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        // Extra credit
        String[] months = {"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"};
 
        System.out.println("Average high temperatures by month");
        int startDate = 0;
        for (int month = 1; month <=12; month++) {
 
            System.out.println(months[month - 1] + ": " + arrayAvg(Arrays.copyOfRange(dailyMaxTemps, startDate, startDate + daysPerMonth[month -1])));
            startDate += daysPerMonth[month - 1];
        }