The weather in some location averaged over some long period of time WordNet 3.0 & Open English WordNet

Climate is the long-term weather pattern in a region, typically averaged over 30 years. Wikipedia

The climes in classical Greco-Roman geography and astronomy were the divisions of the inhabited portion of the spherical Earth by geographic latitude. Wikipedia

A notion of dividing the Earth into zones in Classical Antiquity based on their inclination or latitude Wikipedia Disambiguation

Statistics of temperature, humidity, atmospheric pressure, wind, precipitation, atmospheric particle count and other meteorological elemental measurements in a given region over long periods Wikidata

Divisions of the inhabited portion of the Earth by geographic latitude Wikidata

The average weather condition in a region of the world. OmegaWiki

The long-term manifestations of weather and other atmospheric conditions in a given area or country, now usually represented by the statistical summary of its weather conditions during a period long enough to ensure that representative values are obtained (generally 30 years). Wiktionary

Long-term atmospheric conditions. Wiktionary (translation)