April
- 4/15: new Pemex refinery location announcement
- 4/16-17: President Obama visit
- 4/18-19: Summit of the Americas, Trinidad
- 4/30: end of the regular Congressional session
May
- 5/1: May Day holiday
- 5/2: deadline for registration of federal Congressional candidates
- 5/5: start of federal election campaign; Battle of Puebla anniversary (Cinco de mayo)
June
July
- 7/5: national Congressional, 6 gubernatorial, and 5 other local elections
August
- 8/8: PAN elects new party president
- 8/9-10: North American Leaders Summit, Guadalajara
September
- 9/1: Presidential Informe, start of fall Congressional session
- 9/8: Government’s 2010 economic package Congress (“Criterios” macroeconomic estimates, and draft income and expenditure budget laws)
- 9/16: Independence Day
- 9/23: Calderón addresses UN General Assembly
- 9/24-5: G-20 summit, Pittsburgh
October
- 10/18: Tabasco and Coahuila state elections
November
- 11/2: Day of the Dead
- 11/15: Deadline for Congress to pass budget laws
- 11/15: Term ends for President of CNDH (Human Rights Commission)
- 11/16: Revolution Day
- 11/30: Term ends for two Supreme Court ministers
December
- 12/12: Virgin of Guadalupe
- 12/25: Christmas
- 12/31(?): Term ends for President of Banco de México
