Possible Clues:

• Busy month at the IRS
• Trouble about public relations this month
• The month with All Fools' Day
• 98 Across time
• 30-day period
• ... had 1/4 of dollar pie sent round!
• Boston Marathon time
• Part of spring quietly threaded through a short needle
• Month for fools?
• Five leading parliamentarians go off for a month