Exhibit 99.1

News Release

		Contact:		Brian W. Wingard Treasurer (814) 765-9621 FOR IMMEDIATE RELEASE

CNB FINANCIAL CORPORATION REPORTS THIRD QUARTER EARNINGS FOR 2017,

HIGHLIGHTED BY CONTINUED STRONG ORGANIC LOAN GROWTH

Clearfield, Pennsylvania – October 19, 2017

CNB Financial Corporation (“CNB”) (NASDAQ: CCNE), the parent company of CNB Bank, today announced its earnings for the third quarter and first nine months of 2017. Highlights include the following:

Joseph B. Bower, Jr., President and CEO, stated, “The third quarter shows the positive trend in earnings from the almost two year shift in the balance sheet from investments to loans. We will continue to focus on organic customer growth across all brands to further enhance future earnings.”

Net Interest Margin

Net interest margin on a fully tax equivalent basis was 3.80% and 3.76% for the nine months ended September 30, 2017 and 2016, respectively. The yield on earning assets increased 17 basis points from 4.31% for the nine months ended September 30, 2016 to 4.48% for the nine months ended September 30, 2017. Total interest and dividend income increased from $69.5 million for the nine months ended September 30, 2016 to $80.2 million for the nine months ended September 30, 2017. In addition, CNB recorded $2.3 million in interest expense for the nine months ended September 30, 2017 resulting from the issuance of $50 million in subordinated debt on September 29, 2016 to help support balance sheet growth.

Asset Quality

During the three and nine months ended September 30, 2017, CNB recorded a provision for loan losses of $1.4 million and $3.6 million, as compared to a provision for loan losses of $622 thousand and $2.0 million for the three and nine months ended September 30, 2016. Net chargeoffs during the three and nine months ended September 30, 2017 were $819 thousand and $2.0 million, compared to net chargeoffs of $907 thousand and $3.1 million for the three and nine months ended September 30, 2016. CNB Bank net chargeoffs totaled $392 thousand and $1.0 million during the nine months ended September 30, 2017 and 2016, or .03% and .08%, respectively, of average CNB Bank loans. Holiday Financial Services Corporation, CNB’s consumer discount company, recorded net chargeoffs totaling $1.6 million and $2.0 million during the nine months ended September 30, 2017 and 2016, respectively.

The increase in the provision for loan losses recorded in the nine months ended September 30, 2017 compared to the same period of 2016 is primarily attributable to stronger organic loan growth experienced 2017 compared to 2016.

Non-Interest Income

Net realized gains on available-for-sale securities for the nine months ended September 30, 2017 were $1.5 million, including $1.4 million on the sale of two structured pooled trust preferred securities. Net realized gains on available-for-sale securities for the nine months ended September 30, 2016 were $1.0 million, including $922 thousand on the sale of two structured pooled trust preferred securities.

As a result of CNB’s continued focus on growing its Private Client Solutions division, wealth and asset management revenues were $2.8 million in the first nine months of 2017, an increase of 20.8% from $2.3 million in the first nine months of 2016. During the quarter ended September 30, 2017, CNB recorded $592 thousand in income from bank owned life insurance policies, including $301 thousand representing the death proceeds on life insurance policies in excess of the cash surrender value.

Non-Interest Expenses

Total non-interest expenses were $17.6 million and $52.4 million during the three and nine months ended September 30, 2017, compared to $17.1 million and $50.7 million during the three and nine months ended September 30, 2016. Included in non-interest expenses during the nine months ended September 30, 2016 were $3.6 million of non-recurring items, which included merger related expenses of $481 thousand, costs associated with our core processing system upgrade of $1.6 million, and a prepayment penalty associated with the early payoff of long-term borrowings of $1.5 million.

Salaries and benefits expense increased $3.1 million, or 13.0%, during the nine months ended September 30, 2017 compared to the nine months ended September 30, 2016. As of September 30, 2017, CNB had 490 full-time equivalent staff, compared to 471 full-time equivalent staff as of September 30, 2016. The staff added during this period included 17 employees for CNB’s newest division, BankOnBuffalo. Occupancy expenses increased $1.1 million, or 18.3%, during the nine months ended September 30, 2017 compared to the nine months ended September 30, 2016, resulting primarily from two locations acquired from Lake National Bank in Mentor, Ohio in July 2016, as well as locations in Worthington, Ohio; Ashtabula, Ohio; Blair County, Pennsylvania; and Buffalo, New York that have been opened since the end of the third quarter of 2016.

About CNB Financial Corporation

CNB Financial Corporation is a financial holding company with consolidated assets of approximately $2.75 billion that conducts business primarily through CNB Bank, CNB Financial Corporation’s principal subsidiary. CNB Bank is a full-service bank engaging in a full range of banking activities and services, including trust and wealth management services, for individual, business, governmental, and institutional customers. CNB Bank operations include a private banking division, one loan production office, 33 full-service offices in Pennsylvania and northeast Ohio, including ERIEBANK, a division of CNB Bank, 9 full-service offices in central Ohio conducting business as FCBank, a division of CNB Bank, and a full-service office in Buffalo, New York conducting business as Bank on Buffalo, a division of CNB Bank. More information about CNB and CNB Bank may be found on the Internet at www.cnbbank.bank.

Forward-Looking Statements

This press release includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, with respect to CNB’s financial condition, liquidity, results of operations, future performance and business. These forward-looking statements are intended to be covered by the safe harbor for “forward-looking statements” provided by the Private Securities Litigation Reform Act of 1995. Forward-looking statements are those that are not historical facts. Forward-looking statements include statements with respect to beliefs, plans, objectives, goals, expectations, anticipations, estimates and intentions that are subject to significant risks and uncertainties and are subject to change based on various factors (some of which are beyond CNB’s control). Forward-looking statements often include the words “believes,” “expects,” “anticipates,” “estimates,” “forecasts,” “intends,” “plans,” “targets,” “potentially,” “probably,” “projects,” “outlook” or similar expressions or future conditional verbs such as “may,” “will,” “should,” “would” and “could.” CNB’s actual results may differ materially from those contemplated by the forward-looking statements, which are neither statements of historical fact nor guarantees or assurances of future performance. For more information about factors that could cause actual results to differ from those discussed in the forward-looking statements, please refer to the “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” sections of and the forward-looking statement disclaimers in CNB’s annual and quarterly reports.

The forward-looking statements are based upon management’s beliefs and assumptions and are made as of the date of this press release. CNB undertakes no obligation to publicly update or revise any forward-looking statements included in this press release or to update the reasons why actual results could differ from those contained in such statements, whether as a result of new information, future events or otherwise, except to the extent required by law. In light of these risks, uncertainties and assumptions, the forward-looking events discussed in this press release might not occur and you should not put undue reliance on any forward-looking statements.

Financial Tables

The following tables supplement the financial highlights described previously for CNB Financial Corporation.

The following is a non-GAAP disclosure of pre-tax net income excluding the effects of net realized gains on the sale of available for sale securities and one-time expenses including prepayment penalties on long-term borrowings, core processing conversion costs, and merger costs: