climatic
adj.relating to the weather conditions of a specific area over a long period of time.
adj.relating to the climate or long-term atmospheric conditions of a specific region.
“The region is facing severe climatic changes.”
“Researchers are studying how climatic shifts in the Arctic affect global sea levels over several decades.”
“The unique climatic conditions of the valley, characterized by high humidity and consistent temperatures, allow rare tropical plants to thrive far from their native habitats.”
Typically used attributively before a noun.
Learners often confuse 'climatic' (relating to climate) with 'climactic' (relating to a climax or peak moment).
“In 1815, a mountain in Indonesia named Tambora exploded, sending sulfur into the upper atmosphere and triggering broad climatic changes.”
“Although higher temperatures and reduced rainfall predicted under future climatic conditions weakened the effect, they did not eliminate it.”
From climate + -ic.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.