A weather researcher compared average monthly temperature data for Athens, Greece, and Madrid, Spain.
\begin{tabular}{|l|l|l|}
\hline & Athens & Madrid \\
\hline Mean & \( 63.5^{\circ} \mathrm{F} \) & \( 59^{\circ} \mathrm{F} \) \\
\hline Range & \( 18.4^{\circ} \mathrm{F} \) & \( 20.4^{\circ} \mathrm{F} \) \\
\hline
\end{tabular}
Based on these data, which statements are true?
A. On average, Athens has a higher monthly temperature. Its monthly temperatures also vary more.
B. On average, Athens has a higher monthly temperature. However, temperatures in Madrid vary more.
C. On average, Madrid has a higher monthly temperature. However, temperatures in Athens vary more.
D. On average, Madrid has a higher monthly temperature. Its monthly temperatures also vary more.