For $107$ consecutive days, a process engineer has measured the temperature of champagne bottles as they are made ready for serving. Each day, she took a sample of $9$ bottles. The average across all $963$ bottles $(107$ days, $9$ bottles per day$)$ was $60$ degrees Fahrenheit. The standard deviation across all bottles was $1\mathrm{.}4$ degree.

$($Round your intermediate calculations and final answer to $4$ decimal places.$)$

When constructing an $x-$bar chart, what would be the upper control limit$?$

degrees Fahrenheit