IPA: /ˌklaɪməˈtɒlədʒɪkəl/
KK: /klaɪməˈtɑlədʒɪkəl/
Related to the study of climate and its effects on the environment and weather patterns.
The climatological data showed a significant increase in temperature over the last decade.
Climatological → It is formed from "clima" (from Greek "klima", meaning slope or region) and "-logy" (from Greek "logia", meaning study of). The word "climatological" refers to the study of climate and its variations in different regions.
Think of 'clima' as relating to the 'region' or 'slope' of the earth's atmosphere, and '-logy' as the 'study' of that. This helps you remember that climatological is about the study of climate in various regions.