Good morning. Joining me on our call today are Mike O'Sullivan, President and Chief Operating Officer; Gary Cribb, Group Executive Vice President, Stores and Loss Prevention; John Call, Executive Vice President, Finance and Legal; Michael Hartshorn, Executive Vice President and Chief Financial Officer; and Connie Kao, VP, Investor Relations. We'll begin our call today with a review of our third 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 for the quarter were ahead of our forecast despite being up against very strong multiyear comparisons. Earnings per share for the 13 weeks ended November 3, 2018, were $0.91, up from $0.72 for the quarter ended October 28, 2017. Net earnings grew to $338 million, up from $274 million in the prior year. Our third quarter 2018 earnings results include a benefit from tax reform legislation of approximately $0.16 per share.
Sales for the third quarter rose 7% to $3.5 billion, with comparable store sales up 3% over the 13 weeks ended November 4, 2017. This compares to a 4% gain in same-store sales for the prior year period ended October 28, 2017.
The Midwest and Florida were the strongest regions for the quarter, while men's was the top-performing merchandise category.
Though above plan, operating margin of 12.4% for the third quarter was down from last year as higher merchandise margins was more than offset by planned increases in freight and this year's wage investments. For the first 9 months, earnings per share were $3.06, up from $2.36 last year.
Net earnings were $1.1 billion compared to $912 million in the prior year. The year-to-date earnings results include an approximate benefit of $0.51 per share from tax reform legislation. Sales year-to-date rose 8% to $10.9 billion, with comparable store sales up 3% over the 39 weeks ended November 4, 2017. This compares to a 4% gain for the 9 months ended October 28, 2017.
As we entered the third quarter, total consolidated inventories were up 8%, with average in-store inventories up 9% compared to last year.
As planned, store inventories increased due to the earlier Thanksgiving this year. Packaway, as a percent of total inventories, was 41% compared to 46% last year.
Similar to Ross, dd's DISCOUNT continued to post better-than-expected gains in both sales and operating profits for the period.
Turning to our expansion program. We opened 30 new Ross and 10 dd's DISCOUNT locations in the third quarter completing our 2018 store opening program. We expect to end the year with 1,477 Ross and 235 dd's DISCOUNT stores for a net increase of 95 locations for fiscal 2018.
Now Michael Hartshorn will provide further color on our third quarter results and details on our guidance for the remainder of the year.