Answer
${{3}^{\circ }}\text{F}$
Work Step by Step
Consider the given table.
From the table, the temperature at a wind speed of $55\,\text{mph}$ for air temperature ${{5}^{\circ }}\text{F}$is $-{{25}^{\circ }}\text{F}$.
And, the temperature at a wind speed of $10\,\text{mph}$for air temperature $-{{5}^{\circ }}\text{F}$is $-{{22}^{\circ }}\text{F}$.
Difference between the temperatures is,
$\begin{align}
& \text{diff}=-22-\left( -25 \right) \\
& =-22+25 \\
& =3
\end{align}$