

  8 - Yom Kippur (starts at sunset on the day before)
12 - National Children's Day
13 - Columbus Day
13 - Navy Day
16 - Bosses' Day
18 - Sweetest Day
26 - Mother-In-Law Day
31 - Halloween

November

  2 - Daylight Savings Time Ends
  4 - Election Day
10 - Marine Corp Day
11 - Veterans Day
27 - Thanksgiving Day

December

  7 - Pearl Harbor Remembrance Day
21 - Hanukkah (through December 28)
21 - Winter Solstice
24 - Christmas Eve
25 - Christmas Day
26 - Kwanzaa (through January 2, 2009)
31 - New Years Eve