In addition, the number of people staying on the benefit rolls hit a record high in the week ended Jan. 24, showing the weak labor market has yet to hit bottom. On Friday, the Labor Department will issue the employment report for January, and analysts are expecting a drop of 525,000 payroll jobs.
The department said initial claims for state unemployment insurance benefits rose 35,000 to a seasonally adjusted 626,000 in the week ended January 31, the highest since the week ending October 30, 1982. The prior week's number was revised up to 591,000 from 588,000.
Analysts polled by Reuters had forecast 585,000 new claims.
The number of people staying on the benefits roll after drawing an initial week of aid surged by 20,000 to a record 4.788 million in the week ended January 24, the latest week for which the data is available, from 4.768 million the previous week.
The four-week moving average for new claims, considered to be a better gauge of underlying trends as it irons out week-to-week volatility, rose to 582,250, the highest reading since the week ending December 4, 1982.