My traffic drops a lot since Christmas, and the clicks drop to 0 for many days. I guess my traffic comes mainly from North America and those folks do not surf net during the long break.
During the month of December i would have said my adsense revenue increased but since NewYears eve they have dropped off by a 1/3 must be that people are getting back to work after the big pre christmas online shopping spree.
How much traffic did your site have per day? If you have have enough traffic for your site, then this is not good if you did not have clicks in 3 days.