States are abbreviated in AP style. Use postal abbreviations only when writing a complete address that includes street number, city, state, and zip code. For example: In AP style, Virginia is abbreviated Va., not VA, which is the postal abbreviation.
Months are abbreviated when used with a specific day of the month. For example: Aug. 24. Months with five letters or fewer are always spelled out. For example: March 9, 2005. When using a month with a year and without a specific date, the month is always spelled out and no comma is placed between the month and the year. For example: January 2005.