ISSAQUAH, Wash. (

TheStreet

) --

Costco Wholesale

(COST) - Get Report

, the warehouse retailer, said comparable-store sales in January rose 8%, while net sales for the four weeks ended Jan. 31 increased 10% to $5.62 billion.

Analysts surveyed by Thomson Reuters expected Costco to post a same-store sales rise of 7.2% in January.

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Costco said comparable-store sales in the U.S. gained 4% during January, while international same-store sales rose 25%.

Costco, in a press statement Thursday, said gas price inflation and stronger foreign currencies had a positive impact on January's sales. Excluding these factors, January same-store sales rose 2%.

-- Reported by Joseph Woelfel in New York.

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