Question

energy and temps: principal temperature controls
in which location would you see the biggest difference between summer and winter temperatures?
a mid - latitude city (~37 deg n latitude) that is along the coast
a low latitude (~13 deg n latitude) that is along a coast
a mid - latitude city (~37 deg n latitude) in the middle of a large continent like north america

Explanation:

Water has a high - specific heat capacity. Coastal areas are moderated by the ocean, which heats and cools more slowly than land. Inland areas in the middle of a continent have no such moderating effect. Mid - latitude regions experience significant seasonal changes in solar radiation. So, a mid - latitude city in the middle of a large continent will have a large temperature difference between summer and winter.

Answer:

A mid - latitude city (~37 deg N latitude) in the middle of a large continent like North America