I apologize if I misunderstand your question. But it seems you just want to repeat your numberArray 31 times, console it out.
dayz = 31;
var numberArray = [{obj:1}, {obj:2}, {obj:3}, {obj:4}, {obj:5}];
jQuery.each(new Array(dayz), function(i){
jQuery.each(numberArray, function(idx, val){
console.log(numberArray[idx%dayz]);
})
});