JSFiddle - React, Tailwind, and code Playground

HTML

<select id="pickWinners_month"></select>

JavaScript

var monthNames = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];

var today = new Date();
var year = today.getFullYear();
var month = today.getMonth();
var i = 0;

do {    
    if (month < 0) {
        month = 11;
        year--;
    }
    
    $("#pickWinners_month").append($("<option />").val((month > 9 ? "" : "0") + month + "/01/" + year).html(monthNames[month] + " " + year));
    
    month--;
    i++;
} while (i < 7);