The Labor Department says the four-week average, a less volatile measure, rose 8,000 to 360,750, the highest in six weeks. A department spokesman says heavy snowstorms in the Northeast didn't affect the total.
Applications are a proxy for layoffs. They have trended downward recently. The four-week average has declined 7.5 percent since mid-November and fell to a five-year low three weeks ago.
Still, the increase puts applications back in the 360,000-to-390,000 range, where they have fluctuated since early last year. Employers have added an average of 181,000 jobs a month since then.