noun
continental climate
A climate type characterized by large seasonal temperature differences, typical of inland areas far from oceans.
モスクワは大陸性気候で、夏と冬の気温差が激しい。
Moscow has a continental climate, with a large temperature difference between summer and winter.
Compound of 大陸 (continent) + 性 (-type, -nature) + 気候 (climate). A straightforward modern technical term.