CNB FINANCIAL ANNOUNCES SECOND QUARTER DIVIDEND CLEARFIELD, PENNSYLVANIA – May 8, 2012

The Board of Directors of CNB Financial Corporation [Nasdaq: CCNE] has announced the declaration of 16.5 cents per share quarterly dividend payable on June 15, 2012 to shareholders of record on June 1, 2012.

CNB Financial Corporation is a $1.7 billion bank holding company conducting business primarily through CNB Bank, the Corporation's principal subsidiary. CNB Bank operations include a loan production office, a private banking division, and twenty-seven full-service offices in Pennsylvania, including ERIEBANK, a division of CNB Bank.

For further information regarding the stock of CNB Financial Corporation, please call

(814) 765-9621, CNB Bank Stock Transfer Department or contact any brokerage firm. The identifying symbol for this security is CCNE.

CNB Bank websites can be found at www.bankcnb.com and www.eriebank.net.