Good afternoon. Joining me on our call today are Michael Balmuth, Executive Chairman; Michael O'Sullivan, President and Chief Operating Officer; Gary Cribb, Executive Vice President, Stores and Loss Prevention; John Call, Executive Vice President, Finance and Legal; Michael Hartshorn, Group's Senior Vice President and Chief Financial Officer; and Connie Kao, Vice President, Investor Relations.
We'll begin our call today with a review of our second quarter and year-to-date performance, followed by our outlook for the remainder of the year. Afterwards, we'll be happy to respond to any questions you may have.
As noted in today's press release, both sales and earnings results in the second quarter were ahead of our forecast. Earnings per share for the period were $0.71, up 13% on top of an 11% increase in the prior year. These results include an approximate $0.01 benefit from favorable expense timing that is expected to reverse in the second half.
Net earnings for the second quarter grew to $282 million compared to $259 million for the same period last year. Sales rose 7% to $3,181,000,000, with comparable store sales up 4% on top of a 4% gain in the prior year. Higher merchandise gross margin during the second quarter drove a 50 basis point increase in operating margin to 14.4%. For the first 6 months of fiscal 2016, earnings per share were $1.44, up 9% on top of a 15% increase in the prior year. Net earnings were $573 million, up from $541 million in last year's first half. Sales year-to-date rose 6% to $6,270,000,000, with comparable store sales up 3% versus a 5% gain in the prior year period.
dd's DISCOUNTS again posted better-than-expected gains in both sales and profits for the quarter as customers continued to respond positively to their merchandise offerings. During the quarter, California and the Midwest were the strongest regions, while shoes and home were the best-performing merchandise categories at Ross. We also made some progress improving the assortments in our ladies' apparel businesses, where we struggled during the spring season. As we ended the second quarter, total consolidated inventories were up 3% compared to the prior year, with average in-store inventories down 1%. Packaway as a percent of total inventories was 47% compared to 46% at this time last year.
Turning to our expansion program. Store growth remains on track as 24 new Ross and 7 dd's DISCOUNTS opened in the second quarter. For the full year, we continued to plan for a total of 70 new Ross and 20 dd's DISCOUNTS locations. As usual, these numbers do not reflect our plans to close or relocate a handful of stores. Now Michael Hartshorn will provide further color on our second quarter results and details on our second half guidance.