I copied the web address for last week's news release and changed the date to 20210304. Here it is:
As far as cold weather effect, some of it may have been smoothed out by seasonal adjustment. The unadjusted numbers showed more initial claims than expected, for the week ending Feb 27th.
The advance number of actual initial claims under state programs, unadjusted, totaled 748,078 in the week ending February 27, an increase of 31,519 (or 4.4 percent) from the previous week. The seasonal factors had expected an increase of 22,358 (or 3.1 percent) from the previous week. There were 216,982 initial claims in the comparable week in 2020. In addition, for the week ending February 27, 53 states reported 436,696 initial claims for Pandemic Unemployment Assistance.