Question

the type of climate where there is very little difference in the summer and winter temperature

Answer 1

Mediterranean climate is the one which has not much of difference in weather conditions.  It is on the coast of Mediterranean sea.

Answer 2

Mediterranean climate is the type of climate which dosen't/rarely have any difference In either Summer or Winter.  The Mediterranean contries are located in 31 to 40 degree North and south.
Some countries in Mediterranean region- southwestern Australia, central Chile, Western Cape of south Africa Etc.